Derxomyces bifurcus Q. M. Wang, F. Y. Bai & A. H. Li 2020, sp. nov.
Creators
- 1. State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China & China General Microbiological Culture Collection Center and State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- 2. State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China & North Minzu University, Yinchuan, Ningxia, 750030, China
- 3. Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
- 4. Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, 38124, Germany
- 5. State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- 6. Purdue University, Department of Botany and Plant Pathology, West Lafayette, IN, 47901, USA
- 7. UCIBIO-REQUIMTE, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal & PYCC - Portuguese Yeast Culture Collection, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
- 8. National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
- 9. Department of Agriculture, Food and Environmental Sciences & Industrial Yeasts Collection DBVPG, University of Perugia, Perugia, 74 - I- 06121, Italy
- 10. School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, BN 2 4 GJ, UK
- 11. TISTR Culture Collection, Thailand Institute of Scientific and Technological Research (TISTR), 35 M 3, Technopolis, Khlong Ha, Khlong Luang, Pathum Thani, 12120, Thailand
- 12. State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China & College of Life Sciences, Hebei University, Baoding, Hebei Province, 071002, China
Description
Derxomyces bifurcus Q.M. Wang, F.Y. Bai & A.H. Li sp. nov. MycoBank MB828776. Fig. 9M, N.
Etymology: the specific epithet bifurcus refers to the vegetative cells producing bifurcate budding of the type strain.
Culture characteristics: In YM broth, after 7 d at 17 °C, cells are cylindrical and ellipsoidal, 1.5–2.8 × 5.0– 8.3 μm and single, budding is bifurcate or multi-polar (Fig. 9M), a sediment is formed. After 1 mo at 17 °C, a ring and sediment are present. On YM agar, after 1 mo at 17 °C, the streak culture is yellowish-cream, butyrous, wrinkled and dull. The margin is entire or eroded. In Dalmau plate culture on corn meal agar, pseudohyphae are formed. Sexual structures are not observed on YM, PDA, V8 and CM agar. Ballistoconidia are are ellipsoidal to napiform, 3.0– 4.0 × 5.0– 6.6 μm (Fig. 9N).
Physiological and biochemical characteristics: Glucose fermentation is absent. Glucose, galactose, sucrose, maltose, cellobiose, trehalose, melibiose, raffinose, melezitose, inulin, soluble starch (weak), D-xylose, L-arabinose, D-arabinose, D-ribose and L-rhamnose are assimilated as sole carbon sources. L-sorbose, lactose, D-glucosamine, N-Acetyl-D-glucosamine, methanol, ethanol, glycerol, erythritol, ribitol, galactitol, D-mannitol, D-glucitol, Methyl-α- D-glucoside, salicin, DL-lactate, succinate, citrate, myo-inositol and hexadecane are not assimilated. Ammonium sulfate, potassium nitrate, L-lysine, ethylamine hydrochloride and cadaverine dihydrochloride are assimilated as sole nitrogen sources. Sodium nitrite is not assimilated. Maximum growth temperature is 28 °C. Growth in vitamin-free medium is negative. Starch-like substances are not produced. Growth on 50 % (w/w) glucose-yeast extract agar is negative. Urease activity is positive. Diazonium Blue B reaction is positive.
Physiologically, De. bifurcus differs from its closely related species De. napiformis in its inability to assimilate Methyl-α- Dglucoside, succinate and myo-inositol and its ability to assimilate inulin, D-ribose and potassium nitrate (Table S1.11).
Typus: China, Simao county, Yunnan province, obtained from a leaf of an unidentified plant, Nov. 2006, Q.-M. Wang (holotype CGMCC 2.3470 T preserved in a metabolically inactive state, ex-type CBS 15489 = SM37.5).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Bulleribasidiaceae
- Genus
- Derxomyces
- Kingdom
- Fungi
- Order
- Tremellales
- Phylum
- Basidiomycota
- Scientific name authorship
- Q. M. Wang, F. Y. Bai & A. H. Li
- Species
- bifurcus
- Taxonomic status
- sp. nov.
- Taxon rank
- species
- Type status
- holotype
- Taxonomic concept label
- Derxomyces bifurcus Li, Li, Wang & Bai, 2020