荒漠灌木根际AM真菌动态分布研究(英文)

被引：5

作者：

贺学礼

Yosef Steinberger

Peter Herman

机构：

[1] 西北农林科技大学生命科学学院!陕西杨陵

[2] 以色列巴伊兰大学生命科学学院!Ramat-Gan

[3] 美国新墨西哥州立大学生物系!LasCruces

[4] NewMexico

来源：

西北农林科技大学学报(自然科学版) | 2001年 / 04期

关键词：

Zygophyllum dumosum Boiss; Hammada scoparia(Pomel)Iljin; AM真菌; 动态; 荒漠生态系统;

D O I：

10.13207/j.cnki.jnwafu.2001.04.007

中图分类号：

S718.81 [真菌];

学科分类号：

摘要：

系统研究了以色列荒漠地区两种灌木 Zygophyllum dumosum Boiss和 H ammada scoparia(Pom el) Iljin根际AM真菌动态分布。结果表明 ,季节变化和采样模式显著影响 AM真菌定殖程度。Zygophyllum dumosum的菌根最大定殖率发生在秋末 ,而 H ammada scoparia的菌根最大定殖率出现在冬初。 1999年 3月、8月和 2 0 0 0年 1月、4月菌根定殖率最低。菌丝是最丰富的菌根结构 ,干旱季节泡囊丰富 ,潮湿季节丛枝增加。土壤湿度与丛枝定殖率呈正相关 ,土壤有机质含量与菌丝、泡囊和总定殖率呈正相关。在评估荒漠生态系统时 ,菌根不同结构的定殖程度是一个十分有用的生态指标

引用

页码：24 / 28

页数：5

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