Methyl Jasmonate
Mostrando 13-24 de 168 artigos, teses e dissertações.
-
13. Identification of coffee WRKY transcription factor genes and expression in resistance responses to pathogens.
In plants, WRKY proteins are a group of transcription factors existing as a gene superfamily that play important roles in regulation of defense response pathways. To assess the diversity of this protein family in coffee (Coffea spp.), data mining methods were used on a set of around 200,000 coffee expressed sequence tags. A total of 53 different putative WRK
TREE GENETICS & GENOMES. Publicado em: 2011
-
14. Identification of coffee WRKY transcription factor genes and expression in resistance responses to pathogens.
In plants, WRKY proteins are a group of transcription factors existing as a gene superfamily that play important roles in regulation of defense response pathways. To assess the diversity of this protein family in coffee (Coffea spp.), data mining methods were used on a set of around 200,000 coffee expressed sequence tags. A total of 53 different putative WRK
TREE GENETICS & GENOMES. Publicado em: 2011
-
15. Molecular cloning and expression profiling of a chalcone synthase gene from hairy root cultures of Scutellaria viscidula Bunge
A cDNA encoding chalcone synthase (CHS), the key enzyme in flavonoid biosynthesis, was isolated from hairy root cultures of Scutellaria viscidula Bunge by rapid amplification of cDNA ends (RACE). The full-length cDNA of S. viscidula CHS, designated as Svchs (GenBank accession no. EU386767), was 1649 bp with a 1170 bp open reading frame (ORF) that corresponde
Genetics and Molecular Biology. Publicado em: 23/04/2010
-
16. Effect of Methyl Jasmonate on antioxidative enzyme activities and on the contents of ROS and H2O2 in Ricinus communis leaves
Jasmonates are a class of plant hormones that mediate various aspects in gene and metabolic regulation, defense, stress responses, reproduction and, possibly, communication. Oxidative stress stimulates synthesis of antioxidant metabolites and enhances antioxidant enzyme activities that could protect plant tissues. The aim of this study was to verify the effe
Brazilian Journal of Plant Physiology. Publicado em: 2010
-
17. Induction of fruit tolerance to chilling injury: physiological and biochemical aspects / Indução de tolerância de frutos às injúrias de frio: aspectos fisiológicos e bioquímicos
Experiments were performed with the purpose to investigate physiological and biochemical responses associated to induction of fruit tolerance to chilling injury and the involvement of ethylene and antioxidant defense system in this process. Nanicão banana and Tahiti lime fruit were submitted to treatments to stimulate or to inhibit ethylene action and heat
Publicado em: 2010
-
18. Identificação e expressão de genes da biossíntese do jasmonato na interação entre Theobroma cacao e Moniliophthora perniciosa / Identification and expression of genes associated with jasmonate biosynthesis in the Theobroma cacao and Moniliophthora perniciosa interaction
Witches broom disease of cacao (Theobroma cacao L.), caused by the basidiomycete Moniliophthora perniciosa is an important disease and the use of resistant varieties is the only economic and environmental long-term solution. Plant hormones are essential in the signaling network involved in the response against a variety of biotic and abiotic stresses. It is
Publicado em: 2009
-
19. Caracterização dos componentes extracelulares produzidos em cultura de célula de Rubus fruticosus (amora-preta) durante resposta de hipersensibilidade / Characterization of the extracellular compounds released from Rubus fruticosus (blackberry) cell during a hypersensitive response.
The plant-pathogen interactions trigger a series of signals that are not yet completely understood. One of the mechanisms is the hypersensitive response (HR), which is characterized by cell death in the infection site in order to prevent pathogen proliferation. Our previous studies with different elicitors demonstrated the correlation between the formation o
Publicado em: 2009
-
20. Avaliação de técnicas alternativas para o manejo da antracnose da banana em pós-colheita
The banana is the second fruit more consumed in the world, being the fruit fresh holder of larger world market. Brazil, answers as second producing adult, using the varieties Silver and Pacovan in approximately 60% of area harvestd. However, several factors can cause losses in the production. In the powder-crop to the anthracnose, caused by Colletotrichum mu
Publicado em: 2009
-
21. Morphogenesis in vitro, phytochemical analysis and anatomical characterization of neem (Azadirachta indica A. Juss) / Morfogênese in vitro, análise fitoquímica e caracterização anatômica de nim (Azadirachta indica A. Juss)
The Azadirachta indica A. Juss species, popularly known as neem, belongs to the Meliaceae family, which has great potential for azadirachtin (AZA) production; however, neem has recalcitrant seeds, cross-pollination and variable content of AZA. Four experiments were conducted in order to understand the in vitro growth limiting factors of these plants and chan
Publicado em: 2009
-
22. Resistência de algodoeiro a murcha de fusário: métodos de obtenção de plântulas e inoculação ;avaliação de germoplasmas ; indução de resistência e caracterização da atividade enzimática
The cotton has been in the human history for ages; it is used to the confection of clothes and its subproducts are an important source of protein to the domestic animals. Because of its wide distribution in the Brazil, the ocurrence of disease has become more frequently. Among the diseases, great importance is given to the fusarium wilt of cotton (Fusarium o
Publicado em: 2008
-
23. study of the effects of hypersensitive response on cell wall in blackberry-black cell culture (Rubus fruticosus) / Estudo do efeito de respostas de hipersensibilidade sobre a parede celular em cultura de células de amora-preta (Rubus fruticosus)
Como os outros organismos, as plantas têm a habilidade de se defenderem através do reconhecimento de patógenos (resposta de hipersensibilidade - RH), causando a morte imediata das células no sítio primário da infecção, desta maneira oferecendo resistência ao seu crescimento. A RH é caracterizada pela necrose dos tecidos neste local, através de mui
Publicado em: 2007
-
24. Polifenoloxidase como fator de resistencia da soja a nematoides e na oxidação do palmito
Most of the studies on polyphenol oxidase (PPO) are concerned with its participation in the response of plants to insect attack and its importance in food quality. The first chapter of this thesis presents the study of PPO from roots of two soybean (Glycine max) varieties differing in their resistance to nematodes. The aim was to study the role of PPO at the
Publicado em: 2004