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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Benzyl viologen-mediated counteraction of diquat and paraquat phytotoxicities
Year:
1984
Authors :
לוינסון, אפרים
;
.
Volume :
76
Co-Authors:
Lewinsohn, E., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, Israel
Gressel, J., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, Israel
Facilitators :
From page:
125
To page:
130
(
Total pages:
6
)
Abstract:
There was reason from bacterial and algal systems to expect that pretreatments with a paraquat analog might confer tolerance against a subsequent paraquat treatment. Thus, a series of compounds were tested for protective activity against bipyridinium herbicides. These included other bipyridinium compounds and derivatives, as well as compounds having similar or more positive redox potentials than paraquat and compounds known to increase or maintain high superoxide dismutase activity levels in plants. Only treatments with benzyl viologen, a benzyl analog of paraquat, protectedSpirodela oligorrhiza(Kurz) Hegelm. colonies from otherwise damaging levels of diquat. NADP photoreduction by isolated thylakoids was inhibited by the same concentrations of paraquat, diquat, and benzyl viologen given separately. Thus, the benzyl viologen-mediated tolerance against the bipyridinium herbicides is probably not due to a direct interaction at the thylakoid level. Superoxide dismutase activity was about 50% higher in broken plastids of benzyl viologen-treated plants compared to controls, which may partly explain the observed tolerance. © 1984 American Society of Plant Biologists. All rights reserved.
Note:
Related Files :
diquat
Paraquat
Phytotoxicity
עוד תגיות
תוכן קשור
More details
DOI :
10.1104/pp.76.1.125
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
31190
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:00
Scientific Publication
Benzyl viologen-mediated counteraction of diquat and paraquat phytotoxicities
76
Lewinsohn, E., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, Israel
Gressel, J., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, Israel
Benzyl viologen-mediated counteraction of diquat and paraquat phytotoxicities
There was reason from bacterial and algal systems to expect that pretreatments with a paraquat analog might confer tolerance against a subsequent paraquat treatment. Thus, a series of compounds were tested for protective activity against bipyridinium herbicides. These included other bipyridinium compounds and derivatives, as well as compounds having similar or more positive redox potentials than paraquat and compounds known to increase or maintain high superoxide dismutase activity levels in plants. Only treatments with benzyl viologen, a benzyl analog of paraquat, protectedSpirodela oligorrhiza(Kurz) Hegelm. colonies from otherwise damaging levels of diquat. NADP photoreduction by isolated thylakoids was inhibited by the same concentrations of paraquat, diquat, and benzyl viologen given separately. Thus, the benzyl viologen-mediated tolerance against the bipyridinium herbicides is probably not due to a direct interaction at the thylakoid level. Superoxide dismutase activity was about 50% higher in broken plastids of benzyl viologen-treated plants compared to controls, which may partly explain the observed tolerance. © 1984 American Society of Plant Biologists. All rights reserved.
Scientific Publication
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