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cinnamic acid 4 hydroxylase/papillon-lefevre disease
Veza se sprema u međuspremnik
Page 1 od 18 rezultati
Phenylalanine ammonia-lyase and cinnamic acid 4-hydroxylase: Product repression of the level of enzyme activity in potato tuber discs.
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Exogenous supplies of phenylalanne, cinnamic acid and p-coumaric acid can inhibit the appearance of phenylalanine ammonia-lyase (PAL, E.C. 4.3.1.5) activity in potato tuber discs, and exogenous supplies of cinnamic acid and p-coumaric acid can inhibit the appearance of cinnamic acid 4-hydroxylase
Phenylalanine ammonia-lyase and cinnamic acid 4-hydroxylase: Characterisation of the concomitant changes in enzyme activities in illuminated potato tuber discs.
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Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) and cinnamic acid 4-hydroxylase (CA4H, EC 1.14.13.11) undergo concomitant increases in activity after a 2 h lag following disc preparation and illumination. The increases in PAL and CA4H activity can be inhibited by actinomycin-D, cordycepin and
Altering expression of cinnamic acid 4-hydroxylase in transgenic plants provides evidence for a feedback loop at the entry point into the phenylpropanoid pathway.
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Pharmacological evidence implicates trans-cinnamic acid as a feedback modulator of the expression and enzymatic activity of the first enzyme in the phenylpropanoid pathway, L-phenylalanine ammonia-lyase (PAL). To test this hypothesis independently of methods that utilize potentially non-specific
GABA enhances physio-biochemical metabolism and antioxidant capacity of germinated hulless barley under NaCl stress.
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The effects of exogenous γ-aminobutyric acid (GABA) on the endogenous GABA metabolism and antioxidant capacity of germinated hulless barley (Hordeum vulgare L.) under NaCl stress were investigated. The results showed that all of the GABA treatments could alleviate the growth inhibition and oxidative
[Effect of temperature on content of baicalin and expression of key enzyme genes in callus of Scutellaria baicalensis].
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The study is aimed to explore the effect of different temperature on the content of baicalin and gene expression in the growth of Scutellaria baicalensis. Four culture temperatures were used to establish the callus culture of S. baicalensis under dark conditions for 40 days and once every 5 days.
Phenylalanine ammonia lyase functions as a switch directly controlling the accumulation of calycosin and calycosin-7-O-beta-D-glucoside in Astragalus membranaceus var. mongholicus plants.
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Previously it had been shown that calycosin and calycosin-7-O-beta-D-glucoside (CGs) accumulate in whole plants, mainly in leaves, of Astragalus membranaceus Bge. var. mongholicus (Bge.) Hsiao (A. mongholicus) plants in response to low temperature. In this work, it was demonstrated that the
UV regulates the expression of phenylpropanoid biosynthesis genes in cucumber (Cucumis sativus L.) in an organ and spectrum dependent manner.
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Expression of cucumber (Cucumis sativus) genes encoding the phenylpropanoid and flavonoid biosynthetic enzymes phenylalanine ammonia lyase (PAL), cinnamic acid 4-hydroxylase (C4H), and chalcone synthase (CHS), was studied under control light conditions (photosynthetically active radiation, PAR) in
The effects of infection by Phytophthora infestans on the control of phenylpropanoid metabolism in wounded potato tissue.
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During the first 24 h of in vitro incubation of excised potato tuber (Solanum tuberosum L.) discs, the appearance of phenylalanine ammonia-lyase (PAL; EC 3.4.1.5) and the accumulation of chlorogenic acid are both stimulated by infection with Phytophthora infestans (Mont.) de Bary. Whereas in control
Stress Responses in Alfalfa (Medicago sativa L.) (XIV. Changes in the Levels of Phenylpropanoid Pathway Intermediates in Relation to Regulation of L-Phenylalanine Ammonia-Lyase in Elicitor-Treated Cell-Suspension Cultures).
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We have used high-resolution gas chromatography to determine the levels of trans-cinnamic acid (CA) and trans-4-coumaric acid (4CA) in alfalfa (Medicago sativa L.) cell-suspension cultures to address the role of these phenylpropanoid pathway intermediates as potential negative regulators of
Elucidation of the biosynthesis pathway and heterologous construction of a sustainable route for producing umbelliferone.
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Background
Coumarins play roles in many biological processes. Angelica decursiva is one of the major sources of coumarins in China. Due to increasing demand for coumarins in the marketplace, traditional extraction from plants is now considered economically insufficient andStress responses in alfalfa (Medicago sativa L.). XX. Transcriptional activation of phenlpropanoid pathway genes in elicitor-induced cell suspension cultures.
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Nuclear transcript run-on analysis was used to investigate++ the relative transcription rates of genes encoding enzymes of isoflavonoid phytoalexin biosynthesis and related pathways in elicitor-treated alfalfa (Medicago sativa L.) cell suspension cultures. Genes encoding L-phenylalanine
Early phenylpropanoid biosynthetic steps in Cannabis sativa: link between genes and metabolites.
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Phenylalanine ammonia-lyase (PAL), Cinnamic acid 4-hydroxylase (C4H) and 4-Coumarate: CoA ligase (4CL) catalyze the first three steps of the general phenylpropanoid pathway whereas chalcone synthase (CHS) catalyzes the first specific step towards flavonoids production. This class of specialized
Role of Ca2+ in phenolic compound metabolism of barley (Hordeum vulgare L.) sprouts under NaCl stress.
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BACKGROUND
The literature on the role of calcium ion (Ca2+ ) in relation to phenolic compounds metabolism and related enzymes activities remains controversial. It is still unclear whether Ca2+ affects phenolic compounds content of barley sprouts. This studyRegulation of water-soluble phenolic acid biosynthesis in Salvia miltiorrhiza Bunge.
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Salvia miltiorrhiza Bunge (Lamiaceae) root, generally called Danshen, is an important herb in Chinese medicine widely used for treatment of various diseases. Phenolic acids in S. miltiorrhiza, as important effective compounds, have become a new research focus in plant secondary metabolism in recent
NaCl stress on physio-biochemical metabolism and antioxidant capacity in germinated hulless barley (Hordeum vulgare L.).
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BACKGROUND
Hulless barley generally grows in barren fields, where soil salinization is serious. However, only a few studies have been carried out investigating germinated hulless barley under salt stress. In the present study, the effect of NaCl stress on the physio-biochemical metabolism and
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