The Dark Septate Endophytes and Ectomycorrhizal Fungi Effect on <i>Pinus tabulaeformis</i> Carr. Seedling Growth and their Potential Effects to Pine Wilt Disease Resistance
2019
Chu, Honglong | Wang, Chunyan | Li, Zhumei | Wang, Haihua | Xiao, Yuguo | Chen, Jie | Tang, Ming
Pine wilt disease (PWD), a worldwide threat to pine forests, has caused tremendous damage to conifer forest in the world. However, little research has been conducted on the relationship between symbiosis functions of root associated fungi and pine wilt disease. In this study, we assessed the influence of seven ectomycorrhizal fungi (ECMF) and five dark septate endophytic fungi (DSE) on the growth traits and root morphology as well as the correlation of these parameters to the cumulative mortality and the morbidity rates in Pinus tabulaeformis Carr.showed the lowest cumulative mortality rates. We propose that the ECMF/DSE symbiosis enhanced the resistance of pine wilt disease via mitigation the dysfunction of water caused by PWN infection. Our research provided evidence that inoculation of ECMF/DSE could be a potential way for pine wilt disease prevention. To find highly efficient fungi for pine wilt disease management, more ECMF and DSE species should be tested.
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