Entomophthora muscae Resting Spore Formation in Vivo in the Host Delia radicum

2000 ◽  
Vol 76 (2) ◽  
pp. 127-130 ◽  
Author(s):  
Lene Thomsen ◽  
Jørgen Eilenberg
Keyword(s):  
Spore Formation ◽  
Delia Radicum ◽  
Entomophthora Muscae ◽  
Resting Spore

Formation and germination of resting spores from different strains from the Entomophthora muscae complex produced in Musca domestica

2001 ◽  
Vol 79 (9) ◽  
pp. 1076-1082 ◽  
Author(s):  
Lene Thomsen ◽  
José Bresciani ◽  
Jørgen Eilenberg
Keyword(s):  
Musca Domestica ◽  
House Fly ◽  
Spore Production ◽  
Spore Formation ◽  
Entomophthora Muscae ◽  
Resting Spore ◽  
Resting Spores ◽  
Group B ◽  
Different Strains

Three species within the Entomophthora muscae (Cohn) Fresenius complex (Entomophthora schizophorae Keller & Wilding, E. muscae s.str., and E. muscae "group B") were investigated for resting spore formation in vivo in the house fly (Musca domestica L.). Resting spores of E. muscae group B were experimentally induced from August to the beginning of February, while no resting spores were ever observed in E. schizophorae infected M. domestica or in flies infected by E. muscae s.str. originating from M. domestica. When newly dead fly cadavers containing E. muscae group B resting spores were kept moist, cystidia emerged from the abdomen; this is the first report of cystidia in the genus Entomophthora. Resting spore production was significantly affected by both temperature and E. muscae group B strain. More infected flies formed resting spores when kept 1 week at 10°C compared with constant exposure at 22°C, but the tendency of the different E. muscae group B strains to form resting spores persisted with shifting temperatures. After 4 months of incubation under natural winter conditions in Denmark, E. muscae group B resting spores germinated on water agar at 20°C with a 16 h light : 8 h dark photoperiod within 1 week, but no germ conidia were observed.Key words: Entomophthorales, Entomophthora muscae complex, Diptera, Musca domestica, resting spore formation, resting spore germination.

First report of Pandora neoaphidis resting spore formation in vivo in aphid hosts

2012 ◽  
Vol 116 (2) ◽  
pp. 196-203 ◽  
Author(s):  
Ana Clara Scorsetti ◽  
Annette Bruun Jensen ◽  
Claudia López Lastra ◽  
Richard A. Humber
Keyword(s):  
Spore Formation ◽  
First Report ◽  
Resting Spore ◽  
Pandora Neoaphidis

scholarly journals Entomophthovirus: An insect-derived iflavirus that infects a behavior manipulating fungal pathogen of dipterans

2018 ◽  
Author(s):  
Maxwell C. Coyle ◽  
Carolyn N. Elya ◽  
Michael Bronski ◽  
Michael B. Eisen
Keyword(s):  
Fungal Pathogen ◽  
Rna Virus ◽  
Delia Radicum ◽  
Sequencing Data ◽  
Entomophthora Muscae ◽  
Positive Strand Rna Virus ◽  
Close Relatives ◽  
Positive Strand Rna

AbstractWe discovered a virus infecting Entomophthora muscae, a behavior-manipulating fungal pathogen of dipterans. The virus, which we name Entomophthovirus, is a capsid-forming, positive-strand RNA virus in the viral family iflaviridae, whose known members almost exclusively infect insects. We show that the virus RNA is expressed at high levels in fungal cells in vitro and during in vivo infections of Drosophila melanogaster, and that virus particles are present in E. muscae. Two close relatives of the virus had been previously described as insect viruses based on the presence of viral genomes in transcriptomes assembled from RNA extracted from wild dipterans. By analyzing sequencing data from these earlier reports, we show that both dipteran samples were co-infected with E. muscae. We also find the virus in RNA sequencing data from samples of two other species of dipterans, Musca domestica and Delia radicum, known to be infected with E. muscae. These data establish that Entomophthovirus is widely, and seemingly obligately, associated with E. muscae. As other members of the iflaviridae cause behavioral changes in insects, we speculate on the possibility that Entomophthovirus plays a role in E. muscae involved host manipulation.

scholarly journals In vivo endogenous spore formation by Coxiella burnetii in Q fever endocarditis.

1994 ◽  
Vol 47 (11) ◽  
pp. 978-981 ◽  
Author(s):  
T F McCaul ◽  
A J Dare ◽  
J P Gannon ◽  
A J Galbraith
Keyword(s):  
Coxiella Burnetii ◽  
Q Fever ◽  
Spore Formation
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