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143 Entre un importante número de hongos acuáticos que son parásitos de plantas y animales, sólo Lagenidium giganteum fue registrado como un agente potencial de control de mosquitos [1,2]. En el grupo de hongos acuáti-cos zoospóricos, se destaca además Leptolegnia chapma-nii, especie que fue descrita como patógena de larvas de mosquitos [3]. Esta especie(More)
The genus Geolegnia represents a poorly documented group of saprolegnialean oomycetes isolated from soils as free-living organisms. Although it is morphologically similar to the facultative parasitic genus Leptolegnia, Geolegnia presents the uncommon property of having lost a flagellate stage in its lifecycle. Based on ITS and large subunit (LSU) rRNA(More)
Saprolegnia bulbosa sp. nov. was isolated from floating and decaying twigs and leaves in El Gato stream, Partido de La Plata, Buenos Aires Province, Argentina. The distinctive characteristics of S. bulbosa are the product of smooth oogonia and predominantly contorted monoclinous, androgynous and diclinous antheridia. The oogonial stalks are usually bent,(More)
The Saprolegnia-Achlya clade comprises species of major environmental and economic importance due to their negative impact on aquaculture and aquatic ecosystems by threatening fishes, amphibians, and crustaceans. However, their taxonomy and phylogenetic relationships remain unresolved and suffer from many inconsistencies, which is a major obstacle to the(More)
Saprolegniaceae are ubiquitous filamentous water molds. They occur as saprotrophs or parasitic on aquatic and terrestial plants and on aquatic animals, and a number of interesting fungi belonging to the Saprolegniaceae have been isolated from the soil. In the course of an investigation of the water molds in Argentina, an unusual species of Achlya was(More)
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