南极乔治王岛的丝状真菌

本文报道从南极乔治王岛26个样品中分离到60株丝状真菌,其中6个样品未分离到任何真菌,经初步鉴定有8属10个种。根据本次温度实验和该地寒冷的气候,只有桔灰青霉(Penicillium aurantiogriseum Dierckx),大毛霉Mucor mucedo(L.)Fres.)和毡状金孢霉(chrysosporium pannorum(Link)Hughes)在本地能生长繁殖。其中毡状金孢霉占明显优势。

SOME FILAMENTOUS FUNGI ISOLATED FROM THE MATE RIALS OF KING GEORGE ISLAND IN ANTARCTICA

The fungi isolated from antarctic soil were studied firstly by Ekelof. Since then, many fungi in Antarctica have been reported, e. g., yeasts, moulds and mushrooms. After his expedition, Professor Wei Jiang-chun brought us 26 samples collected from the Antarctic King George Island in 1984. Sixty strains have been isolated from 20 samples. No fungi appeared in the others. Identified fungal species are as follows: Penicillium citreonigrum Dierckx, Penicillium aurantiogriseum Dierckx, Aspergillus penicilloides Spegazzini, Aspergillus gracilis Bainier, Eurotium repens De Bary, Cladosporium sphaerospermum Penz., Scopulariopsis brumptii Salvanet-Duval, Phialophora melinii (Nannf.) Conant, Mucormucedo (L.) Fres., and Chrysosporium pannorum (Link) Hughes. Among them, Chrysosporium pannorum (Link) Hughes attained 41.6% of the strains isolated. All the ten species grow well at 25℃ and 14—15℃. But only Penicillium aurantiogriseum Dierckx, Mucor mucedo (L.) Fres. and Chrysosporium pannorum (Link) Hughes grow well at 1—2℃ and 4℃. As a psychrophile, Chrysosporium pannorum (Link) Hughes has been reported repeatedly in Antarctica. It is undoubtedly dominant.