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Studies in Heterobasidiomycetes, Part 38 *) Sphacelotheca polygoni‐persicariae G. Demi & Oberw. spec. nov.
Author(s) -
Deml G.,
Oberwinkler F.,
Bauer R.
Publication year - 1985
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1985.tb00081.x
Subject(s) - biology , botany , polygonaceae , ustilago , genus , polygonum , smut , ecology , biochemistry , gene
A new species, Sphacelotheca polygoni‐persicariae , parasitizing the ovaries of Polygonum persicaria L. is described. This smut, collected several times in Madeira, Portugal, differs from other species of that genus, by its host plant and the reticulated teliospore ornamentation. On the basis of the morphological and ultrastructural characters of S. polygoni‐persicariae , in connection with some recently published data on siderophore formation and 5S ribosomal RNA sequences it can be assumed that 1) members of the genus Sphacelotheca are separated from typical Ustilago species of Poaceae, 2) Sphacelotheca is restricted to species parasitizing Polygonaceae, and 3) species of Sphacelotheca and Microhotryum as well as those Ustilago species which parasitize in the flowers of Polygonaceae are closely related.