[1]王艺,丁贵杰.干旱胁迫对马尾松菌根化苗木生长的影响[J].森林与环境学报,2016,36(02):173-179.[doi:10.13324/j.cnki.jfcf.2016.02.008]
 WANG Yi,DING Guijie.Effects of drought stress on mycorrhizal seedlings growth of Pinus massoniana[J].,2016,36(02):173-179.[doi:10.13324/j.cnki.jfcf.2016.02.008]
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干旱胁迫对马尾松菌根化苗木生长的影响()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年02期
页码:
173-179
栏目:
出版日期:
2016-04-15

文章信息/Info

Title:
Effects of drought stress on mycorrhizal seedlings growth of Pinus massoniana
作者:
王艺12 丁贵杰1
1. 贵州大学林学院, 贵州贵阳 550025;
2. 贵州民族大学化学与环境科学学院, 贵州贵阳 550025
Author(s):
WANG Yi12 DING Guijie1
1. College of Forestry, Guizhou University, Guiyang, Guizhou 550025, China;
2. College of Chemistry and Envirenmental Science, Guizhou Minzu University, Guiyang, Guizhou 550025, China
关键词:
马尾松外生菌根真菌生长形态干旱胁迫
Keywords:
Pinus massoniana Lamb.ectomycorrhizal fungigrowth morphologydrought stress
分类号:
S718
DOI:
10.13324/j.cnki.jfcf.2016.02.008
摘要:
为了研究干旱胁迫下,不同菌根化苗木在生长形态方面的抗旱作用。以接种5种外生菌根真菌的马尾松苗木为材料,在温室内采用盆栽方法人工模拟自然干旱。结果表明:干旱胁迫下,外生菌根真菌能促进苗木的高、地径、根系生长及生物量积累,且不同菌种、相对含水量以及菌种与含水量间交互项均差异极显著(P<0.01)。中度胁迫时,接种土生空团菌苗木的高和地径生长最好,比对照分别增加了27.8%和52.9%;不同胁迫条件下,均以接种褐环乳牛肝菌1的苗木生物量积累最大,较对照增加了230%;干旱胁迫下,菌根菌能促进苗木地上和地下部分生长,尤其对根系作用明显,使菌根化苗木的根冠比显著高于对照,但不同菌种对宿主的亲和力大小有差异,且苗木对各菌根菌的依赖性也不相同。
Abstract:
In order to investigate the drought tolerance of different mycorrhizal seedlings in growth morphology under drought stress,potted Pinus massoniana Lamb. seedlings inoculated with 5 sorts of ectomycorrhizal fungi were stressed in the artificial simulated drought in greenhouse. The results showed as follows. Ectomycorrhizal fungi significantly promoted the growth and biomass accumulation of height,ground diameter and roots of P. massoniana seedlings under drought stress. And there were extremely significant differences (P<0.01) between fungus sorts,relative water contents and interactions of fungus sorts-water contents. Under the moderate stress, the seedlings inoculated with Cenococcum geophilum grew best in height and ground diameter and increased by 27.8% and 52.9% respectively compared to the control group. Under different conditions of stress,the seedlings inoculated with Suillus luteus had the largest biomass accumulation and increased by 230% compared to the control. Therefore,under drought stress,ectomycorrhizal fungi could significantly promote the growth of aboveground and underground parts in seedlings especially for the roots,causing the root-shoot ratio of mycorrhizal seedlings significantly higher than the control. But there were differences in affinity between various mycorrhizal fungi and host and the dependence of seedlings to various ectomycorrhizal fungi was different.

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备注/Memo

备注/Memo:
收稿日期:2015-07-03;改回日期:2015-10-26。
基金项目:国家青年科学基金项目(31400537);国家科技支撑课题(2015BAD09B0102);贵州省科学技术基金项目(黔科合J字[2013]2143号);贵州民族大学引进人才科研项目(校引才科研2013007)。
作者简介:王艺(1985-),女,副教授,博士,从事苗木逆境生理研究。E-mail:2003wangyi@163.com。
通讯作者:丁贵杰(1960-),男,教授,从事森林培育研究。E-mail:gjdinggzu@126.com。
更新日期/Last Update: 1900-01-01