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Glutathione and MSMA Interactions.

Monosodium methanearsonate (MSMA) has been used for week control in cotton in the southern United States. Common cocklebur, (Xanthium strumarium), is a competitive weed in cotton production and has developed resistance to MSMA. The mechanism of resistance is unknown at present; however, the mechanisms do not involve degradation of the herbicide, or differential uptake and translocation. This study examined the interaction between glutathione and MSMA as part of the mechanism of resistance. Exogenous glutathione counteracted the effects of MSMA on the growth of susceptible cocklebur seedlings, callus, shoots and leaf discs. Thus, the role of glutathione may involve free radical scavenging.
N.D. Camper, Aranya Pimmongkol
Department of Plant Pathology and Physiology
Clemson University
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Author:Camper, N.D.; Pimmongkol, Aranya
Publication:Bulletin of the South Carolina Academy of Science
Article Type:Brief Article
Geographic Code:1USA
Date:Jan 1, 2001
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