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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Hormone-Enhanced Ethylene Production in Leaves
Year:
1989
Authors :
אהרוני, נחמיה
;
.
מאיר, שמעון
;
.
פילוסוף-הדס, סוניה
;
.
פסיס, עדנה
;
.
ראובני, אמיר
;
.
Volume :
Co-Authors:
Facilitators :
From page:
135
To page:
142
(
Total pages:
8
)
Abstract:

The effects of the phytohormones gibberellin (GA.), cytokinin (BA) and abscisic acid (ABA) on ethylene biosynthesis were studied in a model system of spinach leaf discs. All three hormones were found to accelerate ethylene production. The GA3. and BA-enhanced ethylene production during 2 days of incubation resulted mainly from increased ACC synthesis and its conversion to ethylene, as well as from suppression of ACC malonylation. On the other hand, application of ABA, although causing enhancement of both ACC synthesis and ethylene formation from ACC, resulted in a remarkable stimulation of ACC malonylation. The hormones effects were found both on endogenous and on ACC-dependent ethylene production. Further investigation of the stimulatory effect of ABA on EFE activity revealed that it is CO2-mediated. The significance of these hormonal effects on ethylene production will be discussed.

Note:

Advances in Agricultural Biotechnology, vol. 26

Related Files :
ABA
ACC
BA
EFE
ethylene
GA3
hormones
leaf discs
leaves
MACC
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1007/978-94-009-1271-7_15
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
פרק מתוך ספר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45828
Last updated date:
02/03/2022 17:27
Creation date:
23/01/2020 10:30
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Scientific Publication
Hormone-Enhanced Ethylene Production in Leaves
Hormone-Enhanced Ethylene Production in Leaves

The effects of the phytohormones gibberellin (GA.), cytokinin (BA) and abscisic acid (ABA) on ethylene biosynthesis were studied in a model system of spinach leaf discs. All three hormones were found to accelerate ethylene production. The GA3. and BA-enhanced ethylene production during 2 days of incubation resulted mainly from increased ACC synthesis and its conversion to ethylene, as well as from suppression of ACC malonylation. On the other hand, application of ABA, although causing enhancement of both ACC synthesis and ethylene formation from ACC, resulted in a remarkable stimulation of ACC malonylation. The hormones effects were found both on endogenous and on ACC-dependent ethylene production. Further investigation of the stimulatory effect of ABA on EFE activity revealed that it is CO2-mediated. The significance of these hormonal effects on ethylene production will be discussed.

Advances in Agricultural Biotechnology, vol. 26

Scientific Publication
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