干旱区生态环境知识资源中心(Arid): 新疆沙冬青AM和DSE真菌的空间分布

Arid

	新疆沙冬青AM和DSE真菌的空间分布
其他题名	Spatial distribution of AM and DSE fungi in the rhizosphere of Ammopiptanthus nanus
	姜桥; 贺学礼; 陈伟燕; 张玉洁; 荣心瑞; 王雷
来源期刊	生态学报
ISSN	1000-0933
出版年	2014
卷号	34 期号:11 页码:2929-2937
中文摘要	2012年6月从新疆阿图什市选取康苏、膘尔托阔依(阳)、膘尔托阔依(阴)和上阿图什4个样地,采集新疆沙冬青(Ammopiptanthus nanus)根围010、1020、2030、3040和4050cm5个土层土壤样品,研究了新疆沙冬青AM和DSE真菌定殖规律以及土壤因子的生态作用。结果表明,AM和DSE真菌平均总定殖率分别为83.2%和53.22%,说明AM和DSE真菌能与新疆沙冬青根系形成良好共生关系。AM和DSE 真菌具有明显空间异质性,AM 总定殖率最大值在2030cm 土层,样地间表现为康苏= 上阿图什>膘尔托阔依(阳)>膘尔托阔依(阴);DSE 土层间无规律性变化,样地间为膘尔托阔依(阳)>膘尔托阔依(阴)>康苏>上阿图什。相关性分析表明,AM 菌丝、泡囊和总定殖率与DSE 定殖率极显著负相关,AM 定殖强度与DSE 菌丝和总定殖率显著负相关,丛枝定殖率与DSE 菌丝和总定殖率极显著正相关,说明两者间存在生态位竞争。土壤速效P、总球囊霉素和酸性磷酸酶与AM 总定殖率极显著正相关,pH 与AM 总定殖率显著负相关;脲酶与DSE 极显著正相关,pH和碱解N与DSE显著负相关。
英文摘要	Ammopiptanthus nanus is the only endangered evergreen broadleaf shrub endemic to the deserts and plays all vital roles,which is thought to be the prefect plant at improving arid desert area and in putting off desertification. To elucidate the colonization rule of AM and DSE fungi and the ecological function of soil factors on Ammopiptanthus nanus,The paper studied the ecological distribution of AM and DSE fungi,and symbiosis with Ammopiptanthus nanus. We sampled from four different sites including Kang Su,Biao Ertuokuoyi (yang),Biao Ertuokuoyi (yin) and Shang Etushi in XinJiang in June 2012. Soil samples were collected from the rhizosphere of Ammopiptanthus nanus,and were divided into five depth intervals,010,1020,2030,3040 and 4050 cm respectively. The results indicated that the average total colonizations of AM and DSE fungi were 83. 2% and 53. 22% respectively. AM and DSE fungi could establish well symbiosis with the roots of Ammopiptanthus nanus. Ammopiptanthus nanus could be highly infected by AM fungi and form a classical type of arbuscular mycorrhizal,most of which is arum type (A-type). The spatial distribution of AM and DSE fungi had significant spatial differences. The total colonization of AM fungi in Kang Su and Shang Etushi was highest and reached the peak at the 2030 cm layer. There were no significant differences in the total colonization of DSE among different soil layers. However,it was higher in Biao Ertuokuoyi(yang) than that in the other three sites. and it was the lowest in Shang Etushi. The relativity of analysis showed that the colonizations of hyphened,Vesicular colonization and total colonizations of AM fungi had significantly negative correlations with each structures of DSE,such as hypha,microsclerotia and total colonizations. The hypha and total colonizations of DSE had negative correlations with the colonization intensity of AM fungi,and extreme positive correlations with arbuscule colonization. That showed the presence of niche competition between AM and DSE fungi. The infecting of AM and DSE fungi were significantly affected by soil factors. The total colonizations of AM fungi were extreme positive correlations with available P,TG (total glomalin) and acid phosphatase, significant positive correlations with soil urease,and significant negative correlations with soil pH. The hypha colonization were extreme positive correlations with soil urease,TG and acid phosphatase,and significant positive correlations with organic matter and available P. The vesicular colonization was extreme positive correlations with acid phosphatase. The arbuscule colonization was extreme positive correlations with TG,but extreme negative correlations with soil pH,and significant negative correlations with alkaline phosphatase. There were extreme positive correlations between the hypha colonization of DSE and soil urease,and extreme negative correlations between hypha colonization and available N and soil pH. The total colonizations were extreme positive correlations with soil urease,and extreme negative correlations with soil pH,and significant negative correlations with available N. The microsclerotia correlations were extreme positive correlations with available N,TG and acid phosphatase,and significant positive correlations with soil urease. The study provided basis for making good full use of AM and DSE fungi resources to promote the growth of host plant and vegetation restoration on desert sand.
中文关键词	AM 真菌 ; 深色有隔内生真菌 ; 生态分布 ; 新疆沙冬青
英文关键词	AM fungi dark septate endophyte (DSE) ecological distribution Ammopiptanthus nanus
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5167002
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231585
作者单位	河北大学生命科学学院, 保定, 河北 071002, 中国
推荐引用方式 GB/T 7714	姜桥,贺学礼,陈伟燕,等. 新疆沙冬青AM和DSE真菌的空间分布[J],2014,34(11):2929-2937.
APA	姜桥,贺学礼,陈伟燕,张玉洁,荣心瑞,&王雷.(2014).新疆沙冬青AM和DSE真菌的空间分布.生态学报,34(11),2929-2937.
MLA	姜桥,et al."新疆沙冬青AM和DSE真菌的空间分布".生态学报 34.11(2014):2929-2937.