Replicative conidiospore formation and discharge by Erynia conica and Erynia curvispora (Zygomycetes: Entomophthorales)

The fungi Erynia conica (Nowakowski) Remaudiere and Hennebert and Erynia curvispora (Nowakowski) Nowakowski (Entomophthorales) reduce black fly (Simuliidae) populations by limiting egg production and/or by killing the adults. This study examines periodicity of type 2 conidial production by E. conica...

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Bibliographic Details
Published in:Journal of invertebrate pathology 1996-09, Vol.68 (2), p.177-179
Main Authors: Nadeau, M.P. (McGill University, Ste-Anne-de-Bellevue, Quebec, Canada.), Dunphy, G.B, Boisvert, J.L
Format: Article
Language:English
Subjects:
AUXILIAIRE DE LUTTE BIOLOGIQUE
Biological and medical sciences
BIOLOGICAL CONTROL ORGANISMS
CELL CULTURE
CONIDIA
CONIDIOGENESIS
CULTIVO DE CELULAS
CULTURE DE CELLULE
DARKNESS
ERYNIA
Erynia conica
Erynia curvispora
ESPORAS
ESPORAS FUNGICAS
ESPORULACION
Freshwater
Fundamental and applied biological sciences. Psychology
FUNGAL SPORES
GERMINACION
GERMINATION
Growth, nutrition, metabolism, transports, enzymes. Molecular biology
LIGHT
LUMIERE
LUZ
Microbiology
Mycology
OBSCURIDAD
OBSCURITE
ORGANISMOS PARA CONTROL BIOLOGICO
PERIODICIDAD
PERIODICITE
PERIODICITY
PRIMARY CONIDIA
SECONDARY CONIDIA
Simuliidae
SIMULIUM
SPORE
SPORE DISCHARGE
SPORE FONGIQUE
SPORES
SPORULATION
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Summary:The fungi Erynia conica (Nowakowski) Remaudiere and Hennebert and Erynia curvispora (Nowakowski) Nowakowski (Entomophthorales) reduce black fly (Simuliidae) populations by limiting egg production and/or by killing the adults. This study examines periodicity of type 2 conidial production by E. conica and E. curvispora as a part of an infection study. Erynia conica and E. curvispora were isolated from Simulium verecundum complex and S. decorum. respectively. The data from the light and dark regimes for type 2 secondary formation suggest the importance of the photoperiod in the pattern of sporulation. The present results suggest diurnal periodicity in type 2 conidiogenesis by both fungal species in darkness, and that for E. conica, light eliminated the bimodal cycle even as type 2 secondary conidia formation remained high.
ISSN:0022-2011
1096-0805
DOI:10.1006/jipa.1996.0078