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https://hdl.handle.net/2440/27773
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Type: | Journal article |
Title: | Cross-resistance to imazethapyr in a fluazifop-P-butyl-resistant population of Digitaria sanguinalis |
Author: | Hidayat, I. Preston, C. |
Citation: | Pesticide Biochemistry and Physiology, 2001; 71(3):190-195 |
Publisher: | Academic Press Inc |
Issue Date: | 2001 |
ISSN: | 0048-3575 |
Statement of Responsibility: | Imam Hidayat and Christopher Preston |
Abstract: | A population of Digitaria sanguinalis selected by and resistant to the acetyl-coenzyme A carboxylase-inhibiting herbicide fluazifop-P-butyl is cross-resistant to the acetolactate synthase (ALS) inhibitor imazethapyr. The resistant population was six-fold resistant to imazethapyr despite never having been exposed to any ALS-inhibiting herbicide. ALS activity extracted from the resistant population was susceptible to imidazolinone herbicides. Malathion, a known cytochrome P450 monooxygenase inhibitor, synergized imazethapyr activity on the resistant population, suggesting that resistance is due to increased herbicide metabolism. In contrast, malathion antagonized fluazifop-P-butyl activity. Therefore, it is likely that the enzyme responsible for fluazifop acid detoxification in D. sanguinalis is different from the enzyme that detoxifies imazethapyr. |
Description: | Copyright © 2001 Elsevier Science (USA). All rights reserved. |
DOI: | 10.1006/pest.2001.2576 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/622930/description#description |
Published version: | http://dx.doi.org/10.1006/pest.2001.2576 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 2 |
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