Absidia turgida T.K. Zong & X.Y. Liu, sp. nov. 2021
Fungal names: FN570834
Holotype: China. Xinjiang Uygur Autonomous Region, Urumqi, Urumqi County, Xiejiagou Natural Scenic Resort, from soil sample, 7 June 2002, Wang Xuewei (HMAS 249882, living culture CGMCC 3.16032. GenBank: ITS = MW671540, LSU = MW671547. NMDC: ITS = NMDCN0000JBA, LSU = NMDCN0000JB3).
Morphological description :
Asexual morph: Colonies on MEA, irregularly radially gaped, attaining 23-mm diameter after 3 days, 35-mm diameter after 7 days, 50-mm diameter after 12 days at 27◦C, white at first and then drab gray to drab (R45), sparse, but abundantly sporulated. Hyphae hyaline at first, becoming brown when mature, occasionally swollen, 9.0- to 23.0-µm diameter. Stolons branched, smooth, with few septa near the base of sporangiophores, 8.5- to 16.0-µm diameter. Rhizoids root-like, thick, short or comparatively long, simple or 2–3 branched, with a septum at the base. Sporangiophores erect or slight bent, 1– 4 in whorls, unbranched or sometimes simple, hyaline, with a septum (17.0–)21.0–39.5(–43.5) µm below apophyses, 125.0– 350.0(–370.0) × (3.5–)4.5–10.0(–11.0) µm. Apophyses distinct, unpigmented (4.5–)5.0–13.5(–16.5) µm high, 3.5–10.0 µm wide at the base, and (10.0–)11.0–22.0(–23.5) µm wide at the top. Sporangia globose to pyriform, multispored, deliquescentwalled, 20.5–42.5 × 20.0–41.5(–46.0) µm. Columellae mostly hemispherical, sometimes conical, hyaline, smooth, with a single clavate projection, up to 9.5 µm in length, with a bulbous swelling at top (13.0–)14.5–25.0(–26.5) × (10.0–)11.5–21.5 µm. Collars present or absent, distinct if present. Sporangiospores variable, globose, cylindrical or irregular, hyaline, smooth, 4.0– 5.0(–6.5) × 3.0–4.0 µm when cylindrical, 3.5–4.5 × 3.0–4.0 µm or 2.0- to 2.5-µm diameter when globose. Chlamydospores absent. Zygospores not observed.
Media and temperatures: Colonies on SMA, sporadic, nebulashaped, attaining 22-mm diameter after 3 days, 32-mm diameter after 7 days, 47-mm diameter after 12 days at 27◦C, white at first and then pale drab-gray to light cinnamon-drab (R45). Colonies on PDA, irregularly tree ring-shaped, attaining 21-mm diameter after 3 days, 32-mm diameter after 7 days, 44-mm diameter after 12 days at 27◦C, growing slowly when aerial hyphae reaching the lid of the petri dish, white at first and then drab to hair brown (R45). No growth at 33◦C.
Distribution: China
GenBank: ITS = MW671540, LSU = MW671547. NMDC: ITS = NMDCN0000JBA, LSU = NMDCN0000JB3
Note:
Preference:Tongkai, Z. , Zhao, H. , Liu, X. L. , Ren, L. Y. , & Liu, X. Y. . (2021). Taxonomy and phylogeny of four new species in absidia (cunninghamellaceae, mucorales) from china. Frontiers in Microbiology, 12.
Morphologies of Absidia turgida CGMCC 3.16032. (A) Sporangium; (B,C) columellae; (D) sporangiospores; (E) rhizoids; (F) swollen on hyphae. Scale bars: (A–C,E,F) 20 µm; (D) 5 µm.
Colonies of Absidia turgida CGMCC 3.16032 at 27◦C after 12 days on MEA (A) obverse, (B) reverse; on SMA (C) obverse, (D) reverse; on PDA (E) obverse, and (F) reverse.
