Pre-invasion assessment on African invasive grasses revealed five new species of ergot fungi, Claviceps section Pusillae

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F22%3A00565490" target="_blank" >RIV/61388971:_____/22:00565490 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10457503

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1878614622001088?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1878614622001088?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.funbio.2022.09.004" target="_blank" >10.1016/j.funbio.2022.09.004</a>

Result language

angličtina

Original language name

Pre-invasion assessment on African invasive grasses revealed five new species of ergot fungi, Claviceps section Pusillae

Original language description

Ergot, the genus Claviceps comprises several deeply diverged lineages, recently classified as sections. Among them, the section Pusillae, is the most speciose, with a centre of distribution in Africa but occurring worldwide, often as a consequence of its invasive potential. This section includes the most severe plant pathogens such as Claviceps africana and C. gigantea, responsible for toxicoses and a significant reduction in the seed yields of Sorghum and Zea. In this study we surveyed ergot diversity in South Africa, focusing on grasses native to this region, but known for their high potential of invasiveness. The revision based on molecular and phenotypic markers revealed 16 species, with a high proportion of undescribed diversity, confirming Africa as a hot spot for this section. Five new species, Claviceps tulasnei, Claviceps eulaliae, Claviceps hypertheliae, Claviceps fredericksoniae and Claviceps arundinellae were described from Setaria, Eulalia, Hyperthelia, Miscanthus and Arundinella respectively. Claviceps texensis infecting Cenchrus, previously only identified from the same host in Texas, USA, was confirmed to be present in Africa, which is assumed to be its primary area of distribution. In addition, the host grass genus Anthephora is newly reported as a host of Claviceps digitariae. The most of the taxa were negligible concerning alkaloid production, with the exception of C. fredericksoniae, which is a sister of potent alkaloid producer C. africana, and produces mainly DH-ergosine, together with traces of DH-ergocornine. The host/parasite associations within Pusillae section is very narrow, suggesting that co-speciation is the major speciation driver in this group. Host grasses of the described species are already recognised invasive species and their ovarial parasites need to be monitored. This is highlighted by the fact that all Pusillae produced air-borne secondary conidia, which is autapomorphy of this section and considered to be important for their invasive abilities.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10606 - Microbiology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fungal Biology

ISSN

1878-6146

e-ISSN

1878-6162

Volume of the periodical

126

Issue of the periodical within the volume

11-12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

752-763

UT code for WoS article

000899200100006

EID of the result in the Scopus database

2-s2.0-85139846862