Agrow is part of the Business Intelligence Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

This copy is for your personal, non-commercial use. Please do not redistribute without permission.

Printed By


Gut bacteria behind rotation-resistant rootworms

Researchers from the US University of Illinois (Urbana-Champaign) have found that the presence of specific gut bacteria species allow some western corn rootworms (Diabrotica virgifera virgifera) to survive crop rotation between maize and soybeans. Rotation-resistant populations of the rootworms developed some 20 years ago, and the trait is spreading. Analysis of gut micro-organisms in rotation-resistant rootworms showed that bacterially-produced enzymes improved the rootworm’s ability to digest soybean leaves and reduced the toxic effects of soybean plant defences. Overwintering adults were able to survive long enough to lay eggs that hatched in maize planted the following year. The study’s findings show that gut microbes are not just passive residents of the rootworm gut, but play an active part in insect adaptation, the researchers point out. Details of the study have been published in the journal, Proceedings of the National Academy of Sciences.



What to read next




Ask The Analyst

Please fill in the form below to send over your enquiry or check the Ask The Analyst Page to find out more about the service

Your question has been successfully sent to the email address below and we will get back as soon as possible. my@email.address.

All fields are required.

Please make sure all fields are completed.

Please make sure you have filled out all fields

Please make sure you have filled out all fields

Please enter a valid e-mail address

Please enter a valid Phone Number

Ask your question to our analysts