NaCl胁迫对青稞幼苗部分生理指标的影响  

Effects of NaCl Stress on Some Physiological Indices in Hulless Barley Seedlings

作　　者：段辉国[1,2] 赵涛[1] 付伟丽[1] 曾晓芸[1] 谢兴伟[1] 易方舟[1] 

机构地区：[1]内江师范学院生命科学学院,四川内江641100 [2]特色农业资源研究与利用四川省高等学校重点实验室,四川内江641100

出　　处：《内江师范学院学报》2012年第6期42-44,共3页Journal of Neijiang Normal University

基　　金：四川省教育厅重点研究项目(09ZA054);内江师范学院生态学重点建设学科项目(内师科字[2007]24号)

摘　　要：以青稞幼苗为试材,采用营养液水培法研究了200mmol/L NaCl胁迫对青稞幼苗叶片相对含水量(RWC)、叶绿素、丙二醛(MDA)、脯氨酸含量的影响.结果显示,在200mmol/L NaCl胁迫2,4,6,8d后,青稞幼苗叶片相对含水量、叶绿素含量随胁迫的进行而不断下降,其中叶绿素含量在前4d下降尤其明显;MDA和脯氨酸含量则显著上升.表明200mmol/L NaCl胁迫对青稞幼苗造成了严重的生理伤害.Effects of 200mmol/L NaCl stress on the relative water content, chlorophyll, malondialdehyde （MDA）, proline contents was put under examination in hulless barley seedlings by means of nutrient solution culture. The results indicated that the relative water content （RWC） and chlorophyll content steadily sank down in hulless barley seedlings leaves at 2, 4, 6, 8d 200mmol/L NaCl stress, and chlorophyll content appeared a peak decrease after 4d stress. While the contents of MDA and proline went up strikingly. These results indicated that 200mmol/L NaCl stress had caused severe damage upon hulless barley seedlings.

关 键 词：NACL胁迫 青稞幼苗 生理指标 

分 类 号：Q945.78[生物学—植物学]