Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 14
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
An overall evaluation of the resistance (R) and pathogenesis-related (PR) superfamilies in soybean, as compared with Medicago and Arabidopsis Genet. Mol. Biol.
Wanderley-Nogueira,Ana C.; Belarmino,Luis C.; Soares-Cavalcanti,Nina da M.; Bezerra-Neto,João P.; Kido,Ederson A.; Pandolfi,Valesca; Abdelnoor,Ricardo V.; Binneck,Eliseu; Carazzole,Marcelo F.; Benko-Iseppon,Ana M..
Plants have the ability to recognize and respond to a multitude of pathogens, resulting in a massive reprogramming of the plant to activate defense responses including Resistance (R) and Pathogenesis-Related (PR) genes. Abiotic stresses can also activate PR genes and enhance pathogen resistance, representing valuable genes for breeding purposes. The present work offers an overview of soybean R and PR genes present in the GENOSOJA (Brazilian Soybean Genome Consortium) platform, regarding their structure, abundance, evolution and role in the plantpathogen metabolic pathway, as compared with Medicago and Arabidopsis. Searches revealed 3,065 R candidates (756 in Soybean, 1,142 in Medicago and 1,167 in Arabidopsis), and PR candidates matching to 1,261 sequences...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pathogen response; Biotic stress; Bioinformatics; Glycine max; Medicago truncatula.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200007
Imagem não selecionada

Imprime registro no formato completo
Comparative analysis of differentially expressed sequence tags of sweet orange and mandarin infected with Xylella fastidiosa Genet. Mol. Biol.
Souza,Alessandra A. de; Takita,Marco A.; Coletta-Filho,Helvécio D.; Campos,Magnólia A.; Teixeira,Juliana E.C.; Targon,Maria Luísa P.N.; Carlos,Eduardo F.; Ravasi,Juliano F.; Fischer,Carlos N.; Machado,Marcos A..
The Citrus ESTs Sequencing Project (CitEST) conducted at Centro APTA Citros Sylvio Moreira/IAC has identified and catalogued ESTs representing a set of citrus genes expressed under relevant stress responses, including diseases such as citrus variegated chlorosis (CVC), caused by Xylella fastidiosa. All sweet orange (Citrus sinensis L. Osb.) varieties are susceptible to X. fastidiosa. On the other hand, mandarins (C. reticulata Blanco) are considered tolerant or resistant to the disease, although the bacterium can be sporadically detected within the trees, but no disease symptoms or economic losses are observed. To study their genetic responses to the presence of X. fastidiosa, we have compared EST libraries of leaf tissue of sweet orange Pêra IAC (highly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ESTs; Citrus variegated chlorosis; Biotic stress; CitEST; Phytopathogen.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500024
Imagem não selecionada

Imprime registro no formato completo
Defense-related proteins involved in sugarcane responses to biotic stress Genet. Mol. Biol.
Souza,Thais P.; Dias,Renata O.; Silva-Filho,Marcio C..
Abstract Sugarcane is one of the most important agricultural crops in the world. However, pathogen infection and herbivore attack cause constant losses in yield. Plants respond to pathogen infection by inducing the expression of several protein types, such as glucanases, chitinases, thaumatins, peptidase inhibitors, defensins, catalases and glycoproteins. Proteins induced by pathogenesis are directly or indirectly involved in plant defense, leading to pathogen death or inducing other plant defense responses. Several of these proteins are induced in sugarcane by different pathogens or insects and have antifungal or insecticidal activity. In this review, defense-related proteins in sugarcane are described, with their putative mechanisms of action, pathogen...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defense-related protein; PR-protein; Biotic stress; Saccharum spp.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200360
Imagem não selecionada

Imprime registro no formato completo
Differential expression of genes identified from Poncirus trifoliata tissue inoculated with CTV through EST analysis and in silico hybridization Genet. Mol. Biol.
Cristofani-Yaly,Mariângela; Berger,Irving J.; Targon,Maria Luisa P.N.; Takita,Marco A.; Dorta,Sílvia de O.; Freitas-Astúa,Juliana; Souza,Alessandra A. de; Boscariol-Camargo,Raquel L.; Reis,Marcelo S.; Machado,Marcos A..
Citrus is the most important fruit crop in Brazil and Citrus tristeza virus (CTV) is considered one of the most important pathogens of citrus. Most citrus species and varieties are susceptible to CTV infection. However, Poncirus trifoliata, a close relative of citrus, is resistant to the virus. In order to better understand the responses of citrus plants to the infection of CTV, we constructed expressed sequence tag (EST) libraries with tissues collected from Poncirus trifoliata plants, inoculated or not with Citrus tristeza virus at 90 days after inoculation, grafted on Rangpur lime rootstocks. We generated 17,867 sequence tags from Poncirus trifoliata inoculated (8,926 reads) and not (8,941 reads) with a severe CTV isolate. A total of 2,782 TCs...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus; Disease resistance; Citrus tristeza virus; Biotic stress.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500025
Imagem não selecionada

Imprime registro no formato completo
Entangled effects of allelic and clonal (genotypic) richness in the resistance and resilience of experimental populations of the seagrass Zostera noltii to diatom invasion ArchiMer
Massa, Sonia I.; Paulino, Cristina M.; Serrao, Ester A.; Duarte, Carlos M.; Arnaud-haond, Sophie.
Background: The relationship between species diversity and components of ecosystem stability has been extensively studied, whilst the influence of the genetic component of biodiversity remains poorly understood. Here we manipulated both genotypic and allelic richness of the seagrass Zostera noltii, in order to explore their respective influences on the resistance of the experimental population to stress. Thus far intra-specific diversity was seldom taken into account in management plans, and restoration actions showed very low success. Information is therefore needed to understand the factors affecting resistance and resilience of populations. Results: Our results show a positive influence of both allelic and genotypic richness on the resistance of...
Tipo: Text Palavras-chave: Allelic richness; Genotypic richness; Resistance; Resilience; Zostera noltii; Biotic stress; Seagrass.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00166/27748/25946.pdf
Imagem não selecionada

Imprime registro no formato completo
Genetic dissimilarity for resistance to Mononychellus tanajoa (bondar) (Acari, Tetranychidae) among domesticated and wild Manihot species Agronomy
Boaventura, Verônica de Jesus; Ringenberg, Rudiney; Ledo, Carlos Alberto da Silva.
The aim of this study was to evaluate the genetic dissimilarity among wild and domesticated species of Manihot for resistance to cassava green mite during the insect life cycle. Nine accessions of wild Manihot species, M. esculenta ssp. flabellifolia, M. esculenta ssp. peruviana, and M. carthaginensis ssp. glaziovii, and two clones of M. esculenta (Cigana Preta and Sacaí) were evaluated under laboratory conditions at 25 ± 1°C, 70 ± 10% RH, and a 12-h photophase. Daily observations during the mite life cycle stages (larva-adult) were recorded. The data were subjected to an analysis of variance, a Scott-Knott test (5%), and Singh criterion, cluster, and principal component analyses. The larval-adult period ranged from 5.53 to 7.01 days: the longest period...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia/ Fitossanidade biology; Cassava; Biotic stress; Green mite. Fitossanidade.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19359
Imagem não selecionada

Imprime registro no formato completo
Germination Ecology of Ivy-Leaved Morning-Glory: an Invasive Weed in Soybean Fields, Iran Planta Daninha
SIAHMARGUEE,A.; GORGANI,M.; GHADERI-FAR,F.; ASGARPOUR,R..
ABSTRACT: Ivy-leaved morning-glory (Ipomoea hederacea Jacq.) is an exotic species that is becoming an increasing problem in soybean fields of Golestan province, Iran. Because little information is available on the biology of this weed species in Iran, experiments were conducted to investigate the effects of different factors on seed germination and emergence of Ivy-leaved morning-glory. Maximum germination occurred at constant temperature of 20 oC (82%) and alternating temperature of 15/25 oC (94%). Germination was reduced with increasing salinity and drought stresses. Sodium chloride concentration and osmotic potential that inhibited 50% maximum germination were -1.64 and -1.03 MPa, respectively. Acidity was a limiting factor for the germination, due to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biotic stress; Alternating temperatures; Exotic species; PH.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100227
Imagem não selecionada

Imprime registro no formato completo
Microorganisms for wheat improvement under biotic stress and dry climate CIGR Journal
Haggag-AFBSC, Wafaa Mohamed.
Wheat is the most important grain crop, a main sustenance for a third of the world population. Biotic stress by diseases represents a serious risk to wheat production particularly under dry condition. In this work the use of plant beneficial microorganisms as bio elicitors to improve the productivity of two common wheat varieties (i.e. Gemmiza 10 and Sakha 93) were achieved. The Bio elicitors used are Streptomyces griseus, Trichoderma hamatum, Rhodotorula  glutinis, Paenibacillus polymyxa, Bacillus subtilis, Pseudomonas putida, P. fluorescens reduced wheat diseases occurrence including rust, net blotches and powdery mildew in comparison with  regular elicitors, as methyl jasmonate (MJ), chitosan (CHI), ascorbic acid and putrescein grown in new reclaimed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yes Bio-elicitors; Biotic stress; Dry climate; Wheat.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5052
Imagem não selecionada

Imprime registro no formato completo
New biotechnological tools to accelerate scab-resistance trait transfer to apple Genet. Mol. Biol.
Cusin,Roberta; Revers,Luís Fernando; Maraschin,Felipe dos Santos.
Abstract Apple is a fruit crop cultivated worldwide. Apple orchards are exposed to a diverse set of environmental and biological factors that affect the productivity and sustainability of the culture. Many of the efforts and costs for apple production rely on reducing the incidence of fungal diseases, and one of the main diseases is apple scab caused by the fungus Venturia inaequalis. The economic impact of scab on apple productivity has guided many breeding programs to search for cultivars resistant to apple scab. Introgression from wild relatives has been successful to some extent, and genetic engineering for resistant cultivars has even been employed. This review presents the techniques used to the present time to obtain pathogen-resistant apple...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malus; Venturia inaequalis; Biotic stress; Transformation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200305
Imagem não selecionada

Imprime registro no formato completo
Oil palm fatal yellowing (FY), a disease with an elusive causal agent. Infoteca-e
BITTENCOURT, C. B.; LINS, P. de C.; BOARI, A. de J.; QUIRINO, B. F.; TEIXEIRA, W. G.; SOUZA JUNIOR, M. T..
Abstract: Fatal yellowing disease (FY) is a bud rot-type disease that severely affects oil palm plantations in Latin America. Since 1974, when it was first reported in Brazil, this disorder has been responsible for severe economic losses in the oil palm industry; and, for nearly 50 years, several studies have tried to identify its causal agent, without success. The etiological studies regarding FY in oil palm explored either biotic and abiotic stress scenarios, in a single or combined manner. Most recently, the hypothesis in favor of one biotic cause has lost some grounds to the abiotic one, mainly due to new insights regarding deficient aeration in the soil, which reduces the potential for oxy-reduction, causing changes in the ionic composition of the...
Tipo: Parte de livro Palavras-chave: Amarelecimento letal; Fatal yellowing; Dendê; Epidemiology; Palm oils; Abiotic stress; Biotic stress; Etiology; Elaeis; Tropical agriculture.
Ano: 2022 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135533
Imagem não selecionada

Imprime registro no formato completo
Perdas econômicas geradas por estresses bióticos e abióticos na produção brasileira de soja no período 2016-2020. Infoteca-e
HIRAKURI, M. H..
Tipo: Folhetos Palavras-chave: Economia Agrícola; Economia da Produção; Perda da Produção; Soja; Stress; Soybeans; Abiotic stress; Biotic stress.
Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131745
Imagem não selecionada

Imprime registro no formato completo
Respuesta antioxidante al tratamiento con ácido salicílico en plantas de papa infectadas con fitoplasma. Colegio de Postgraduados
Sánchez Rojo, Silvia.
Durante un ataque patogénico en las células vegetales ocurre sobreproducción de especies reactivas de oxígeno. Esto provoca estrés oxidativo y daño fisiológico. Las plantas toman ventaja de estas moléculas reactivas para desarrollar estrategias que conducen a la autoprotección contra el ataque patogénico. Los fitoplasmas son bacterias sin pared celular que habitan el floema de las plantas y disminuyen el rendimiento, la calidad de los tubérculos y el valor comercial de las cosechas, entre otros daños. El ácido salicílico (AS) activó la respuesta de defensa de plantas de papa contra el ataque del fitoplasma, redujo los síntomas de la infección, favoreció la translocación de fotosintetizados e incrementó la calidad de los tubérculos. El AS indujo efectos a...
Palavras-chave: Estrés biótico; Punta morada de la papa; Actividad antioxidante; Especies reactivas de oxígeno; Biotic stress; Potato purple top; Antioxidant activity; Oxygen reactive species; Maestría; Botánica.
Ano: 2010 URL: http://hdl.handle.net/10521/186
Imagem não selecionada

Imprime registro no formato completo
Respuesta antioxidante al tratamiento con ácido salicílico en plantas de papa infectadas con fitoplasma. Colegio de Postgraduados
Sánchez Rojo, Silvia.
Durante un ataque patogénico en las células vegetales ocurre sobreproducción de especies reactivas de oxígeno. Esto provoca estrés oxidativo y daño fisiológico. Las plantas toman ventaja de estas moléculas reactivas para desarrollar estrategias que conducen a la autoprotección contra el ataque patogénico. Los fitoplasmas son bacterias sin pared celular que habitan el floema de las plantas y disminuyen el rendimiento, la calidad de los tubérculos y el valor comercial de las cosechas, entre otros daños. El ácido salicílico (AS) activó la respuesta de defensa de plantas de papa contra el ataque del fitoplasma, redujo los síntomas de la infección, favoreció la translocación de fotosintetizados e incrementó la calidad de los tubérculos. El AS indujo efectos a...
Palavras-chave: Estrés biótico; Punta morada de la papa; Actividad antioxidante; Especies reactivas de oxígeno; Biotic stress; Potato purple top; Antioxidant activity; Oxygen reactive species; Maestría; Botánica.
Ano: 2010 URL: http://hdl.handle.net/10521/186
Imagem não selecionada

Imprime registro no formato completo
The use of sunflower transcription factors as biotechnological tools to improve yield and stress tolerance in crops Phyton
Chan,R.L.
Transcription factors (TFs) are proteins able to specifically recognize DNA sequences in the regulatory regions of their target genes. They bind these specific sequences, an event that leads to the activation or repression of whole signal transduction pathways. In plants about 1500 TFs were informatically identified; identification was mainly based in the presence of DNA-binding domains in the translated sequences. They were classified in families and subfamilies according to several features, including the conservation of the DNA binding domain, the genes structures and the functions they exert. Among transcription factors, several seem to be potential powerful biotechnological tools to improve crops via obtaining transgenic plants. Assigned purposes...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sunflower; Transcription factors; HD-Zip; Homeodomain; Leucine zipper; Abiotic stress; Biotic stress.
Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572009000100002
Registros recuperados: 14
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional