摘要
酸性森林土壤广泛分布于热带和亚热带,铝毒现象普遍存在,是影响树木正常生长发育的重要原因之一。外生菌根真菌与树木根系形成共生体之后,显著提高植物的拮抗铝的能力。从铝对植物的毒害作用,外生菌根真菌提高树木抗铝的机理(包括菌丝的物理阻隔,改善营养状况,减少铝的吸收和上行运输,增加草酸分泌并产生铝的络合作用)等方面进行了综述。
Acidic forest soils are widespread in tropical and subtropical areas in the world.Aluminum（Al） harmfulness in those soils could be commonly found and considered as the important factor inhibiting the growth of trees.Symbionts between trees and ectomycorrhizal fungi show better ability of Al resistance.Al harmfulness to tree and the reasons for ectomycorrhzial fungi to improve the Al resistance of trees（including physical barrier of hyphae,nutritional improvement of trees,decrease in Al absorption and upward translocation in plants,increase in oxalate secretion and complexing action of Al by oxalate） are reviewed in this paper.
出处
《贵州农业科学》
CAS
北大核心
2011年第6期123-127,共5页
Guizhou Agricultural Sciences
基金
国家自然科学基金项目"钾调控外生菌根真菌草酸分泌的研究机理"(40771112)
关键词
外生菌根真菌
铝
草酸
ectomycorrhizal fungi
aluminum（Al）
oxalate
