Journal article
Two new species of the Fusarium solani species complex isolated from compost and hibiscus (Hibiscus sp.)

Publication Details
Sisic, A.; Al-Hatmi, A.; Bacanovic, J.; Ahmed, S.; Dennenmoser, D.; Hoog, G.; Finckh, M.
Publication year:
Antonie van Leeuwenhoek
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Two new species in the Fusarium solani
species complex (FSSC) are described and introduced. The new taxa are
represented by German isolates CBS 142481 and CBS 142480 collected from
commercial yard waste compost and vascular tissue of a wilting branch of
hibiscus, respectively. The phylogenetic relationships of the collected
strains to one another and within the FSSC were evaluated based on DNA
sequences of 6 gene loci. Due to the limited sequence data available for
reference strains in GenBank, however, a multi-gene phylogenetic
analysis included partial sequences for the internal transcribed spacer
region and intervening 5.8S nrRNA gene (ITS), translation elongation
factor 1-alpha (tef1) and the RNA polymerase II second largest subunit
(rpb2). Morphological and molecular phylogenetic data independently
showed that these strains are distinct populations of the FSSC, nested
within Clade 3. Thus, we introduce Fusarium~stercicola and Fusarium
witzenhausenense as novel species in the complex. In addition, 19 plant
species of 7 legume genera were evaluated for their potential to host
the newly described taxa. Eighteen plant species were successfully
colonized, with 6 and 9 of these being symptomatic hosts for F.
stercicola and F.~witzenhausenense, respectively. As plants of the
family Fabaceae are very distant to the originally sourced material from
which the new taxa were recovered, our results suggest that F.
stercicola and F.~witzenhausenense are not host-specific and are
ecologically fit to sustain stable populations in variety of habitats.

Last updated on 2021-20-01 at 12:00