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Quinclorac resistance induced by the suppression of the expression of 1-aminocyclopropane-1-carboxylic acid (ACC) synthase and ACC oxidase genes in Echinochloa crus-galli var. zelayensis
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Gao, Yuan, Liu, Jun, Pan, Xukun, Liu, Dingrong, Napier, R. (Richard) and Dong, Liyao (2018) Quinclorac resistance induced by the suppression of the expression of 1-aminocyclopropane-1-carboxylic acid (ACC) synthase and ACC oxidase genes in Echinochloa crus-galli var. zelayensis. Pesticide Biochemistry and Physiology, 146 . pp. 25-32. doi:10.1016/j.pestbp.2018.02.005 ISSN 0048-3575.
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WRAP-quinclorac-resistance-induced-suppression-expression-1-aminocyclopropane-1-carboxylic-acid-Napier-2018.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (1786Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.pestbp.2018.02.005
Abstract
We previously reported that the mechanism of quinclorac resistance in Echinochloa crus-galli var. zelayensis may be closely related to ethylene biosynthesis and the detoxification of cyanide. Differences in EcCAS gene sequences and expression levels may result in higher capacity to detoxify cyanide in resistant biotypes, which may avoid cyanide accumulation and avoid more ethylene and cyanide production and then avoid damage. In the present study, we focused on the mechanism of resistance related to ethylene biosynthesis in E. crus-galli var. zelayensis. The fresh weight of susceptible and moderately resistant biotypes were significantly reduced after treatment with quinclorac. However, AOA, an ethylene biosynthesis inhibitor, reduced the impact of quinclorac. On pretreatment with AOA, ethylene production was significantly reduced in the three biotypes. The highly resistant biotype produced less ethylene compared to the other two biotypes. Three ACS and seven ACO genes, which are the key genes in ethylene biosynthesis, were obtained. The expression levels of EcACS-like, EcACS7, and EcACO1 varied in the three biotypes upon treatment with quinclorac, which could be manipulated by AOA. In summary, it is inferred that the expression of EcACS-like, EcACS7, and EcACO1 can be stimulated to varying extent after quinclorac treatment in three E. crus-galli var. zelayensis biotypes, which consequently results in varying levels of ethylene production. Lower expression of these three genes results in more resistance to quinclorac, which may also be related to quinclorac resistance in E. crus-galli var. zelayensis.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QK Botany S Agriculture > SB Plant culture |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||
Library of Congress Subject Headings (LCSH): | Echinochloa crusgalli -- Effect of herbicides on, Herbicide resistance, Quinclorac | ||||||||
Journal or Publication Title: | Pesticide Biochemistry and Physiology | ||||||||
Publisher: | Academic Press | ||||||||
ISSN: | 0048-3575 | ||||||||
Official Date: | April 2018 | ||||||||
Dates: |
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Volume: | 146 | ||||||||
Page Range: | pp. 25-32 | ||||||||
DOI: | 10.1016/j.pestbp.2018.02.005 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 8 March 2018 | ||||||||
Date of first compliant Open Access: | 16 February 2019 | ||||||||
RIOXX Funder/Project Grant: |
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