Amesia khuzestanica and Curvularia iranica spp. nov. from Iran
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ORIGINAL ARTICLE
Amesia khuzestanica and Curvularia iranica spp. nov. from Iran Atena Safi 1 & Mehdi Mehrabi-Koushki 1,2
&
Reza Farokhinejad 1
Received: 11 August 2019 / Revised: 30 July 2020 / Accepted: 31 July 2020 # German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Results from inventories of fungi from ornamental plants in Iran are reported. Amesia khuzestanica (Chaetomiaceae) is newly described from leaves of Albizia lebbeck and Curvularia iranica (Pleosporaceae) from leaves of Bougainvillea spectabilis. Phylogenetic analyses for A. khuzestanica and other obtained Amesia species were based on the internal transcribed spacer regions 1 and 2 including the intervening 5.8S nuclear ribosomal DNA (ITS), partial β-tubulin (TUB2) and RNA polymerase II second largest subunit (RPB2) and ITS, partial glyceraldehyde-3-phosphate dehydrogenase (GPDH) and translation elongation factor 1-α (TEF1) for Curvularia isolates. The isolates of both new species formed strongly supported clades, distinct from other previously known species in the phylogenetic trees. In addition, formerly described A. atrobrunnea was isolated for the first time from leaves of B. spectabilis and A. cymbiformis from leaves of A. lebbeck and Ziziphus spina-christi. All fungal taxa were isolated from internal tissues associating leaf spots or leaf necroses. However, representative isolates of obtained species did not induce disease symptoms in pathogenicity tests. Accordingly, it is assumed that the inventoried fungi are endophytes. Keywords Jujube . Morphology . Paper flower . Silk tree . Two new species
Introduction In-depth molecular phylogenetic studies on chaetomium-like taxa led to an elucidation of various cryptic genera and species (Wang et al. 2016a, b, 2019a, b). They were based on DNA sequences of several non-linked loci including the internal transcribed spacers 1 and 2 with the intervening 5.8S nuclear ribosomal DNA (ITS), partial nuclear 28S ribosomal DNA (LSU) and partial protein encoding genes such as the βtubulin gene (TUB2), the largest subunit of the RNA polymerase II (RPB1), RNA polymerase II second largest subunit (RPB2) and translation elongation factor 1-α (TEF1) (Asgari and Zare 2011; Ahmed et al. 2016; Wang et al. 2016a, b, Section Editor: Hans-Josef Schroers Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11557-020-01612-5) contains supplementary material, which is available to authorized users. * Mehdi Mehrabi-Koushki [email protected]; [email protected] 1
Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
2
Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Khuzestan Province, Iran
2019a, b). Accordingly, 37 genera were morphologically described phylogenetically linked to Chaetomiaceae, including Achaetomium J.N. Rai, J.P. Tewari & Mukerji, Acrophialophora Edward, Amesia X. Wei Wang, Samson & Crous, Arcopilus X. Wei
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