Endophytic Chaetomium globosum enhances maize seedling copper stress tolerance.
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.
Department of Botany, Faculty of Science at Qena, South Valley University, Qena, Egypt.
M F
MF
Abou Alhamed
Department of Botany, Faculty of Science at Qena, South Valley University, Qena, Egypt.
Y M
YM
Shebany
D000222:Adaptation, Physiological / Q000187:drug effects*; D000975:Antioxidants / Q000378:metabolism; D018533:Biomass; D002597:Chaetomium / Q000187:drug effects / Q000502:physiology*; D003300:Copper / Q000633:toxicity*; D019327:Copper Sulfate / Q000633:toxicity; D060026:Endophytes / Q000187:drug effects / Q000502:physiology*; D008315:Malondialdehyde / Q000378:metabolism; D009995:Osmosis / Q000187:drug effects; D036226:Seedlings / Q000187:drug effects / Q000502:physiology*; D013312:Stress, Physiological / Q000187:drug effects*; D003313:Zea mays / Q000187:drug effects / Q000201:enzymology / Q000502:physiology*
D000975:Antioxidants; D008315:Malondialdehyde; D003300:Copper; D019327:Copper Sulfate