Effects of Short-Term Warming on Arbuscular Mycorrhizal Fungi in the Rhizosphere of Different Plant Species in Alpine Meadows on the Qinghai-Tibetan Plateau

doi:10.11733/j.issn.1007-0435.2021.09.012

Acta Agrestia Sinica ›› 2021, Vol. 29 ›› Issue (9): 1959-1966.DOI: 10.11733/j.issn.1007-0435.2021.09.012

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Effects of Short-Term Warming on Arbuscular Mycorrhizal Fungi in the Rhizosphere of Different Plant Species in Alpine Meadows on the Qinghai-Tibetan Plateau

WANG Tan-guo-yan¹, MA Zhi-yuan², LI Pei-yang¹, GUO Jun-hong¹, ZHANG Jia-yi¹, JIANG Sheng-jing¹

1. State Key Laboratory of Grassland Agro-ecosystems/Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs/College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730020, China;
2. Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China

Received:2021-06-01 Revised:2021-07-23 Online:2021-09-15 Published:2021-10-14

短期增温对青藏高原高寒草甸不同植物根际丛枝菌根真菌的影响

王谭国艳¹, 马志远², 李沛洋¹, 郭俊宏¹, 张嘉懿¹, 蒋胜竞¹

1. 兰州大学草地农业生态系统国家重点实验室/兰州大学农业农村部草牧业创新重点实验室/兰州大学草地农业与科技学院, 甘肃兰州 730020;
2. 北京大学城市与环境学院, 北京 100871

通讯作者: 蒋胜竞,E-mail:jiangsj@lzu.edu.cn
作者简介:王谭国艳(2000-),女,汉族,内蒙赤峰人,本科生,主要从事草地生态学研究,E-mail:wangtgy18@lzu.edu.cn
基金资助:
国家自然科学基金青年项目（31901115）；中国博士后科学基金资助项目（2019M653789）；中央高校基本科研业务费专项资金（lzujbky-2019-pd01）项目共同资助

Abstract

Abstract: Arbuscular mycorrhizal (AM) fungi is one of the most important microbial groups in soil ecosystems, and their response to climate warming depends on the characteristics of the host plants. In this study, in situ simulated warming experiments were carried out on the Qinghai-Tibetan Plateau to investigate the response of AM fungal spore composition of 15 plant species to simulated warming by morphological identification. The results showed that the species richness and composition of AM fungal spores were not affected by simulated warming, but the spore density was significantly reduced;Under the simulated warming treatment, the spore composition of AM fungi did not differ significantly at the plant species level, but at the plant family level. In conclusion, simulated warming mainly reduced the spore density of AM fungi in the plant rhizosphere, and may indirectly affect the spore community structure of AM fungi by affecting plant community composition.

Key words: Mycorrhizal fungi, Plant rhizophere, Climate warming, Qinghai-Tibetan Plateau

摘要： 丛枝菌根（Arbuscular mycorrhizal，AM）真菌是土壤生态系统中一类重要的微生物类群，其对气候变暖的响应依赖于宿主植物的不同特性。本研究在青藏高原开展了原位模拟增温试验，以形态鉴定方法，探究了15种植物根际AM真菌的孢子组成对模拟增温的响应。结果表明：AM真菌孢子的物种丰富度及群落组成均不受模拟增温的影响，但孢子密度在模拟增温后显著减少；AM真菌的孢子组成在不同植物物种间没有显著差异，但在不同植物科之间差异显著。综上所述，模拟增温主要降低了植物根际AM真菌的孢子密度，还可能通过影响植物的群落组成间接影响AM真菌的孢子群落结构。

关键词: 菌根真菌, 植物根际, 气候变暖, 青藏高原

CLC Number:

Q938.1

WANG Tan-guo-yan, MA Zhi-yuan, LI Pei-yang, GUO Jun-hong, ZHANG Jia-yi, JIANG Sheng-jing. Effects of Short-Term Warming on Arbuscular Mycorrhizal Fungi in the Rhizosphere of Different Plant Species in Alpine Meadows on the Qinghai-Tibetan Plateau[J]. Acta Agrestia Sinica, 2021, 29(9): 1959-1966.

王谭国艳, 马志远, 李沛洋, 郭俊宏, 张嘉懿, 蒋胜竞. 短期增温对青藏高原高寒草甸不同植物根际丛枝菌根真菌的影响[J]. 草地学报, 2021, 29(9): 1959-1966.

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Effects of Short-Term Warming on Arbuscular Mycorrhizal Fungi in the Rhizosphere of Different Plant Species in Alpine Meadows on the Qinghai-Tibetan Plateau

短期增温对青藏高原高寒草甸不同植物根际丛枝菌根真菌的影响

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