Version 1
: Received: 25 March 2024 / Approved: 25 March 2024 / Online: 25 March 2024 (08:53:52 CET)
How to cite:
Salmaninezhad, F.; Mostowfizadeh-Ghalamfarsa, R.; Cacciola, S.O. Pythium banihashemianum sp. nov. and Globisporangium izadpanahii sp. nov. Two New Oomycete Species from Rice Paddies in Iran. Preprints2024, 2024031451. https://doi.org/10.20944/preprints202403.1451.v1
Salmaninezhad, F.; Mostowfizadeh-Ghalamfarsa, R.; Cacciola, S.O. Pythium banihashemianum sp. nov. and Globisporangium izadpanahii sp. nov. Two New Oomycete Species from Rice Paddies in Iran. Preprints 2024, 2024031451. https://doi.org/10.20944/preprints202403.1451.v1
Salmaninezhad, F.; Mostowfizadeh-Ghalamfarsa, R.; Cacciola, S.O. Pythium banihashemianum sp. nov. and Globisporangium izadpanahii sp. nov. Two New Oomycete Species from Rice Paddies in Iran. Preprints2024, 2024031451. https://doi.org/10.20944/preprints202403.1451.v1
APA Style
Salmaninezhad, F., Mostowfizadeh-Ghalamfarsa, R., & Cacciola, S.O. (2024). <em>Pythium banihashemianum </em>sp. nov. and <em>Globisporangium izadpanahii </em>sp. nov. Two New Oomycete Species from Rice Paddies in Iran. Preprints. https://doi.org/10.20944/preprints202403.1451.v1
Chicago/Turabian Style
Salmaninezhad, F., Reza Mostowfizadeh-Ghalamfarsa and Santa Olga Cacciola. 2024 "<em>Pythium banihashemianum </em>sp. nov. and <em>Globisporangium izadpanahii </em>sp. nov. Two New Oomycete Species from Rice Paddies in Iran" Preprints. https://doi.org/10.20944/preprints202403.1451.v1
Abstract
Investigation of oomycete diversity in rice paddies of Fars Province in Iran led to the identification of two new Pythium sensu lato (s.l.) species as Globisporangium izadpanahii sp. nov. and Pythium banihashemianum sp. nov. The identification was based on morphological and physiological features as well as the phylogenetic analysis of nuclear (ITS and βtub) and mitochondrial (cox1 and cox2) loci using Bayesian inference and Maximum Likelihood. A major characteristic of G. izadpanahii was the production of globose hyphal swellings; this species did not produce vesicles and zoospores. The present paper describes formally these two new species and defines their phylogenetic relationships with other congeneric species. According to multiple gene genealogy analysis, G. izadpanahii grouped with other species of Globisporangium in the former clade G of Pythium s.l. and was closely related to both G. nagaii and the recently described G. coniferarum. The second species, designated P. banihashemianum, grouped with other species of Pythium sensu stricto in the former clade B of Pythium s.l. and according to the phylogenetic analysis shared an ancestor with P. plurisporium. In pathogenicity tests on rice seedlings, P. banihashemianum isolates were highly pathogenic causing severe root and crown rot, while G. izadpanahii isolates were not pathogenic.
Biology and Life Sciences, Agricultural Science and Agronomy
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