Understanding the biochemical and then the molecular basis of resistance commences with identifying whether resistance is due to changes at the herbicide enzyme target site (target site resistance) or due to changes elsewhere in the plant (non-target site resistance). There is a focus on ryegrass and wild radish but extending to include wild oats and other weed species.
The AHRI Resistance Mechanisms team is lead by Principal Research Fellow Dr Qin Yu and Research Associate Dr Heping Han. This team works hard to investigate mechanisms of resistance in current and new herbicide resistant weed biotypes and gain fundamental insights into resistance mechanisms and evolution.
Follow the links below to view some of the recent research by the AHRI Resistance mechanisms team:
- Diflufenican resistance in wild radish is by P450s
- World’s first metabolism-based glyphosate resistance discovered
- Group H (HPPD) resistant wild radish
- Is there an invisible gorilla in your paddock?
- Trifluralin resistance is different – recessive inheritance
- Wild radish resistant to Atrazine, super-sensitive to Bromoxynil