Mechanisms Of Drought Resistance
Mostrando 1-11 de 11 artigos, teses e dissertações.
-
1. Respostas fisiológicas de genótipos de fava (Phaseolus lunatus L.) submetidas ao estresse hídrico cultivadas no Estado do Ceará
Resumo Das espécies do gênero Phaseolus, a fava é a mais tolerante à seca se comparada com os feijões comuns. Apesar da sua importância, ela tem sido pouco estudada, necessitando de pesquisas aplicadas à cultura para maior compreensão dos mecanismos envolvidos na resposta ao déficit hídrico. Este estudo avalia a tolerância de quatro genótipos de
Rev. bras. meteorol.. Publicado em: 21/10/2019
-
2. Identification of SNPs in RNA-seq data of two cultivars of Glycine max (soybean) differing in drought resistance
The legume Glycine max (soybean) plays an important economic role in the international commodities market, with a world production of almost 260 million tons for the 2009/2010 harvest. The increase in drought events in the last decade has caused production losses in recent harvests. This fact compels us to understand the drought tolerance mechanisms in soybe
Genetics and Molecular Biology. Publicado em: 2012
-
3. Drought resistance in seedlings tree species of semideciduous tropical forest / Resistência à seca em plântulas de espécies arbóreas da floresta estacional semidecídua
The rainfall is high in tropical forests, but there is great variation in water availability to plants. On a local scale, this availability may vary depending on the location of individuals in gaps, their position in the landscape and soil composition. On a regional scale, variations related to the volume and distribution of rainfall, coupled with seasonal c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
-
4. Adaptacao do feijoeiro (Phaseolus vulgaris L.) a seca. I. Densidade e eficiencia radicular.
O estudo, realizado em area experimental do CNPAF-EMBRAPA, Santo Antonio de Goias, GO, examina a influencia da eficiencia radicular, em mm3 de agua absorvida/cm de raizes/dia, e a densidade linear radicular, em cm de raizes/cm3 de solo, na resistencia a seca, do feijoeiro. Os resultados visam fornecer subsidios aos programas de melhoramento genetico, que ger
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
-
5. Adaptacao do feijoeiro (Phaseolus vulgaris L.) a seca. II. Produtividade e componentes agronomicos.
O estudo realizado em area experimental do CNPAF-EMBRAPA, em Santo Antonio de Goias, GO. Nele enfocou-se o ajuste morfologico do feijoeiro a deficiencia hidrica e o efeito dessa deficiencia sobre a translocacao e o acumulo de carboidratos, a produtividade e seus componentes. Objetivou-se fornecer subsidio aos programas de melhoramento genetico dessa cultura,
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
-
6. Extracting samples of high diversity from thematic collections of large gene banks using a genetic-distance based approach.
Background Breeding programs are usually reluctant to evaluate and use germplasm accessions other than the elite materials belonging to their advanced populations. The concept of core collections has been proposed to facilitate the access of potential users to samples of small sizes, representative of the genetic variability contained within the gene pool of
BMC Plant Biology. Publicado em: 2011
-
7. AlteraÃÃes fisiolÃgicas induzidas por estresses abiÃticos em plantas jovens de pinhÃo-manso / PHYSIOLOGICAL CHANGES INDUCED BY ABIOTIC STRESSES IN PHYSIC NUT YOUNG PLANTS
In this work were studied diverse physiological mechanisms, as the osmotic adjustment, photosynthesis, including gas exchange and chlorophyll fluorescence parameters, as well the oxidative responses in physic nuts submitted to different abiotic stresses as: salinity, drought and high temperature. The first experiment aimed to study the effects of increase of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/10/2009
-
8. Estudo in silico de genes que codificam fatores de transcriÃÃo responsivos Ãseca, salinidade e congelamento nos genomas do eucalipto, cana e arroz
Abiotic stresses are the most responsable for causing changes in plant growth and development. The plants, in counterpart, make use of a variety of responses in order to maintain their metabolic and physiological processes. One of the main plants responses to environmental conditions alterations is the additional regulation of expression. Moreover, the biosy
Publicado em: 2007
-
9. Caracteristicas morfo-fisiologicas dofeijoeiro (Phaseolus vulgaris L.) relaci onadas com a resistencia a seca
The study was conducted at the National Pice and Bean Research Center (CNPAF-EMBRAPA) experimental station Goianira GO during the months of May to August in the year 1987 and 1988. The objectives of the experiments conducted were to evaluate drought resistance mechanisms in bean cultivar BAT 477 Carioca; and RAB 96 all promising for planting during dry perio
Publicado em: 1992
-
10. The Role of Annexin 1 in Drought Stress in Arabidopsis1[W]
Annexins act as targets of calcium signals in eukaryotic cells, and recent results suggest that they play an important role in plant stress responses. We found that in Arabidopsis (Arabidopsis thaliana), AnnAt1 (for annexin 1) mRNA levels were up-regulated in leaves by most of the stress treatments applied. Plants overexpressing AnnAt1 protein were more drou
American Society of Plant Biologists.
-
11. New Insights into the Mechanisms of Water-Stress-Induced Cavitation in Conifers
Cavitation resistance is a key parameter to understand tree drought tolerance but little is known about the mechanisms of air entry into xylem conduits. For conifers three mechanisms have been proposed: (1) a rupture of pit margo microfibrils, (2) a displacement of the pit torus from its normal sealing position over the pit aperture, and (3) a rupture of an
American Society of Plant Biologists.