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This project is one of the seven winners of the «Microbials - Direct Use of Micro-Organisms», call 2019. Project partners: University of Zürich; Agroscope.
Förderbeitrag: CHF 300'000
Dauer: 01.2020 - 05.2023
Microbials, seit 2016
Dr. Kirsty Agnoli
University of Zurich
Dept of Plant and Microbial Biology
8008 Zürich (Schweiz)
- k.agnoli@botinst. uzh. ch
Standard modern farming techniques rely on the heavy use of pesticides to improve crop yields, but many cause adverse effects, both to the consumer and to the environment. Bacteria can be used as environmentally friendly alternatives to pesticides, to improve plant growth and even to limit plant disease. However, few bacteria have been registered for such plant disease control, and at present none are from the new genus Paraburkholderia, which contains talented plant-beneficial bacteria with wide-ranging disease control abilities.
We propose to bioprospect in the plant microbiome for bacteria that live inside and on the surface of plants, particularly those from the genus Paraburkholderia, that can protect against important agricultural pathogens, focusing on those that cause fire blight, fungal diseases and potato late blight. Our aim is to identify new bacterial biocontrol agents, to expand the scope for biocontrol in agriculture.
Was ist das Besondere an diesem Projekt?
Our strategy will involve isolating strains from crop plants and testing their potential to control our target diseases, as well as testing already isolated bacteria for such abilities. Paraburkholderia strains that show promise will be characterised and tested in plants for their efficacy in preventing disease. This project aims to identify strains that can confer long-term resistance to pathogens, directly at the site of infection. To this end, the means of treatment with the potential bacterial biocontrol agent will be fitted to the particular crop to be protected; seed inoculation for the fast-growing crops maize and tomato, and spraying the mature tree to protect apple crops.
As our bacteria will be isolated from crop plants, they should already be part of the human diet, and therefore should not cause any ill effects to the consumer.
We have screened our large in-house collection of bacteria for their ability to inhibit/kill the three disease-causing agents, Fusarium solani, Phytopthora infestans and Erwinia amylovora. We have identified two particularly promising P. phenazinium strains which show strong growth properties and do not cause adverse effects on test plants. We are currently testing these strains for in planta biocontrol activity.
Testing of anti-erwinia activity of a panel of environmental isolates from tomato soil is ongoing, and isolation of strains from apple trees is planned for this spring.
None so far
None so far
Am Projekt beteiligte Personen
Letzte Aktualisierung dieser Projektdarstellung 18.05.2021