Two new Botryosphaeria (Botryosphaeriales, Botryosphaeriaceae) species in China

MycoKeys. 2022 Nov 11:94:1-16. doi: 10.3897/mycokeys.94.91340. eCollection 2022.

Abstract

Five ascomycetous strains were isolated from dead branches and leaves of Salix (Salicaceae) and Osmanthusfragrans (Oleaceae), respectively. BLAST searches with ITS sequences in GenBank suggested a high degree of similarity to Botryosphaeriadothidea. To accurately identify these strains, we further analysed their morphological characteristics of asci, ascospores, all conidiophore cells and conidia. Phylogenetic relationships, based on ITS, rpb2, tef1 and tub2 gene sequences, confirmed our strains represented two novel species, which are introduced here as B.salicicola and B.osmanthuse spp. nov.

Keywords: Ascomycetes; molecular analyses; morphology; new species; new woody host.

Grants and funding

This research is supported by the following projects: National Natural Science Foundation of China (No. 31972222, 31660011), Program of Introducing Talents of Discipline to Universities of China (111 Program, D20023), Talent project of Guizhou Science and Technology Cooperation Platform ([2017]5788-5, [2019]5641, [2019]13), Guizhou Science, Technology Department of International Cooperation Base project ([2018]5806), the project of Guizhou Provincial Education Department ([2020]001), and Guizhou Science and Technology Innovation Talent Team Project ([2020]5001). Alan JL Phillips acknowledges the support from UIDB/04046/2020 and UIDP/04046/2020 Centre grants from FCT, Portugal (to BioISI).