Record ID No. |
5599 |
Author(s) |
PĂ©rez-de-Luque A.*, Tille S., Johnson I., Pascual-Pardo D., Ton J. and Cameron D.D. , 2017 |
Affiliation |
*Department of Animal and Plant Sciences, Alfred Denny Building, Plant Production and Protection (P3) Centre, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK. |
Title |
The interactive effects of arbuscular mycorrhiza and plant growth-promoting rhizobacteria synergistically enhance host plant defences against pathogens. |
Source. Vol.(no):Page |
Scientific reports. 7(16409), doi: 10.1038/s41598-017-16697. |
Categories |
|
Subjects |
Biological Interaction |
Sub-subjects |
Plant growth promoting rhizo bacteria |
Host |
Wheat |
Organism |
Rhizophagus irregularis, Pseudomonas putida |
Country |
United Kingdom. |
Abstracts |
Belowground interactions between plant roots, mycorrhizal fungi and plant growth-promoting
rhizobacteria (PGPR) can improve plant health via enhanced nutrient acquisition and priming of
the plant immune system. Two wheat cultivars difering in their ability to form mycorrhiza were
(co)inoculated with the mycorrhizal fungus Rhizophagus irregularis and the rhizobacterial strain
Pseudomonas putida KT2440. The cultivar with high mycorrhizal compatibility supported higher levels
of rhizobacterial colonization than the low compatibility cultivar. Those levels were augmented by
mycorrhizal infection. Conversely, rhizobacterial colonization of the low compatibility cultivar was
reduced by mycorrhizal arbuscule formation. Single inoculations with R. irregularis or P. putida had
diferential growth efects on both cultivars. Furthermore, while both cultivars developed systemic
priming of chitosan-induced callose after single inoculations with R. irregularis or P. putida, only the
cultivar with high mycorrhizal compatibility showed a synergistic increase in callose responsiveness
following co-inoculation with both microbes. Our results show that multilateral interactions between
roots, mycorrhizal fungi and PGPR can have synergistic efects on growth and systemic priming of
wheat. |