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Plant Physiology 62:696-698 (1978)
© 1978 American Society of Plant Biologists

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Articles

Plant Chemiluminescence

Fred B. Abeles1

Gerald R. Leather and Leonard E. Forrence

United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland 21701, Weed Physiology and Growth Regulator Research, Science and Education Administration, United States Department of Agriculture, Frederick, Maryland 21701

Light production by plants was confirmed by measuring chemiluminescence from root and stem tissue of peas (Pisum sativum), beans (Phaseolus vulgaris), and corn (Zea mays) in a modified scintillation spectrophotometer. Chemiluminescence was inhibited by treating pea roots with boiling ethanol or by placing them in a N2 gas phase. Chemiluminescence was increased by an O2 gas phase or by the addition of luminol. NaN3 and NaCN blocked both in vitro and in vivo chemiluminescence.

It is postulated that the source of light is the hydrogen peroxide-peroxidase enzyme system. It is known that this system is responsible for chemiluminescence in leukocytes and it seems likely that a similar system occurs in plants.

1 Present address: Office of Competitive Grants, USDA-SEA, 1300 Wilson Blvd., Arlington, Va. 22209.






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Copyright © 1978 by the American Society of Plant Biologists