不同盐度样地羊草丛枝菌根真菌侵染状况比较

北方农业学报 ›› 2014, Vol. ›› Issue (4): 25-25.

不同盐度样地羊草丛枝菌根真菌侵染状况比较

岳英男

东北林业大学园林学院,黑龙江哈尔滨150040

出版日期:2014-08-20 发布日期:2014-08-20
通讯作者: 岳英男
作者简介:作者简介：岳英男（1990-），女（满族），吉林长春人，东北林业大学硕士研究生，主要从事植物逆境生物学方面的研究。

Comparison on the Colonization of Leymus chinense Arbuscular Mycorrhizal in Different Salinities

YUE Ying-nan （College of Landscape Architecture, Northeast Forestry University, Harbin 150040,China）

Online:2014-08-20 Published:2014-08-20

摘要/Abstract

摘要： 对松嫩盐碱草地的羊草（Leymus chinense）和丛枝菌根（Arbuscular mycorrhizal,AM）真菌之间的关系进行了调查,分别采集了轻、中、重三个盐度样地的羊草根系,Trypan-blue染色和制片后镜检丛枝、泡囊、菌丝等形态结构类型,计算出侵染率（%）、侵染强度（%）、从枝丰度（%）和泡囊丰度（%）。结果表明：所有盐度样地均能侵染成典型的AM真菌结构,中盐度样地的AM真菌侵染率、泡囊丰度和丛枝丰度均为三个盐度样地的最大值,达到了100%、31.78%和76.52%,重盐度样地的侵染率、侵染强度、泡囊丰度和丛枝丰度均为三个盐度样地的最小值,仅有90%、27.15%、16.90%和57.74%。同一盐度样地之间AM真菌的侵染状况也有显著性差异（P〈0.05）;轻盐度和中盐度的菌根类型是A-型,重盐度样地的菌根类型是P-型。

Abstract: The relationship between Leymus chinense and AM （arbuscular mycorrhizal） fungi in different salinities of Songnen alkaline grassland was investigated in this study, the roots of Leymus chinense from low salinity, middle salinity and high salinity were gathered respectively. Using microscopy techniques, arbuscular, vesicles,and other forms of mycorrhizal structure type were observed after Trypan-blue staining and producer. Results showed that AM fungi colonized all Leymus chinense in different salinitie, among which middle salinity got the highest colonization rate, infection intensity, vesicular abundance and arbuscular abundance of 100%,31.78% and 76.25%,while high salinity got the lowest colonization rate, infection intensity, vesicular abundance and arbuscular abundance of only 90%,27.15%,16.90% and 57.74%.There were also significant differences on the colonization of Leymus chinense arbuscular mycorrhizal in the same salinity （P〈0.05）. The AM type of Leymus chinense was A-type in low salinity and middle salinity, while the AM type of high salinity was P-type.

中图分类号:

Q948.113

岳英男. 不同盐度样地羊草丛枝菌根真菌侵染状况比较[J]. 北方农业学报, 2014, (4): 25-25.