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| DOI: | 10.1017/wsc.2019.5 |
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| Web URL(s): | https://bioone.org/journals/Weed-Science/volume-67/issue-3/wsc.2019.5/Target-SiteBased-Penoxsulam-Resistance-in-Barnyardgrass-Echinochloa-crus-galli-from/10.1017/wsc.2019.5.full
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| Publication Type:
| Refereed |
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| Author(s): | Fang, Jiapeng;
Liu, Tingting;
Zhang, Yuhua;
Li, Jun;
Dong, Liyao |
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| Author Affiliation: | Fang and Zhang: Ph.D. Candidate and College of Plant Protection, Nanjing Agricultural University and State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, People's Republic of China; Liu: Graduate Student and College of Plant Protection, Nanjing Agricultural University and State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, People's Republic of China; Li: Associate Professor, College of Plant Protection, Nanjing Agricultural University and State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, People's Republic of China; Dong: Professor, College of Plant Protection, Nanjing Agricultural University and State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, People's Republic of China |
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| Title: | Target site-based penoxsulam resistance in barnyardgrass (Echinochloa crus-galli) from China |
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| Source: | Weed Science. Vol. 67, No. 3, May 2019, p. 281-287. |
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| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
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| # of Pages: | 7 |
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| Related Web URL: | https://www.cambridge.org/core/journals/weed-science/article/target-sitebased-penoxsulam-resistance-in-barnyardgrass-echinochloa-crusgalli-from-china/40864ABC9D23711E5723711E57236CC8AC8D0197
Last checked: 08/14/2019
Notes: Abstract only |
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| Keywords: | TIC Keywords: Acetolactate synthase-inhibiting herbicides; Echinochloa crusgalli; Genetic factors; Herbicide resistance; Mechanism of resistance; Penoxsulam; Weed control
Author-Supplied Keywords: Acetolactate synthase (ALS); Cross-resistance; Target-site mutant
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| Geographic Terms: | China |
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| Abstract/Contents: | "Barnyardgrass [Echinochloa crus-galli (L.) P. Beauv.] is acknowledged to be the most troublesome weed in rice fields in Anhui and Jiangsu provinces of China. It cannot be effectively controlled using certain acetolactate synthase (ALS)-inhibiting herbicides, including penoxsulam. Echinochloa crus-galli samples with suspected resistance to penoxsulam were collected to identify the target site-based mechanism underlying this resistance. Populations AXXZ-2 and JNRG-2 showed 33- and 7.3-fold resistance to penoxsulam, respectively, compared with the susceptible JLGY-3 population. Cross-resistance to other ALS inhibitors was reported in AXXZ-2 but not in JNRG-2, and occasionally showed higher sensitivity than JLGY-3. In vitro ALS activity assays revealed that penoxsulam concentrations required to inhibit 50% of ALS activity were 11 and 5.2 times greater in AXXZ-2 and JNRG-2, respectively, than in JLGY-3. DNA and predicted amino acid sequence analyses of ALS revealed Ala-205-Val and Ala-122-Gly substitutions in AXXZ-2 and JNRG-2, respectively. Our results indicate that these substitutions in ALS are at least partially responsible for resistance to penoxsulam." |
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| Language: | English |
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| References: | 32 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fang, J., T. Liu, Y. Zhang, J. Li, and L. Dong. 2019. Target site-based penoxsulam resistance in barnyardgrass (Echinochloa crus-galli) from China. Weed Sci. 67(3):p. 281-287. |
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| DOI: 10.1017/wsc.2019.5 |
| Web URL(s):
https://bioone.org/journals/Weed-Science/volume-67/issue-3/wsc.2019.5/Target-SiteBased-Penoxsulam-Resistance-in-Barnyardgrass-Echinochloa-crus-galli-from/10.1017/wsc.2019.5.full
Last checked: 08/14/2019
Access conditions: Item is within a limited-acess website
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Last checked: 08/14/2019
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Direct download |
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MSU catalog number: b2203399a |
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