Pestalotiopsis
From Species-ID
(This information is currently a stub.)
The genus Pestalotiopsis was created by Steyaert (1949) to accommodate the five-celled conidial forms of Pestalotia De Not. 1839
Related genera (see also Sutton (1980), Nag Raj (1993) and Jeewon & al. (2002)):
- Colored/dark median cells:
- Truncatella having 4-celled conidia, apical appendages multiple and usually irregularly branched
- Seimatosporium having 4-celled conidia and single apical appendage plus excentric basal appendage
- Pestalotiopsis having 5-celled conidia, with 3-4 pigmented median cells, 2-4 apical appendages, 0-1 basal, unbranched, centric appendage
- Note: several species in Nag Raj (1993) are 4-celled: P. besseyi, P. casuarinae, P. citrina, P. eupyrena, P. stevensonii - contradicting the general definition - to be revised
- Monochaetia: having 5-celled conidia, euseptate median cells, single apical appendage
- Pestalotia having 6-celled conidia
- Seiridium having 6-celled conidia, with 4 pigmented median cells, distoseptate
- Hyaline (colorless) median cells:
- Bartalinia: 5-celled conidia, usually 2 apical appendages that branch once.
- Discosia: median cells almost hyaline, single basal appendage at the concave side of basal cell, single apical cell. Jeewon & al. (2002) also state "rounded apical cell".
Revision STATUS: The statements still need to be verified in Nag Raj and Sutton!
References
- Jeewon, Rajesh; Liew, Edward C.Y. & Hyde, Kevin D. 2002. Phylogenetic relationships of Pestalotiopsis and allied genera inferred from ribosomal DNA sequences and morphological characters. Molecular Phylogenetics and Evolution 25: 378–392.
- To add:
- Steyaert (1949), Sutton (1980), Nag Raj (1993)