Department of Botany, Faculty of Science at Qena, South Valley University, Qena, Egypt.
Plant Biol (Stuttg). 2012 Sep;14(5):859-63. doi: 10.1111/j.1438-8677.2012.00608.x. Epub 2012 Jun 5.
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.
本研究旨在研究卷枝毛霉对玉米幼苗铜胁迫抗性的影响。较高水平的铜处理降低了玉米的干重，并显著增加了渗透溶质、抗氧化酶活性和脂质过氧化水平。另一方面，内生卷枝毛霉的添加缓解了铜对玉米生长的毒害作用。与单独使用硫酸铜相比，硫酸铜和卷枝毛霉的组合增加了幼苗的干重、渗透溶质含量和抗氧化酶活性，同时降低了脂质过氧化水平。真菌清除系统可能对支持玉米幼苗抵抗铜毒性的能力很重要。
