By G H Boerema, J de Gruyter, M E Noordeloos, M E C Hamers
Phoma is a genus of fungi in the Coelomycetes. those fungi are normally and often recovered in tradition from all ecological events, yet are very tricky to spot. there was a good desire for a realistic guide to help such identity, and this ebook will fill that hole. It offers line drawings and keys for the id of universal pathogenic and saprotrophic species of Phoma in vitro, with references to extra diagnostic literature and documentation of the varied synonyms previously utilized in the phytopathological literature.
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Additional info for Phoma Identification Manual: Differentiation of Specific and Infra-specific Taxa in Culture (Cabi Publishing)
Microsphaeropsis glumarum (Ellis & Tracy) Boerema ≡ Phoma glumarum Ellis & Tracy ≡ Phyllosticta glumarum (Ellis & Tracy) I. ) Boerema et al. (sect. Peyronellaea, D); see Boerema et al. (1973: 136) and Boerema (2003). In the introduction it was noted that species with secondary conidial septation [universal in section Phyllostictoides (E), but also occurring in other sections, especially in the large-sized conidial dimorph of species in section Heterospora (B) (synanamorph Stagonosporopsis)], were often formerly placed in a pycnidial genus that always produces septate conidia, in vivo and in vitro: Notes on ‘Adjacent’ or ‘Convergent’ Genera 27 Ascochyta Lib.
For synonymy of the spermogonial anamorph see Boerema (2003). For descriptions see Klebahn (1905). Pyrenochaeta De Not. (Fig. 5C) Globose ostiolate pycnidia, thick- or thin-walled with abundant setae around the ostiole, but fewer over the rest of the pycnidium. Conidia always arising from long filiform conidiophores, branched at the base and multiseptate. Teleomorphs, where known, usually belong to Herpotricha Fuckel; see Schneider (1976) and Sutton (1980). Most of the more than 120 taxa described in the genus Pyrenochaeta have only simple, discrete conidiogenous cells and belong to Phoma sect.
Phoma 41 43. a. Crystals present esp. on OA and MA; colonies on OA colourless to buff, with radially arranged rows of greyish pycnidia. Ph. ] b. 44 44. a. Colonies colourless to greenish olivaceous to dull green, outer margin light green. Usually abundant production of pycnidia with 1–5 non-papillate ostioles. Ph. ] b. 45 45. a. Colonies with ochre, primrose or yellow tinges (golden coloured), esp. on MA. Pycnidia with one ostiole, non-papillate or slightly papillate. Ph. aurea [Isolated from a dead stem of Medicago polymorpha in New Zealand.