Paraconiothyrium sp.

Chlebicki, Andrzej, 2023, Fungal endophytes of stems and roots of JUNCUS trifiDUS subsp. trifiDUS from Poland, Annales Universitatis Paedagogicae Cracoviensis Studia Naturae 8, pp. 9-30 : 13

Paraconiothyrium sp.

(PbgEn-19) colonies, measuring 25 mm in diameter, after seven days at room temperature, covered all surface of the Petri plate after 30 days. The margin was slightly fimbriate and the surface was velvety ( Fig. 2 ) and a pale to dark grey. The underside was a pale orange-yellow to dark grey, and the colonies were dark with a brown mass of conidia, conidia globose, covered in small warts: 4.6–5.3(6,2) × 3.3–4 µm ( Fig.3 ). This strain was in 100% similar to the Paraconiothyrium sp. isolated from the roots of Poa flabellata (Lam.) Hook from breeding colonies of albatrosses in Kidney Island in the Falkland Islands archipelago ( Hargreaves et al. 2018), accession number MN28307.

Locality: Poland, the Western Carpathians, Babia Góra Massif, endophyte of the roots of Juncus trifidus from Mt. Diablak, collected (coll.) by A. Chlebicki, strain PBgEn-19 from the root and stem, PBgEn-18 from the root.

Figures

Fig.2. Someroot endophytes isolatedfrom highland rush (Juncustrifidus L.).1 – Aureobasidium pullulans var.pullulans(after 7 days); 2 – Paraconiothyrium sp.(after 7 days); 3 – Oidiodendron griseum Robak (after 1 month); 4 – Penicillium miczynskii K.W.Zaleski (after 10 days,MEA); 5 – Penicillium miczynskii (revers); 6 – Alternariachartarum Preuss (after 3 months);7 –root endophyte,Hyaloscypha finlandica(C.J.K.Wang& H.E.Wilcox) Vohník,Fehrer & Réblová (PTEn-11); 8 – root endophyte,Hyaloscypha finlandica (PTEn-11) after 3 months; 9 – Umbelopsis autotrophica (E.H.Evans) W.Gams (after 1 month) (Photo. A.Chlebicki)

Fig. 3. Pycnothyria sp. – A, and conidia of Paraconiothyrium sp. – B (Photo. A.Chlebicki)