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Forests 2019, 10(2), 140; https://doi.org/10.3390/f10020140

The Dark Septate Endophytes and Ectomycorrhizal Fungi Effect on Pinus tabulaeformis Carr. Seedling Growth and their Potential Effects to Pine Wilt Disease Resistance

1
State Key Laboratory of Conservation and Utilization of Subtropical Agro-bioresources (South China Agricultural University), Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
2
College of Biological Resource and Food Engineering, Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing 655011, Yunnan, China
3
College of Forestry, Northwest A&F University, Yangling 712100, China
4
Department of Biology, Brigham Young University, Provo, UT 84602, USA
*
Author to whom correspondence should be addressed.
Received: 8 January 2019 / Revised: 23 January 2019 / Accepted: 3 February 2019 / Published: 8 February 2019
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Abstract

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. View Full-Text
Keywords: Bursaphelenchus xylophilus; pine seedling; ectomycorrhizal colonization; dark septate endophyte; growth traits; disease resistance Bursaphelenchus xylophilus; pine seedling; ectomycorrhizal colonization; dark septate endophyte; growth traits; disease resistance
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Chu, H.; Wang, C.; Li, Z.; Wang, H.; Xiao, Y.; Chen, J.; Tang, M. The Dark Septate Endophytes and Ectomycorrhizal Fungi Effect on Pinus tabulaeformis Carr. Seedling Growth and their Potential Effects to Pine Wilt Disease Resistance. Forests 2019, 10, 140.

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