The Distribution Of Resource And Drought-Resistance Of VA Mycorrhizal Fungi Association In Yili Xinjiang

This research On the basis of our country research current situation of VA mycorrhizal fungi undertakes to study the resource and distribution of VA mycorrhizal fungi of common plants in Yili, Xinjiang Uygur Autonomous region. In this paper, Soil samples were collected from fields in which various plants,the soil pH and phosphorus contents were detected, and studied the diversity, richness and relative abundance of VA mycorrhizal fungi species and mycorrhizal plant species in the wild plants and common plants.Considering its division of improcing the droughe-resistence effect after 11isolates of VA includes. And test the five kinds of the physiological indexes of drought-resistence. Main research results are as follows:1. VA mycorrhizal fungi Diversity in Yili16 species under 3 genera were collected from 7 kinds of common plants (Populus pruinosa Schrenk,Salix iliensis Regel,Picea schrenkiana Fisch,Calligonum pumilum,Ulmus pumila L,Fraxinus sogdiana Bung,Robinia pseudoacacia L.) in Yili, Xinjiang Uygur Autonomous Region, including 2 unidentified species. They are Glomus Leptotichum, G.caledonium, G.constrictum, G.geosporum, G.mosseae, G. monosporum, G.albidum, G.claroideum, G. intraradices, G. deserticola, G. reticulatum, Acaulospora foveata, A.mellea, Gigaspora gigantean. 2 genera 7 species of VA mycorrhizal fungi were identified by studying the VA fungi of 8 wild plants (Juglans cathayensis Dode,Malus sieversii Roem,Armeniaca vulgaris Lam,Crataegus cuneata Sieb.,Prunus domestica L.,Prunus divaricata Ldb,Fraxinus sogdiana Bung,Fraxinus sogdiana Bung) in Yili region of Xinjiang, which are Acaulospora elegans Gerdemann & Trappe, Acaulospora mellea Spain & Schenck, Glomus caledonium, Glomus constrictum, Glomus geosporum, Glomus formosanum , Glomus albidum.2. The frequentnes and dominant genus of VA mycorrhizal fungi Association in YiliThe same host plant can be symbiosis with different AM fungi, and different host plants can be symbiosis with the same VA mycorrhiza fungus, with a different frequentness of population appearance. Glomus is the dominant genus, and Glomus constricum, Glomus geosporum are the most common species. The same host plant can be symbiosis with different VA mycorrhizal fungi, and different host plants can be symbiosis with the same VA mycorrhizal fungi, with a different frequentness of population appearance.