Abdel Latef, A. A. (2013). Growth and Some Physiological Activities of Pepper (Capsicum annuum L.) in Response to Cadmium Stress and Mycorrhizal Symbiosis. , 15(7), 1437-1448.
A. A. Abdel Latef. "Growth and Some Physiological Activities of Pepper (Capsicum annuum L.) in Response to Cadmium Stress and Mycorrhizal Symbiosis". , 15, 7, 2013, 1437-1448.
Abdel Latef, A. A. (2013). 'Growth and Some Physiological Activities of Pepper (Capsicum annuum L.) in Response to Cadmium Stress and Mycorrhizal Symbiosis', , 15(7), pp. 1437-1448.
Abdel Latef, A. A. Growth and Some Physiological Activities of Pepper (Capsicum annuum L.) in Response to Cadmium Stress and Mycorrhizal Symbiosis. , 2013; 15(7): 1437-1448.

Growth and Some Physiological Activities of Pepper (Capsicum annuum L.) in Response to Cadmium Stress and Mycorrhizal Symbiosis

Journal of Agricultural Science and Technology
Article 13, Volume 15, Issue 7, 2013, Pages 1437-1448    PDF (157.57 K)
Author
A. A. Abdel Latef*
Department of Botany, Faculty of Science, South Valley University, 83523 Qena, Egypt.
Abstract
A greenhouse experiment was conducted to investigate the effects of mycorrhial fungus (Glomus mosseae) on cadmium (Cd) toxicity in pepper (Capsicum annuum L. cv. Zhongjiao 105) plants. Half of plants were inoculated with arbuscular mycorrhizal fungi (AMF). Cd was supplied in the form of cadmium chloride at 0.0, 0.1 and 0.5 mM through irrigation water in the soil. Mycorrhizal colonization was higher in the control than in cadmium-treated soil. Dry weights of root and shoot of mycorrhizal (M) plants were higher than non mycorrhizal (NM) ones in both control and cadmium treatments. Measurements of Cd concentration indicated that M plants immobilized more Cd in the root and partitioned less Cd to the shoots. Cd decreased the leaf chlorophyll content, total sugar and total protein contents, and the concentrations of phosphorous and magnesium. M plants had greater contents of chlorophyll, total sugar, total protein and P and Mg concentrations than NM plants. Moreover, increasing the Cd concentration caused an increase in malondialdehyde (MDA) content in leaves of pepper plants; however, M plants showed a lower MDA content than NM plants. Cd decreased the activity of superoxide dismutase (SOD) in leaves of NM and M plants, on the other hand, it increased the activity of peroxidase (POD) and ascorbate peroxidase (APX) in leaves of NM and M plants. APX was stimulated more than POD in M plants versus NM plants, suggesting that APX is a major player in H2O2-scavenging in M plants. The study suggests that mycorrhization with G. mosseae can be a suitable way to induce Cd-stress resistance in pepper plants.
Keywords
Ascorbate peroxidase; Chlorophyll; Glomus mosseae; Heavy metals; Root colonization
References
Statistics
Article View: 153
PDF Download: 94
Statistics
Number of Journals45
Number of Issues2,171
Number of Articles24,674
Article View24,460,696
PDF Download17,559,827