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Effect of Red and Far‐Red Irradiation on Nucleotide Phosphate and Adenosine Triphosphate Levels in Dark‐Grown Bean and Avena Seedlings

Effect of Red and Far‐Red Irradiation on Nucleotide Phosphate and Adenosine Triphosphate Levels... EDWARD C. SISLER and WILLIAM H. KLEIN Division of Radiation and Organisms, Smitbsonian Institution, Wasbington, D. C. (Received October 3, 1960) Red light (600—700 mn) induces a number of morphological responses in plants (10, 15, 19) which can be inactivated by far-red (700—750 m[i) irradiation (3, 7, 10). Gordon and Surrey (4) have shown that oxidative phosphorylation by rat liver and Avena mitochondria can be affected by red and far-red irradiation. However, the major portion of the influence on oxidative phosphorylation in mitochondria appears to be in preserving the phosphorylating system rather than in stimulating it. Since growth responses require adenosine triphosphate (ATP) as a source of energy, a direct effect of light on the non-photosynthetic production of ATP could account for light-induced growth responses. If the growth response induced by red light is owing to an increase in high energy phosphate, the concentration of ATP in the tissue should increase upon irradiation with red light. The purpose of this study is to investigate the ATP and nucleotide phosphate levels in various parts of the bean plant under conditions which would cause a photomorphogenic response and to evaluate the possibility that the red, far-red response is due to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physiologia Plantarum Wiley

Effect of Red and Far‐Red Irradiation on Nucleotide Phosphate and Adenosine Triphosphate Levels in Dark‐Grown Bean and Avena Seedlings

Sisler, Edward C.; Klein, William H.
Physiologia Plantarum , Volume 14 (1) – Jan 1, 1961
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References (23)

Publisher
Wiley
Copyright
Copyright © 1961 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0031-9317
eISSN
1399-3054
DOI
10.1111/j.1399-3054.1961.tb08144.x
Publisher site
See Article on Publisher Site

Abstract

EDWARD C. SISLER and WILLIAM H. KLEIN Division of Radiation and Organisms, Smitbsonian Institution, Wasbington, D. C. (Received October 3, 1960) Red light (600—700 mn) induces a number of morphological responses in plants (10, 15, 19) which can be inactivated by far-red (700—750 m[i) irradiation (3, 7, 10). Gordon and Surrey (4) have shown that oxidative phosphorylation by rat liver and Avena mitochondria can be affected by red and far-red irradiation. However, the major portion of the influence on oxidative phosphorylation in mitochondria appears to be in preserving the phosphorylating system rather than in stimulating it. Since growth responses require adenosine triphosphate (ATP) as a source of energy, a direct effect of light on the non-photosynthetic production of ATP could account for light-induced growth responses. If the growth response induced by red light is owing to an increase in high energy phosphate, the concentration of ATP in the tissue should increase upon irradiation with red light. The purpose of this study is to investigate the ATP and nucleotide phosphate levels in various parts of the bean plant under conditions which would cause a photomorphogenic response and to evaluate the possibility that the red, far-red response is due to

Journal

Physiologia Plantarum – Wiley

Published: Jan 1, 1961

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