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פותח על ידי קלירמאש פתרונות בע"מ -
Adenosine triphosphate-generated transmembrane electric potential in chloroplasts
Year:
1982
Source of publication :
BBA - Bioenergetics
Authors :
שחק, יוספה
;
.
Volume :
681
Co-Authors:
Admon, A., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Shahak, Y., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Avron, M., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Facilitators :
From page:
405
To page:
411
(
Total pages:
7
)
Abstract:
Utilizing oxonol VI as a transmembrane electric potential indicating dye, chloroplasts are shown to develop rapid transient light-induced and ATP-induced potentials. Following the large transient signal smaller steady-state potentials are maintained with either driving system. The ATP-induced potential in the dark depends upon preactivation of the light-triggered ATPase of the chloroplasts, and is inhibited by uncouplers, ionophores such as valinomycin, and energy-transfer inhibitors such as tentoxin, Dio-9 or DCCD. Nigericin increased the signal of both the light- and the ATP-induced reactions. The fact that relatively large transient membrane potentials are induced by either a dark-to-light transition or ATP in the dark provides an explanation for previously observed phenomena such as early kinetics of photophosphorylation and the ATP-induced luminescence. © 1982.
Note:
Related Files :
(Lettuce chloroplast)
ATPase
membrane potential
Oxonol VI
photosynthesis
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0005-2728(82)90182-7
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25069
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:12
Scientific Publication
Adenosine triphosphate-generated transmembrane electric potential in chloroplasts
681
Admon, A., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Shahak, Y., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Avron, M., Biochemistry Department, Weizmann Institute of Science, Rehovot, Israel
Adenosine triphosphate-generated transmembrane electric potential in chloroplasts
Utilizing oxonol VI as a transmembrane electric potential indicating dye, chloroplasts are shown to develop rapid transient light-induced and ATP-induced potentials. Following the large transient signal smaller steady-state potentials are maintained with either driving system. The ATP-induced potential in the dark depends upon preactivation of the light-triggered ATPase of the chloroplasts, and is inhibited by uncouplers, ionophores such as valinomycin, and energy-transfer inhibitors such as tentoxin, Dio-9 or DCCD. Nigericin increased the signal of both the light- and the ATP-induced reactions. The fact that relatively large transient membrane potentials are induced by either a dark-to-light transition or ATP in the dark provides an explanation for previously observed phenomena such as early kinetics of photophosphorylation and the ATP-induced luminescence. © 1982.
Scientific Publication
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