Consulta: subjectFacets:"Plant anatomy"
Registros recuperados: 27
Data/hora: 10/06/2024 14:03:01

Estrutura populacional e o potencial de uso de Guadua cf. superba na região do Alto Acre.
Provedor de dados: 14
Autores: MIRANDA, E. M. de; AFONSO, D. G.; PONTES, S. M. de A.; SOUZA, J. C. N. de; LIMA, D. do N.; FREITAS JÚNIOR, J. L. de.
O objetivo deste estudo foi conhecer a estrutura populacional e indicar usos para Guadua cf. superba, com base nas propriedades anatômicas do colmo (haste com nós e entrenós bem visíveis). A população estudada está localizada na Reserva Extrativista Chico Mendes, no Acre. Foi realizado um levantamento amostral e demarcada uma parcela de 1ha, onde foi avaliada a estrutura da população e coletados segmentos de colmos para testar a resistência do material à deterioração natural e a esforços físicos-mecânicos. Os resultados mostraram uma elevada densidade e dominância do bambu e equilíbrio entre o número de colmos jovens e maduros. As provas realizadas denotaram a baixa resistência do material ao ataque de agentes biológicos e à abrasão, porém com grande...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Guadua cf superba; RESEX Chico Mendes; Brasiléia (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Bambués; Anatomía de la planta; Culmo; Especies nativas; Propiedades fisicoquímicas; Resistencia (mecánica); Sondeo de la Población Actual.; Bambu; Espécie nativa; Levantamento populacional; Anatomia vegetal; Colmo; Resistência; Propriedade físico-química; Bamboos; Indigenous species; Current population survey; Culms; Plant anatomy; Strength (mechanics); Physicochemical properties.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1081857

Morfologia de sementes, plantulas jovens de Enterolobium gummiferum (Mart.) acb. (Leguminosae).
Provedor de dados: 14
Autores: ROCHA, H. M. de C.; SOUSA-SILVA, J. C.
bitstream/CPAC-2009/24166/1/p2002_53.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Plantulas; Enterolobium gummiferum; Tamboril do campo.; Cerrado; Morfologia Vegetal; Planta Tóxica; Semente.; Plant anatomy; Phytotoxicity; Seedlings; Seeds.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567475

Caracterização morfológica de acessos do gênero Stylosanthes no banco ativo de germoplasma da Embrapa Cerrados - coleção 1994/1995.
Provedor de dados: 14
Autores: KARIA, C. T.; ANDRADE, R. P. de; CHARCHAR, M. J. D'Á.; GOMES, A. C.
Resumo: A introdução de populações heterogêneas e a sua caracterização é o primeiro passo para um programa de seleção e/ou melhoramento genético de plantas. A heterogeneidade permite a seleção de indivíduos superiores que podem ser diretamente liberados como cultivares ou servir como fonte de genes em programas de melhoramento genético. A flora nativa da Região é extremamente rica em leguminosas, sendo, inclusive, centro de origem de diversas espécies que poderiam ser usadas como forrageiras. Dentre as leguminosas nativas, destaca-se o gênero Stylosanthes que possui diversas espécies, amplamente, distribuídas pelo continente americano, apresentando grande variação de formas e tipos, resultante da evolução de populações submetidas às diferentes condições de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Stilosante; Feed legumes.; Cerrado; Germoplasma; Leguminosa Forrageira; Melhoramento Genético Vegetal; Morfologia Vegetal; Variação Genética.; Germplasm; Genetic variation; Plant anatomy; Plant breeding.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567951

Wood characteristics of Ceiba pentandra cultivated in upland and floodplain ecosystem.
Provedor de dados: 14
Autores: AZEVEDO, C. P. de; DUNISCH, O.; FRANCA, M. B.; NEVES, A. C. C. das; BAUCH, J.; POLACZEK, S.; VAN LEEUWEN, J.
The present work was carried out with tree sumauma's tree (nativa, adult and young trees) cultivated in floodplains (varzeas) and uplands (terra firme) ecosystem, having as objective, obtain information about growth patterns of the species and to correlate them into different environmental conditions (floodplain and upland) as well as investigate anatomic and physical parameters of the wood, purposing correlate the wood quality of adult native trees, with young tree's wood, cultivated in floodplain and upland.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Sumauma; Brasil; Amazonas; Manaus; Anatomia; Ceiba Pentandra; Madeira; Paineira; Várzea; Plant anatomy; Wood.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669646

Morfologia de frutos, sementes, plantulas e plantas jovens de Plathymenia reticulata Benth. (Leguminosae).
Provedor de dados: 14
Autores: ROCHA, H. M. de C.; SOUSA-SILVA, J. C.
bitstream/CPAC-2009/24165/1/p2002_52.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Plathymenia reticulata; Fruit.; Cerrado; Fruto; Morfologia Vegetal; Plântula; Semente.; Plant anatomy; Seedlings; Seeds.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567474

Parametros cineticos de absorcao de fosforo e caracteristicas morfologicas do sistema radicular de variedades de milho.
Provedor de dados: 14
Autores: MACHADO, C. T. de T.; FURLANI, A. M. C.
bitstream/CPAC-2009/24168/1/p2002_55.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Maize.; Fósforo; Fisiologia Vegetal; Morfologia Vegetal; Milho; Nutrição Vegetal; Variedade; Zea Mays.; Plant nutrition; Plant physiology; Phosphorus; Plant anatomy; Varieties.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567477

Anatomic compatibility of pear and quince trees grafted on Pyrus calleryana and Chaenomeles sinensis rootstocks
Provedor de dados: 86
Autores: Melo,Evaldo Tadeu de; Pio,Rafael; Balbi,Rodrigo Vieira; Ferreira,Cassiana Alves; Mori,Fábio Akira.
Abstract: The objective of this work was to evaluate the graft growth and the anatomical characterization of pear (Pyrus communis x P. pyrifolia) and quince (Cydonia oblonga) cultivars grafted on Pyrus calleryana and Chaenomeles sinensis rootstocks. Sprouted graft percentages at 60 days and the length and diameter of the graft sproutings at 120 days were evaluated. Stem cuttings from the grafting region were performed in transversal and longitudinal sections, and the secondary xylem was separated for tissue comparison. The pear trees showed good development on P.calleryana rootstock, and the anatomical sections showed that the vascular tissues were connected, which did not occur when the trees were grafted on C.sinensis, in which the grafts sprouted, but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cydonia oblonga; Pyrus communis x P. pyrifolia; Intergeneric grafting; Interspecific grafting; Plant anatomy; Vascular connection.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000877

Occurrence and structure of extrafloral nectariesin Pterodon pubescens Benth. and Pterodon polygalaeflorus Benth.
Provedor de dados: 86
Autores: Paiva,Élder Antônio Sousa e; Morais,Helena Castanheira de; Isaias,Rosy Mary dos Santos; Rocha,Dulce Maria Sucena da; Oliveira,Paulo Eugênio.
Extrafloral nectaries (EFNs) are structurally variable and widely spread among the angiosperms. The occurrence of EFNs in leaves of Pterodon polygalaeflorus Benth. and Pterodon pubescens Benth. (Fabaceae: Papilionoideae) were detected in adult specimens, at the time of production of new buds and flowers. The goals of the present study are to register the occurrence of the EFNs in P. pubescens and P. polygalaeflorus, and provide comparative data on the anatomical structures. The EFNs occur in the rachis and are located under the insertion of each petiolule. Each nectary consists of a small elevation whose apical portion is deeply invaginated, resulting in a depression (secretory pole), a common characteristic of both species. Unicellular, nonglandular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nectaries; Plant anatomy; Plant secretions; Nectar; Plant protection; Herbivores; Plant animal relations.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000200002

Morphological characteristics and proportion of leaf blade tissues of elephant grass clones under sheep grazing
Provedor de dados: 86
Autores: Viana,Bruno Leal; Mello,Alexandre Carneiro Leão de; Guim,Adriana; Lira,Mário de Andrade; Dubeux Júnior,José Carlos Batista; Santos,Mércia Virgínia Ferreira dos; Cunha,Márcio Vieira da.
Abstract: The objective of this work was to characterize morphologically elephant grass (Pennisetum purpureum) genotypes and to estimate their proportions of leaf blade tissues under grazing. Two tall varieties (Elephant B and IRI-381) and three short ones (Mott, Taiwan A-146 2.37, and Taiwan A-146 2.114) were evaluated under intermittent sheep grazing as to the following morphological characteristics: plant height, internode length, and leaf blade/culm ratio. Moreover, the proportions of the following leaf blade tissues were estimated: sclerenchyma, adaxial and abaxial epidermis, bulliform cells, vascular bundles, phloem, vascular sheath, xylem, and mesophyll. The short varieties were 28.6% shorter than the tall ones and showed higher leaf blade/culm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pennisetum purpureum; Dwarf elephant grass; Pasture management; Plant anatomy; Small ruminants.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001101268

Anatomical analysis of peach palm (Bactris gasipaes) leaves cultivated in vitro, ex vitro and in vivo
Provedor de dados: 88
Autores: Batagin-Piotto,Katherine Derlene; Almeida,Cristina Vieira de; Piotto,Fernando Angelo; Almeida,Marcílio de.
The present work characterized and compared the anatomical structures of the leaves of Bactris gasipaes (Arecaceae) plants grown under different cultivation conditions (in vitro, ex vitro and in vivo) with the goal of identifying the origins of the difficulties encountered in acclimatizing micro-plants. The Quant program was used to determine leaf tissue thicknesses and areas, and histochemical tests were performed on leaf sections and analyzed using light microscopy. Stomatal and trichome densities were determined using the epidermal impression method and by scanning electronic microscopy. Our results indicated that there were no discernible alterations of the anatomical characteristics of the leaves of micro-plants cultivated under differing conditions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acclimatization; Adaptation; Plant anatomy.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000100008

การพัฒนารอยประสานของการติดตาพลับ
Provedor de dados: 106
Autores: Kallaya Kongsakulvatanasuk.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Persimmon; Diospyros; Fuyu variety; Taiwan variety; Angkang variety; Mae-hae variety; Doipui variety; Plant anatomy; Cytology; Plant propagation; Grafting; Budding; Graft union; Chiangmai province; พลับ; พันธุ์ฟูยุ; พันธุ์ไต้หวัน; พันธุ์อ่างขาง; พันธุ์แม่แฮ; พันธุ์ดอยปุย; ต้นตอพันธุ์; ลักษณะทางกายวิภาค; การทดสอบพันธุ์; การตัดต่อกิ่ง; การติดตา; การพัฒนารอยประสาน; กา่รสร้างแคลลัส; จ.เชียงใหม่.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5503

Taxonomic relevance of leaf anatomy in Banisteriopsis C.B. Rob. (Malpighiaceae)
Provedor de dados: 39
Autores: Araújo,Josiane Silva; Almeida,Rafael Felipe de; Meira,Renata Maria Strozi Alves.
ABSTRACT We describe the leaf anatomy of 42 of the 60 species of the genus Banisteriopsis, one of the largest and most diverse genera of Malpighiaceae in the Cerrado domain. Our aim was to identify anatomical leaf characters useful for the taxonomy and systematics of this morphological diverse genus. Expanded leaves from herbarium specimens were rehydrated and processed according to usual anatomical methods for analysis under light microscopy. All characters were compared using the Unweighted Pair Group Method with Arithmetic Mean algorithm and expressed in dendrograms. The most useful leaf anatomical characters were petiole contour, presence/absence of vascular bundles in the petiole, the position of the vascular bundles in the petiole, shape of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf glands; Malpighiales; Multivariate analysis; Plant anatomy; Stigmaphylloid clade.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100214

Appendicular origin and structure of the spur of Vochysiaceae flowers
Provedor de dados: 39
Autores: Carmo-Oliveira,Renata; Oliveira,Paulo E.; Morretes,Berta Lange de.
ABSTRACT Floral nectaries are linked with animal pollinators and floral specialization, characterizing some plant groups, such as the mostly Neotropical Vochysiaceae. The phylogeny of these plants has been revised based on molecular data, but their conspicuous spurs were mostly neglected. The appendicular or receptacular origin of these spurs has been discussed but without ontogenetic or anatomical study, and the association between spur structure and pollination systems was never assessed. We studied the spurs of species of four genera of Cerrado Vochysiaceae (tribe Vochysieae), documenting their vascularization and comparing their structure to previously described pollination systems. The spur structure was roughly similar among species, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callisthene; Nectar; Nectarostomata; Plant anatomy; Qualea; Salvertia; Vochysia.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300433

Simultaneous dehydration and infiltration with (2-hydroxyethyl)-methacrylate (HEMA) for lipid preservation in plant tissues
Provedor de dados: 39
Autores: Oliveira,João Marcelo Santos de.
Although this study aims to develop an improved method for the preservation of reserve lipids in plant tissues for different uses in plant anatomy, it mostly aims to develop an improved method for the identification of lipid reserves where synthesis or storage occurs. The proposed procedures entail only the utilization of (2-hydroxyethyl)-methacrylate (HEMA) as a dehydration agent. One of the procedures is based on the gradual exchange of aqueous HEMA solutions with increasing concentrations. In another procedure, dehydration and infiltration are induced by the presence of silica gel around a modified microcentrifuge tube containing the aqueous HEMA solution with the plant tissues, thus allowing efficient lipid preservation. Both procedures resulted in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryo; Endosperm; HEMA; Lipids; Plant anatomy; Plant microtechnique.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200207

Morphology and anatomy of leaf miners in two species of Commelinaceae (Commelina diffusa Burm. f. and Floscopa glabrata (Kunth) Hassk)
Provedor de dados: 39
Autores: Elb,Paula Maria; Melo-de-Pinna,Gladys Flávia; Menezes,Nanuza Luiza de.
In specialized literature, reports on anatomy of miners in host plants are few in number. These agents trigger excavations, or paths, by consumption of plant inner tissues by larvae of several insects. The aim of this work was to investigate leaf miner occurrence in Commelina diffusa (a cosmopolitan plant) and Floscopa glabrata (an amphibious plant) using anatomical techniques. The place where the plants were collected is subjected to seasonal floods, consequently both the species were exposed to the same weather conditions and seasonal floods. This study showed that members of Agromyzidae and Chironomidae families, which are Diptera endophytophagous larvae types, were responsible for the tunnels. Moreover, in Commelina diffusa Agromyzidae larvae were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant anatomy; Miners; Amphibious plant; Chironomidae; Agromyzidae.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000100030

How to construct and use a simple device to prevent the formation of precipitates when using Sudan Black B for histology
Provedor de dados: 39
Autores: Oliveira,João Marcelo Santos de.
The present work aims to demonstrate the stages of fabrication and use of a simple device to avoid the formation or fixation of precipitates from Sudan Black B solution on tissues. The device consists of four coverslip fragments attached to a histology slide, which serve as points of support for the histological slide under analysis. To work properly, the histology slide with the sections should be placed with the sections facing downwards the device. A small space between the device and the histology slide is thereby created by the height of the coverslip fragments. When Sudan Black B is applied, the solution is maintained within the edges of the device and evaporation is minimized by the small space, thereby reducing the consequent formation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Histochemical tests; Histology; Lipids; Plant anatomy; Sudan Black B.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400489

Comparative leaf anatomy and morphology of some Brazilian species of Crotalaria L. (Leguminosae: Papilionoideae: Crotalarieae)
Provedor de dados: 39
Autores: Devecchi,Marcelo Fernando; Pirani,José Rubens; Melo-de-Pinna,Gladys Flávia de Albuquerque.
Anatomical characters often provide strong taxonomic evidence and many times help define species whose morphological limits are in question. This study aimed to survey characters of the leaf anatomy of 16 species of Crotalaria L. occurring mostly in the cerrado (savanna) of central Brazil and in areas of restinga (coastal woodland, or sandy forest) along the coast of the country, in order to improve the current taxonomic circumscription of sections and species. Leaf samples were collected in the field and obtained from herbarium specimens. Standard techniques in plant anatomy were employed, including analyses under light and scanning electron microscopy. Many of the characters analyzed are relatively uniform, but some are diagnostic for species. At the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalarieae; Plant anatomy; Papilionoideae; Taxonomy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400013

The taxonomic value of leaf anatomy for species Byrsonima: a difficult genus of Malpighiaceae Juss.
Provedor de dados: 39
Autores: Santos,João Victor da Costa; Oliveira,Maria de Fátima Vasconcelos de; Santos Filho,Francisco Soares; Silva,Leyde Nayane Nunes dos Santos; Araújo,Josiane Silva.
ABSTRACT We studied the leaf anatomy of 15 species of Byrsonima and a single species of Diacidia as an outgroup to test the relevance of leaf anatomical characters to the complicated taxonomy of this genus. We present complete anatomical descriptions for petioles and leaf blades, together with an anatomical matrix, dendrogram and an identification key for the studied taxa. The most informative characters were the presence of stomatal crest, trichome type, epidermis type, contour and conformation of the vascular system in the diaphragm and medium petiole and number of accessory bundles. The aforementioned characters revealed that the anatomy of the petioles in the genus differs from that of petioles in the outgroup taxon with regard to vascular system...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Murici; Plant anatomy; Similarity analysis; Taxonomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300570

Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
Provedor de dados: 3
Autores: Teixeira, Thaiz Rodrigues; Pádua, Marlúcia Souza; Castro, Ana Hortência Fonsêca.
A study on the leaf anatomy of Cordiera sessilis (Rubiaceae), a native medicinal shrub from Brazilian Cerrado was carried out to contribute for species identification and provide support for future biochemical studies and medicinal application. Leaves were collected, fixed and processed by usual techniques, and studied by light and electron microscopy. Quantitative analyzes of stomata and trichomes were performed. The leaves showed typical characteristics of Rubiaceae family, like hypostomatic leaves, paracytic stomata, dorsiventral mesophyll and collateral bundles. Two types of vascular patterns were identified in the petiole: in distal part, the vascular system is arranged cylindrically surrounded by sclerenchyma sheath and in proximal part, the vascular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.00.00-0 e 2.03.02.03-7 Marmelinho; Plant anatomy; Histochemical tests; Cerrado; Medicinal plant Botânica “Marmelinho”; Plant anatomy; Histochemical tests; Cerrado; Medicinal plant.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902

Adaptive leaf anatomical characteristics of Brachiaria ruziziensis genotypes (Poaceae) in different environments - doi: 10.4025/actascibiolsci.v35i4.18265
Provedor de dados: 3
Autores: Santos, Fabíola Carvalho; Universidade Federal de Lavras; Techio, Vânia Helena; Universidade Federal de Lavras; Freitas, Aline Silva; Universidade Federal de Lavras; Castro, Evaristo Mauro de; Universidade Federal de Lavras; Davide, Lisete Chamma; Universidade Federal de Lavras; Sobrinho, Fausto Souza; Empresa Brasileira de Pesquisa Agropecuária.
Studies on morphological plasticity are extremely important to plant breeding seeking to optimize genotype interactions with their environments. The present study evaluated 38 genotypes of Brachiaria ruziziensis cultivated during the rainy (October to March) and dry (April to September) seasons and examined variations in their anatomical characteristics. Fully expanded leaves were collected and fixed in FAA70 (formaldehyde: acetic acid: ethyl alcohol) for 72h and subsequently stored in 70% alcohol. Median sections of leaf blades were examined and evaluated according to traditional plant anatomical procedures. Genotypes 15, 27, 40, 53, and 90 demonstrated interactions with the environment in five of the anatomical characteristics evaluated; genotypes 1 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 morphological plasticity; Plant anatomy; Plant breeding; Forage Anatomia vegetal.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18265

Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits
Provedor de dados: 42
Autores: PEREIRA,FABRICIO J.; CASTRO,EVARISTO M. DE; OLIVEIRA,CYNTHIA DE; PIRES,MARINÊS F.; PEREIRA,MARCIO P.; RAMOS,SILVIO J.; FAQUIN,VALDEMAR.
This study aimed at verifying the lead tolerance of water hyacinth and at looking at consequent anatomical and physiological modifications. Water hyacinth plants were grown on nutrient solutions with five different lead concentrations: 0.00, 0.50, 1.00, 2.00 and 4.00 mg L–1 by 20 days. Photosynthesis, transpiration, stomatal conductance and the Ci/Ca rate were measured at the end of 15 days of experiment. At the end of the experiment, the anatomical modifications in the roots and leaves, and the activity of antioxidant system enzymes, were evaluated. Photosynthetic and Ci/Ca rates were both increased under all lead treatments. Leaf anatomy did not exhibit any evidence of toxicity effects, but showed modifications of the stomata and in the thickness of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Ecophysiology; Plant anatomy; Macrophytes.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301423

Butia capitata (Mart.) Becc. lamina anatomy as a tool for taxonomic distinction from B. odorata (Barb. Rodr.) Noblick comb. nov (Arecaceae)
Provedor de dados: 42
Autores: SANT'ANNA-SANTOS,BRUNO F.; CARVALHO JÚNIOR,WELLINGTON G.O.; AMARAL,VANESSA B.
The distinction between Butia capitata and B. odorata is based only on a few morphological characteristics, therefore there is a need for additional studies for supporting the separation of the species. As lamina anatomy characteristics are relevant in circumscribing Arecaceae taxa, this work aimed to describe B. capitata lamina anatomy and compare it with B. odorata. Samples from the middle portion of the pinnae were collected and processed in accordance with standard plant anatomy techniques. The epidermis is uniseriate and composed of a thick cuticle and epicuticular waxes into like hooked filaments. The subsidiary cells that arch over the guard cells are located at the hypodermis. The mesophyll is isobilateral and compact. The vascular bundles are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant anatomy; Palms; Raphides; Taxonomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100071

Morpho-physiological changes in Billbergia zebrina due to the use of silicates in vitro
Provedor de dados: 42
Autores: MARTINS,ADALVAN D.; MARTINS,JOÃO PAULO R.; BATISTA,LUCAS A.; DIAS,GABRIELEN M.G.; ALMEIDA,MIRIELLE O.; PASQUAL,MOACIR; SANTOS,HELOÍSA O. DOS.
Abstract The use of silicon in Billbergia zebrina cultivation in vitro is an alternative for optimizing micropropagation of this important ornamental plant species. The objective of the present study was to evaluate the growth and anatomical and physiological alterations in Billbergia zebrina (Herbert) Lindley plants as a function of different sources and concentrations of silicon during in vitro cultivation and acclimatization. The experimental design was completely randomized, with a double factorial arrangement and an additional control treatment (2 x 3 + 1). The first factor was relative to calcium silicate and sodium silicate added to the Murashige &amp; Skoog culture medium; the second factor was related to its concentrations, 0.5, 1.0, and 2.0 mg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromeliad; Micropropagation; Plant anatomy; Plant physiology; Silicon.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703449

Effects of coloured shade netting on the vegetative development and leaf structure of Ocimum selloi
Provedor de dados: 53
Autores: Costa,Larissa Corrêa do Bomfim; Pinto,José Eduardo Brasil Pereira; Castro,Evaristo Mauro de; Alves,Eduardo; Bertolucci,Suzan Kelly Vilela; Rosal,Louise Ferreira.
The objective of this work was to investigate the effects of shading on the growth and development of the medicinal plant Ocimum selloi after 90 days. Seedlings were maintained under three different light treatments, namely, full sunlight vs coloured shade treatments provided by red and blue ChromatiNet® 50% coloured netting. After 90 days of cultivation, height, stem diameter, petiole length, total leaf area (TLA), specific leaf area (SLA), leaf area ratio (LAR) and leaf weight ratio (LWR) of each plant hare measured. Microscopic examination of leaf sections were conducted in order to determine the leaf blade thicknesses, together with the size and density of the stomata, the number and area of chloroplasts, and chloroplast starch grains present in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Light quality and intensity; Plastic coloured netting; Plant anatomy; Leaf morphology and structure.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000200012

The role of phytochromes in cadmium stress responses in tomato
Provedor de dados: 53
Autores: Gaion,Lucas Aparecido; Lorevice,Paulo Guilherme; Monteiro,Carolina Cristina; Gavassi,Marina Alves; D’Amico-Damião,Victor; Gratão,Priscila Lupino; Gasparino,Eduardo Custódio; Carvalho,Rogério Falleiros.
ABSTRACT It is well known that phytochromes mediate a wide range of photomorphogenic processes in plants. In addition, many studies have demonstrated the involvement of phytochromes as part of abiotic stress signaling responses. However, little is known about cadmium (Cd) stress regulation by phytochromes. Thus, in this study, we used the phyA (far red-insensitive; fri), phyB1 (temporary redinsensitive; tri) and phyB2 (phyB2) tomato (Solanum lycopersicum L.) mutants to investigate the roles of these three phytochromes on Cd stress responses. The plants were grown over a 21-d period in the presence of Cd. We evaluated plant growth, Cd and chlorophyll content and anatomical changes in the leaves. The results indicated that all genotypes were affected by Cd...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic stress; Heavy metal; Mutants; Plant anatomy; Solanum lycopersicum. L.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100013

Working Optimally with Serial Sections in Glycol Methacrylate Resin
Provedor de dados: 52
Autores: Leitão,Carlos André Espolador.
ABSTRACT The present work presents an optimized form for distributing serial sections in a glycol methacrylate slide set. This consists of filling the first row with sections from each slide, thus proceeding in the same way with the other rows. Therefore each slide will contain sections of three distinct sample segments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytology; Histology; Historesin; Microscopy; Plant anatomy; Technique.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100416

An inexpensive alternative equipment for the plant material embedding in the paraffin under the vacuum
Provedor de dados: 52
Autores: Leitão,Carlos André Espolador; Cortelazzo,Angelo Luiz.
The present work describes an equipment constructed using inexpensive material for embedding the plant material in the paraffin under the vacuum, using an oven and a vacuum pump. The equipment was tested using the samples of Rodriguezia venusta (Orchidaceae) buds embedded in paraffin, where half of the samples were submitted to the vacuum by the equipment during the embedding. The material was sectioned with a rotary microtome, obtaining full series of quality sections. The control was hard to section with the microtome, obtaining damaged sections due the air bubbles, making the ribbon formation difficult. These results proved the effectiveness of the equipment, making it a practical, inexpensive and more portable solution for newly established laboratories.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embedding; Paraffin method; Plant anatomy; Technique in microscopy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500018