Improvizations on conidial themes

Sutton, B. C.

doi:10.1016/s0007-1536(86)80115-2

Cited by 20 publications

(5 citation statements)

References 53 publications

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“…Notes : The type of No. devonianum was erroneously assigned to Trichofusarium rusci ( Sutton, 1986 ) and recombined in Fusarium ( Fusarium rusci , Geiser et al. 2013 ).…”

Section: Resultsmentioning

confidence: 99%

Fusarium: more than a node or a foot-shaped basal cell

Crous¹,

Lombard²,

Sandoval-Denis³

et al. 2021

Studies in Mycology

153

133

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Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae . Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae . Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris ). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium . Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae . Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae ( e.g. , Cosmosporella , Macroconia , Microcera ). In this study four new genera are introduced, along with 18 new species and 16 new combinations. These names convey information about relationships, morphology, and ecological preference that would otherwise be lost in a broader definition of Fusarium . To assist users to correctly identify fusarioid genera and species, we introduce a new online identification database, Fusarioid-ID, accessible at www.fusarium.org . The database comprises partial sequences from multiple genes commonly used to identify fusarioid taxa ( ...

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“…Notes : The type of No. devonianum was erroneously assigned to Trichofusarium rusci ( Sutton, 1986 ) and recombined in Fusarium ( Fusarium rusci , Geiser et al. 2013 ).…”

Section: Resultsmentioning

confidence: 99%

Fusarium: more than a node or a foot-shaped basal cell

Crous¹,

Lombard²,

Sandoval-Denis³

et al. 2021

Studies in Mycology

153

133

View full text Add to dashboard Cite

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“…Nag Raj (1993) reiterates the views of Gregory (1952) and Sutton (1986) that the possession of any structure is evidence that it has some function, in the case of conidia by the mechanisms for their liberation, dispersal, and deposition. Coelomycete conidia are predominantly slime-spores and thus not subject to dispersal by wind, and so splash liberation and insects are considered the primary method of dispersal.…”

Section: Function Of Appendaged Spores and Their Role In Attachmentmentioning

confidence: 95%

Form and function of fungal spore appendages

Jones

2006

Mycoscience

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“…Conidia of T. bactrodesmioides have darkly pigmented middle septa (black-banded) and a single oblique septum in the apical and basal cells (Sutton 1986), but the new fungus has no such septa. Other coelomycetous genera with versicolored conidia include Neohendersonia Petr., Toxosporiopsis B. Sutton & Sellar, and Scolicosporium Lib.…”

Section: Versicolorisporium Triseptatummentioning

confidence: 99%

Bambusicolous fungi in Japan (7): a new coelomycetous genus, Versicolorisporium

Hatakeyama¹,

Tanaka

Harada³

2008

Mycoscience

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A new genus, Versicolorisporium, is established for the coelomycetous fungus collected in Japan on dead culms of the bamboos Pleioblastus chino and Sasamorpha borealis. The type species of the genus, V. triseptatum, is characterized by the production of holoblastic, 3-septate, obovoid, versicolored conidia. Versicolorisporium is similar to Toxosporiella, Neohendersonia, Toxosporiopsis, and Scolicosporium in having versicolored conidia, but differs from these genera by the uniloculate pycnidial conidiomata with a periphysate ostiole, lacking paraphyses, and the conidia without black-banded septa. A BLAST search using LSU nrDNA sequence indicates that the new genus is a member of Pleosporales, Dothideomycetes.

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Improvizations on conidial themes

Cited by 20 publications

References 53 publications

Fusarium: more than a node or a foot-shaped basal cell

Fusarium: more than a node or a foot-shaped basal cell

Form and function of fungal spore appendages

Bambusicolous fungi in Japan (7): a new coelomycetous genus, Versicolorisporium

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