干旱区生态环境知识资源中心(Arid): 蒙古沙冬青AM真菌分子特征研究

Arid

	蒙古沙冬青AM真菌分子特征研究
其他题名	Genetic characteristics of AM fungi in rhizosphere of Ammopiptanthus mongolicus
	王坤; 解琳琳; 成斌; 贺学礼
来源期刊	河北农业大学学报
ISSN	1000-1573
出版年	2016
卷号	39 期号:6 页码:26-31
中文摘要	为了揭示蒙古沙冬青根围土壤AM真菌遗传多样性以及环境对AM真菌遗传特征的影响,为AM真菌形态学分类提供依据,选取内蒙古地区乌海、阿拉善、磴口、乌拉特后旗等4个样地,结合孢子形态鉴定和分子克隆方法研究了样地间AM真菌分子特征及其差异性,并比较了荒漠、农田、人工繁育和森林等4种不同生态系统中摩西管柄囊霉(Funneliformis mosseae)的遗传距离差异。结果表明:不同样地条件下,蒙古沙冬青根围土壤同种AM真菌种内遗传变异小,4个样地共有的AM真菌遗传相似度较高。内蒙古荒漠系统F.mosseae遗传距离显著小于其他生态环境F.mosseae的遗传距离,环境差异能够影响AM真菌遗传多样性。系统发育分析显示,F.mosseae与管柄囊霉属更为近缘,同意将其归入管柄囊霉属(Funneliformis)。
英文摘要	AM fungi have been known to establish mutually beneficial symbiosis with the host plants as a kind of obligate symbionts fungi and play an important role in enhancing soil structure stability,controlling soil erosion,inhibiting sand dust storms,and maintaining the healthy development of the plant in desert ecosystem.Ammopiptanthus mongolicus is an excellent sand-fixing and endangered plant that can not only well stand up to desert environment,but also maintain the balance and stability of desert ecosystem.In order to elucidate the genetic diversity of AM fungi in rhizosphere of A.mongolicus,molecular characterization of AM fungi in four sampling sites from Inner Mongolia desert were researched by morphological identification and molecular cloning.The genetic distances of Funneliformis mosseae were measured in desert,cropland,artificial breeding area and forest ecosystem.The results showed that intraspecific genetic variation of allogenic AM fungi was similar in A.mongolicus,and the genetic similarity of common AM fungi was high in four sampling sites.The genetic distance of F.mosseaein Inner Mongolia desert was different with that in other types of land.The relationship between F.mosseae and F.geosporum was close by phylogenetic analysis.The paper described that environmental distinction had significant effects on the genetic diversity of AM fungi and provided evidence for taxonomy of F.mosseae.
中文关键词	蒙古沙冬青 ; AM真菌 ; 遗传多样性
英文关键词	Ammopiptanthus mongolicus AM fungi genetic diversity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ANTHROPOLOGY
WOS研究方向	Anthropology
CSCD记录号	CSCD:5910681
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234468
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	王坤,解琳琳,成斌,等. 蒙古沙冬青AM真菌分子特征研究[J],2016,39(6):26-31.
APA	王坤,解琳琳,成斌,&贺学礼.(2016).蒙古沙冬青AM真菌分子特征研究.河北农业大学学报,39(6),26-31.
MLA	王坤,et al."蒙古沙冬青AM真菌分子特征研究".河北农业大学学报 39.6(2016):26-31.