Mycorrhizal and dark septate endophytic fungi under the canopies of desert plants in Mu Us Sandy Land of China

doi:10.1007/s11703-009-0026-x

Front Agric Chin

2009, Vol. 3

Issue (2) : 164-170 https://doi.org/10.1007/s11703-009-0026-x

RESEARCH ARTICLE

Mycorrhizal and dark septate endophytic fungi under the canopies of desert plants in Mu Us Sandy Land of China

Yanqing WU¹, Xueli HE¹(

), Tiantian LIU²

1. College of Life Sciences, Hebei University, Baoding 071002, China; 2. College of Life and Environment Sciences, Shanghai Normal University, Shanghai 200234, China

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Abstract

Biodiversity of arbuscular mycorrhizal colonization and spore density was investigated in 20 desert plants (dominant or common species) collected from different locations of Mu Us Sandy Land of China. We observed three mycorrhizal types including Arum-type,Paris-type, and an intermediate type among the plants. Another type of potentially beneficial fungi associated with roots of all species was also observed, namely, dark septate endophytic fungi (DSEF). Of the 20 sample plants examined, all species were coinfected by the two target fungi (Arbuscular mycorrhizal fungi (AMF) colonization of Salix psammophila and DSEF colonization of Periploca sepium were as low as 4%). Based on this investigation, we speculated that the DSEF are ubiquitous in desert ecosystems and can co-occur with AMF in desert plants, functioning much like mycorrhizal fungi. Further studies will be required to elucidate interactional mechanisms with AMF and the mechanisms operating in desert ecosystem.

Keywords Arbuscular mycorrhizal fungi mycorrhiza type root endophytic fungi desert plants

Corresponding Author(s): HE Xueli,Email:xuelh1256@yahoo.com.cn

Issue Date: 05 June 2009

Cite this article:

Xueli HE,Tiantian LIU,Yanqing WU. Mycorrhizal and dark septate endophytic fungi under the canopies of desert plants in Mu Us Sandy Land of China[J]. Front Agric Chin, 2009, 3(2): 164-170.

URL:

https://academic.hep.com.cn/fag/EN/10.1007/s11703-009-0026-x
https://academic.hep.com.cn/fag/EN/Y2009/V3/I2/164

Tab.1 Description of site and plant sampling

Fig.1 Mycorrhizal types
Note: (a), (b) and (c) represent Paris-type of , intermediate type of , and coexistence of AMF and DSEF in respectively. H, HC, V, HH and MS represent hyphae of AMF, hyphal coils of AMF, vesicles of AMF, hyaline hypha of DSEF and microsclerotium, respectively.

Tab.2 Status of different structures and spore density of AMF and DSEF tissues in the arid plots

Fig.2 Colonization by AMF and DSEF in tissues
Note: (a) represents superficial hyphae of AMF (AMH) and DSE (DH) on lateral roots of . fruticosum. (b) represents hyhae of AMF (AMH) through the cell wall in the roots of . (c) represents superficial hyphae of DSE on roots of . (d) represents vesicles of AMF in the roots of . (e) represents vesicles of AMF in the roots of . (f) represents arbuscule (Ar) of AMF in the roots of . (g) represents vesicles of AMF in the roots of . (h) represents superficial hyphae of DSE and microsclerotia (MS) on the roots of ((a), bar=100 μm ; (b), (c), (d), (e), (f), (g) and (h), bar = 25 μm).

Tab.3 Correlations of different AM structures and DSE tissues

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