Two new species of Fusarium in the F. incarnatum-equiseti species complex from Oryza sativa in Iran

被引：2

作者：

Afzalinia, Saeid ^{[1
]}

Mehrabi-Koushki, Mehdi ^{[1
,2
]}

Farokhinejad, Reza ^{[1
]}

机构：

[1] Shahid Chamran Univ Ahvaz, Fac Agr, Dept Plant Protect, Ahvaz, Khuzestan, Iran

[2] Shahid Chamran Univ Ahvaz, Biotechnol & Biosci Res Ctr, Ahvaz, Iran

来源：

ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY | 2025年 / 118卷 / 01期

关键词：

Macroconidia; Morphology; Multi-locus phylogenetic analyses; Two new species; MOLECULAR-IDENTIFICATION; PHYLOGENETIC DIVERSITY; CANKER DISEASE; RICE; SPECIATION; BAKANAE; REVEAL;

D O I：

10.1007/s10482-024-02019-y

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Identification of Fusarium species associated with diseases symptoms in plants is an important step toward understanding the ecology of plant-fungus associations. In this study, four Fusarium isolates were obtained from root rot of Oryza sativa L. in Izeh (southwest of Iran) and identified based on phylogenetic analyses combined with morphology. Phylogenetic analyses based on combined translation elongation factor 1-alpha, calmodulin, RNA polymerase II second largest subunit, and Beta-tubulin (tub2) sequence data delimited two new species, namely F. khuzestanicum and F. oryzicola spp. nov., from previously known species of Fusarium within F. incarnatum-equiseti species complex (FIESC). Morphologically, F. khuzestanicum produces the macroconidia with distinctly notched to foot-shaped basal cells, while basal cells in the macroconidia of F. oryzicola are more extended and distinctly elongated foot shape. Furthermore, these two new species are distinguished by the size of their sporodochial phialides and macroconidia. The results of the present show that the FIESC species complex represent more cryptic species.

引用

页数：13

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