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3 hexenal/arabidopsis
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8 resultados
Molecular cloning and expression of Arabidopsis fatty acid hydroperoxide lyase.
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Fatty acid hydroperoxide lyase (HPOL), an enzyme of the octadecanoid pathway that forms carbon-6 aldehydes such as n-hexanal or (Z)-3-hexenal, was cloned from Arabidopsis thaliana as a full-length cDNA. The HPOL activity obtained by expressing the cDNA in Escherichia coli formed n-hexanal from
Identification of a Hexenal Reductase That Modulates the Composition of Green Leaf Volatiles.
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Green leaf volatiles (GLVs), including six-carbon (C6) aldehydes, alcohols, and esters, are formed when plant tissues are damaged. GLVs play roles in direct plant defense at wound sites, indirect plant defense via the attraction of herbivore predators, and plant-plant communication. GLV components
Volatile C6-aldehydes and Allo-ocimene activate defense genes and induce resistance against Botrytis cinerea in Arabidopsis thaliana.
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Green leafy volatiles or isoprenoids are produced after mechanical wounding or pathogen/herbivore attacks in higher plants. We monitored expression profiles of the genes involved in defense responses upon exposing Arabidopsis thaliana to the volatiles. Among the genes investigated, those known to be
Transcriptome analysis of Arabidopsis thaliana treated with green leaf volatiles: possible role of green leaf volatiles as self-made damage-associated molecular patterns.
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Green leaf volatiles (GLVs), which include C6 aldehydes, alcohols, and their esters, are emitted by damaged plants and are, therefore, thought to be involved in stress responses. However, the effects of GLVs on gene expression are not fully understood. Thus, the aim of the present study was to
Jasmonic acid and its precursor 12-oxophytodienoic acid control different aspects of constitutive and induced herbivore defenses in tomato.
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The jasmonate family of growth regulators includes the isoleucine (Ile) conjugate of jasmonic acid (JA-Ile) and its biosynthetic precursor 12-oxophytodienoic acid (OPDA) as signaling molecules. To assess the relative contribution of JA/JA-Ile and OPDA to insect resistance in tomato (Solanum
Molecular characterization of an Arabidopsis gene encoding hydroperoxide lyase, a cytochrome P-450 that is wound inducible.
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Hydroperoxide lyase (HPL) cleaves lipid hydroperoxides to produce volatile flavor molecules and also potential signal molecules. We have characterized a gene from Arabidopsis that is homologous to a recently cloned HPL from green pepper (Capsicum annuum). The deduced protein sequence indicates that
ETR1-, JAR1- and PAD2-dependent signaling pathways are involved in C6-aldehyde-induced defense responses of Arabidopsis.
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C6-aldehydes [(E)-2-hexenal and (Z)-3-hexenal] induce expression of defense genes, accumulation of antifungal substances, and resistance against Botrytis cinerea with Arabidopsis. In order to elucidate the signaling pathway mediating the defense responses induced by C6-aldehydes in Arabidopsis, we
Direct fungicidal activities of C6-aldehydes are important constituents for defense responses in Arabidopsis against Botrytis cinerea.
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C6-aldehydes, such as (Z)-3-hexenal, (E)-2-hexenal, and n-hexanal, are volatile compounds formed by hydroperoxide lyase (HPL) and found in most terrestrial plants. They are fungicidal and bactericidal compounds, and are also signaling compounds to induce defense responses in plants. Transgenic
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