不同生长环境对黄芪叶绿体超微结构的影响

Effect of Different Growth Environment on the Chloroplasts Ultrastructure of Astragalus

选用蒙古黄芪(Astragalus membranaeus(Fisch)Bge.Var.Mongh-oicus(Bge)Hisao)和膜荚黄芪(Astragalus membranaceus(Fisch)Bge.)种子在不同的环境中进行种植,观察内生真菌、盐碱胁迫以及遮光处理对黄芪叶绿体超微结构的影响。结果表明:内生真菌处理组叶绿体和类囊体形态结构完整;盐碱胁迫处理组,蒙古黄芪叶绿体类囊体受损,基粒片层溶解,淀粉粒数量增多、直径增大。遮光处理组膜荚黄芪类囊体、基粒片层溶解,淀粉粒大量出现。蒙古黄芪栽培在透光率较低处,膜荚黄芪生长于盐碱处对其生长影响较小。黄芪栽培过程中,适当加以内生真菌菌液,有利于黄芪的生长。

With Astragalus membranaeus（ Fisch） Bge. Var. mongholicus（ Bge） Hisao and Astragalus membranaceus（ Fisch）Bge. seeds in different planting,we studied the effects of endophytic fungi,salt stress and cover light treatment on Astragalus chloroplast ultrastructure. The results showed that endophytic fungi group,chloroplast and thylakoid morphology robust.In the salt stress treatment group,A. membranaeus chloroplast thylakoid was damaged,grana lamellae was dissolved,the number of starch grains was increased,and the diameter was increased. In the shading treatment group,A. membranaeus thylakoid grana lamellae was dissolved,and many starch grains appeared. When A. membranaeus cultivation was in the lower light transmittance,A. membranaeus growth in salt had little effect on the growth of the department. The proper cultivation of the endophytic fungus is beneficial to the growth of Astragalus.