Studies on Change of Osmolytes in Lespedeza Michxunder Drought Stress

doi:10.3321/j.issn:1000-7091.2004.z1.010

Abstract

Abstract: Six species of Lespedeza Michx.were studied under drought stress,and five ideas inferred from the results:(1)Free proline had been badly affected under drought stress in Lespedeza Michx.,and this influence was different from the each species of Lespedeza Michx.(2)The accumulation of soluble sugar increased a little while soil moisture content declined from 75%～80% to 55%～60%,but increased rapidly while soil moisture content declined from 55%～60% to 35%～ 40%.(3)The content of soluble protein droped gradually under drought stress.(4)The content of heat stable protein increased while soil moisture content declined from 75%-80% to 55%～60%,but droped rapidly while soil moisture content declined from 55%～60% to 35%～40%.(5)we supposed that the accumulation of free proline,heat stable protein were related to the accumulation of soluble sugar.

Key words: Lespedeza Michx, drought stress, Proline, Soluble sugar, Soluble protein, Heat stable protein

CLC Number:

S727.222

DU Jin-you, CHEN Xiao-yang, GAO Qiong, HU Dong-nan, Chen Jia. Studies on Change of Osmolytes in Lespedeza Michxunder Drought Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(S1): 40-44. doi: 10.3321/j.issn:1000-7091.2004.z1.010.

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