Root Morphology and Organic Solute Responses of Salt-stressed Trifoliate Orange Seedlings to Arbuscular Mycorrhizal Fungi
Arbuscular mycorrhizal fungi (AMF) are often found in saline soils and can protect agricultural stability. The present research tried to evaluate the effects of arbuscular mycorrhizal fungi (Glomus mosseae and G. versiforme) on root morphology and organic solutes of trifoliate orange (Poncirus trifoliata) seedlings exposed to 0 and 100 mM NaCI. Forty-nine days after salinity treatment, mycorrhizal colonization was notably inhibited. AMF colonization significantly increased total root length, total root projected area, total root surface area, total root volume and average root diameter, as compared to non-AMF control. Inoculated seedlings with AMF exhibited notably higher contents of sucrose, glucose, fructose and proline in roots under 0 and 100 mM NaCI conditions, when compared to un-inoculated seedlings. These results imply that mycorrhizal seedlings possessed higher organic solutes and greater root morphology to alleviate salt damage. G. mosseae exhibited more efficiently under salinity stress than G. versiforme.
arbuscular mycorrhiza proline root morphology salt stress sugar trifoliate orange
Ying-Ning Zou Qiang-Sheng Wu
College of Horticulture and Gardening, Yangtze University
国际会议
The 2nd Conference on Horticulture Science and Technology(第二届园艺科学与技术学术会议 CHST 2010)
北京
英文
17-20
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）