title: Arbuscular mycorrhizal status of plants and the spore density of arbuscular mycorrhizal fungi in the tropical rain forest of Xishuangbanna, southwest China.
abstract: The arbuscular mycorrhizal status of 112 plant species and the spore density of arbuscular mycorrhizal fungi (AMF) in the rhizosphere soil of these plants in the tropical rain forest of Xishuangbanna, southwest China, were surveyed. It was found that 56% of the surveyed species were arbuscular mycorrhizal, 31% were possibly arbuscular mycorrhizal and 13% were non-mycorrhizal. The spore density of AMF ranged from 55 to 1,908 per 100 g soil, with an average of 476. The rhizosphere soil from the arbuscular mycorrhizal plants did not always have a higher AMF spore density than that from the possibly mycorrhizal and non-mycorrhizal plants. The clumped distribution of AMF spores and the complex structure of the underground component of the tropical rain forest may be two important factors that affected the spore density of AMF. Fungi belonging to the genera Acaulospora and Glomus are the dominant AMF in the soil of the tropical rain forest of Xishuangbanna.
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Zhao
authors.affiliation: Xishuangbanna Tropical Botanical Garden, The Chinese Academy of Science, Mengla, 666303 China, China.
authors.forename: Yong-Mei
authors.initials: YM
authors.lastname: Xia
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Xin-Zheng
authors.initials: XZ
authors.lastname: Qin
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Xi-Wu
authors.initials: XW
authors.lastname: Li
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Li-Zhong
authors.initials: LZ
authors.lastname: Cheng
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Sha
authors.affiliation: Biology Department, Yunnan University, Kunming, 650091 China, China.
authors.forename: Guo-Hua
authors.initials: GH
authors.lastname: Wang