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פותח על ידי קלירמאש פתרונות בע"מ -
Effect of silver ions and ethylene on auxin metabolism and auxininduced ethylene production in tobacco leaf discs
Year:
1985
Source of publication :
Physiologia Plantarum
Authors :
אהרוני, נחמיה
;
.
Volume :
63
Co-Authors:
Aharoni, N., Dept of Fruit and Vegetable Storage, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
438
To page:
444
(
Total pages:
7
)
Abstract:
The antagonistic effects of ethylene and Ag+ on the metabolism of [1‐14C]indole‐3‐acetic acid (IAA) and on the rates of ethylene production were studied in tobacco leaf discs (Nicotiana rustica var. Brasilia). During the first 10 h of incubation, Ag+‐pretreated leaf discs contained more free [14C]IAA than untreated ones due to decreased oxidative decarboxylation, and the discs also produced more ethylene. Exogenously supplied ethylene nullified these effects of Ag+. However, the most pronounced effect of Ag+ in increasing ethylene production, as well as the strongest antagonistic effect of exogenous ethylene, were found between 24 and 48 h of incubation. During this time span no effect on the level of free IAA and on its decarboxylation could be observed. It is suggested that ethylene exerted its autoinhibitory effect by a feedback control on the IAA‐induced ethylene biosynthesis. Possible mechanisms for the autoinhibitory effect of ethylene are discussed. Copyright © 1985, Wiley Blackwell. All rights reserved
Note:
Related Files :
Indole‐3‐acetic acid
Nicotiana rustica
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1399-3054.1985.tb02323.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23580
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:00
Scientific Publication
Effect of silver ions and ethylene on auxin metabolism and auxininduced ethylene production in tobacco leaf discs
63
Aharoni, N., Dept of Fruit and Vegetable Storage, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Effect of silver ions and ethylene on auxin metabolism and auxininduced ethylene production in tobacco leaf discs
The antagonistic effects of ethylene and Ag+ on the metabolism of [1‐14C]indole‐3‐acetic acid (IAA) and on the rates of ethylene production were studied in tobacco leaf discs (Nicotiana rustica var. Brasilia). During the first 10 h of incubation, Ag+‐pretreated leaf discs contained more free [14C]IAA than untreated ones due to decreased oxidative decarboxylation, and the discs also produced more ethylene. Exogenously supplied ethylene nullified these effects of Ag+. However, the most pronounced effect of Ag+ in increasing ethylene production, as well as the strongest antagonistic effect of exogenous ethylene, were found between 24 and 48 h of incubation. During this time span no effect on the level of free IAA and on its decarboxylation could be observed. It is suggested that ethylene exerted its autoinhibitory effect by a feedback control on the IAA‐induced ethylene biosynthesis. Possible mechanisms for the autoinhibitory effect of ethylene are discussed. Copyright © 1985, Wiley Blackwell. All rights reserved
Scientific Publication
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