Comparative transcriptomics of growth metabolism and virulence reveal distinct morphogenic profiles of yeast-like cells and hyphae of the fungus Metarhizium rileyi
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Comparative transcriptomics of growth metabolism and virulence reveal distinct morphogenic profiles of yeast-like cells and hyphae of the fungus Metarhizium rileyi. / Sant́Anna Iwanicki, Natasha; Delalibera Júnior, Italo; de Carvalho, Lana L.B.; Eilenberg, Jørgen; De Fine Licht, Henrik H.
In: Fungal Genetics and Biology, Vol. 164, 103766, 2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Comparative transcriptomics of growth metabolism and virulence reveal distinct morphogenic profiles of yeast-like cells and hyphae of the fungus Metarhizium rileyi
AU - Sant́Anna Iwanicki, Natasha
AU - Delalibera Júnior, Italo
AU - de Carvalho, Lana L.B.
AU - Eilenberg, Jørgen
AU - De Fine Licht, Henrik H.
N1 - Publisher Copyright: © 2022 The Author(s)
PY - 2023
Y1 - 2023
N2 - Metarhizium rileyi is an entomopathogenic fungus with a narrow host range which distinguishes it from other Metarhizium species with broad host ranges. This species is also unique because the initial yeast-like growth on solid media is only observed in liquid culture in other Metharizium species. A lack of knowledge about the metabolism and genetic signatures of M. rileyi during this yeast-like phase on solid and in liquid media is a bottleneck for its large-scale production as a commercial biocontrol agent. In this study we found that M. rileyi yeast-like cells produced on solid medium infected and killed the important insect pest Spodoptera frugiperda with comparable efficiency as yeast-like cells grown in liquid medium. Secondly, we used comparative transcriptomic analysis to investigate the active genes and genomic signatures of the M. rileyi yeast-like morphotypes produced on solid and in liquid media. Yeast-like cells grown in liquid medium had upregulated genes relating specifically to signal transduction and particular membrane transporters. Thirdly, we compared the transcriptomic profiles of yeast-like phases of M. rileyi with those of M. anisopliae. The yeast-like phase of M. rileyi grown on solid medium upregulated unique genes not found in other Metarhizium species including specific membrane proteins and several virulence factors. Orthologous genes associated with heat shock protein, iron permease, membrane proteins and key virulence traits (e.g. collagen-like protein Mcl1) were upregulated in both species. Comparative transcriptome analyses of gene expression showed more differences than similarities between M. anisopliae and M. rileyi yeast-like cells.
AB - Metarhizium rileyi is an entomopathogenic fungus with a narrow host range which distinguishes it from other Metarhizium species with broad host ranges. This species is also unique because the initial yeast-like growth on solid media is only observed in liquid culture in other Metharizium species. A lack of knowledge about the metabolism and genetic signatures of M. rileyi during this yeast-like phase on solid and in liquid media is a bottleneck for its large-scale production as a commercial biocontrol agent. In this study we found that M. rileyi yeast-like cells produced on solid medium infected and killed the important insect pest Spodoptera frugiperda with comparable efficiency as yeast-like cells grown in liquid medium. Secondly, we used comparative transcriptomic analysis to investigate the active genes and genomic signatures of the M. rileyi yeast-like morphotypes produced on solid and in liquid media. Yeast-like cells grown in liquid medium had upregulated genes relating specifically to signal transduction and particular membrane transporters. Thirdly, we compared the transcriptomic profiles of yeast-like phases of M. rileyi with those of M. anisopliae. The yeast-like phase of M. rileyi grown on solid medium upregulated unique genes not found in other Metarhizium species including specific membrane proteins and several virulence factors. Orthologous genes associated with heat shock protein, iron permease, membrane proteins and key virulence traits (e.g. collagen-like protein Mcl1) were upregulated in both species. Comparative transcriptome analyses of gene expression showed more differences than similarities between M. anisopliae and M. rileyi yeast-like cells.
KW - Blastospores
KW - Entomopathogenic fungi
KW - Fungal dimorphism
KW - Liquid culture fermentation
U2 - 10.1016/j.fgb.2022.103766
DO - 10.1016/j.fgb.2022.103766
M3 - Journal article
C2 - 36513262
AN - SCOPUS:85144387392
VL - 164
JO - Fungal Genetics and Biology
JF - Fungal Genetics and Biology
SN - 1087-1845
M1 - 103766
ER -
ID: 334662264