期刊
ANNALS OF MICROBIOLOGY
卷 62, 期 4, 页码 1587-1592出版社
SPRINGER
DOI: 10.1007/s13213-011-0414-3
关键词
Sequence; Phylogenetic; Paecilomyces; Polysaccharide
资金
- Science and Technology Department Foundation of Hebei Province [07215506]
- Natural Science Foundation of Hebei Province [B2008000029]
A special purple filamentous fungus, TD16, was isolated from the contaminated culture broth of cyanobacteria (chroococcaceae sp). The sequence of the ITS1-5.8S-ITS2 region of its rDNA suggests that it belongs to the genus Paecilomyces with the highest homology of 99%. Further phylogenetic analysis (GenBank accession no: JN243772) indicates that the fungus is related more closely to Paecilomyces lilacinus than to other species of Paecilomyces. However, its phialides consist of a very thin neck (diameter less than 0.5 mu m), approximately half that of the Paecilomyces lilacinus reported previously. Accordingly, the species is perhaps a variety or subspecies of Paecilomyces lilacinus. Furthermore, this special Paecilomyces secreted polysaccharides composing of galactose only and a lilac water-soluble pigment into the broth.
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