1) A remarkable development of yeasts was always observed in the storage of seaweeds that were stored for several days at 20℃ after the addition of chlortetracycline and citric acid. 2) The number of the developing yeasts varied according to the species of the seaweeds tested and it was from 4 x 10^7 to 4 X 10^8 per 1 g of wet seaweeds. 3) Thirty-nine cultures of yeasts were isolated from the stored seaweeds (15 species) : 8 of the cultures were members of the genus Rhodotorula, 5 of Cryptococcus, 17 of Candida, 2 of Trichosporon, and 7 of Torulopsis. 4) In Chlorophyta, during the first two days storage, Rhodotorula (90 %) and Cryptococcus (10 %) predominated, and after seven days Candida parapsilosis var. intermedia and Torulopsis famata were dominantly detected. In Rhodophyta, Rhodotorula were only 5 % during the first two days, and after seven days almost all of the yeasts were C. parapsilosis var. intermedia. Excepting in Colopomenia bullosa, no Rhodotorula was detected in Phaeophyta in all stages of the storage. In Col. bullosa, during the first two days, the yeasts were Cryptococcus (50 %), Rhodotorula (20 %) and Candida (30 %), and after four days almost all of the yeasts were C. parapsilosis var. intermedia. In other Phaeophyta almost all of the yeasts were invariably C. parapsilosis var. intermedia.
Mendeley出力
