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- Q3837939 subject Q8772616.
- Q3837939 abstract "Sordaria fimicola is a species of microscopic fungus. It is commonly found in the feces of herbivores. Sordaria fimicola is often used in introductory biology and mycology labs because it is easy to grow on nutrient agar in dish cultures. The genus Sordaria, closely related to Neurospora and Podospora, is a member of the large class Pyrenomycetes, or flask-fungi. The natural habitat of the three species of Sordaria that have been the principal subjects in genetic studies is dung of herbivorous animals. The species S. fimicola is common and worldwide in distribution. The species of Sordaria are similar morphologically, producing black perithecia containing asci with eight dark ascospores in a linear arrangement. These species share a number of characteristics that are advantageous for genetic studies. They all have a short life cycle, usually 7–12 days, and are easily grown in culture. Most species are self-fertile and each strain is isogenic. All kinds of mutants are easily induced and readily obtainable with particular ascospore color mutants. These visual mutants aid in tetrad analysis, especially in analysis of intragenic recombination.The most common form of S. fimicola is a dark brown. Certain mutants are grey or tan. A common experiment for an introductory biology lab class is to cross one of the mutant types with a wild type and observe the ratio of coloring in the offspring. This experiment illustrates the concepts of genetic inheritance in a haploid organism. The eight ascospores are produced inside an ascus. Sordaria squashes can give us information about crossing over during meiosis. If no crossing over then there is a 4:4 pattern. 4 black spores, and 4 tan spores all lined up. If crossing over does occur there is a 2:2:2:2 pattern visible, or a 2:4:2 pattern.Another common lab use is to observe meiosis and mitosis in the fruit bodies, called perithecia. An interesting feature of S. fimicola is that its fruit body is phototrophic. Thus, as it grows the stalk will bend toward a light source and when the sac bursts, the spores are shot towards the light.".
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- Q3837939 class Q174726.
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- Q3837939 genus Q7563381.
- Q3837939 kingdom Q764.
- Q3837939 phylum Q174726.
- Q3837939 thumbnail Sordaria_fimicola_perithecium_(tan_mutant)_40X.png?width=300.
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- Q3837939 binomialAuthority "Ces. & De Not.".
- Q3837939 classis Q174726.
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- Q3837939 genus "Sordaria".
- Q3837939 phylum Q174726.
- Q3837939 regnum Q764.
- Q3837939 type Eukaryote.
- Q3837939 type Fungus.
- Q3837939 type Species.
- Q3837939 type Thing.
- Q3837939 type Q19088.
- Q3837939 comment "Sordaria fimicola is a species of microscopic fungus. It is commonly found in the feces of herbivores. Sordaria fimicola is often used in introductory biology and mycology labs because it is easy to grow on nutrient agar in dish cultures. The genus Sordaria, closely related to Neurospora and Podospora, is a member of the large class Pyrenomycetes, or flask-fungi.".
- Q3837939 label "Sordaria fimicola".
- Q3837939 depiction Sordaria_fimicola_perithecium_(tan_mutant)_40X.png.