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Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island,China

Phyton-International Journal of Experimental Botany 2021年第1期90卷 179-192页

作者： Xiubing Gao Jiejie Lv Can Guo Anlong Hu Xiaomao Wu Zengping li Guizhou Tea research Institute Guizhou Province Academy of Agricultural ScienceGuiyang550006China agricultural technology research and extension center of qiongzhong li and miao autonomous county Qiongzhong572900China The Provincial Key Laboratory for agricultural Pest Management in Mountainous Region Institute of Plant ProtectionCollege of AgricultureGuizhou UniversityGuiyang550025China College of Environment and Plant Protection Hainan UniversityHaikou570228China

Hevea brasiliensis is one of the important economic trees with a great economic value for natural rubber *** between roots of *** and arbuscular mycorrhizal fungi(AMF)is widely recognized,and can provide a range of benefits for both of *** Island harbors is one of the largest plantations of *** in China,whereas the information regarding the diversity of AMF in the rhizosphere of *** on this island is *** diversity of AMF species in the rhizosphere of rubber tree plantations in Hainan was investigated in this study.A total of 72 soil samples from the rhizosphere of *** RY7-33-97 were *** included 48 samples from plantations in 11 cities or counties that had been planted for 15–25 years,and 24 samples from a demonstrating plantation site of the China National Rubber Tree Germplasm Repository representing plantations with tree plantation ages from one to 40 ***,a total of 68 morphotypes of AMF,belonging to the genera of Archaeospora(1),Glomus(43),Acaulospora(18),Entrophospora(3),Scutellospora(2),and Gigaspora(1)were isolated and identified,as per morphological characteristics of spores presented in the collected soil ***(Frequency,F=100%)and Acaulospora(F=100%)were the predominant genera,and ***(F=63.9%)and ***(F=63.9%)were the predominant *** species differed significantly among collected sites in spore density(SD,290.7–2,186.7 spores per 100 g dry soil),species richness(SR,4.3–12.3),and Shannon-Weiner index of diversity(H,1.24–2.24).SD was negatively correlated with available phosphorus level in the soil;SR was positively correlated with soil total phosphorus content;and H was positively correlated with levels of soil organic matter and total ***,SD,SR,and H were also correlated with *** plantation age,and an increasing trend was observed up to 40 *** results suggest that the AMF community was

关键词： Arbuscular mycorrhizal fungi rubber tree species diversity influence factors plantation age

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