丛枝菌根真菌接种对羊草抗旱性的影响  

The effect of arbuscular mycorrhiza fungi on drought resistance of Leymus chinensis

作　　者：贾振宇[1] 于洁[1] 德英[2] 武自念[2] 穆怀彬[2] JIA Zhenyu YU Jie DE Ying WU Zinian MU Huaibin(Institute Grassland Research of CAAS/Key laboratory of grassland Resources and Utilization, Ministry of Agriculture, Hohhot 010010, China College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China)

机构地区：[1]内蒙古农业大学草原与资源环境学院,呼和浩特010019 [2]中国农业科学院草原研究所/农业部牧草资源与利用重点实验室,呼和浩特010010

出　　处：《干旱区资源与环境》2017年第1期132-136,共5页Journal of Arid Land Resources and Environment

基　　金：基金项目:奶牛营养调控与粗饲料高效利用关键技术(2012BAD12B02);城市污泥在沙化治理中对牧草种植的影响(2012MS0427)资助

摘　　要：为了探寻丛枝菌根真菌(Arbuscular Mycorrhiza Fungi,AMF)对羊草抗旱性的作用效果,采用盆栽试验研究了干旱胁迫条件下摩西球囊霉(Glomus mosseae)、地表多抱囊霉(Dive.versiforme)及两者混合接种对羊草抗旱性的影响。结果表明:三种方式AMF的侵染率分别为17%、56%、50%;相较于未接种的植株,三个处理干旱胁迫下生物量分别增加了0.85、1.77、7.63倍;生长速度分别增加了9.5、13.9、9.9倍;脯氨酸、可溶性糖含量干旱胁迫下显著高于未接种处理,丙二醛含量显著低于未接种处理。综合评估处理间抗旱性的强弱排序为:地表多抱囊霉接种>混合接种>摩西球囊霉接种。To explore the role of Arbuscular mycorrhizal fungi （AMF） on the drought resistance of Leymus chinensis, pot experiments with AMF treatments were conducted under the condition of drought stress ： inoculating with Glomus mosseae or Dive. Versiforme, or both. The results showed that the infection rates of the above treatments were 17%, 56% and 50%, respectively. Compared with the control, the weight of three treatments under drought stress increased by 0. 85, 1.77 and 7.63 times and the growth rate increased by 9.5, 13.9 and 9.9 times. Furthermore, the content of proline and soluble sugar increased significantly, but the malondialdehyde （MDA） content decreased significantly. The comprehensive order （high to low） of the drought resistance was： Dive. versiforme, the mixture, Glomus mosseae.

关 键 词：AMF 羊草 抗旱性 

分 类 号：Q948.112.3[生物学—植物学] Q949.32