Symmetrospora coprosmae (Hamam. & Nakase) Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout 2015
Details
Biostatus
Nomenclature
Classification
Synonyms
Associations
Descriptions
Growth in YM broth: After 5 days at 17° C, the vegetative cells are oval or short oval, 3.0-4.5 x 4.0-7.0 fim, single or in pairs (Fig. 1A). After one month at 17° C, a sediment and a thin pellicle are present.
Growth on YM agar: After one month at 17° C, the streak culture is grayish yellow, smooth, shining, mucous, soft and has an entire margin. Dalmau plate culture on corn meal agar: Pseudomycelium and true mycelium are formed. Ballistospores: Ballistospores are produced on corn meal agar and YM agar. They are round, 2.0-2.5 x 2.0-3.0 µm (Fig. IB). Fermentation: Negative.
Maximum growth temperature: 27-28° C. Vitamins required: Nil.
Growth on 50% (w/w) glucose-yeast extract agar: Negative.
Production of starch-like substances: Positive.
Liquefaction of gelatin: Negative.
Acid production on chalk agar: Negative.
Splitting of fat: Negative.
Urease: Positive.
Diazonium blueB reaction: Positive.
G + C content of nuclear DNA: 49.8 mol% (by HPLC), 46.9 mol% (from 7rn) (Table 3).
Major ubiquinone: Q-10 (Table 4).
Xylose in the cells: Present.
Strains examined: The strain NZ-51, which was isolated from a dead leaf and a fruit of Coprosma tenuifolia, at Kaimanawa State Forest Park, Taupo, New Zealand in 1987 is the type strain of the species. This strain is deposited at the Japan Collection of Microorganisms, Wako, Saitama, as JCM 8936.
B. coprosmaensis shows a close resemblance to B. pseudoalba in its biochemical and physicological characters, and also has similar G + C contents to B. globospora. However, the differences were found between B. coprosmaensis and the latter two species DNA dissimilarity as deduced from DNA-binding experiments (3-12%) (Table 5). It clearly indicates that B. coprosmaensis is a different species from B. globospora and B. pseudoalba.
B. coprosmaensis can be discriminated from B. pseudoalba in the assimilation of nitrite and from B. globospora in the assimilation of melibiose and ethanol (Table 6).
In liquid YM post dies 5 ad 17° C, cellulae vegetativae ovoideae vel subovoideae, 3.0-4.5 x 4.0-7.0 pm, singulae aut binae. Post unum mensem ad 17° C, sedimentum et pellicula formantur. Cultura in agaro YM, griseo-fiava, glabra, niti-da, mucosa, mollis et margine glabra. Ballistosporae rotundae, 2.0-2.5 x 2.0-3.0 pm. Pseudomycelium et mycelium formantur. Fermentatio nulla. Glucosum, galactosum, saccharosum, maltosum, cellobiosum, trehalosum, melibiosum, raffinosum, melezito¬sum, amylum solubile, D-xylosum, L-arabinosum, D-arabinosum, D-ribosum, L-rhamnosum, ethanolum, glycerolum (exiguum, vel lente et exiguum), ery-thritolum, ribitolum (lente et exiguum), galactitolum, D-mannitolum, a-methyl-D-glucosidum, salicinum, glucono-5-lactonum (exiguum, vel lente et exiguum), acidum 2-ketogluconicum, acidum 5-ketogluconicum, acidum DL-Iacticum, acidum succinicum, acidum cit-ricum (exiguum) et inositolum assimilantur, at non L-sorbosum, lactosum, inulinum nec D-glucitolum. Kalium nitricum non assimilatur. Maxima temperatura crescentiae: 27-28° C. Ad crescentiam vitaminum non necessarium est. Proportio molaris guanini + cytosini in acido deoxyribonucleico: 49.8 mol% (per HPLC), 46.9 mol% (ex 7m). Ubiquinonummajus: Q-10. Xylo-sum in cellulis presens.
Holotypus: JCM 8936 (originaJiterutNZ-51).