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Inhibition of Photosynthesis by Pyriclor

Published online by Cambridge University Press:  12 June 2017

R. W. Meikle
R. W. Meikle*
Affiliation:
Agricultural Research, The Dow Chemical Company, Walnut Creek, California
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Abstract

The effect of 2,3,5-trichloro-4-pyridinol (pyriclor) on some photochemical reactions that bring about the formation of assimilatory power—the generation of adenosine-5′-triphosphate (ATP) and reduced nicotinamide-adenine dinucleotide phosphate (NADHP2)–at the expense of radiant energy has been determined using isolated spinach (Spinacia oleracea L., var. Viroflay) chloroplasts. The assimilation of carbon dioxide and cyclic photophosphorylation catalyzed by riboflavin-5′-phosphate (FMN) both showed inhibition at a rather high level of the pyridinol. However, oxygen evolution and non-cyclic photophosphorylation were strongly inhibited. Evidence is presented to support the conclusion that the locus of attack is the oxygen-evolving system and/or Pigment System 2 of the photosynthetic apparatus.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 4 , July 1970 , pp. 475 - 478
Copyright
Copyright © 1970 Weed Science Society of America 

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References

Literature Cited

1. Arnon, D. I. 1949. Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris . Plant Physiol. 24:3–4.Google Scholar
2. Bruno, G. A. and Christian, J. E. 1961. Determination of carbon-14 in aqueous bicarbonate solutions by liquid scintillation counting techniques. Application to biological fluids. Anal. Chem. 83:1216–1218.Google Scholar
3. Good, N. E. 1961. Inhibitors of the Hill reaction. Plant Physiol. 36:788–803.CrossRefGoogle ScholarPubMed
4. Good, N. E., Izawa, S. and Hind, G. 1966. Uncoupling and energy transfer inhibition in photophosphorylation, p. 75–112. In Sanadi, D. R. (ed.) Current Topics in Bioenergetics. Vol. I. Academic Press, New York.Google Scholar
5. Hind, G. and Olson, J. M. 1968. Election transport pathways in photosynthesis. Ann. Rev. Plant Physiol. 19:249–282.CrossRefGoogle Scholar
6. Hoagland, D. R. and Arnon, D. I. 1950. The water-culture method for growing plants without soil. California Agr. Exp. Sta. Circ. 347:1–32.Google Scholar
7. Jensen, R. G. and Bassham, J. A. 1966. Photosynthesis by isolated chloroplasts. Proc. National Acad. Sci. 56:1095–1101.Google Scholar
8. Kalberer, P. P., Buchanan, B. B. and Arnon, D. I. 1967. Rates of photosynthesis by isolated chloroplasts. Proc. Nat. Acad. Sci. 57:1542–1549.CrossRefGoogle ScholarPubMed
9. Kok, B. 1965. Photosynthesis: the path of energy, p. 944. In Bonner, J. and Varner, J. E. (ed.) Plant Biochemistry. Academic Press, New York.Google Scholar
10. Losada, M. and Arnon, D. I. 1964. Enzyme systems in photosynthesis. I. Cyclic photophosphorylation, p. 583–585. In Linskens, H. F., Sanwal, B. D. and Tracey, M. V. (ed.) Modern Methods of Plant Analysis. Vol. VII. Springer-Verlag, Berlin.Google Scholar
11. Losada, M. and Arnon, D. I. 1964. Enzyme systems in photosynthesis. II. Noncyclic photophosphorylation, p. 586–588. In Linskens, H. F., Sanwal, B. D. and Tracey, M. V. (ed.) Modern Methods of Plant Analysis. Vol. VII. Springer-Verlag, Berlin.Google Scholar
12. Moreland, D. E. 1967. Mechanisms of action of herbicides. Ann. Rev. Plant Physiol. 18:365–386.Google Scholar
13. Vishniak, W. 1957. Methods for study of the Hill reaction, p. 344–345. In Colowick, S. P. and Kaplan, N. O. (ed.) Methods in Enzymology. Vol. IV. Academic Press, New York.Google Scholar
14. Wessels, J. C. S. and Van der Veen, R. 1956. The action of some derivatives of phenylurethan and of 3-phenyl-1,1-dimethylurea on the Hill reaction. Biochim. Biophys. Acta 19:548–549.CrossRefGoogle Scholar
15. Winget, G. D., Izawa, S. and Good, N. E. 1965. Stoichiometry of photophosphorylation. Biochem. Biophys. Res. Commun. 21:438–443.Google Scholar