Pestalotiopsis

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(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)