Fungi from the Bay of Fundy II. Observations on Fungi from Living and Gast Seaweeds

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Abstract
Some 30 spp. of filamentous fungi were isolated from littoral marine algae by several methods. The fungi were all Fungi Imperfecti and all but 5 were of a terrestrial nature. The 7 most frequently isolated species [Penicillium ochro-chloron, P. simplicissimum, Cladosporium algarum, Dendryphiella salina, Cladosporium herbarum, C. cladosporioides and Gliocladium roseum] were tested for growth on 20 C compounds found in seaweeds, using the methods of Sguros, Meyers and Simms (1962). Tests were conducted in an artificial seawater medium and a mineral salts medium at both 10.degree. and 20.degree. C. Tests to determine the effect of a seaweed leachate on growth of these fungi were also undertaken. The fungi were generally unable to grow on the algal polysaccharides, but showed good growth on the other algal compounds. Seaweeds were also examined for higher marine fungal parasites and/or epiphytes. Didymella fucicola was found on Fucus vesiculosus and Mycosphaerella ascophylli on Ascophyllum nodosum.