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Endophytic Chaetomium globosum enhances maize seedling copper stress tolerance
Author(s) -
Abou Alhamed M. F.,
Shebany Y. M.
Publication year - 2012
Publication title -
plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 1435-8603
DOI - 10.1111/j.1438-8677.2012.00608.x
Subject(s) - chaetomium globosum , seedling , lipid peroxidation , biology , antioxidant , copper toxicity , dry weight , copper , chaetomium , scavenger , osmotic shock , botany , horticulture , agronomy , food science , biochemistry , chemistry , organic chemistry , penicillium , gene
This study aims at characterisation of the impact of Chaetomium globosum on copper stress resistance of maize seedlings. Higher levels of copper treatment decreased maize dry weight and induced a marked increase in osmotic solutes, antioxidant enzyme activity and the level of lipid peroxidation. On the other hand, addition of the endophytic C. globosum alleviated the toxic effect of copper on maize growth. The combination of copper sulphate and Chaetomium increased seedling dry weight, osmotic solute content and antioxidant enzyme activity compared to copper sulphate alone, while lipid peroxidation levels were also decreased. The fungal scavenger system might be important for supporting the ability of maize seedlings to resist copper toxicity.