While abscisic acid (ABA) is known as a hormone produced by plants through the carotenoid pathway, a small number of phytopathogenic fungi are also able to produce this sesquiterpene but they use a distinct pathway that starts with the cyclization of farnesyl diphosphate (FPP) into 2Z,4E-伪-...
Inomata M, Hirai N, Yoshida R, Ohigashi H (2004a) Biosynthesis of abscisic acid by the direct pathway via ionylideneethane in a fungus, Cercospora cruenta . Biosci Biotechnol Biochem 68:2571–2580Inomata M, Hirai N, Yoshida R, Ohigashi H (2004b) Biosynthesis of abscisic acid by the ...
fungi, Mycosphaerella cruenta, biosynthesis, abscisic acid(R)-[2-14C]-Mevalonic acid (MVA) lactone was incorporated into (-)-4-hydroxy-y-ionylideneacetic acid (4-hydroxy-y-acid), which was first isolated from the culture broth of Cercospora cruenta. 4-Hydroxy--acid was then metabolized to...
Biosynthesis of abscisic acid in Cercospora pini-densiflorae Out of 12 families of phytopathogenic fungi examined, four strains produced abscisic acid, the 1′,4′- trans-diol of abscisic acid, or both. Cercospora pi... M Okamoto,N Hirai,K Koshimizu - 《Phytochemistry》 被引量: 47发表:...
Mutant plants deficient in the phytohormone abscisic acid (ABA) are typically unable to control their stomatal behavior appropriately in response to water stress, leading to a “wilty” phenotype. In plant species showing strong seed dormancy, ABA deficiency of the seed results in a second clearly...
Abscisic acid; biosynthesis; physiology; xanthoxin Abscisic acid (ABA) has been postulated to modulate several aspects of plant growth and development. While it is tempting to attribute changes in growth and development to a specific hormone such as ABA, the reality is that these processes are co...
percentage, while the activity of antioxidant enzymes improved significantly. Exogenous EBR application possibly contributes to activating the nitric oxide, H2O2, and ABA-dependent pathways, enhancing the biosynthesis of abscisic acid and auxin, and regulating the signal transduction pathways, which raises ...
Abscisic acid regulation of gene expression during water- de cit stress in the era of the The Arabidopsis thaliana homeodomain leucine-zipper gene ATHB7 , which is active specifically under water deficit conditions, is proposed to act as a nega... EA Bray 被引量: 472发表: 2002年 A rapid ...
Abscisic acid (ABA) has been shown to mitigate the deleterious effects of abiotic stresses and to regulate plant growth and development. Salinity is one of the important abiotic stresses affecting plant cell metabolism and physiology, which causes seriou
SummaryWhen first discovered in 1963, abscisic acid (ABA) was called abscisinII because it promotes abscission. Later, researchers found that ABA accelerates abscission via ethylene. In Arabidopsis, previous studies have shown that high concentrations of ABA inhibit root growth through ethylene signaling...