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Fusarium amaranthi sp. nov. from Amaranth Is an Emergent Species Closely Related to F. circinatum .
- Source :
-
Plant disease [Plant Dis] 2024 Aug; Vol. 108 (8), pp. 2297-2302. Date of Electronic Publication: 2024 Jul 12. - Publication Year :
- 2024
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Abstract
- Amaranth ( Amaranthus spp. L) is not native to South Korea but is cultivated in small scales for ornamental purposes as well as leafy vegetables and pseudo cereals. In this study, a new species within the genus Fusarium was isolated from amaranth, showing stem rot symptoms from a farmer field in Hwaseong, South Korea. The disease is characterized by dark-brown spots with black borders, leading to withering. Phylogenetic analysis-based concatenated sequences of translation elongation factor 1-alpha ( TEF1 ), beta-tubulin ( tub 2), calmodulin ( cmd A), RNA polymerase largest subunit ( RPB 1), and RNA polymerase II second largest subunit ( RPB 2) genes revealed that the obtained isolates formed a distinct clad within the Fusarium fujikuroi species complex and is closely related to F . circinatum . Cultural and morphological characteristics and pathogenicity on healthy amaranth plants (stem and leaves) were examined. The isolates readily differentiated from F. circinatum based on one- to five-septate macroconidia and the absence of sterile hyphae. Based on molecular and morphological characteristics, this fungus is demonstrated to be a new species and is described here as F. amaranthi , the causal agent of stem rot of amaranth in South Korea.<br />Competing Interests: The author(s) declare no conflict of interest.
Details
- Language :
- English
- ISSN :
- 0191-2917
- Volume :
- 108
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Plant disease
- Publication Type :
- Academic Journal
- Accession number :
- 38537143
- Full Text :
- https://doi.org/10.1094/PDIS-10-23-2187-SC