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J Environ Manage

Title:		Long-term fertilization suppresses rice pathogens by microbial volatile compounds
Author(s):		Liang Y; Wei L; Wang S; Hu C; Xiao M; Zhu Z; Deng Y; Wu X; Kuzyakov Y; Chen J; Ge T;
Address:		"State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China; Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China; Key Laboratory of Agro-Ecological Processes in Subtropical Region & Changsha Research Station for Agricultural and Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China; University of Chinese Academy of Sciences, Beijing, 100049, China. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China; Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China; Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China. Electronic address: wangshuang1@nbu.edu.cn. College of Mechanical and Electrical Engineering, Tarim University, Alar, 843300, China. School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, Jiangxi Province, China. Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004, Hunan Province, China. Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, 37077, Goettingen, Germany; Peoples Friendship University of Russia (RUDN University), 117198, Moscow, Russia; Institute of Environmental Sciences, Kazan Federal University, 420049, Kazan, Russia"
Journal Title:		J Environ Manage
Year:		2023
Volume:		20230314
Issue:
Page Number:		117722 -
DOI:		10.1016/j.jenvman.2023.117722
ISSN/ISBN:		1095-8630 (Electronic) 0301-4797 (Linking)
Abstract:		"Microbial volatile organic compounds (VOCs) can suppress plant pathogens. Although fertilization strongly affects soil microbial communities, the influence of fertilization on microbial VOC-mediated suppression of pathogens has not been elucidated. Soil was sampled from a paddy field that had been subjected to the following treatments for 30 years: a no-fertilizer control, mineral fertilization (NPK), NPK combined with rice straw (NPK + S), NPK combined with chicken manure (70% NPK + 30% M). Then, within a laboratory experiment, pathogens were exposed to VOCs without physical contact to assess the impact of VOCs emitted from paddy soils on in vitro growth of the fungal rice pathogens: Pyricularia oryzae and Rhizoctonia solani. The VOCs emitted from soil reduced the mycelial biomass of P. oryzae and R. solani by 36-51% and 10-30%, respectively, compared to that of the control (no soil; no VOCs emission). Overall, the highest suppression of P. oryzae and R. solani was in the NPK and NPK + S soils, which emitted more quinones, phenols, and low alcohols than NPK + M soils. The abundances of quinones and phenols in the soil air were maximal in the NPK-fertilized soil because the low ratio of dissolved organic carbon and Olsen-P increased the population of key species such as Acidobacteriae, Anaerolineae, and Entorrhizomycetes. The abundance of alcohols was minimum in the NPK + S fertilized soil because the high SOC content decreased the population of Sordariomycetes. In conclusion, mineral fertilization affects bacterial and fungal VOC emissions, thereby suppressing the growth of R. solani and P. oryzae"
Keywords:		*Oryza Soil Microbiology Soil Bacteria Biomass Fertilizers/analysis Manure Agriculture Fertilization Plant pathogens Pyricularia oryzae Rhizoctonia solani Soil microbial community Volatile organic compounds;
Notes:		"MedlineLiang, Yuqin Wei, Liang Wang, Shuang Hu, Can Xiao, Mouliang Zhu, Zhenke Deng, Yangwu Wu, Xiaohong Kuzyakov, Yakov Chen, Jianping Ge, Tida eng England 2023/03/17 J Environ Manage. 2023 Jun 15; 336:117722. doi: 10.1016/j.jenvman.2023.117722. Epub 2023 Mar 14"