Tubeufiales » Tubeufiaceae » Manoharachariella

Manoharachariella tectonae

Manoharachariella tectonae Doilom & K.D. Hyde, in Doilom et al., Fungal Diversity: 10.1007/s13225-016-0368-7, [42] (2016)

Index Fungorum number: IF551972            Facesoffungi number: FoF01865

 

Saprobic on dead branches of T. grandis. Sexual morph: Undetermined. Asexual morph: Colonies on natural substrate, superficial, solitary, scattered, dark brown. Conidiophores micronematous. Conidia (45–)50–54(−65) × (17–)20–23(−26) μm ( = 52 × 22 μm, n = 20), subhyaline when immature, becoming dark blackish-brown in center part of mature conidia, hyaline to subhyaline at 1–2 tiers of apical and basal cells, doliiform, obpyriform, ellipsoi- dal, dictyoseptate, solitary, apiculate, 6–10 longitudinal septa, and 7–11 transverse septa, dark brown at the septa; terminal cells hyaline to subhyaline, 6–12 μm long, 5–7 μm wide, rounded at the apex, thick-walled.

 

Culture characteristics: Ascospores germinating on PDA within 24 h. Colonies on MEA reaching 11–16 mm diam. after 14 days in the dark at 25 °C, ( = 14.2 mm, n = 5), edge entire to erose or dentate, sometimes fimbriate, flat or effuse at the edge, raised at the old mycelium plugs in the center, vel- vety, colonies light brown (5D4) at the center, brown (6F4) at the edge, brownish grey (6F2) at the center and grayish brown (7E3) at the edge from below.

 

Notes: The genus Manoharachariella presently consists of three species according to Index Fungorum (2016), with   M.   lignicola   as   the type species. Manoharachariella tectonae (MFLU 15–3413) was com- pared with the three species. Conidia of M. tectonae are longer and wider than M. elsadii but shorter and narrower than M. indica, longer and narrower than M. lignicola. Conidia of M. tectonae are somewhat similar to the generic type, but conidial septation is 7–11 transverse septa while there are 7–9 transverse septa in M. lignicola. Based on morphological features of the conidia size and shape as well as number of transverse septa this specimen is recognized as new species.