Saprolegnia

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Saprolegnia
Saprolegnia sp. under the light microscope, oogonium and zygotes
Systematics
Domain : Eukaryotes (Eucaryota) Empire : Stramenopile (Stramenopila) Department : Egg mushrooms Order : Saprolegniales Family : Saprolegniaceae Genre : Saprolegnia
Scientific name
Saprolegnia
Nees (1823)

Saprolegnia , also "water mold " or "fish mold " is a genus of egg fungi . It lives in the water on dead plants and animals,but also parasitizes on weakened fish and then has a cotton ball-like appearance. It tolerates a temperature range of 3 to 33 ° C, but feels more comfortable at lower temperatures. Saprolegnia isrelatively easy to spotunder the microscope due to the long, transparent hyphae .

With the help of DNA analyzes , taxonomic groups ( MOTUs ) can be differentiated, which enables species to be defined. This confirmed 18 species and identified a further 11 potential species.

Examples

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  Sea trout died on Saprolegnia

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  Currently infested trout

Web links

Commons : Saprolegnia  - collection of images, videos and audio files

• more information and pictures
• further information and an illustration of a life cycle
• Video: Sexual reproduction of Saprolegnia mixta (Saprolegniaceae) . Institute for Scientific Film (IWF) 1971, made available by the Technical Information Library (TIB), doi : 10.3203 / IWF / C-1079 .
• Video: Asexual reproduction of Saprolegnia mixta (Saprolegniaceae) . Institute for Scientific Film (IWF) 1971, made available by the Technical Information Library (TIB), doi : 10.3203 / IWF / C-1080 .

Individual evidence

1. ^ Roland L. Seymour: The genus Saprolegnia. In: Nova Hedwigia , 19, No. 1 & 2, 1970, pp. 1-124.
2. ↑ Jose Vladimir Sandoval-Sierra, Maria P. Martín, Javier Diéguez-Uribeondo: Species identification in the genus Saprolegnia (Oomycetes): defining DNA-based molecular operational taxonomic units. In: Fungal Biol. , 118, No. 7, July 2014, pp. 559-578, doi : 10.1016 / j.funbio.2013.10.005 .