Effect of Glyphosate on Auxin Transport in Corn and Cotton Tissues | Zendy

J. R. Baur | Zendy

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Effect of Glyphosate on Auxin Transport in Corn and Cotton Tissues

Author(s) -

J. R. Baur

Publication year - 1979

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.63.5.882

Subject(s) - hypocotyl , auxin , coleoptile , glyphosate , glycine , polar auxin transport , botany , biology , horticulture , chemistry , agronomy , amino acid , biochemistry , arabidopsis , mutant , gene

Basipetal auxin transport in 6-day-old dark-grown corn coleoptiles was severely inhibited by increasing levels of glyphosate applied during the transport period.The velocity of basipetal transport of [(14)C]indoleacetic acid in hypocotyls from 7-day-old cotton seedlings was significantly reduced when sublethal doses of glyphosate [N-(phosphonomethyl)glycine] were applied to the cotyledonary leaves 24 hours before transport measurement. Simultaneous application of glyphosate and indoleacetic acid during transport measurement had no effect on basipetal transport in cotton hypocotyl sections.Slowing of transport was inversely proportional to the dosage applied to both species.

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