Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia
Limnocharis flava (L.) Buchenau is among the most problematic rice weeds in Malaysia and is also reported to have developed multiple resistance to AHAS inhibitor bensulfuron-methyl and synthetic auxin 2,4-D. In this study, resistance across different AHAS inhibitors was characterised in a L. flava p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/75214/1/Patterns%20of.pdf |
| _version_ | 1796979815795916800 |
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| author | Zakaria, Norazu Ahmad Hamdani, Muhamad Saiful Jurami, Abdul Shukor |
| author_facet | Zakaria, Norazu Ahmad Hamdani, Muhamad Saiful Jurami, Abdul Shukor |
| author_sort | Zakaria, Norazu |
| collection | UPM |
| description | Limnocharis flava (L.) Buchenau is among the most problematic rice weeds in Malaysia and is also reported to have developed multiple resistance to AHAS inhibitor bensulfuron-methyl and synthetic auxin 2,4-D. In this study, resistance across different AHAS inhibitors was characterised in a L. flava population infesting rice fields in Pulau Pinang, Malaysia. Dose-response experiments were conducted to determine the level of resistance to sulfonylureas, imidazolinone, triazolopyrimidine, and pyrimidinyl-thiobenzoate. Cross-resistance across different AHAS inhibitors was observed in the resistant L. flava population, exhibiting a high level of resistance to bensulfuron-methyl, while exhibiting a moderate level of resistance to metsulfuron-methyl and a low level of resistance to pyrazosulfuron-ethyl and pyribenzoxim. However, all resistant L. flava individuals were still sensitive to imazethapyr, penoxsulam and bispyribac-sodium. Based on the results, it is likely that resistance to AHAS inhibitors in L. flava is conferred by target-site resistance mechanisms. |
| first_indexed | 2024-03-06T10:14:27Z |
| format | Article |
| id | upm.eprints-75214 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:14:27Z |
| publishDate | 2018 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | dspace |
| spelling | upm.eprints-752142019-11-28T06:41:30Z http://psasir.upm.edu.my/id/eprint/75214/ Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia Zakaria, Norazu Ahmad Hamdani, Muhamad Saiful Jurami, Abdul Shukor Limnocharis flava (L.) Buchenau is among the most problematic rice weeds in Malaysia and is also reported to have developed multiple resistance to AHAS inhibitor bensulfuron-methyl and synthetic auxin 2,4-D. In this study, resistance across different AHAS inhibitors was characterised in a L. flava population infesting rice fields in Pulau Pinang, Malaysia. Dose-response experiments were conducted to determine the level of resistance to sulfonylureas, imidazolinone, triazolopyrimidine, and pyrimidinyl-thiobenzoate. Cross-resistance across different AHAS inhibitors was observed in the resistant L. flava population, exhibiting a high level of resistance to bensulfuron-methyl, while exhibiting a moderate level of resistance to metsulfuron-methyl and a low level of resistance to pyrazosulfuron-ethyl and pyribenzoxim. However, all resistant L. flava individuals were still sensitive to imazethapyr, penoxsulam and bispyribac-sodium. Based on the results, it is likely that resistance to AHAS inhibitors in L. flava is conferred by target-site resistance mechanisms. Czech Academy of Agricultural Sciences 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/75214/1/Patterns%20of.pdf Zakaria, Norazu and Ahmad Hamdani, Muhamad Saiful and Jurami, Abdul Shukor (2018) Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia. Plant Protection Science, 54 (1). 48 - 59. ISSN 1212-2580; ESSN: 1805-9341 https://www.agriculturejournals.cz/web/pps.htm?type=article&id=131_2016-PPS 10.17221/131/2016-PPS |
| spellingShingle | Zakaria, Norazu Ahmad Hamdani, Muhamad Saiful Jurami, Abdul Shukor Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title | Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title_full | Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title_fullStr | Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title_full_unstemmed | Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title_short | Patterns of resistance to AHAS inhibitors in Limnocharis flava from Malaysia |
| title_sort | patterns of resistance to ahas inhibitors in limnocharis flava from malaysia |
| url | http://psasir.upm.edu.my/id/eprint/75214/1/Patterns%20of.pdf |
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