;
Australian Herbicide Resistance Initiative

Meet the team

Meet the people behind the science

Learn more here

202 Crop Protection Forum

Save the date for Tuesday 8 December, 2020.

Find out more here!

Blog: AHRI Insight

Bringing you the need-to-know in herbicide resistance with our fortnightly newsletter, AHRI insight.

All AHRI Insights

Research

Encouraging more crop, less weeds sustainably through a wide range of research activities.

Research page

Videos

Sometimes, words just aren’t enough. Check out our range of videos covering HWSC methods, resistance management, keynote presentations and more.

All videos

Podcasts

The AHRI Snapshots podcast focuses on researchers and their stories.

Find out more by subscribing and listening to the podcast below.

Listen to AHRI Snapshots here

Sign up for our newsletter & get access to short & sharp insights into the world of more crop, less weeds

 

We respect your email privacy

ahri insight.png

What is AHRI?


Welcome to The Australian Herbicide Resistance Initiative (AHRI) homepage! Before you dig into all our publications and podcasts, you might be wondering who we are and what we do. AHRI was a GRDC initiative which launched in 1998 under the guidance of Professor Stephen Powles. In 2018, we celebrated 20 years of GRDC funding, operating as a research group out of the University of Western Australia. You can get a great overview of what we’re all about by watching the video on the right. You can also learn more in this Outlooks on Pest Management article here.

Blog: AHRI insight
2,4-D resistance – it’s all about perception

Tue, 30 Jun 2020

This AHRI insight is not for the faint-hearted. It is the work of AHRI researcher, Dr Danica Goggin who has dedicated many years to working out how auxin herbicides such as 2,4-D and Dicamba work, and how plants evolve resistance to them. Danica’s research found that plants with fewer receptors on their cell membranes were resistant to 2,4-D due to reduced perception of the 2,4-D. Putting this molecular biology research into words is challenging, so we have created some videos that explain it. 

Featured Publication
Publications Plasma membrane receptor-like kinases and transporters are associated with 2,4-D resistance in wild radish

Tue, 23 Jun 2020

Resistance to the synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) in wild radish (Raphanus raphanistrum) appears to be due to a complex, multifaceted mechanism possibly involving enhanced constitutive plant defence and alterations in auxin signalling. Based on a previous gene expression analysis highlighting the plasma membrane as being important for 2,4-D resistance, this study aimed to identify the components of the leaf plasma membrane proteome that contribute to resistance. Key results included: two receptor-like kinases of unknown function (L-type lectin domain-containing receptor kinase IV.1-like and At1g51820-like) and the ATP-binding cassette transporter ABCB19, an auxin efflux transporter, were identified as being associated with auxinic herbicide resistance.


Grains Research and Development CorporationWeed smartDiversity Era logo