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• 方法与技术 • 上一篇    

金银花根围AM真菌与土壤环境的典型相关分析

马寨璞**,谷中如,井爱芹,贺学礼   

  1. (河北大学生命科学学院, 河北保定 071002)
  • 出版日期:2013-09-10 发布日期:2013-09-10

Arbuscular mycorrhizal fungi in Lonicera japonica rhizosphere and their correlations with soil environment: A canonical correlation analysis.

MA Zhai-pu**, GU Zhong-ru, JING Ai-qin, HE Xue-li   

  1. (College of Life Science, Hebei University, Baoding 071002, Hebei, China)
  • Online:2013-09-10 Published:2013-09-10

摘要: 根据2010年7月—2011年6月采自河北省安国市金银花根围0~30 cm土壤样品数据,运用典型相关分析,研究了金银花根围AM真菌、球囊霉素、土壤环境三者之间的相关关系。结果表明:AM真菌与土壤环境之间的典型相关性以土层因素与泡囊定殖率之间最密切(r=0.89),球囊霉素与土壤环境之间的典型相关主要表现在总球囊霉素与有机碳之间(r=0.87),AM真菌与球囊霉素之间的典型相关主要表现在总球囊霉素与孢子密度之间(r=0.85);土层与泡囊定殖率、孢子密度和总球囊霉素呈显著负相关;土壤全氮与外生菌丝定殖率呈显著正相关,但与丛枝菌丝定殖率呈显著负相关;另外,球囊霉素与孢子密度和菌丝定殖率呈显著正相关;其中总球囊霉素与泡囊定殖率呈显著正相关,表明球囊霉素可能储存于泡囊中。

Abstract: From July 2010 to June 2011, twelve soil samples were monthly collected from 0-10, 10-20 and 20-30 cm depths of Lonicera japonica rhizosphere in Anguo City, Hebei Province of China, with the correlations between arbuscular mycorrhizal (AM) fungi, glomalin, and soil environment studied by using canonical correlation analysis (CCA). It was found that the correlation between soil layer and vesicular colonization could best explain the canonical correlation of AM fungi and soil environment (r=0.89). The canonical correlation between AM fungi and soil environment was mainly presented in the correlation between the total glomalin concentration and the organic C content in soil (r=0.87); whereas the canonical correlation between AM fungi and glomalin was mainly reflected as the correlation between spore density and total glomalin (r=0.85). The further analysis indicated that soil layer had significant negative correlations with vesicular colonization, spore density, and total glomalin. The soil total nitrogen was significantly and positively correlated with the colonization of exogenous hyphae, but negatively correlated with the colonization of arbuscular hyphae. In addition, both spore density and hyphae colonization had significant positive correlations with glomalin, and total glomalin was significantly positively correlated with vesicular colonization, indicating that glomalin could be generated from vesicles.