Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.1.1.14 extracted from

  • Szafranska, K.; Reiter, R.J.; Posmyk, M.M.
    Melatonin improves the photosynthetic apparatus in pea leaves stressed by paraquat via chlorophyll breakdown regulation and its accelerated de novo synthesis (2017), Front. Plant Sci., 8, 878 .
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
Melatonin melatonin treatment of seeds enhances the ability of pea seedlings to accelerate chlorophyll breakdown and chlorophyll de novo synthesis before stress by herbicide paraquat treatment appears and several hours after stressing, respectively, while during prolonged paraquat incubation, melatonin delays chlorophyll degradation Pisum sativum

Inhibitors

Inhibitors Comment Organism Structure
Melatonin melatonin treatment of seeds enhances the ability of pea seedlings to accelerate chlorophyll breakdown and chlorophyll de novo synthesis before stress by herbicide paraquat treatment appears and several hours after stressing, respectively, while during prolonged paraquat incubation, melatonin delays chlorophyll degradation Pisum sativum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
chlorophyll + H2O Pisum sativum
-
phytol + chlorophyllide
-
?

Organism

Organism UniProt Comment Textmining
Pisum sativum
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Pisum sativum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
chlorophyll + H2O
-
Pisum sativum phytol + chlorophyllide
-
?

Synonyms

Synonyms Comment Organism
Chlase
-
Pisum sativum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
assay at Pisum sativum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Pisum sativum

Expression

Organism Comment Expression
Pisum sativum almost unchanged chlorophyll to chlorophyllide ratio, i.e. enzyme activity, after 24 h of oxidative stress due to herbicide paraquat treatment additional information

General Information

General Information Comment Organism
metabolism the enzyme is involved in the chlorophyll metabolism. Chlorophyllide is not a first intermediate of chlorophyll breakdown, almost unchanged chlorophyll to chlorophyllide ratio after 24 h of paraquat treatment. Melatonin treatment of seeds enhances the ability of pea seedlings to accelerate chlorophyll breakdown and chlorophyll de novo synthesis before oxidative stress exerted by herbicide paraquat treatment appears and several hours after stressing, respectively, while during prolonged paraquat incubation, melatonin delays chlorophyll degradation Pisum sativum
physiological function chlorophyll (Chl) breakdown, Chl degradation into phytol, is a multistep enzymatic process, phytol is the first decomposition product of the porphyrin ring. The breakdown takes place in four successive steps catalyzed by chlorophyllase (Chlase), Mg-dechelatase, PAO and red chlorophyll catabolite reductase. Enzyme chlorophyllase (Chlase) catalyzes the reaction of chlorophyll hydrolysis to chlorophyllide (Chlide) and phytol, and it is the first enzyme of Chl catabolism during fruit ripening and leaf senescence Pisum sativum