Robillarda khodaparastii A. R. Amirmijani, A. Pordel & K. Dehghani, 2025

Amirmijani, Amirreza, Pordel, Adel, Dehghani, Kowsar, Pourmoghaddam, Mohammad Javad, Masigol, Hossein & Grossart, Hans-Peter, 2025, Two new pestalotioid fungi from tropical fruits in Iran, MycoKeys 115, pp. 221-240 : 221-240

publication ID	https://doi.org/10.3897/mycokeys.115.136469
DOI	https://doi.org/10.5281/zenodo.15058422
persistent identifier	https://treatment.plazi.org/id/8DED929A-469C-540D-A306-E989D72AD67B
treatment provided by	MycoKeys by Pensoft
scientific name	Robillarda khodaparastii A. R. Amirmijani, A. Pordel & K. Dehghani
status	sp. nov.

Treatment

Robillarda khodaparastii A. R. Amirmijani, A. Pordel & K. Dehghani sp. nov.

Fig. 4 View Figure 4

Holotype.

Iran • Sistan and Baluchestan Province, Ghasreghand Abad region , from the infected leaves of Mangifera indica , 15 December 2021, leg. A. Pordel and A. R. Amirmijani (holotype: CUJ 0103 ; ex-type culture: UJFCC 2116 ).

Etymology.

The species name is suggested as a tribute to our professor, Dr. Seyed Akbar Khodaparast, in recognition of his significant contributions to the progress of mycology in Iran.

Description.

Sexual morph undetermined. Asexual morph coelomycetous. Conidiomata 300–340 mm diam., black, semi-immersed, solitary, scattered, irregular shape, glabrous, minutely ostiolate. Conidiophores are reduced to conidiogenous cells. Conidiogenous cells 13–20 × 3–6 µm, holoblastic, proliferation percurrent 1–3 times, discrete, subcylindrical to ampulliform, hyaline, aseptate, smooth-walled. Conidia 12–13 × 2–3 µm (n = 50), hyaline, cylindrical, straight, 1 - septate, thin and smooth-walled, apical cell developed into a branched appendage; appendages 12–20 × 1–2.5 µm (n = 50), dividing into 2 branches, straight, non- flexuous, broadly tubular, narrower towards the apex.

Culture characteristics.

Colony on PDA and MEA are similar, attaining 75 to 78 mm diameter after 7 d at 25 ° C, surface and reverse white to cream (Fig. 4 A, B View Figure 4 ), with fluffy white aerial mycelium, conidiomata scattered.

Other specimen examined.

Iran • Sistan and Baluchestan Province, Ghasreghand Abad region , from the infected leaves of Mangifera indica , 15 December 2021, leg. A. Pordel and A. R. Amirmijani (cultures UJFCC 2117 and UJFCC 2118 ) .

Notes.

A comparison of sequence data revealed complete identities among the Robillarda isolates. This clade was determined as a sister group of R. roystoneae ( CBS 115445) with maximum ML and MP bootstrap support. R. khodaparastii is morphologically and phylogenetically near to R. roystoneae , but our species can be easily distinguished from the latter species by producing longer conidiogenous cells [13–20 × 3–6 vs. 7–12 × 2–3 µm] and shorter conidia [12–13 × 2–3 vs. (13 –) 14–15 (– 16) × 2.5–3 (– 3.5) µm].