Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures

The aquatic oomycete fungus Leptolegnia chapmanii Seymour is pathogenic to mosquito larvae, but it has been little studied since it was first isolated. Although studies have been performed on different biological isolates of L. chapmanii around the world, they were made on zoospores and a very littl...

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Autores principales: Pelizza, Sebastián Alberto, Scorsetti, Ana Clara, López Lastra, Claudia Cristina, García, Juan José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146106
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id I19-R120-10915-146106
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Ciencias Naturales
Aedes aegypti
Leptolegnia chapmanii
Mosquitoes
Oospores
Oogonia
spellingShingle Biología
Ciencias Naturales
Aedes aegypti
Leptolegnia chapmanii
Mosquitoes
Oospores
Oogonia
Pelizza, Sebastián Alberto
Scorsetti, Ana Clara
López Lastra, Claudia Cristina
García, Juan José
Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
topic_facet Biología
Ciencias Naturales
Aedes aegypti
Leptolegnia chapmanii
Mosquitoes
Oospores
Oogonia
description The aquatic oomycete fungus Leptolegnia chapmanii Seymour is pathogenic to mosquito larvae, but it has been little studied since it was first isolated. Although studies have been performed on different biological isolates of L. chapmanii around the world, they were made on zoospores and a very little or even nothing is known about the sexual stage (oogonia and oospores), which allows L. chapmanii to remain in the environment when conditions are not favorable. The main objective of this study was to determine the relationship between temperature and time of onset of L. chapmanii oogonia and oospores in Ae. aegypti larvae. Leptolegnia chapmanii-infected IV instar Ae. aegypti larvae were incubated at different temperatures between 5 and 45°C and photoperiod-controlled for 90 days. The number of oogonia and oospores was examined daily for each tested temperature. As was expected, low temperatures extended the times of oogonia formation, as much as seven times. Likewise, temperatures significantly affect the number of oogonia produced.
format Articulo
Articulo
author Pelizza, Sebastián Alberto
Scorsetti, Ana Clara
López Lastra, Claudia Cristina
García, Juan José
author_facet Pelizza, Sebastián Alberto
Scorsetti, Ana Clara
López Lastra, Claudia Cristina
García, Juan José
author_sort Pelizza, Sebastián Alberto
title Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
title_short Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
title_full Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
title_fullStr Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
title_full_unstemmed Production of oogonia and oospores of Leptolegnia chapmanii Seymour (Straminipila: Peronosporomycetes) in Aedes aegypti (L.) larvae at different temperatures
title_sort production of oogonia and oospores of leptolegnia chapmanii seymour (straminipila: peronosporomycetes) in aedes aegypti (l.) larvae at different temperatures
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/146106
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