Abstract
BackgroundSarocladium species are frequently associated with grasses as saprobes, parasites, and mutualistic endophytes. A species of Sarocladium (anamorphic Hypocreales) was isolated as endophytic fungus from the coastal grass Spinifex littoreus (Poaceae).ResultsAccording to characterization by LSU and ITS rDNA sequences and culture morphology and micromorphology, the species differed from the species hitherto described in Sarocladium. A key to the known species of Sarocladium is given.ConclusionsSarocladium spinificis is proposed as a new species. LSU rDNA sequences and conidiophore branching and conidium size are useful characters for distinguishing between species of Sarocladium.Electronic supplementary materialThe online version of this article (doi:10.1186/1999-3110-55-25) contains supplementary material, which is available to authorized users.
Highlights
Sarocladium species are frequently associated with grasses as saprobes, parasites, and mutualistic endophytes
In 2011, according to phylogenetic analysis based on sequences of the LSU rDNA, Sarocladium was extended to include 7 species formerly placed in Acremonium (Summerbell et al, 2011)
When comparing the BLAST search results among sequences exceeding a length of 539 bp of ITS rDNA fragments, the highest similarity between our isolates and other identified Sarocladium species was 95%, namely with one strain of Sarocladium strictum (Genbank number AY428790, Saleh and Leslie, 2004) showing a similarity of 94%– 95%
Summary
Sarocladium species are frequently associated with grasses as saprobes, parasites, and mutualistic endophytes. A species of Sarocladium (anamorphic Hypocreales) was isolated as endophytic fungus from the coastal grass Spinifex littoreus (Poaceae). Results: According to characterization by LSU and ITS rDNA sequences and culture morphology and micromorphology, the species differed from the species hitherto described in Sarocladium. The genus Sarocladium was erected by Gams and Hawksworth (1976) based on a species described by Sawada in Taiwan, first including two fungal pathogens causing sheath rot of rice, with the type species Sarocladium oryzae (Sawada) W. In 2011, according to phylogenetic analysis based on sequences of the LSU rDNA, Sarocladium was extended to include 7 species formerly placed in Acremonium (Summerbell et al, 2011). Most strains have been isolated from members of Poaceae, such as bamboo, maize, rice, and other cereals and wild grasses (Gams, 1971; Gams and Hawksworth, 1976; Summerbell et al, 2011)
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