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. 1984 Dec;76(4):1055–1059. doi: 10.1104/pp.76.4.1055

Effects of Chemical Treatments upon Photosynthetic Parameters in Soybean Seedlings

David T Manning 1,2, Tsong Meng Chen 1,2,1, Andrew J Campbell 1,2, N E Tolbert 1,2, E Wayne Smith 1,2,2
PMCID: PMC1064433  PMID: 16663948

Abstract

The effects of various chemical treatments upon photosynthesis, soluble leaf protein, CO2 compensation point, and leaf light transmission in soybean, Glycine max (L.) Merr., seedlings were examined following varying response periods after application at 14 to 17 days postemergence. The compounds N6-benzyladenine (BA), 2-(4-chlorophenoxy)-2-methylpropanoic acid (CPMP), (4-chlorophenoxy)acetic acid (CPA), rhodanine-N-acetic acid (RAA), and 2,3,5-triiodobenzoic acid (TIBA) significantly increased soluble protein and decreased senescence, measured by leaf light transmission, at CO2 concentrations below the compensation point in a survival chamber. All compounds except BA significantly decreased transmission values under ambient atmospheric conditions. In statistically significant experiments, applications of 3.49 millimolar CPMP increased net photosynthesis on a leaf area basis by an average of 14.4% at all trifoliolate positions with increases generally requiring response periods of 12 days or longer. RAA at 1.31 and 2.61 millimolar increased net photosynthesis by 19 to 36% following 13-day response periods. CPMP and other compounds tested had no effect upon the CO2 compensation point after 4- to 8-day response periods. The effects of CPMP and RAA upon net photosynthesis and soluble protein appeared to involve a combined stimulation of protein synthesis and an antisenescent effect. There were no indications that any of the photosynthetic changes observed resulted from direct differential effects upon ribulose bisphosphate carboxylase-oxygenase. The assays for soluble protein and light transmission responded more consistently to the chemicals than did photosynthesis.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Badger M. R., Lorimer G. H. Activation of ribulose-1, 5-bisphosphate oxygenase, The role of Mg2+, CO2, and pH. Arch Biochem Biophys. 1976 Aug;175(2):723–729. doi: 10.1016/0003-9861(76)90565-8. [DOI] [PubMed] [Google Scholar]
  2. Bunce J. A., Patterson D. T., Peet M. M. Light acclimation during and after leaf expansion in soybean. Plant Physiol. 1977 Aug;60(2):255–258. doi: 10.1104/pp.60.2.255. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Chollet R., Anderson L. L. Regulation of ribulose 1,5-bisphosphate carboxylase-oxygenase activities by temperature pretreatment and chloroplast metabolites. Arch Biochem Biophys. 1976 Sep;176(1):344–351. doi: 10.1016/0003-9861(76)90173-9. [DOI] [PubMed] [Google Scholar]
  4. Haber A. H., Thompson P. J., Walne P. L., Triplett L. L. Nonphotosynthetic retardation of chloroplast senescence by light. Plant Physiol. 1969 Nov;44(11):1619–1628. doi: 10.1104/pp.44.11.1619. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Jewess P. J., Kerr M. W., Whitaker D. P. Inhibition of glycollate oxidase from pea leaves. FEBS Lett. 1975 May 15;53(3):292–296. doi: 10.1016/0014-5793(75)80039-1. [DOI] [PubMed] [Google Scholar]
  6. LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
  7. Manning D. T., Campbell A. J., Chen T. M., Tolbert N. E., Smith E. W. Detection of chemicals inhibiting photorespiratory senescence in a large scale survival chamber. Plant Physiol. 1984 Dec;76(4):1060–1064. doi: 10.1104/pp.76.4.1060. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Servaites J. C. Chemical inhibition of the glycolate pathway in soybean leaf cells. Plant Physiol. 1977 Oct;60(4):461–466. doi: 10.1104/pp.60.4.461. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Silvius J. E., Kremer D. F., Lee D. R. Carbon assimilation and translocation in soybean leaves at different stages of development. Plant Physiol. 1978 Jul;62(1):54–58. doi: 10.1104/pp.62.1.54. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Tolbert N. E. (2-Chloroethyl) Trimethylammonium Chloride and Related Compounds as Plant Growth Substances. II. Effect on Growth of Wheat. Plant Physiol. 1960 May;35(3):380–385. doi: 10.1104/pp.35.3.380. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Widholm J. M., Ogren W. L. Photorespiratory-induced senescence of plants under conditions of low carbon dioxide. Proc Natl Acad Sci U S A. 1969 Jul;63(3):668–675. doi: 10.1073/pnas.63.3.668. [DOI] [PMC free article] [PubMed] [Google Scholar]

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