Distribution of vesicular-arbuscular mycorrhizal fungi in the natural ecosystem

被引：7

作者：

Bhardwaj, S ^{[1
]}

Dudeja, SS ^{[1
]}

Khurana, AL ^{[1
]}

机构：

[1] HARYANA AGR UNIV,DEPT MICROBIOL,HISAR 125004,HARYANA,INDIA

来源：

FOLIA MICROBIOLOGICA | 1997年 / 42卷 / 06期

关键词：

D O I：

10.1007/BF02815471

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Natural occurrence of vesicular-arbuscular mycorrhizal (VAM) fungi in Haryana soils showed that VAM sporulation was more intensive in the rhizosphere of nonlegumes than of legumes. Maximum number of spores (342 spores per 50 g of soil) was observed in the rhizosphere of mustard, followed by chickpea, wheat, pearl millet and pigeonpea. Four VAM genera viz. Glomus, Gigaspora, Sclerocystis and Acaulospora, were present there. Soil pH, total soil P, available P, type of soil, soil moisture and cropping season all variables influenced the VA mycorrhizal population in the natural ecosystem. Numbers of VAM spores highly correlated with the presence of total soil P and soil pH indirectly affected the VAM population through the total soil P. The spore population was abundant in sandy soils as compared to loamy sands. Drier soils had higher number of VAM spores. In summer, the VAM population in soil was less as compared to winter season.

引用

页码：589 / 594

页数：6

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