| dc.creator | Zhang,Lele | |
| dc.creator | Li,Wei | |
| dc.creator | Guo,Wenlei | |
| dc.creator | Wu,Cuixia | |
| dc.creator | Wang,Hengzhi | |
| dc.creator | Liu,Weitang | |
| dc.creator | Wang,Jinxin | |
| dc.date | 2017-03-01 | |
| dc.date.accessioned | 2019-04-24T21:20:24Z | |
| dc.date.available | 2019-04-24T21:20:24Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100008 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/56260 | |
| dc.description | ABSTRACT Shepherd's purse (Capsella bursa-pastoris [L.] Medik.) is a troublesome dicot weed that occurs in major wheat (Triticum aestivum L.) production areas in China. Tribenuron-methyl failed to control shepherd's purse in some fields in Runan County, Henan Province. This study aimed to establish the cross-resistance pattern of a resistant (R) population and explore the potential target-site and non-target-site based resistance mechanisms. Acetohydroxyacid synthase (AHAS) gene sequencing revealed a single nucleotide change of CCT to CGT resulting in the Pro to Arg substitution at amino acid position 197 in resistant individuals. Compared with the susceptible (S) population, R population displayed high level resistance to tribenuron-methyl. Cross resistance patterns showed that the R population was high resistant to flucarbazone-Na; moderately resistant to florasulam; low resistant to pyrithiobac sodium and pyroxsulam, and sensitive to imazethapyr. The pretreatment of malathion reduced the 50% growth reduction (GR50) value of tribenuron-methyl by 29% in the R population, suggesting that target-site resistance and non-target-site resistance mechanisms were both present in tribenuron-methyl -resistance of shepherd's purse. This is the first report of the acetolactate synthase Pro197Arg mutation in shepherd's purse. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Instituto de Investigaciones Agropecuarias, INIA | |
| dc.relation | 10.4067/S0718-58392017000100008 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Chilean journal of agricultural research v.77 n.1 2017 | |
| dc.subject | Acetolactate synthase | |
| dc.subject | cytochrome P450 | |
| dc.subject | mutation | |
| dc.subject | resistance | |
| dc.subject | shepherd's purse | |
| dc.title | Herbicides cross resistance of a tribenuron-methyl resistant Capsella bursa-pastoris (L.) Medik. population in wheat field | |
