New host associations and a novel species for the gall-inducing acacia rust genus \(\it {Ravenelia}\) in South Africa
- Trees in the genus \(\it Vachellia\) (previously \(\it Acacia\)) are commonly infected by the gall-inducing rusts \(\textit {Ravenelia macowaniana}\) and \(\textit {R. evansii}\). Rust galls bearing aecial infections and relating uredinial and telial infections on the leaves of nine Vachellia species not previously recorded to be infected by \(\textit {Ravenelia spp.}\) have recently been collected in South Africa. The rust fungi causing these infections were characterised using molecular phylogenetic analyses of DNA sequence data of the LSU and ITS rDNA regions as well as morphological examinations. The host range of \(\textit {R. macowaniana}\) and \(\textit {R. evansii}\) was thus re-assessed and extended from four to nine species and from one to three species, respectively. Application of Principal Component Analyses (PCA) of telial morphological characters provided evidence of an effect of the host species on the teliospore morphology in \(\textit {R. evansii}\), but only minor effects in \(\textit {R. macowaniana}\). A novel gall-inducing \(\textit {Ravenelia sp.}\) closely related to \(\textit {R. macowaniana}\), was found on \(\textit {Vachellia xanthophloea}\) and it is described here as \(\textit {R. xanthophloeae}\).
Author: | Malte EbinghausORCiDGND, Wolfgang MaierORCiDGND, Michael J. WingfieldGND, Dominik BegerowORCiDGND |
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URN: | urn:nbn:de:hbz:294-64508 |
DOI: | https://doi.org/10.3897/ mycokeys.43.25090 |
Parent Title (English): | MycoKeys |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2019/05/22 |
Date of first Publication: | 2018/12/04 |
Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
Tag: | Open Access Fonds; Ravenelia xanthophloeae sp. nov.; Vachellia xanthophloea aecial galls; novel host record |
Volume: | 43 |
First Page: | 1 |
Last Page: | 21 |
Note: | Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum. |
Institutes/Facilities: | Lehrstuhl für Evolution und Biodiversität der Pflanzen, Arbeitsgruppe Geobotanik |
Dewey Decimal Classification: | Naturwissenschaften und Mathematik / Biowissenschaften, Biologie, Biochemie |
open_access (DINI-Set): | open_access |
faculties: | Fakultät für Biologie und Biotechnologie |
Licence (English): | Creative Commons - CC BY 4.0 - Attribution 4.0 International |