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关键词:'P49805'
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Yue Zhu et al.
Journal of the American Chemical Society, 128(13), 4267-4276 (2006-03-30)
Two-photon excitation (2PE) of "caged" biomolecules represents a powerful method to investigate the temporal and spatial relevance of physiological function in real time and on living tissue, because the excitation volume can be restricted to 1 fL. Additionally, low-energy IR
Guillaume A Schoch et al.
Plant physiology, 130(2), 1022-1031 (2002-10-12)
The cinnamate (CA) 4-hydroxylase (C4H) is a cytochrome P450 that catalyzes the second step of the main phenylpropanoid pathway, leading to the synthesis of lignin, pigments, and many defense molecules. Salicylic acid (SA) is an essential trigger of plant disease
Guo-Wei Zhao et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 35(1), 53-56 (2012-06-28)
To investigate the bioactive constituents in the stem of Piper wallichii. Compounds were separated by column chromatography of silica gel, ODS-A and Sephadex LH-20. Their structures were elucidated based on spectral analysis. DPPH scavenging activity and AchE inhibitory activity were
J Chong et al.
Plant physiology, 125(1), 318-328 (2001-01-12)
Salicylic acid (SA) is a key endogenous component of local and systemic disease resistance in plants. In this study, we investigated the role of benzoic acid (BA) as precursor of SA biosynthesis in tobacco (Nicotiana tabacum cv Samsun NN) plants
Guilhem Reyt et al.
Current biology : CB, 30(20), 4103-4111 (2020-08-29)
Casparian strips (CSs) are cell wall modifications of vascular plants restricting extracellular free diffusion into and out of the vascular system [1]. This barrier plays a critical role in controlling the acquisition of nutrients and water necessary for normal plant
Ágnes Szatmári et al.
PloS one, 9(8), e102869-e102869 (2014-08-08)
Pattern Triggered Immunity (PTI) or Basal Resistance (BR) is a potent, symptomless form of plant resistance. Upon inoculation of a plant with non-pathogens or pathogenicity-mutant bacteria, the induced PTI will prevent bacterial proliferation. Developed PTI is also able to protect
R Ranga Rao et al.
Bioorganic & medicinal chemistry, 17(14), 5170-5175 (2009-06-12)
A bioassay-guided fractionation and chemical examination of antihyperglycemic root extract of Derris indica resulted in isolation and characterization of two new furanoflavanoids (1, 2) along with thirteen known compounds (3-15). Their structures were determined on the basis of extensive spectroscopic
Gisele Adriana Bubna et al.
Journal of plant physiology, 168(14), 1627-1633 (2011-04-15)
The allelopathic effect of caffeic acid was tested on root growth, phenylalanine ammonia-lyase (PAL) and peroxidase (POD) activities, hydrogen peroxide (H(2)O(2)) accumulation, lignin content and monomeric composition of soybean (Glycine max) roots. We found that exogenously applied caffeic acid inhibited
Debabrata Sircar et al.
Journal of plant physiology, 166(13), 1370-1380 (2009-04-04)
Biosynthesis of hydroxybenzoates even at enzymatic level is poorly understood. In this report, effect of feeding of putative biosynthetic precursors and pathway-specific enzyme inhibitors of early phenylpropanoid pathway on p-hydroxybenzoic acid accumulation in chitosan-elicited hairy roots of Daucus carota was
Eyal Shimoni et al.
Journal of biotechnology, 105(1-2), 61-70 (2003-09-27)
Propenylbenzenes are often used as starting materials in the chemical synthesis of aroma compounds and fine chemicals. In the present study, we demonstrate the ability of an Arthrobacter sp. to transform various structures of propenylbenzenes derived from essential oils to
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