J
Johannes Z. Groenewald
Researcher at Utrecht University
Publications - 322
Citations - 30762
Johannes Z. Groenewald is an academic researcher from Utrecht University. The author has contributed to research in topics: Mycosphaerella & Genus. The author has an hindex of 86, co-authored 312 publications receiving 25154 citations. Previous affiliations of Johannes Z. Groenewald include University of California, Berkeley & University of Mauritius.
Papers
More filters
Journal ArticleDOI
Seiridium (Sporocadaceae) : an important genus of plant pathogenic fungi
TL;DR: A phylogeny of Seiridium was constructed based on four loci, namely the ITS rDNA region, and partial translation elongation factor 1-alpha (TEF), β-tubulin (TUB) and RNA polymerase II core subunit (RPB2), and it was able to confirm that S. unicorne and S. cupressi represent different species.
Journal ArticleDOI
Is morphology in Cercospora a reliable reflection of generic affinity
TL;DR: P phylogenetic inferences based on partial gene sequences of the LSU, ITS, ACT, TEF1-α and HIS loci, elucidated a cercospora-like taxon from Ammi majus to cluster in a clade apart from Cercosporoid s.
Journal ArticleDOI
Porocercospora seminalis gen. et comb. nov., the causal organism of buffalograss false smut.
TL;DR: In the present study the phylogenetic position of C. seminalis is clarified based on DNA sequence analysis of three loci namely the internal transcribed spacer (ITS) region, partial nuclear ribosomal large sub unit (LSU) and partial sequences of the RNA polymerase II second largest subunit (RPB2).
Journal ArticleDOI
Pyrigemmula, a novel hyphomycete genus on grapevine and tree bark
TL;DR: Aerobiological studies showed that the spores are infrequent in the air, whereas their concentration increased with higher atmospheric pressure, and the type species of a number of allied genera of hyphomycetes are compared.
Journal ArticleDOI
New foliicolous species of Cladosporium from South America.
TL;DR: Two new species of Cladosporium found on necrotic needles of Pinus ponderosa trees in Patagonia, Argentina, are described as C. chubutense and C. pini-ponderosae, which differ from each other and other known species by multilocus sequence data, phenetic characters and culture characteristics.