ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Aquatic Microbiology
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1615096
Multigene phylogeny, morphology, and pathogenicity uncover two novel Globisporangium species (Oomycota) from freshwater habitats in northwestern Iran
Provisionally accepted
- 1Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 5375171379, Iran, Tabriz, Iran
- 2East Azarbaijan Agricultural and Natural Resources Research and Education Centre, Plant Protection Research Department, Agricultural Research, Education and Extension Organization (AREEO), 5355179854, Tabriz, Iran
- 3Bermuda Institute of Ocean Sciences, Saint George, Bermuda
- 4Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Berlin, Germany
- 5University of Potsdam, Potsdam, Germany
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During the study of oomycete biodiversity in aquatic environments of northwestern Iran (East Azarbaijan), four Globisporangium isolates were recovered from a river and irrigation canal. These isolates were identified based on multi-locus phylogenetic analyses (ITS, cox1, and cox2 genomic regions) and morphological features. As a result, two novel species were described, namely Globisporangium parvizense sp. nov. and G. sarabense sp. nov., both exhibiting unique sporangial structures and growth patterns. Pathogenicity assays on cucumber seedlings confirmed strains’ high potential to cause root and crown rot. This research highlights the diversity of Globisporangium in Iranian freshwater habitats, providing insights into its taxonomy and phylogenetic relationships. Detailed morphological descriptions and illustrations are provided for these novel species.
Keywords: Aquatic oomycetes1, plant parasites2, Pythium sensu lato3, Systematics4, Taxonomy5
Received: 20 Apr 2025; Accepted: 30 Jun 2025.
Copyright: © 2025 Ahadi, Alizadeh, Chenari Bouket, Masigol and Grossart. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Alireza Alizadeh, Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 5375171379, Iran, Tabriz, Iran
Hans-Peter Grossart, University of Potsdam, Potsdam, Germany
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