Consulta: subjectFacets:"Carbohydrate"
Registros recuperados: 33
Data/hora: 01/06/2024 02:26:32

In vitro Dendrobium nobile plant growth and rooting in different sucrose concentrations
Provedor de dados: 75
Autores: Faria,Ricardo T. de; Rodrigues,Fabiana N.; Oliveira,Luciana do V.R.; Müller,Cláudio.
Sucrose is a very important component in in vitro culture media, serving as a source of carbon and energy. In this paper, the rooting and in vitro growth of Dendrobium nobile Lindl (Orchidaceae) were studied using different sucrose concentrations (0 g L-1; 5 g L-1; 10 g L-1; 20 g L-1; 30 g L-1 and 60 g L-1), in a modified MS medium containing half the regular concentration of macronutrients at pH 5.8. Greater increases in plant height (4.21±0.6 cm) and high seedling multiplication (1:4) were observed in the 60 g L-1 sucrose treatment, even without the addition of plant hormones. Sucrose concentration in the culture medium did not influence in vitro plant rooting.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendrobium nobile; Orchidaceae; Carbohydrate; Tissue culture.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362004000400023

Girassol: derivados protéicos.
Provedor de dados: 14
Autores: CARRAO-PANIZZI, M.C.; MANDARINO, J. M. G.
A semente: caracteristicas gerais; Composicao quimica das sementes; Proteinas do girassol; Aminoacidos; Caracterizacao das proteinas; Carboidratos, minerais e vitaminas; Fatores antinutricionais; Compostos fenolicos; Processamento de girassol para utilizacao de suas proteinas: produtos proteicos de girassol; Farinhas; Concentrado proteico; Isolado proteico; Extrato soluvel ("Leite de girassol"); Valor nutricional dos produtos proteicos do girassol; Propriedades funcionais das proteinas; Alteracoes em proteinas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Oil; Protein; Carbohydrate; Brasil; Extrato soluvel; Sunflower; Seed.; Aminoácido; Carboidrato; Composição Química; Girassol; Nutrição Humana; Óleo; Proteína; Semente; Tecnologia de Alimento; Valor Nutritivo.; Amino acids; Brazil; Chemical composition; Food technology; Human nutrition; Nutritive value.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445734

Assessment of biochemical methods to detect enzymatic depolymerization of polysaccharides
Provedor de dados: 5
Autores: Rigouin, Coraline; Delbarre Ladrat, Christine; Sinquin, Corinne; Colliec-jouault, Sylvia; Dion, M.
To find biocatalyst allowing depolymerization of new polysaccharides, one needs to get a sensitive and well adapted method to a screening program. This led us to compare biochemical methods of detection of the depolymerization. Currently used methods such as reducing sugars assays, double bond monitoring or molecular weight determination were tested to follow the kinetic of depolymerization with different enzyme / polysaccharide couples. The range of concentrations of assorted enzymes allowed us to identify the most sensitive and appropriate method to detect polysaccharide degradation. Reducing sugars assays are quantitative, sensitive and almost usable with all kind of polysaccharide but some compounds may interfere with them. When polysaccharide is...
Tipo: Text
Palavras-chave: Detection; Enzyme; Depolymerization; Carbohydrate.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2008/publication-4723.pdf

Effect of sediment nearness on the metabolic enzyme activity and energy state of the oyster Crassostrea gigas
Provedor de dados: 5
Autores: Le Moullac, Gilles; Fleury, Pierre-gildas; Le Coz, Jean-rene; Moal, Jeanne; Samain, Jean-francois.
This study was designed to assess in situ the effects of sediment nearness on Crassostrea gigas metabolism. One year-old oysters were reared for 5 months (April-August) in plastic bags on metallic frames at 10 and 60 cm off the sediment at the beginning of April. The management of the energetic resources (storage, consumption) was estimated with respect to biochemical changes of proteins, lipids and carbohydrates. In order to evaluate the  effect of the sediment nearness at cellular level, the metabolic rate was evaluated by assessing pyruvate kinase (PK) and phosphoenolpyruvate carboxykinase (PEPCK) enzyme activities and electron transport system (ETS) activity. The metabolic pathways were assessed by measuring ATP and intermediary metabolites such as...
Tipo: Text
Palavras-chave: Aspartate; Succinate; Alanine; ETS; PEPCK; PK; Carbohydrate; Lipids; Proteins; Sediment; Oyster; Aspartate; Succinate; Alanine; ETS; PEPCK; PK; Glucides; Lipides; Proteines; Sédiment; Huître.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2803.pdf

Pyruvate kinase activity as index of carbohydrate assimilation by mesozooplankton: an early field implementation in the Bay of Biscay, NE Atlantic
Provedor de dados: 5
Autores: Bergeron, Jean-pierre; Herbland, Alain.
Estimates of carbohydrate assimilation within the mesozooplankton compartment are a fundamental concern in oceanography because they give a general expression of the biologically-regulated incorporation of metabolic fuel produced from inorganic nutrients by phytoplankton in the sea. A new tool is proposed for the assessment of such processes. It is based on the measurement of the activity of an enzyme, pyruvate kinase (PK), on samples of the whole mesozooplankton community. Here, the results are presented of an early attempt at such an implementation in the Bay of Biscay (north-east Atlantic) in springtime. A main area situated in front of an estuary (Gironde) has been extensively studied-the same sampling grid was covered on three occasions (two 20 day...
Tipo: Text
Palavras-chave: Bay of Biscay; Zooplankton; Phytoplankton; Pyruvate kinase; Carbohydrate.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-452.pdf

Enzyme-assisted extraction (EAE) for the production of antiviral and antioxidant extracts from the green seaweed Ulva armoricana (Ulvales, Ulvophyceae)
Provedor de dados: 5
Autores: Hardouin, Kevin; Bedoux, Gilles; Burlot, Anne-sophie; Donnay-moreno, Claire; Berge, Jean-pascal; Nyvall-collen, Pi; Bourgougnon, Nathalie.
In order to develop innovative methods for the production of bioactive extracts with potential health benefits, enzyme-assisted extraction has been applied for the bioconversion of Ulva armoricana (Ulvales, Ulvophyceae). The extraction yields, chemical composition, the antioxidant and antiviral activities were determined to assess the efficiency of six commercial enzymatic preparations. Endo-protease treatments significantly increased the extraction yields compared to the control. The organic matter, neutral sugar and protein contents were increased in all extracts compared to an extraction with water, up to 2.0-fold, 2.7-fold and 1.75-fold, respectively. The samples prepared by a multiple-mix of glycosyl-hydrolases and an exo-β-1,3(4)-glucanase revealed...
Tipo: Text
Palavras-chave: Ulvan; Antiviral activity; Carbohydrate; Endo-protease; Bioconversion; Biorefinery.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00321/43187/45542.pdf

Composition en cires, triglycérides, protéines et sucres du mésozooplancton
Provedor de dados: 5
Autores: Alayse-danet, Anne-marie; Daniel, Jean-yves; Le Coz, Jean-rene.
Analyses effectuées sur le zooplancton total des pêches verticales au WP2 et sur des animaux triés à partir des pêches horizontales (Campagne RCA sur les côtes Atlantiques du Portugal). On ne signale pas de différence significative entre la composition biochimique des populations du large et de la côte
Tipo: Text
Palavras-chave: Zooplancton; Milieu marin; Composition chimique; Glucide; Cire animale; Triglycéride; Protéine; Océan Atlantique Nord; Upwelling; Méiofaune; Portugal; France; Zone côtière; Zooplankton; Marine environment; Chemical composition; Carbohydrate; Animal wax; Triglyceride; Proteins; North Atlantic; Upwelling; Meiofauna; Portugal; France; Coastal zone.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00189/29976/28429.pdf

Effect of P depletion on the functional pools of diatom carbohydrates, and their utilization by bacterial communities
Provedor de dados: 5
Autores: Labry, Claire; Delmas, Daniel; Moriceau, Brivaela; Gallinari, Morgane; Quere, Julien; Youenou, Agnes.
Phosphorus (P) limitation of phytoplankton growth is known to affect the accumulation and release of carbohydrates (CHO) by micro-algae. However, relatively little is known about the fate of algal exudates, notably their bacterial degradation. The CHO chemical characterization is also not exhaustive, especially in ‘functional’ pools relevant for phytoplankton physiology (particulate reserve [R] or structural [S] CHO) and for bacterial degradation (dissolved mono- [MDCHO] and polysaccharides [P-DCHO]). In this study, we investigated how P depletion and repletion affect the CHO composition in diatom Thalassiosira weissflogii cultures, and the shortterm response of free and diatom-attached bacteria in terms of abundance and potential βglucosidase activity...
Tipo: Text
Palavras-chave: P limitation; Phytoplankton; Diatom; Bacteria; Mineralization; Carbohydrate; Glucosidase.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00628/74045/73532.pdf

The Role of Carbohydrates in Infection Strategies of Enteric Pathogens
Provedor de dados: 19
Autores: Kato, Kentaro; Ishiwa, Akiko; 加藤, 健太郎.
Enteric pathogens cause considerable public health concerns worldwide including tropical regions. Here, we review the roles of carbohydrates in the infection strategies of various enteric pathogens including viruses, bacteria and protozoa, which infect the epithelial lining of the human and animal intestine. At host cell entry, enteric viruses, including norovirus, recognize mainly histo-blood group antigens. At the initial step of bacterial infections, carbohydrates also function as receptors for attachment. Here, we describe the function of carbohydrates in infection by Salmonella enterica and several bacterial species that produce a variety of fimbrial adhesions. During invasion by enteropathogenic protozoa, apicomplexan parasites utilize sialic acids...
Palavras-chave: Bacteria; Carbohydrate; Enteric pathogen; Infection; Protozoa; Virus.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4299

Growth and energy metabolism of Nile tilapia juveniles fed glycerol
Provedor de dados: 86
Autores: Costa,Diego Vicente da; Paulino,Renan Rosa; Okamura,Daniel; Oliveira,Marinez Moraes de; Rosa,Priscila Vieira e.
The objective of this work was to evaluate the effect of inclusion of dietary glycerol in replacement to starch on the growth and energy metabolism of Nile tilapia juveniles. The experiment was carried out in a completely randomized design with four treatments (0, 5, 10, and 15% purified glycerol) and six replicates. Pelleted, isonitrogenous, and isocaloric diets were provided for 60 days. Growth performance parameters and muscle glucose and protein concentrations were not affected by dietary glycerol levels. The treatment with 15% glycerol presented higher levels of muscle and liver triglycerides. A quadratic effect of treatments on muscle and liver triglyceride concentrations was observed. The treatment with 0% glycerol presented higher hepatic glucose...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oreochromis niloticus; Alternative feed; Carbohydrate; Nutrition.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000500347

Gastrointestinal transit of extruded or pelletized diets in pacu fed distinct inclusion levels of lipid and carbohydrate
Provedor de dados: 86
Autores: Honorato,Claucia Aparecida; Almeida,Luciana Cristina de; Nunes,Cleujosí da Silva; Carrilho,Elma Neide Vasconcelos Martins; Moraes,Gilberto.
The objective of this work was to evaluate the effect of pelletized or extruded diets, with different levels of carbohydrate and lipid, on the gastrointestinal transit time (GITT) and its modulation in pacu (Piaractus mesopotamicus). One hundred and eighty pacu juveniles were fed with eight isonitrogenous diets containing two carbohydrate levels (40 and 50%) and two lipid levels (4 and 8%). Four diets were pelletized and four were extruded. Carbohydrate and lipid experimental levels caused no changes to the bolus transit time. However, the bolus permanence time was related to diet processing. Fish fed pelletized diets exhibited the highest gastrointestinal transit time. Regression analysis of bolus behavior for pelletized and extruded diets with 4% lipid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piaractus mesopotamicus; Carbohydrate; Lipid; Starch gelatinization; Viscosity.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014001100829

Intracellular and intercellular compartmentation of carbohydrate metabolism in leaves of temperate gramineae
Provedor de dados: 88
Autores: POLLOCK,CHRISTOPHER J.; FARRAR,JOHN; KOROLEVA,OLGA A.; GALLAGHER,JOE A.; TOMOS,A. DERI.
This review considers the importance of compartmentation in the regulation of carbohydrate metabolism in leaves. We draw particular attention to the role of the vacuole as a site for storage of soluble sugars based on sucrose, and discuss briefly their characteristic metabolism. We also point out inconsistencies between the observed properties of vacuoles and the behaviour in vitro of the enzymes of fructan biosynthesis that do not support the hypothesis that the vacuole is the site of synthesis as well as of storage. We also consider compartmentation of carbohydrate metabolism between different cell types, using mainly our studies on leaves of temperate C3 gramineae. Here we present evidence of significant differences in carbon metabolism between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf; Carbohydrate; Compartmentation; Mesophyll; Vacuole.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000400001

Alteração no potencial osmótico e teor de carboidratos solúveis em plantas jovens de lobeira (Solanum lycocarpum St.-Hil.) em resposta ao estresse hídrico
Provedor de dados: 88
Autores: CHAVES FILHO,JALES TEIXEIRA; STACCIARINI-SERAPHIN,ELIANE.
Solanum lycocarpum é uma espécie típica da vegetação do cerrado brasileiro e tem demonstrado resistência à seca que ocorre em seu ambiente. O ajustamento osmótico é um decréscimo do potencial osmótico causado pelo acúmulo de solutos nas células, o qual mantém o gradiente de potencial hídrico e, ao mesmo tempo, a turgescência necessária ao crescimento celular. A influência do estresse hídrico no potencial osmótico e no teor de carboidratos solúveis foi investigada neste trabalho. A análise dos resultados mostrou que as plantas de Solanum lycocarpum apresentaram redução significativa nos valores de potencial osmótico em resposta ao estresse hídrico. O aumento no teor de carboidratos solúveis foi verificado em plantas sob condições estressantes em casa de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osmotic adjustment; Water stress; "cerrado" vegetation; Savannah; Carbohydrate.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000200010

Selection of artificial hosts for oviposition by wild Anastrepha obliqua (Macquart) (Diptera, Tephritidae): influence of adult food and effect of experience
Provedor de dados: 92
Autores: Leal,Thamara A. B. S.; Zucoloto,Fernando S.
Several factors influence the selection of oviposition substrates by insects. The aim of the present work was to find answers to the following questions related to the oviposition behavior of Anastrepha obliqua. Can carbohydrates (glucose or sucrose) present in the adult diet have influence on the female preference for an oviposition substrate with similar composition? Can the previous experience with a host containing one of mentioned carbohydrates interfere in further selection of oviposition substrates? The results showed that the kind of carbohydrate present in the adult diet did not affect the female preference for an artificial oviposition substrate, neither when it was presented by itself nor in combination with brewer's yeast. The effect of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrate; Feeding behavior; Fruit flies; Induced preference; Oviposition behavior.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000300023

Metabolic responses of guava trees irrigated withdifferent N and K levels in São Francisco Valley
Provedor de dados: 94
Autores: Dantas,Bárbara França; Pereira,Maiane Santos; Ribeiro,Luciana de Sá; Maia,Joselanne Luiza Trajano; Silva,Davi José; Duenhas,Luiza Helena; Lima,Maria Auxiliadora Coelho de; Bassoi,Luis Henrique.
The guava (Psidium guajava L.) cv. Paluma has been cultivated in São Francisco Valley, Northeastern of Brazil, for in natura consumption and processing purposes. In spite of its importance, there are few scientific knowledge regarding guava physiology, nutrition, irrigation and fertigation. The objective of this work was to evaluate the effect of weather conditions and different concentrations of N and K applied by fertigation in foliar contents of reducing sugars, total soluble sugars, starch, sucrose, amino acids, and proteins. The field experiment was carried out at Bebedouro Experimental Field and the biochemical evaluations at the Laboratory of Seed and Plant Physiology, both located at Embrapa Semi-Árido, Petrolina-PE. The doses of 200 g N and 100 g...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psidium guajava; Primary metabolism; Carbohydrate.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452007000200026

Methodological challenges in carbohydrate analyses
Provedor de dados: 96
Autores: Hall,Mary Beth.
Carbohydrates can provide up to 80% of the dry matter in animal diets, yet their specific evaluation for research and diet formulation is only now becoming a focus in the animal sciences. Partitioning of dietary carbohydrates for nutritional purposes should reflect differences in digestion and fermentation characteristics and effects on animal performance. Key challenges to designating nutritionally important carbohydrate fractions include classifying the carbohydrates in terms of nutritional characteristics, and selecting analytical methods that describe the desired fraction. The relative lack of information on digestion characteristics of various carbohydrates and their interactions with other fractions in diets means that fractions will not soon be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analysis; Carbohydrate; Fiber; Starch; Sugars.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000032

Somatic embryogenesis in Citrus sinensis, C. reticulata AND C. nobilis x C. deliciosa
Provedor de dados: 63
Autores: Ricci,Adriana Patrícia; Mourão Filho,Francisco de Assis Alves; Mendes,Beatriz Madalena Januzzi; Piedade,Sonia Maria de Stefano.
Most of the plant regeneration processes in citrus, through tissue culture, involve indirect somatic embryogenesis. The optimization of these processes is important for the development of in vitro plant improvement and micropropagation studies. Studies to evaluate the effect of different carbohydrates in somatic embryogenesis were conducted using calli from 'Ponkan' mandarin (Citrus reticulata, Blanco), 'Cravo' mandarin (C. reticulata), 'Itaboraí' sweet orange (C. sinensis L. Osbeck.), 'Valencia' sweet orange (C. sinensis) and 'Kinnow' mandarin (C. nobilis Loureiro x C. deliciosa Tenore). The culture medium used was MT supplemented with sucrose, galactose, glucose, maltose or lactose with the following concentrations of 18, 37, 75, 110, and 150 mM. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callus; Carbohydrate; Citrus; Somatic embryo.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000100005

Anatomical and physiological modifications of micropropagated 'Caipira' banana plants under natural lighy
Provedor de dados: 63
Autores: Costa,Frederico Henrique da Silva; Pasqual,Moacir; Pereira,Jonny Everson Scherwinski; Castro,Evaristo Mauro de.
Research about the use of natural light associated to changes in sucrose levels demonstrated potential in promoting in vitro hardiness of tropical climate species, as well as reducing production costs. However, little is known about physiological and structural changes that happen in the process. This study evaluated the physiological and anatomic performance, and ex vitro survival of micropropagated banana plants in response to cultivation conditions, in the stage of in vitro rooting. Shoots of the 'Caipira' cultivar were cultivated in MS medium, supplemented with 1 mg L-1 NAA and 6 g L-1 agar, in which the following treatments were applied: two sucrose concentrations (15 g L-1 or 30 g L-1) and two cultivation conditions (Natural light - greenhouse and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa spp.; Solar light; Carbohydrate; Water loss; Anatomy.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000300007

ระดับของคาร์โบไฮเดรทและไนโตรเจนในช่วงการเกิดรากของกิ่งตัดชำ กีวีพันธุ์ Bruno
Provedor de dados: 106
Autores: Thawatchai Chinnawong.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Kiwi; Actinidia chinensis Planch.; Bruno; Stem cuttings; Carbohydrate; Nitrogen; Chemical analysis; Root formation; กีวี; พันธุ์บรูโน; กิ่งตัดชำ; คาร์โบไฮเดรท; ไนโตรเจน; การวิเคราะห์ทางเคมี; การเกิดราก.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5517

การวิเคราะห์ลักษณะทางกายภาพและคุณภาพทางเคมีบางประการของเมล็ดข้าวพื้นเมืองภาคตะวันออกเฉียงเหนือของประเทศไทย
Provedor de dados: 106
Autores: Praweena Maneerattanarungroj; Mallika Chantarangsee; Pitakpong Maneerattanarungroj.
Aim of this research was to investigate physical characters and some chemical characters of northeast local rice grain of Thailand. Physical characters were studied in term of weight, width and size of seed and dehusked seed including elongation rate and water absorption rate of 15 rice cultivars (cv.). Chemical test were checked by protein content, amylose content, lipid content, carbohydrate content, vitamin B1, vitamin B2, vitamin B3 and vitamin B6 content. The result showed that the longest seed of 15 cv. was Jowluang, 10.82 and 7.81 mm. in seed and dehusked seed, respectively. In contrast, cv. Kowjowhangmuyai (GS no: 554) showed the shortest seed and dehusked seed was 7.68 and 5.29 mm, respectively. The largest seed and dehusked seed were found in...
Tipo: PhysicalObject
Palavras-chave: Local rice; Protein; Amylose; Lipid; Carbohydrate; Vitamin B; ข้าวพื้นเมือง; โปรตีน; อะมิโลส; ไขมัน; แป้ง; วิตามิน บี; ภาคตะวันออกเฉียงเหนือ.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5392

Asymbiotic culture of Cattleya intermedia Graham (Orchidaceae): the influence of macronutrient salts and sucrose concentrations on survival and development of plantlets
Provedor de dados: 39
Autores: Sasamori,Márcio Hisayuki; Endres Júnior,Delio; Droste,Annette.
ABSTRACTCattleya intermediais an Atlantic Forest species endemic to Brazil that is classed as vulnerable on the list of threatened species. In this study, C. intermedia plantlets were micropropagated in an asymbiotic culture and the influence of different concentrations of sucrose (15, 30, 45 and 60 g L-1, plus a zero sucrose medium) and macronutrient salts (complete Murashige and Skoog (MS) medium and half MS medium (with half-strength macronutrients)) on survival and development of the plantlets was evaluated. In all treatments 100% plantlet survival was achieved. The integrated analysis of height of aerial part, number of leaves per plantlet, fresh mass, number of roots per plantlet and length of the longest root showed that the plantlets exhibited...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Carbohydrate; Conservation; In vitro culture; Orchids; Propagation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300292

Root carbohydrate storage in young saplings of an Amazonian tidal várzea forest before the onset of the wet season
Provedor de dados: 39
Autores: Scarano,Fabio Rubio; Cattânio,José Henrique; Crawford,Robert M.M.
Root starch and glucose content were measured for young saplings of 18 Amazonian tidal várzea tree species during a dry season. The pattern of carbohydrate storage depended on the type of plant involved and soil topography which is directly linked to flood regime. Most plants showed high root carbohydrate content at this point in the dry season, however, several typically flood-tolerant species (particularly palm trees) presented a low root carbohydrate content, suggesting a strategy of acquiring reserves during the wet season to survive the dry season, when depletion occurs. Plant survival in these flood-prone forests seems to be the result of more than only one adaptive mechanism.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Carbohydrate; Flooding; Roots; Tidal várzea.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061994000200002

Polysaccharide extract of Mimosa tenuiflora stem barks stimulates acute inflammatory response via nitric oxide
Provedor de dados: 3
Autores: Silva-Leite, Kaira Emanuella Sales da; Queiroz, Cinthia Silva; Madeira, Juliana da Costa; Soares, Pedro Marcos Gomes; Pereira, Maria Gonçalves; Assreuy, Ana Maria Sampaio.
Mimosa tenuiflora (Mimosaceae) or “jurema-preta” is well distributed in the northeast Brazil, being popularly used to treat skin lesions, burns and inflammation. The healing effect of the alcoholic extract prepared with its barks corroborates the popular use. This study aimed to evaluate the inflammatory response of polysaccharides extracted from M. tenuiflora barks (EP-Mt) by methanol/NaOH and ethanol precipitation. Inflammatory activity was assessed in rat models of acute inflammation (paw edema and peritonitis), by the following parameters: edema, vascular permeability, leukocyte migration, myeloperoxidase activity and pharmacological modulation of nitric oxide and prostaglandins. EP-Mt presented 3.8% yield, 41% carbohydrate and 0.34% protein. EP-Mt...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.00.00.00-6 e 2.10.00.00-0 Mimosaceae; Medicinal plant; Carbohydrate; Inflammation 2.10.06.00-8.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32234

Source-sink relationships in two soybean cultivars with indeterminate growth under water deficit
Provedor de dados: 53
Autores: Silva,Alexandre José da; Magalhães Filho,José Rodrigues; Sales,Cristina Rodrigues Gabriel; Pires,Regina Célia de Matos; Machado,Eduardo Caruso.
Abstract Water deficit is a major factor limiting crop yield in rainfed areas. We hypothesized that under water deficit the decrease of photosynthetic production stimulates: carbohydrate remobilization from leaves, stems and roots to reproductive organs; and decreasing flowering intensity and pod development. The present work aims to study the effect of water deficit during bloom and grain pod-filling stages in two indeterminate soybean cultivar, Vtop and Nidera. The following physiological parameters were evaluated by means of daily CO2 assimilation rate (Ai), dynamic of carbohydrates in tissues, plant growth, grain yield and yield components. The study was conducted in a greenhouse with plants sown in tanks of 0.5 m3. Regardless of the phenological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max L. Merrill; Photosynthesis; Carbohydrate; Pod growth; Seed growth.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100023

Germination, carbohydrate composition and vigor of cryopreserved Caesalpinia echinata seeds
Provedor de dados: 52
Autores: Zanotti,Rafael Fonsêca; Motta,Ludymila Brandão; Bragatto,Juliano; Labate,Carlos Alberto; Salomão,Antonieta Nassif; Vendrame,Wagner A.; Cuzzuol,Geraldo Rogerio Faustini.
The present study investigated the germination and vigor of Caesalpinia echinata (Brazilwood) seeds stored at negative temperatures. Recently harvested seeds were cryopreserved at -18º or -196ºC and periodically evaluated for germination, seed vigor and carbohydrate composition. The temperatures did not influence the germination percentages or vigor. The germination percentage decreased from 88% in recently harvested seeds to 60% after 730 days of storage. The different temperature and storage times tested did not affect the vigor seed germination as indicated by the measures of plant growth and survival. The different temperatures used did not cause changes in the carbohydrate composition. The tegument cell walls were rich in lignin, arabinose and xylose....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilwood; Carbohydrate; Conservation; Germination; Seed bank; Storage.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500004

Ferulic acid depletion by cultured soybean seedlings under action of glucose and methionine
Provedor de dados: 52
Autores: Herrig,Vanessa; Silva,Hélio Cândido da; Ferrarese,Maria de Lourdes Lucio; Ferrarese-Filho,Osvaldo.
Cultured soybean seedlings were used to investigate how glucose or methionine influenced depletion of ferulic acid. Three-day-old seedlings were grown in hydroponic solution containing ferulic acid plus glucose or methionine, and the level of the phenolic acid were monitored in the nutrient culture. The results showed that ferulic acid depletion was more rapid in the presence of those compounds. After 6 h, the increase caused by glucose (0.01 and 0.05 mM) was more pronounced than methionine in the same concentrations. On the other hand, methionine (0.1 and 0.2 mM) increased depletion more significantly than glucose. Results suggested that both compounds might to increase the allelopathic effects of ferulic acid in the seedlings.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max L. Merr.; Root; Phenolic acid; Carbohydrate; Aminoacid.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500011

Effect of carbon source on morphology and histodifferentiation of Araucaria angustifolia embryogenic cultures
Provedor de dados: 52
Autores: Steiner,Neusa; Vieira,Felipe do Nascimento; Maldonado,Sara; Guerra,Miguel Pedro.
The aim of the present work was to establish in vitro conditions for the induction, stabilization and proliferation of embryogenic cultures of A. angustifolia. Pre-cotyledonary staged zygotic embryos inoculated BM medium supplemented with 5 µM 2,4- D, 2 µM BAP and Kin, and 3% maltose or sucrose resulted in 66.7% induction rate. The rate of induction of embryogenic cultures was affected by the carbon source, as well the multiplication and morphology of the embryogenic cultures. Embryogenic cultures maintained in BM medium with maltose presented bipolar morphology. Globular somatic embryos were obtained BM medium with 9% (PEG) and (9%) maltose. These results could establish an in vitro regenerative protocol towards the conservation and improvement of this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cell competence; Somatic embryogenesis; Carbohydrate; Conifers.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800005

The alga Bryothamnion seaforthii contains carbohydrates with antinociceptive activity
Provedor de dados: 56
Autores: Vieira,L.A.P.; Freitas,A.L.P.; Feitosa,J.P.A.; Silva,D.C.; Viana,G.S.B.
Bryothamnion seaforthii, a red alga common to the Northeastern coast of Brazil, was used to prepare the protein fraction F0/60 by ammonium sulfate precipitation. The chromatography of F0/60 on DEAE-Sephadel column resulted in two lectin fractions, PI and PII, which have antinociceptive properties in rodents. We determined the antinociceptive activity of the PII fraction and of a carbohydrate-containing fraction (CF) in mice. The CF was prepared from the dried algae, after digestion with 100 mM sodium acetate, pH 6.0, containing 5 mM cysteine, EDTA and 0.4% papain, at 60ºC. A 10% cetylpyridinium chloride was added to the filtrate, and the precipitate was dissolved with 2 M NaCl:ethanol (100:15, v/v) followed by the carbohydrate precipitation with ethanol....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algae; Antinociceptive activity; Carbohydrate; Bryothamnion seaforthii.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700017

Proteolytic release and partial characterization of human sperm-surface glycopeptides
Provedor de dados: 56
Sperm-surface glycopeptides were obtained from intact sperm membranes after proteolytic release by different enzymatic treatments such as autoproteolysis, trypsin, papain and pronase. Glycopeptides were isolated, their properties and composition were examined, and their monosaccharide and amino acid constituents were characterized. The monosaccharides identified were fucose, mannose, galactose, N-acetylglucosamine, and N-acetylgalactosamine, which form part of more than one type of oligosaccharide units. Autoproteolytic treatment mainly provided O-glycosidic type oligosaccharides, while a mixture of O- and N-glycosidic oligosaccharides was obtained in variable proportions when treated with trypsin, papain or pronase. The highest degree of peptide cleavage...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Carbohydrate; Glycoconjugate; Proteolysis; Human sperm; Peptide.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300013

Lectin-binding properties of Aeromonas caviae strains
Provedor de dados: 58
Autores: Rocha-de-Souza,Cláudio M.; Hirata-Jr,Raphael; Mattos-Guaraldi,Ana L.; Freitas-Almeida,Angela C.; Andrade,Arnaldo F. B.
The cell surface carbohydrates of four strains of Aeromonas caviae were analyzed by agglutination and lectin-binding assays employing twenty highly purified lectins encompassing all sugar specificities. With the exception of L-fucose and sialic acid, the sugar residues were detected in A. caviae strains. A marked difference, however, in the pattern of cell surface carbohydrates in different A. caviae isolates was observed. Specific receptors for Tritricum vulgaris (WGA), Lycopersicon esculentum (LEL) and Solanum tuberosum (STA) (D-GlcNAc-binding lectins) were found only in ATCC 15468 strain, whereas Euonymus europaeus (EEL, D-Gal-binding lectin) sites were present exclusively in AeQ32 strain, those for Helix pomatia (HPA, D-GalNAc-binding lectin) in AeC398...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aeromonas caviae; Lectin; Carbohydrate; Cell surface.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200003

Moderate warm temperature improves shoot growth, affects carbohydrate status and stimulates photosynthesis of sweet orange plants
Provedor de dados: 61
Autores: Ribeiro,Rafael Vasconcelos; Machado,Eduardo Caruso; Espinoza-Núñez,Erick; Ramos,Rômulo Augusto; Machado,Daniela Favero São Pedro.
Citrus plants were grown under two thermal conditions for evaluating carbon metabolism acclimation to moderate warm temperature (30/20ºC, day/night), and its likely impact on plant growth. As reference, plants were grown at 25/20ºC, in which they were subjected to optimum temperature for photosynthesis during the diurnal period (25ºC). Higher photosynthetic rates were found at 30/20ºC as compared to 25/20ºC in both mature and young leaves, being this response associated with higher stomatal conductance. After 30 days of thermal treatment, plants grown at 30/20ºC presented higher shoot growth as compared to those at 25/20ºC. The carbohydrate concentration decreased in stem and root tissues, while it increased in leaf tissues under moderate warm conditions....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus; Biomass; Carbohydrate; Leaf gas exchange; Acclimation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000100006

Some aspects of citrus ecophysiology in subtropical climates: re-visiting photosynthesis under natural conditions
Provedor de dados: 61
Autores: Ribeiro,Rafael V.; Machado,Eduardo C.
In this review we re-visit and discuss the current knowledge on ecophysiology of citrus trees, addressing the influence of environmental conditions on citrus photosynthesis. Knowledge of physiological responses of citrus trees to their surrounding environment is essential in order to improve crop production and plant development, both being consequences of appropriate horticultural management in citrus orchards. In this context, citrus photosynthesis is addressed as the primary source of carbon and energy for plant growth and development. The photosynthetic activity on both a daily and a seasonal scale is reviewed, taking into consideration the physiological aspects related to seasonal variation of photochemical and biochemical activities, stomatal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrate; Citrus; Chlorophyll fluorescence; Gas exchange; Seasonality.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400009

Chemical composition of corn and sorghum grains cultivated in Oxisol with different application methods and doses of zinc
Provedor de dados: 118
Autores: Puga,Aline P; de Mello Prado,Renato; Mattiuz,Ben-Hur; Wyllyam do Vale,Diego; Fonseca,Ivana M.
In general, tropical soils present low concentrations of zinc (Zn), and the deficiency of Zn is recognized as a world nutritional problem for cereal production and human beings. Therefore, the main goal of this study was to assess the effects of different methods of Zn application on the quality of corn and sorghum grains grown in Oxisol. Two experiments were set up in the experimental area of UNESP (campus of Jaboticabal, Brazil). The following nine treatments were applied: three doses of Zn by banded application (seed furrows), three doses of Zn by incorporation into soil (0-20 cm depth), foliar application, seed application, and control (no Zn applied). The treatments were arranged in randomized blocks with four replicates. The contents of Zn,...
Tipo: Journal article
Palavras-chave: Carbohydrate; Protein; Sorghum bicolor; Zea mays L; Zn.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100008