Diversity of arbuscular mycorrhizal fungi associated with a desert plant Artemisia ordosica

doi:10.3724/SP.J.1003.2009.09020

Abstract

Abstract:

To elucidate the diversity of arbuscular mycorrhizal (AM) fungi associated with the common desert plant Artemisia ordosica, we sampled, in April 2007, the following four representative sites in the Mu Us Sandland and Tengger Desert regions: Yulin Psammophyte Garden (Yulin), Yanchi Desert Shrub Garden (Yanchi), Ordos Sandland Ecological Research Station (Research Station), and Shapotou Desert Research and Experiment Station (Shapotou). We collected soil samples from the rhizosphere ofA. ordosica and divided them into five depth intervals, each 10 cm, to 50 cm depth. A total of 28 AM fungal species from four genera were isolated. Of these, 16 species belonged to Glomus, 7 to Acaulospora, 4 to Scutellospora and 1 toDiversispora. Glomus mosseae was the dominant species. Acaulospora bireticulata andG. reticulatum were common species (>25% frequency of occurence) andG. constrictum was rare species (≤25% frequency of occurence) at the four sampling sites.Glomus geosporum was found only in Yanchi, G. melanosporum only in Yulin and A. mellea, A. lacunosa, G. coremioides and G. magnicaule occurred only in Research Station. Richness of AM species was highest in Yanchi and Research Station and spore density was highest in Yulin. Species richness and spore density were the lowest in Shapotou. Generally, spore density, isolation frequency, relative abundance and importance value followed the trend Glomus > Acaulospora > Paraglomus > Diversispora. Our results are the first to assess the considerable diversity of arbuscular mycorrhizal fungi found in association with Artemisia ordosica. Further research should concentrate on understanding the dynamics of these relationships.

Key words: Artemisia ordosica, Mu Us Sandland, Tengger Desert, spore density, importance value

Weihua Qian, Xueli He. Diversity of arbuscular mycorrhizal fungi associated with a desert plant Artemisia ordosica[J]. Biodiv Sci, 2009, 17(5): 506-511.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2009.09020

https://www.biodiversity-science.net/EN/Y2009/V17/I5/506

Figures/Tables 5

References 23

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样地 Site	地点 Locality	速效磷 Available P (μg/g)	速效氮 Available N (mg/g)	有机质 Organic matter (μg/g)	pH	孢子密度 Spore density (inds./20 g)	种丰度 Species richness
榆林 Yulin	陕西榆林沙生植物园 Yulin Psammophyte Garden, Shaanxi	2.639	5.04	2.304	7.59	174.25	16
盐池 Yanchi	宁夏盐池县沙生灌木园 Yanchi Desert Shrub Garden, Ningxia	3.591	9.8	5.794	9.35	159.5	23
研究站 Research Station	鄂尔多斯沙地草地生态研究站 Ordos Sandland Ecological Research Station, CAS	2.896	13.23	3.77	8.87	111.5	25
沙坡头 Shapotou	中国科学院沙坡头沙漠试验研究站 Shapotou Desert Research and Experiment Station, CAS	1.657	9.45	3.457	8.96	63	8

样地 Site	地点 Locality	速效磷 Available P (μg/g)	速效氮 Available N (mg/g)	有机质 Organic matter (μg/g)	pH	孢子密度 Spore density (inds./20 g)	种丰度 Species richness
榆林 Yulin	陕西榆林沙生植物园 Yulin Psammophyte Garden, Shaanxi	2.639	5.04	2.304	7.59	174.25	16
盐池 Yanchi	宁夏盐池县沙生灌木园 Yanchi Desert Shrub Garden, Ningxia	3.591	9.8	5.794	9.35	159.5	23
研究站 Research Station	鄂尔多斯沙地草地生态研究站 Ordos Sandland Ecological Research Station, CAS	2.896	13.23	3.77	8.87	111.5	25
沙坡头 Shapotou	中国科学院沙坡头沙漠试验研究站 Shapotou Desert Research and Experiment Station, CAS	1.657	9.45	3.457	8.96	63	8

样地 Site	AM真菌属 Genera	孢子密度 Spore density (inds./20 g soil)	分离频度 Isolation frequency (%)	相对多度 Relative abundance (%)	重要值 Importance value
榆林 Yulin	无梗囊霉属 Acaulospora	36.00^b	75^b	20.50^b	47.75^b
	球囊霉属 Glomus	136.75^a	100^a	78.50^a	89.25^a
	盾巨孢囊霉属 Scutellospora	1.50^c	50^c	1.00^c	25.50^c
盐池 Yanchi	无梗囊霉属 Acaulospora	30.75^b	75^b	19.00^b	47.00^b
	球囊霉属 Glomus	110.50^a	100^a	69.25^a	84.63^a
	盾巨孢囊霉属 Scutellospora	118.25^c	75^b	11.50^c	43.25^c
研究站 Research Station	无梗囊霉属 Acaulospora	22.50^b	100^a	19.75^b	59.87^b
	球囊霉属 Glomus	79.75^a	100^a	71.50^a	85.75^a
	盾巨孢囊霉属 Scutellospora	9.50^c	75^b	8.50^c	41.75^c
	多孢囊霉属 Diversispora	0.25^d	25^c	0.25^d	12.63^d
沙坡头 Shapotou	无梗囊霉属 Acaulospora	18.00^b	50^b	15.05^b	32.75^b
沙坡头 Shapotou	球囊霉属 Glomus	61.00^a	100^a	84.59^a	92.30^a

样地 Site	AM真菌属 Genera	孢子密度 Spore density (inds./20 g soil)	分离频度 Isolation frequency (%)	相对多度 Relative abundance (%)	重要值 Importance value
榆林 Yulin	无梗囊霉属 Acaulospora	36.00^b	75^b	20.50^b	47.75^b
	球囊霉属 Glomus	136.75^a	100^a	78.50^a	89.25^a
	盾巨孢囊霉属 Scutellospora	1.50^c	50^c	1.00^c	25.50^c
盐池 Yanchi	无梗囊霉属 Acaulospora	30.75^b	75^b	19.00^b	47.00^b
	球囊霉属 Glomus	110.50^a	100^a	69.25^a	84.63^a
	盾巨孢囊霉属 Scutellospora	118.25^c	75^b	11.50^c	43.25^c
研究站 Research Station	无梗囊霉属 Acaulospora	22.50^b	100^a	19.75^b	59.87^b
	球囊霉属 Glomus	79.75^a	100^a	71.50^a	85.75^a
	盾巨孢囊霉属 Scutellospora	9.50^c	75^b	8.50^c	41.75^c
	多孢囊霉属 Diversispora	0.25^d	25^c	0.25^d	12.63^d
沙坡头 Shapotou	无梗囊霉属 Acaulospora	18.00^b	50^b	15.05^b	32.75^b
沙坡头 Shapotou	球囊霉属 Glomus	61.00^a	100^a	84.59^a	92.30^a

种 Species	孢子密度 Spore density (inds./20 g soil)				分离频度 Isolation frequency (%)
	榆林 Yulin	盐池 Yanchi	研究站 Research Station	沙坡头 Shapotou	榆林Yulin	盐池 Yanchi	研究站 Research Station	沙坡头 Shapotou
	凹坑无梗囊霉 Acaulospora excauata	0^b	1.75^ab	2.25^a	0^b	0	50	75	0
双网无梗囊霉 A. bireticulata	6.25^a	10.25^a	10.50^a	8.25^a	75	75	75	75
沙荒球囊霉 Glomus deserticola	3.25^ab	1.25^b	7.00^a	0^b	50	50	75	0
网状球囊霉 G. reticulatum	11.25^a	12.00^a	9.25^a	12.50^a	75	75	75	75
多梗球囊霉 G. multicaule	0.50^b	0.50^b	0.25^b	2.25^a	25	25	25	75
集球囊霉 G. fasciculatum	9.50^a	3.75^ab	0^b	0.50^b	75	50	0	25