Pheophytin pheophorbide hydrolase
WebFeb 8, 2024 · The stay-green mutant of Arabidopsis thaliana, ore10 forms stable light-harvesting complex II (LHCII) aggregates during dark-induced senescence, which showed a single base deletion (G1351) in the coding region of the pheophytinase (PPH) gene. PPH specifically dephytylates the Mg-free chlorophyll (Chl) pigment pheophytin, yielding … WebJul 8, 2024 · Pheophytin pheophorbide hydrolase (Pheophytinase, PPH) gene encodes a Chl degradation hydrolase. Results: In this study, the coding, genomic and promoter …
Pheophytin pheophorbide hydrolase
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WebJun 27, 2024 · Along with these phyllobilins, barley orthologs of known Arabidopsis thaliana chlorophyll catabolic enzymes were demonstrated to localize in the chloroplast, and two of them, i.e. PAO and pheophytin pheophorbide hydrolase, complemented respective Arabidopsis mutants. These data confirm functionality of the PAO/phyllobilin pathway in … WebMar 20, 2016 · Map-based cloning revealed that the nuclear gene EAS1 encodes a pheophorbide a oxygenase (PaO), a key enzyme for chlorophyll breakdown. A highly conserved Thr residue of PaO was mutated into Ile in the eas1 mutant.
WebApr 1, 2009 · PPH, a chloroplast-located and senescence-induced hydrolase, is widely distributed in algae and land plants. ... Exogenous brassinosteroids alleviate calcium deficiency-induced tip-burn by... WebDec 1, 2003 · The loss of green pigment is due to an oxygenolytic opening of the porphyrin macrocycle of pheophorbide (pheide) a followed by a reduction to yield a fluorescent chl catabolite. This step is comprised of the interaction of two enzymes, pheide a oxygenase (PaO) and red chl catabolite reductase.
WebJun 19, 2013 · Schelbert S, Aubry S, Burla B, Agne B, Kessler F, Krupinska K, Hörtensteiner S: Pheophytin pheophorbide hydrolase (pheophytinase) is involved in chlorophyll breakdown during leaf senescence in Arabidopsis. Plant Cell. 2009, 21: 767-785. 10.1105/tpc.108.064089. WebMar 20, 2009 · Here, we identify pheophytinase (PPH), a chloroplast-located and senescence-induced hydrolase widely distributed in algae and land plants. In vitro, …
WebCharacterization of the pheophorbide a oxygenase/phyllobilin pathway of chlorophyll breakdown in grasses Although the PAO/phyllobilin pathway of chlorophyll breakdown is …
http://bigg.ucsd.edu/universal/reactions/PHEOASE sage lending commercegaWebUniversal reaction: PHEOASE. Descriptive name: Pheophytin pheophorbide hydrolase. Reaction: h2o_c + phptna_c ⇌ h_c + phphbda_c + phytol_c. Metabolites: Stoichiometry. … thiamine stability in nsWebMar 20, 2016 · Map-based cloning revealed that the nuclear gene EAS1 encodes a pheophorbide (PaO), a key enzyme for chlorophyll breakdown. A highly conserved Thr … thiamine speechWebOct 9, 2015 · Free phytol can be derived from chlorophyll turnover and breakdown, in particular during senescence or chlorotic stress. Chlorophyll degradation starts with the removal of the magnesium cation, yielding pheophytin ( Schelbert et al., 2009 ). Subsequently, phytol is cleaved from pheophytin by pheophytin pheophorbide hydrolase ( … thiamine solubilityWebDec 23, 2024 · Pheophytinase (PPH), the phytol hydrolase, plays important roles in chlorophyll degradation. Nevertheless, little attention has been paid to the PPHs in warm-season grass species; neither its detailed function in photosynthesis has been systematically explored to date. thiamine spiegelWebSep 14, 2024 · Based on functional genomic approach with the features of senescence-related regulation and chloroplast targeting, Schelbert et al. identified a hydrolase called … thiamine stabilityWebPheophytin Pheophorbide Hydrolase (Pheophytinase) Is Involved in Chlorophyll Breakdown during Leaf Senescence in ArabidopsisW OA Silvia Schelbert,aSylvain Aubry,a,1Bo … thiamine stores