Abscisic Acid
Mostrando 13-24 de 849 artigos, teses e dissertações.
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13. Auxinic herbicides, mechanisms of action, and weed resistance: A look into recent plant science advances
Auxin governs dynamic cellular processes involved at several stages of plant growth and development. In this review, we discuss the mechanisms employed by auxin in light of recent scientific advances, with a focus on synthetic auxins as herbicides and synthetic auxin resistance mechanisms. Two auxin receptors were reported. The plasma membrane receptor ABP1
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
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14. Molecular characterization of the Jatropha curcas JcR1MYB1 gene encoding a putative R1-MYB transcription factor
The cDNA encoding the R1-MYB transcription factor, designated as JcR1MYB1, was isolated from Jatropha curcas using rapid amplification of cDNA ends. JcR1MYB1 contains a 951 bp open reading frame that encodes 316 amino acids. The deduced JcR1MYB1 protein was predicted to possess the conserved, 56-amino acid-long DNA-binding domain, which consists of a single
Genet. Mol. Biol.. Publicado em: 2014-09
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15. Phenolic composition and antioxidant properties of Brazilian honeys
The antioxidant activities and polyphenolic levels of "assa peixe," "cambara," and "morrão de candeia" Brazilian honeys were investigated. Phenolic extracts of 11 honeys were evaluated spectrophotometrically to determine their total phenolic and flavonoid contents, and their antioxidant activities were measured using DPPH, ABTS, and FRAP assays. High-perfor
Quím. Nova. Publicado em: 2014-06
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16. Abscisic acid-mediated leaf phenolic compounds, plant growth and yield is strawberry under different salt stress regimes
The present research was conducted to evaluate the interaction effects of exogenous abscisic acid (ABA) and salt stress on phenolic compounds, growth and yield of two short day strawberry cvs "Queen Elisa" and "Kurdistan". Plants were subjected to control, gradual salt stress (up to 20 mmol L-1 over 5 weeks) and salinity shock (20 mmol L-1). ABA treatments i
Theor. Exp. Plant Physiol.. Publicado em: 2013-12
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17. Introduction of the rd29A: AtDREB2A CA gene into soybean (Glycine max L. Merril) and its molecular characterization in leaves and roots during dehydration
The loss of soybean yield to Brazilian producers because of a water deficit in the 2011-2012 season was 12.9%. To reduce such losses, molecular biology techniques, including plant transformation, can be used to insert genes of interest into conventional soybean cultivars to produce lines that are more tolerant to drought. The abscisic acid (ABA)-independent
Genet. Mol. Biol.. Publicado em: 2013
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18. Biological characterization of the toxic effects of extracts of liquid cultures of Leifsonia xyli subsp. xyli on the germination of lettuce seeds / Caracterização do efeito tóxico de extrato de culturas líquidas de Leifsonia xyli subsp. xyli na germinação de sementes de alface
Este estudo avaliou os efeitos de extratos de culturas líquidas de Leifsonia xyli subsp. xyli (Lxx) cultivada sob condições de estresse osmótico e na presença de inibidores da rota não-mevalonato (MEP/DOXP) de síntese de pigmentos isoprenóides, na germinação de sementes de alface. Também avaliou a relação entre o efeito tóxico dos extratos e a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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19. Sinalização da indução do metabolismo ácido das crassuláceas (CAM) por ácido abscísico e óxido nítrico em Guzmania monostachia (Bromeliaceae) / Abscisic acid and nitric oxide signaling on the induction of crassulacean acid metabolism in Guzmania monostachia (Bromeliaceae)
Guzmania monostachia é uma bromélia tanque epífita C3-CAM facultativa, constituindo-se em um modelo muito interessante para estudar a sinalização que ocorre na transição da fotossíntese C3 para CAM. Baseado em resultados obtidos pelo Laboratório de Fisiologia Vegetal do IBUSP, constatou-se que a mudança em questão se dá de forma diferente ao long
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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20. Indução do promotor GmNAC6 por elicitores de estresses e mapeamento de regiões reguladoras / Induction of the promoter GmNAC6 by elicitors of stress and mapping of regulatory regions
NAC domain-containing proteins are unique to plants and comprise a large gene family of transcriptional factors implicated in diverse aspects of plant development and stress responses. The GmNAC6 was recently identified as a downstream component of the ER (endoplasmic reticulum) stress- and osmotic stress-induced NRP (N-rich proteins)-mediated cell death sig
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2012
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21. The role of matrix effects on the quantification of abscisic acid and its metabolites in the leaves of Bauhinia variegata L. using liquid chromatography combined with tandem mass spectrometry
Phytohormone analysis using liquid chromatography combined with tandem mass spectrometry is a very important tool for studies involving plant metabolism; however, this analysis can be affected by matrix composition. Although it is necessary to understand this effect to produce reliable results, it has been widely neglected in analyses of plant hormones. Leaf
Braz. J. Plant Physiol.. Publicado em: 2012-09
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22. Efeito do Ãcido abscÃsico nas bombas de prÃtons vacuolares e enzimas antioxidantes em Vigna unguiculata (L.) Walp / Effect of abscisic acid in vacuolar proton pumps and antioxidant enzymes in Vigna unguiculata (L.) Walp
O Ãcido abscÃsico (ABA) à um fitohormÃnio que desempenha papÃis crÃticos na regulaÃÃo das respostas das plantas ao crescimento e desenvolvimento. O vacÃolo de plantas superiores à uma organela que ocupa a maior parte da cÃlula. A condiÃÃo de acidez à mantida por duas bombas de prÃtons distintas, V-ATPase e V-PPase. Sabe-se que estas bombas de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2011
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23. Analysis of the arabidopsis histidine kinase ATHK1 reveals a connection between vegetative osmotic stress sensing and seed maturation.
Studies using null and overexpressing mutants of the Arabidopsis water stress sensory protein ATHK1 reveal that this single protein helps to regulate abscisic acid levels both in vegetative plant tissues after osmotic stress and in maturing seeds.
The Plant Cell. Publicado em: 2011
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24. Análise da via de regulação gênica do miRNA156/SPL na brotação lateral e caracterização molecular do processo de emergência da gema axilar de cana de açucar / Analysis of the role(s) of the miRNA156/SPL pathway on branching/tillering and molecular characterization of sugarcane lateral bud outgrowth
Sugarcane is an economically important biofuel crop that recently has become a target for improvement of sustainable biomaterial production due to its high biomass productivity and built-in containment features. Therefore, studies aiming to improve the production of biomass per area are among the most important issues in sugarcane production. Plant biomass i
Publicado em: 2011