| 生物土壤与生态 |
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| Effects of Salinity on the Contents of Osmotica of Three Desert Plants |
| ZHANG You-fu1,2, CHEN Tuo1, FEI Guan-qing3, ZHANG Man-xiao1, AN Li-zhe1,3 |
| 1.Cold and Arid Region Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Agronomy College, Henan University of Science and Technology, Luoyang 471003, Henan, China;3.School of Life Science, Lanzhou University, Lanzhou 730000, China |
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Abstract Kalidium foliatum (Pall.) Moq, Apocynum venetum L. and Lycium ruthenicum Murr grew in different salted biotope of Hexi corridor, Gansu, were studied. Results showed that there were higher Na+/K+ ratios and total content of Na+and K+ of leaves on Kalidium foliatum (Pall.) Moq than those on Apocynum venetum L. and Lycium ruthenicum. With soil salty content increasing, the Na+, K+-ATPase activity of leaves on Kalidium foliatum (Pall.) Moq became higher, however the activity of leaves on Apocynum venetum L. and Lycium ruthenicum Murr became lower; accumulation of proline and soluble sugar of leaves on Kalidium foliatum (Pall.) Moq increased, however the variation trend of proline and soluble sugar of leaves on Apocynum venetum L. and Lycium ruthenicum Murr was not identical. So there was osmotic adjustment ability and higher salty-tolerance in Kalidium foliatum (Pall.) Moq than those in Apocynum venetum L. and Lycium ruthenicum Murr.
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Received: 13 June 2006
Published: 20 September 2007
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2007, Vol. 27 
