Abstract
A study was made concerning the effect of various herbicides, when used alone or in combination, on nitrite accumulation in excised leaves of wheat (Triticum aestivum L., var. `Centurk'). Treatment of leaves with photosynthetic inhibitor herbicides, known to interfere with the transfer of light energy, caused accumulation of nitrite under illuminated, aerobic conditions. When certain other herbicides, which do not interfere with the photosynthetic process, were applied to leaves and incubated under dark, aerobic conditions, nitrite accumulations were enhanced over those treated with photosynthetic inhibitors or the controls. The combination of photosynthetic inhibitor herbicides and certain other “nonphotosynthetic inhibitor” herbicides caused relatively large amounts of nitrite to accumulate in light or in darkness. Nitrite accumulation occurs when nitrate and nitrite reduction are not in balance. The proposed actions of the herbicides used in this study are discussed. This discussion provides a rationale for the accumulation of nitrite by the herbicide-treated leaves.
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Selected References
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- Klepper L., Flesher D., Hageman R. H. Generation of reduced nicotinamide adenine dinucleotide for nitrate reduction in green leaves. Plant Physiol. 1971 Nov;48(5):580–590. doi: 10.1104/pp.48.5.580. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klepper L., Hageman R. H. The occurrence of nitrate reductase in apple leaves. Plant Physiol. 1969 Jan;44(1):110–114. doi: 10.1104/pp.44.1.110. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mannella C. A. 2,4-Dichlorophenoxyacetic Acid Inhibits the Outer Membrane NADH Dehydrogenase of Plant Mitochondria. Plant Physiol. 1978 Sep;62(3):468–469. doi: 10.1104/pp.62.3.468. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Neyra C. A., Hageman R. H. Dependence of nitrite reduction on electron transport chloroplasts. Plant Physiol. 1974 Oct;54(4):480–483. doi: 10.1104/pp.54.4.480. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Neyra C. A., Hageman R. H. Relationships between Carbon Dioxide, Malate, and Nitrate Accumulation and Reduction in Corn (Zea mays L.) Seedlings. Plant Physiol. 1976 Dec;58(6):726–730. doi: 10.1104/pp.58.6.726. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ritenour G. L., Joy K. W., Bunning J., Hageman R. H. Intracellular localization of nitrate reductase, nitrite reductase, and glutamic Acid dehydrogenase in green leaf tissue. Plant Physiol. 1967 Feb;42(2):233–237. doi: 10.1104/pp.42.2.233. [DOI] [PMC free article] [PubMed] [Google Scholar]