Add like
Add dislike
Add to saved papers

Hydrogen cyanide produced by <i></i>Pseudomonas chlororaphis<i></i> O6 is a key aphicidal metabolite.

A biocontrol bacterium <i></i>Pseudomonas chlororaphis<i></i> O6 promotes plant health through multifaceted mechanisms. In this study, we used <i></i>P. chlororaphis<i></i> O6 mutants to examine metabolites with aphicidal activity. Direct application of intact <i></i>P. chlororaphis<i></i> cells to the surface of second instar nymphs of the green peach aphid resulted in no mortality. However, nymphs died when exposed only to the volatiles produced by the <i></i>P. chlororaphis<i></i> O6 wild-type strain when growing on rich media. Mutants lacking in production of two antibiotics, phenazine and pyrrolnitrin, or the insect toxin, FitD, retained the aphicidal potential of the wild type strain. However, the volatiles produced by mutants defective in the lacking production of hydrogen cyanide (HCN) or with a defect in the synthesis of a global regulator, GacS, which regulates HCN synthesis, showed no aphicidal activity. Direct application of potassium cyanide caused mortality of green peach aphid nymphs. These results indicate that HCN production by a plant probiotic is involved in preventing insect growth.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app