lamellibrachiae

Sakaguchia Y. Yamada, K. Maeda & Mikata, Bioscience Biotechnology and Biochemistry 58: 102 (1994)

Type species:

Sakaguchia dacryoidea (Fell, I.L. Hunter & Tallman) Y. Yamada, K. Maeda & Mikata, Bioscience Biotechnology and Biochemistry 58: 102 (1994)

Marine species:

Sakaguchia lamellibrachiae (Nagahama, Hamamoto, Nakase & Horikoshi) Q.M. Wang, F.Y. Bai, M. Groenewald & T. Boekhout, Studies in Mycology 81: 177 (2015)

=Rhodotorula lamellibrachiae Nagah., Hamam., Nakase & Horikoshi, Antonie van Leeuwenhoek 80: 320 (2001)

=Rhodotorula lamellibrachii Nagah., Hamam., Nakase & Horikoshi (2001)

Index Fungorum Number: 813147               Faceoffungi Number: N/A

In YM broth (Difco), after 3 days at 25°C, the cells are ovoidal to ellipsoidal (2–4 × 2–7 μm), and occur singly or in parent-bud pairs. A sediment is formed after 1 month. On YM agar, after one month at 25°C, the streak culture is light pink colored, glistening, soft and has an entire margin. In Dalmau plate cultures on cornmeal agar (Difco), branching hyphae or pseudohyphae are not formed. Fermentation ability is negative. The following carbon compounds are assimilated: D-glucose, L-sorbose (weak), saccharose, trehalose, melezitose, D-xylose (weak), glycerol, ribitol (latent), D-mannitol (latent), D-glucitol (weak), salicin, glucono-δ-lactone, 2-ketogluconic acid, 5- ketogluconic acid and succinic acid. No growth occurs on galactose, maltose, cellobiose, lactose, melibiose, raffinose, inulin, soluble starch, L-arabinose, Darabinose, D-ribose, L-rhamnose, ethanol, erythritol, galactitol, methyl-α-D-glucoside, DL-lactic acid, citric acid, inositol, D-glucuronic acid or D-galacturonic acid. The following nitrogen compounds are assimilated: potassium nitrate and sodium nitrite. No growthoccurs on ethylamine, lysine or cadaverine. Maximum growth temperature is 31–34°C. The vitamin thiamine is required for growth. No growth occurs on 50% glucose-yeast extract agar. Growth occurs in the presence of 100 ppm cycloheximide. Growth in the presence of 10% sodium chloride is weak and latent. Starch-like substances are not produced. The diazonium Blue B reaction is positive. Urease activity is positive. The major ubiquinone is Q-10. The G+C content of the nuclear DNA is 50.7 mol% (by HPLC).

Description based on Nagahama et al. (2001)

Key references:

Jones EBG, Suetrong S, Sakayaroj J, Bahkali AH, Abdel–Wahab MA, Boekhout T, Pang KL (2015). Classification of marine Ascomycota, Basidiomycota, Blastocladiomycota and Chytridiomycota. Fungal Diversity 73: 1–72.

Nagahama T, Hamamoto M, Nakase T, Horikoshi K (2001). Rhodotorula lamellibrachii sp. nov., a new yeast species from a tubeworm collected at the deep–sea floor in Sagami bay and its phylogenetic analysis. Antonie van Leeuwenhoek. 80:317–323.

Wang QM, Yurkov AM, Göker M, Lumbsch HT, Leavitt SD, Groenewald M, Theelen B, Liu XZ, Boekhout T, Bai FY (2015). Phylogenetic classification of yeasts and related taxa within Pucciniomycotina. Studies in Mycology. 81:149–189.

Yamada Y, Maeda K, Mikata K (1994). The phylogenetic relationships of Rhodosporidium dacryoidum Fell, Hunter et Tallman based on the partial sequences of 18S and 26S ribosomal RNAs: The proposal of Sakaguchia gen. nov., a heterobasidiomycetous yeast genus. Bioscience Biotechnology and Biochemistry. 58:99–103.

List of marine Sakaguchia species:

1. S. cladiensis (Fell, Statzell & Scorzetti) Q.M. Wang, F.Y. Bai, M. Groenewald & T. Boekhout, Studies in Mycology 81: 177 (2015).
2. S. dacryoidea (Fell, I.L. Hunter & Tallman) Y. Yamada, K. Maeda & Mikata, Bioscience Biotechnology and Biochemistry 58: 102 (1994)
3. S. lamellibrachiae (Nagahama, Hamamoto, Nakase & Horikoshi) Q.M. Wang, F.Y. Bai, M. Groenewald & T. Boekhout, Studies in Mycology 81: 177