title: [High arsenic-tolerant fungi: their isolation and tolerant ability].
abstract: A total of thirteen fungal strains with higher arsenic (As)-tolerance ability were isolated from six As-contaminated soil samples collected from the mining areas of Shimen County and Chenz-hou City in Hunan Province. Among the strains isolated, Penicillin janthinellum, Fusarium oxysporum, and Trichoderma asperellum had the highest As-tolerance ability, based on the morphological identification and phylogenetic analysis. Culture experiment showed that on the solid plates with 30,000, 30,000, and 20,000 mg x L(-1) of As, P. janthinellum, F. oxysporum, and T. asperellum had a better colony growth, and after cultured in the liquid medium with 0-50, 0-50, and 0-80 mg x L(-1) of As for 2 days, respectively, the dry mycelia masses of the three strains all increased with increasing As concentration. When the As concentration reached 50, 50, and 80 mg x L(-1), respectively, the fungal biomass of F. oxysporum, T. asperellum, and P. janthinellum increased significantly, compared with CK. High concentration As had no significant effects on the sporalation of the three fungal strains.
authors: Ministry ofAgriculture Key Laboratory of Agro-Environment & Climate Change, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China. shimingsu@163.com
authors: Shi-ming
authors: SM
authors: Su
authors: Xi-bai
authors: XB
authors: Zeng
authors: Xi-liang
authors: XL
authors: Jiang
authors: Ling-yu
authors: LY
authors: Bai
authors: Lian-fang
authors: LF
authors: Li
authors: Yan-rong
authors: YR
authors: Zhang
mesh_terms: D001151:Arsenic / Q000032:analysis / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004361:Drug Tolerance; D005670:Fusarium / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D010407:Penicillium / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D014242:Trichoderma / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification
chemical_list: D012989:Soil Pollutants; D001151:Arsenic