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Do vacuolar peroxidases act as plant caretakers?
Year:
2013
Source of publication :
Plant Science
Authors :
Oren-Shamir, Michal
;
.
Zipor, Gadi
;
.
Volume :
199-200
Co-Authors:
Zipor, G., Department of Ornamental Horticulture, Agriculture Research Organization, P.O.Box 6, Bet-Dagan 50250, Israel
Oren-Shamir, M., Department of Ornamental Horticulture, Agriculture Research Organization, P.O.Box 6, Bet-Dagan 50250, Israel
Facilitators :
From page:
41
To page:
47
(
Total pages:
7
)
Abstract:
Plant vacuolar peroxidases catalyze the reduction of toxic H2O2 accumulated in the vacuoles by oxidizing a variety of secondary metabolites. The redundancy of peroxidases and their ability to react with a wide range of substrates have prevented the observation of a clear phenotypic effect by modifying a single gene. Here we review the correlative and partial data on vacuolar peroxidases, including evidence for genes encoding vacuolar localized peroxidases, and indications of peroxidase activity in the vacuole. Based on these data, we suggest that these enzymes are key players in the adaptation of plants to change and serve as plant caretakers. At the cellular level, peroxidases protect the plant by scavenging excess H2O2 that accumulates in the vacuoles under stressful conditions. At the tissue level, they are responsible for the last steps in the synthesis of the phytoalexins that often accumulate following pathogen attack of the plant tissue. At the whole-plant level, we suggest that peroxidases are involved in controlling the quality and quantity of light reaching the photosynthetic apparatus as plants adapt to lower light intensities. Further characterization of peroxidases, based on high-throughput genomic and metabolomic data, will help elucidate the mechanisms by which plants adapt to change. © 2012.
Note:
Related Files :
Genetics
metabolism
photosynthesis
plant
plant physiology
Plants
Review
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Related Content
More details
DOI :
10.1016/j.plantsci.2012.09.018
Article number:
Affiliations:
Database:
Scopus
Publication Type:
Review
;
.
Language:
English
Editors' remarks:
ID:
19710
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:31
Scientific Publication
Do vacuolar peroxidases act as plant caretakers?
199-200
Zipor, G., Department of Ornamental Horticulture, Agriculture Research Organization, P.O.Box 6, Bet-Dagan 50250, Israel
Oren-Shamir, M., Department of Ornamental Horticulture, Agriculture Research Organization, P.O.Box 6, Bet-Dagan 50250, Israel
Do vacuolar peroxidases act as plant caretakers?
Plant vacuolar peroxidases catalyze the reduction of toxic H2O2 accumulated in the vacuoles by oxidizing a variety of secondary metabolites. The redundancy of peroxidases and their ability to react with a wide range of substrates have prevented the observation of a clear phenotypic effect by modifying a single gene. Here we review the correlative and partial data on vacuolar peroxidases, including evidence for genes encoding vacuolar localized peroxidases, and indications of peroxidase activity in the vacuole. Based on these data, we suggest that these enzymes are key players in the adaptation of plants to change and serve as plant caretakers. At the cellular level, peroxidases protect the plant by scavenging excess H2O2 that accumulates in the vacuoles under stressful conditions. At the tissue level, they are responsible for the last steps in the synthesis of the phytoalexins that often accumulate following pathogen attack of the plant tissue. At the whole-plant level, we suggest that peroxidases are involved in controlling the quality and quantity of light reaching the photosynthetic apparatus as plants adapt to lower light intensities. Further characterization of peroxidases, based on high-throughput genomic and metabolomic data, will help elucidate the mechanisms by which plants adapt to change. © 2012.
Scientific Publication
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