干旱区生态环境知识资源中心(Arid): 荒漠环境柠条锦鸡儿AM真菌空间分布

Arid

	荒漠环境柠条锦鸡儿AM真菌空间分布
其他题名	Spatial distribution of arbuscular mycorrhizal fungi of Caragana korshinskii in desert environment
	吴艳清; 贺学礼; 刘沺沺
ISSN	1000-1573
出版年	2008
卷号	31 期号:4 页码:36-40
中文摘要	为充分利用AM真菌资源,对陕西省榆林市沙生植物园、鄂尔多斯生态研究站和宁夏回族自治区沙坡头3个不同生态条件下柠条锦鸡儿(Caragana korshinskii)AM真菌空间分布进行了研究.结果表明,柠条锦鸡儿菌根类型为Ⅰ-型(Intermediate type),泡囊形态多样,形成于细胞间或细胞内,丛枝结构包括树枝状和花椰菜状2种类型.在形成丛枝菌根的同时,柠条锦鸡儿根部也能普遍被暗色有隔内生真菌感染.AM真菌定殖率和孢子密度与样地生态条件密切相关.最大孢子密度发生在0～10cm土层,并随土层加深呈下降趋势,孢子密度与土壤速效N、有机质、脲酶和蛋白酶呈极显著正相关,泡囊定殖率与速效P含量呈显著正相关,丛枝定殖率与土壤pH呈显著正相关.孢子密度、泡囊和丛枝定殖率可作为检测土壤环境状况的指标.
英文摘要	The arbuscular mycorrhizal type and AM fungal ecological distribution of Caragana kor- shinskii in three representative sites of Shaanxi Yulin Rare Sandy-plants conversation field,the Or- dos sandy land ecological station and Ningxia Shapotou were studied.The results showed that my- corrhiza[ type was intermediate type and vesicluar in intercellular and intraeellular with morphologi- cal variety.The structure of arbuscular included tree and cauliflower-shaped.The roots of C.kor- shinskii were also infected with dark septate endophytic fungi.Different sample sites had signifi- cantly affected spore density and the percentage of colonization of vesicle and arbuscule of AM fungi. The spore density at 0-10 cm depth was maximal and decreased with soil depth.There existed sig- nificant positive correlation with soil available N,organic matter,urease and proteinase.There ex- isted significant positive correlation between vesicular colonization and soil P.There existed signifi- cant positive correlation between arbuscular colonization and soil pH.The results suggested that spore density,vesicular and arbuscular colonization were useful indictors for microcosmic monitoring and evaluating soil environment.
中文关键词	AM真菌 ; 空间分布 ; 暗色有隔内生真菌 ; 柠条锦鸡儿 ; 荒漠环境
英文关键词	AM fungi spatial distribution dark septate endophytic fungi Caragana korshinskii desert environment
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3343865
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222516
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	吴艳清,贺学礼,刘沺沺. 荒漠环境柠条锦鸡儿AM真菌空间分布[J],2008,31(4):36-40.
APA	吴艳清,贺学礼,&刘沺沺.(2008).荒漠环境柠条锦鸡儿AM真菌空间分布.,31(4),36-40.
MLA	吴艳清,et al."荒漠环境柠条锦鸡儿AM真菌空间分布".31.4(2008):36-40.