VA菌根真菌元素分析的初步研究

THE PRELIMINARY STUDY ON ELEMENTAL ANALYSIS OF VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGI

本文分析了VA菌根真菌二个属——Glomus(球孢内囊霉属)和Sclerocystis(硬内囊霉属)不同种的孢子或孢子果中N、C的百分数含量及比值,发现同一个种的VA菌根真菌虽然寄主不同,来源的地点各异,但孢子或孢子果中N、C含量及比值基本相同,只是培养时间长短对分析结果有影响。同一属的不同种的孢子中N、C含量及比值有差异,不同属差异尤为明显。我们认为孢子或孢子果中N、C含量及比值似可作为分类、鉴定中的一项辅助指标。

The percent of N and C composition in spores or sporocarps of different species of two genera of VA mycorrhizal fungi—Gloraus and Sclerocystis were analysed. It was found that culture period effects the percent of N,C and their ratio, although the influences of host and origin of strain of fungi on those appeared to be low. N,C percentage and their ratio in spores or sporocarps were variable among fungal species of a same genus, but difference between two genera was significantly. This technology may serve as a supplementary indicator for classification and identification of VA mycorrhizal fungi.