We value your privacy

We use cookies and other technologies to enhance your experience, analyse site usage, help with reporting, and assist in other ways to improve the website. You can choose to allow cookies and other technologies or decline. Your choice will not affect site functionality.

Download Copy a link to this page Cite this record

Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025

Scientific name record
Names_Fungi record source
This is the current name
This record has collections
This record has descriptions
This is foreign
Show more

Click to collapse Biostatus Info

Exotic
Absent
New Zealand
Political Region

Click to collapse Classification Info

Click to collapse Descriptions Info

Colonies on PDA white to grey and black with cottony fluffy growth, reverse light avcllancous or orange; condidiophores poorly differentiated micronematous or semi-macronematous mononematous straight or flexuous, hyaline, smooth 1.1 — 2.2 fxm wide; conidiogenous cells monoblastic, terminal, cylindrical, smooth and hyaline for most part and rough as they reach the conidia 5.0—22.0x2.2 — 4.4 um (mostly up to 16.5 and occasionally 26.5 um); conidia solitary, acrogenous, ovate, elliptical, clavate, rarely round, rounded at the apex, narrowed to a truncate base, dark olive brown, thickwalled, verrucose, 1 — 2 septate, sometimes 3—4 septate; predominantly two septate conidia observed and they comprise 80% of conidial production, single septate conidia being 18% and three to four septate being 2% (Fig. 1).
Isolated from kernels of Arachis hypogaea L. cv TMV-3, 3-1-1973, Rajendranagar, Hyderabad, leg. V. KAVINDRA NATH, CMI No. 205718 (Type).
Holotype: Swaziland, Luyengo, Rossman #1429 Dried culture of isolate, from fungal comb in mounds of Macrotermes ukuzii. 15 ix 1977 (MPPD). Isotype: Swaziland, Luyengo, Rossman 11429. Dried culture of isolate, from fungal comb in mounds of Macrotermes ukuzii. 15 ix 1977 (CUP).
COLONIES on malt agar white to grey becoming brown to black, floccose to appressed, dark ropy strands of conidiophores frequently present. HYPHAE septate, branched, of two types: hyaline to subhyaline, smooth, 1.5-5 (x̄ = 2.8) μm diam, and subhyaline to pale brown, sometimes finely roughened, 2.5-6 (x̄ = 3.4) μm diam. CONIOIOPH0RES micronematous to semi-macronematous, mononematous, frequently funiculose, infrequently branched, septate , subhyaline to pale brown. CONIDIOGEN0US CELLS holoblastic, monoblastic or polyblastic, integrated, intercalary, determinate, cylindric to dolifonn , denticulate following secession of conidia, denticles short cylindric to doliform, 1-4 (x̄ = 2.4) x 1.5-3 (x̄ = 2.2) um. CONIDIA solitary , pleurogenous, mostly verrucose , pale to dark brown, clavate to obovate to obpyriform to broadly or fusiform ellipsoid to reniform, transversely (0 - ) 1-3 (-4)-septate, mostly 2-septate , may be slightly constricted at the septa, rarely with 1-2 oblique or longitudinal septa, 10-17 (x̄ = 13 .9) x 6-12 (x̄ = 8.5) um (I-septate). 14-23 (x̄ = 18.6) x 7-12 (x̄ = 9) um (2-septate). 17 - 25 (x̄ = 21.2) x 7-12 (x̄ = 9) um (3-septate), bases 2-4 (x̄ = 2.6) um diam, with a portion of the conidiogenous cell usually remaining as a basal frill.

Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025

A comprehensive description was given by Palm & Stewart (1981). In contrast to many other species in the genus, Pse. pavgii (along with Pse. sacchari) generally lacks longitudinal spore septa.
India, Telangana, Rajendranagar, 17.3125°N, 78.4°E, from seeds of Arachis hypogaea, 3 Jan. 1973, V. Kavindra Nath (holotype IMI 205718).

Click to collapse Taxonomic concepts Info

Pithomyces funiculosus M.E. Palm, E.L. Stewart & Rossman
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Pithomyces pavgii (V.R. Nath) M.E. Palm, E.L. Stewart & Rossman
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir, D. Lee
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Trichocladium pavgii V.R. Nath
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025

Click to collapse Collections Info

Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Australia
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
Sri Lanka
Pseudopithomyces pavgii (V.R. Nath) B.S. Weir & D. Lee 2025
United States

Click to collapse Metadata Info

91b1d2db-b617-4619-99f3-0e1486eaa4f7
scientific name
Names_Fungi
6 July 2023
7 June 2025
Click to go back to the top of the page
Top