Photorhabdus Luminescens -- A True All-Rounder: Insect Pathogenic Bacterium Also Helps to Combat Fungal Infestation
Published:19 Jul.2022 Source:Johannes Gutenberg Universitaet Mainz
Future food shortages are expected to become exacerbated in many parts of the world. With this in view, sustainable biological techniques are being explored that could increase the yield of cereals and other food crops and which, unlike the use of chemical pesticides, are environmentally compatible.
The bacterium Photorhabdus luminescens is already used as bioinsecticide to protect crops against a wide range of insect pests. Researchers at Johannes Gutenberg University Mainz (JGU) in Germany have recently demonstrated that P. luminescens can also protect plants against fungal infection. A secondary cell form of the bacterium is responsible for this additional effect. This variant first colonizes the fungal mycelium and then destroys it by degrading chitin, a major component of the cell wall of fungi. The results of this research could be very significant in future, particularly with regard to cereal production.