2009年4月、7月和10月分别在内蒙古农牧交错区元上都、黑城子和大河乡样地采集沙蒿(Artemisia sphaerocephala)根围土壤样品,利用形态学和微形态学特征分离鉴定沙蒿根围AM真菌种类,研究了AM真菌物种多样性.共分离鉴定出AM真菌3属20种,其中盾巨孢囊霉属(Scutellospora)2种,无梗囊霉属(Acaulospora)4种,球囊霉属(Glomus) 14种.3属AM真菌在3个样地均有分布.3个样地共同优势种是黑球囊霉(G.melanosporum)和网状球囊霉(G.reticulatum).AM真菌物种丰度、香浓-威纳指数和均匀度在时间上表现为4月＜7月＜10月,空间上表现为元上都＜黑城子＜大河乡.扫描电镜下不同属种孢子表面纹饰特征差异明显,可作为AM真菌分类的参考依据.
[1] 刘洪来, 王艺萌, 窦潇, 徐敏云, 王堃, LIU Hong-Lai, WANG Yi-Meng, DOU Xiao, XU Min-Yun, WANG Kun. 农牧交错带研究进展 [J]. 生态学报 2009.doi:10.3321/j.issn:1000-0933.2009.08.048
[2] 边秀举, 胡林, 李晓林, 张福锁. VA菌根对坪草矿质养分吸收及草坪质量影响的研究 [J]. 草地学报 2001.doi:10.3969/j.issn.1007-0435.2001.03.008
[3] 盖京苹, 冯固, 李晓林. 我国北方农田土壤中AM真菌的多样性 [J]. 生物多样性 2004.doi:10.3321/j.issn:1005-0094.2004.04.007
[4] 钱伟华, 贺学礼, Weihua Qian, Xueli He. 荒漠生境油蒿根围AM真菌多样性 [J]. 生物多样性 2009.
[5] Vogel-Mikus K, Drobne D, Regvar M. Zn, Cd and Pb accumulation and arbuscular mycorrhizal colonisation of pennycress Thlaspi praecox Wulf. (Brassicaceae) from the vicinity of a lead mine and smelter in Slovenia [J]. Environmental Pollution 2005, 2(2).
[6] Bearden BN, Petersen L. Influence of arbuscular mycorrhizal fungi on soil structure and aggregate stability of a vertisol. [J]. Plant and Soil 2000, 1/2(1/2).
[7] Oehl F, Sieverding E, Mader P, Dubois D, Ineichen K, Boller T. Impact of long-term conventional and organic farming on the diversity of arbuscular mycorrhizal fungi [J]. Oecologia 2004, 4(4).
[8] Mangan SA, Eom AH, Adler GH, Yavitt JB, Herre EA. Diversity of arbuscular mycorrhizal fungi across a fragmented forest in Panama: insular spore communities differ from mainland communities [J]. Oecologia 2004, 4(4).
[9] He, Xueli, Li, Yingpeng, Zhao, Lili. Dynamics of arbuscular mycorrhizal fungi and glomalin in the rhizosphere of Artemisia ordosica Krasch in Mu Us sandland, China [J]. Soil Biology & Biochemistry 2010, 8(8).
[10] 贺学礼, 杨静, 赵丽莉, HE Xueli, YANG Jing, ZHAO Lili. 荒漠沙柳根围AM真菌的空间分布 [J]. 生态学报 2011.
[11] IANSON D C, ALLEN M F. The effects of soil texture on extraction of vesicular arbuscular mycorrhizal spores from arid soils [J]. Mycologia 1986, 78.
[12] SCHENCK N C, PEREZ Y. Manual for the identification of VA mycorrhizal fungi [M]. Florida:FNVAM Gainesville 1988.
[13] 张美庆, 王幼珊, 张弛. 我国北方VA菌根真菌某些属和种的生态分布 [J]. 真菌学报 1994, 13(03).
[14] Klironomos JN, Hart MM, Gurney JE, Moutoglis P. Interspecific differences in the tolerance of arbuscular mycorrhizal fungi to freezing and drying [J]. Canadian Journal of Botany 2001, 10(10).
[15] Walker C, Giovannetti M, Avio L, Citernesi AS, Nicolson TH. A NEW FUNGAL SPECIES FORMING ARBUSCULAR MYCORRHIZAS - GLOMUS VISCOSUM [J]. Mycological Research 1995, 12(12).
[16] Roesti, D, Ineichen, K, Braissant, O, Redecker, D, Wiemken, A, Aragno, M. Bacteria associated with spores of the arbuscular mycorrhizal fungi Glomus geosporum and Glomus constrictum [J]. Applied and Environmental Microbiology 2005, 11(11).
[17] Filippi C, Bagnoli G, Citernesi AS, Giovannetti M. Ultrastructural spatial distribution of bacteria associated with sporocarps of Glomus mosseae. [J]. Symbiosis 1998, 1(1).
