Examination of 2,4-D tolerance in perennial Glycine species and the involvement of cytochrome P-450 as a tolerance mechanism

High levels of tolerance to 2,4-D ((2,4-dichlorophenoxy)acetic acid) were expressed at the cell and whole plant level by several accessions of wild perennial Glycine species. Heterotrophic cell suspension cultures of soybean (Glycine max (L.) Merr.) and four perennial Glycine accessions were used to investigate ($\sp{14}$C) 2,4-D uptake and metabolism. Uptake of 2,4-D was similar between soybean and the perennials. However, soybean metabolized almost 60% less 2,4-D than the perennials at an equivalent 2,4-D concentration. The primary metabolite produced by the tolerant perennial accessions was the glycoside conjugate of 4-OH-2,5-D. Soybean and less tolerant perennials lines generated primarily amino acid conjugates of 2,4-D.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• White, Randall H.

Contributors dc:contributor

• Liebl, Rex A.

• Agriculture, Agronomy
• Biology, Plant Physiology

Statement dc:rights

• Copyright 1990 White, Randall H.

Language dc:language

eng

Identifier

AAI9114460
(UMI)AAI9114460

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22951