Department of Chemistry, Washington University, St Louis, MO 63130, USA.
Pest Manag Sci. 2010 Apr;66(4):345-8. doi: 10.1002/ps.1911.
Glyphosate-resistant (GR) weed species are now found with increasing frequency and threaten the critically important glyphosate weed-management system [corrected].
The reported (31)P NMR experiments on glyphosate-sensitive (S) and glyphosate-resistant (R) horseweed, Conyza canadensis (L.) Cronq., show significantly more accumulation of glyphosate within the R biotype vacuole.
Selective sequestration of glyphosate into the vacuole confers the observed horseweed resistance to glyphosate. This observation represents the first clear evidence for the glyphosate resistance mechanism in C. canadensis.
草甘膦抗性(GR)杂草物种的出现频率越来越高,对至关重要的草甘膦杂草管理系统构成了威胁。
对草甘膦敏感(S)和草甘膦抗性(R)的加拿大一枝黄花(Conyza canadensis(L.)Cronq.)进行的(31)P NMR 实验报告表明,R 生物型液泡内草甘膦的积累明显更多。
将草甘膦选择性地隔离在液泡中赋予了观察到的对草甘膦的抗性。这一观察结果代表了对加拿大一枝黄花的草甘膦抗性机制的第一个明确证据。