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. 1980 Oct;66(4):656–659. doi: 10.1104/pp.66.4.656

Effect of Glyphosate on Intact Bean Plants (Phaseolus vulgaris L.) and Isolated Cells 1

Barry J Brecke 1,2, William B Duke 1
PMCID: PMC440698  PMID: 16661497

Abstract

Whole bean (var. “Eastern Butterwax”) plants and isolated cells were used to investigate possible mechanisms of action of glyphosate [N-(phosphonomethyl)glycine]. Results showed that glyphosate was quickly absorbed by the whole plant but not by individual cells and that it caused a rapid reduction in leaf dry matter accumulation, leaf expansion, leaf angle, and stomatal aperture without affecting the water status of the plant. Glyphosate also caused a rapid reduction in cellular uptake of 86Rb and 32P which preceded its detrimental effects on photosynthesis, RNA and protein synthesis, and respiration of isolated cells. This reduction in ion absorption was not due to a loss of membrane integrity, decrease in energy supply or chelation of ions. It was concluded that glyphosate was directly inhibiting the ion absorption process of bean leaf cells.

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Selected References

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

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