Response of three arbuscular mycorrhizal fungi to simulated acid rain and aluminium stress

被引:21
作者
Vosátka, M [1 ]
Batkhuugyin, E [1 ]
Albrechtová, J [1 ]
机构
[1] Acad Sci Czech Republic, Inst Bot, CZ-25243 Pruhonice, Czech Republic
关键词
Acaulospora tuberculata; alkaline phosphatase; Deschampsia flexuosa; extraradical mycelium; Glomus fistulosum; Glomus mosseae; maize; NADH-diaphorase; Zea mays;
D O I
10.1023/A:1002125005497
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Simulated acid rain (SAR) combined with higher concentration of aluminium (SAR+Al) influenced the ecophysiology of three arbuscular mycorrhizal fungi (AMF) in both the germination and symbiotic phases of their life cycle, Acaulospora tuberculata, an isolate fi om the soil with low pH, exhibited a higher tolerance to environmental stress as compared to Glomus mosseae and G. fistulosum. This higher tolerance may be related to the edaphic conditions of soil of the isolate origin, The histochemical staining of the alkaline phosphatase and NADH-diaphorase activities in the extraradical mycelium (ERM) of the AMF proved to be more sensitive indication of negative effects of the SAR or SAR+Al stress compared to commonly measured parameters of the AMF such as mycorrhizal colonisation or growth of the ERM.
引用
收藏
页码:289 / 296
页数:8
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