Abstract
The genus Xenodidymella includes eight species that are mainly plant pathogens causing different diseases worldwide. During a survey on plant diseases in Khuzestan province in southwestern Iran, seven isolates of Xenodidymella were obtained from symptomatic plants, including Brassica oleracea var. capitata, Callistemon citrinus, Corchorus olitorius, Coriandrum sativum, Glycyrrhiza lepidota, and Ziziphus mauritiana. A multi-locus phylogenetic analysis based on the internal transcribed spacer regions 1 and 2 including the 5.8S nuclear ribosomal DNA (ITS), partial β-tubulin (tub2), and RNA polymerase II second largest subunit (rpb2), combined with morphology, was used to identify the isolates. Accordingly, the novel species Xenodidymella iranica is introduced and characterized here along with five new hosts for X. glycyrrhizicola. In pathogenicity tests, X. iranica and three strains of X. glycyrrhizicola are known as pathogenic on host plants from where they were originally isolated.
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Data availability
The data that support the findings of this study are openly available in GenBank at https://www.ncbi.nlm.nih.gov, MycoBank at https://www.mycobank.org/, and TreeBase at http://purl.org/phylo/treebase/phylows/study/TB2:S28277.
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This work was financially supported by grant (SCU.AP99.294) from Research Council of Shahid Chamran University of Ahvaz.
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S. Akram Ahmadpour carried out sample preparation, fungal isolation and purification, pathogenicity experiments, morphometric and morphological determination, and DNA isolation and amplification. Mehdi Mehrabi-Koushki carried out the design and implementation of the research, DNA and phylogenetic analysis, and the writing of the manuscript. Two other authors, Reza Farokhinejad and Bita asgari, contributed to the implementation of the research and the revising of the manuscript.
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Ahmadpour, S.A., Mehrabi-Koushki, M., Farokhinejad, R. et al. Xenodidymella iranica sp. nov. and new hosts of X. glycyrrhizicola in Iran. Trop. plant pathol. 47, 430–441 (2022). https://doi.org/10.1007/s40858-022-00491-3
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DOI: https://doi.org/10.1007/s40858-022-00491-3