Pleosporales - CBS - KNAW
Pleosporales - CBS - KNAW
Pleosporales - CBS - KNAW
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Fungal Diversity<br />
Fig. 74 Phaeosphaeria oryzae<br />
(from S nr F9572, F9573, lectotype).<br />
a Appearance of ascomata<br />
on the host surface. b<br />
Section of an ascoma. c Squash<br />
mount showing asci in pseudoparaphyses.<br />
Note that asci with<br />
short pedicels. d, e Asci with<br />
short pedicels. F, G. Light<br />
brown 3-septate ascospores.<br />
Scale bars: a=100 μm, b–g=<br />
10 μm<br />
morphological characters of Phaeosphaeriopsis species is<br />
more diverse than those of Paraphaeosphaeria sensu<br />
stricto or Neophaeosphaeria, the ITS sequences are more<br />
similar to each other than those of the other two genera<br />
(Câmara et al. 2003). Currently, Phaeosphaeriopsis comprises<br />
seven species, namely P. agavensis (A.W. Ramaley,<br />
M.E. Palm & M.E. Barr) M.P.S. Câmara, M.E. Palm & A.<br />
W. Ramaley, P. amblyospora A.W. Ramaley, P. glaucopunctata,<br />
P. musae Arzanlou & Crous, P. nolinae (A.W.<br />
Ramaley) M.P.S. Câmara, M.E. Palm & A.W. Ramaley, P.<br />
obtusispora (Speg.) M.P.S. Câmara, M.E. Palm & A.W.<br />
Ramaley and P. phacidiomorpha (Ces.) D.F. Farr & M.E.<br />
Palm (http://www.mycobank.org/, 06/2010).<br />
Phylogenetic study<br />
The generic type of Phaeosphaeriopsis, P. glaucopunctata,<br />
located in Phaeosphaeriaceae based on SSU rDNA<br />
sequences (Câmara et al. 2003). Phaeosphaeriopsis musae<br />
is also shown to belong to Phaeosphaeriaceae in recent<br />
phylogenetic studies (Schoch et al. 2009; Plate 1).<br />
Concluding remarks<br />
None.<br />
Platysporoides (Wehm.) Shoemaker & C.E. Babc., Can. J.<br />
Bot. 70: 1648 (1992). (Pleosporaceae)<br />
≡ Pleospora subgenus Platysporoides Wehmeyer, A<br />
World Monograph of the genus Pleospora and its Segregates,<br />
p. 236. 1961.<br />
Generic description<br />
Habitat terrestrial, saprobic? Ascomata small, scattered,<br />
immersed, semi-immersed to nearly superficial, globose,<br />
subglobose, black, smooth; apex with a protruding<br />
papilla and pore-like ostiole, without periphyses. Perid-