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该文对丹参主产区涉及的8个省20个采样点丹参根围丛枝菌根真菌(AMF)的种属构成、侵染情况、种类组成相似性进行研究。结果表明:丹参根围AMF种类丰富,共分离出7属27种AMF,分别为无梗囊霉属Acaulospora、球囊霉属Glomus、管孢囊霉属Funneliformis、两性囊霉属Ambispora、根生囊霉属Rhizophagus、和平囊霉属Pacispora、近明囊霉属Claroideoglomus。无梗囊霉属(9种,33.3%)、球囊霉属(8种,29.6%)两属是优势属;光壁无梗囊霉A.laevis(90%)、木薯根生囊霉R.manihotis(80%)、双网无梗囊霉A.brieticulata(75%)、疣状无梗囊霉A.tuberculata(70%)等4种AMF是丹参根围的优势种。丹参普遍受AMF侵染,但侵染强度不高,侵染率10.92%~25.93%。各主产区之间的AMF物种组成相似性系数为0.20~0.57,相似性普遍较低。丹参根围AMF种类总体上表现出丰富的多样性,不同产区的AMF物种分布存在相似性和地域性。
In this paper, the species composition, infection status and species composition similarity of arbuscular mycorrhizal fungi (AMF) of Salvia miltiorrhiza were investigated in 20 sampling sites in 8 provinces involved in the main producing areas of Salvia miltiorrhiza. The results showed that there were abundant AMF species in Salvia miltiorrhiza, and 27 species of AMF were isolated from 7 genera, belonging to Acaulospora, Glomus, Funneliformis, Ambispora, Rhizophagus, and Pacispora, and Claroideoglomus. Two species belonging to the genus Trichoderma spp. (9 species, 33.3%) and the genus Glomus (8 species, 29.6%) were dominant genera; A. laevis (90%), Four kinds of AMF, such as A.manihotis (80%), A.brieticulata (75%) and A.tuberculata (70%), were the dominant species in the rhizome of Salvia miltiorrhiza. Salvia miltiorrhiza commonly infected by AMF, but the infection intensity is not high, the infection rate of 10.92% ~ 25.93%. The similarity coefficient of AMF species composition among main producing areas is 0.20-0.57, and the similarity is generally low. The AMF species of Salvia miltiorrhiza rhizosphere all showed abundant diversity, and the distribution of AMF species in different producing areas was similar and regional.