Biology:Aphanopsidaceae: Difference between revisions
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Latest revision as of 11:52, 11 February 2024
| Aphanopsidaceae | |
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| Scientific classification Error creating thumbnail: Unable to save thumbnail to destination
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Aphanopsidaceae Printzen & Rambold (1995) |
| Type genus | |
| Aphanopsis Nyl. ex P.Syd. (1887)
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| Genera | |
Aphanopsidaceae is a family of lichen-forming fungi in the order Lecanorales. It contains the genera Aphanopsis and Steinia, comprising five species.[1] The family was circumscribed in 1995 by the lichenologists Christian Printzen and Gerhard Rambold.[2]
Description
The Aphanopsidaceae family is a group of lichens characterised by their crustose (crust-like) thallus, which is the main body of the lichen. They engage in a mutualistic relationship with a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], specifically a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] type, which refers to the spherical green algae that provide the lichen with nutrients through photosynthesis.[3]
The reproductive structures of Aphanopsidaceae, known as ascomata, are [[Glossary of lichen terms#{{biology:{1}}}|apothecioid]], resembling small, open cups. These structures are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], meaning they have a reduced or almost invisible margin around the rim. The internal structure of the ascomata includes a network of paraphyses, which are branched and interconnected filaments. These paraphyses are non-amyloid, indicating they do not react to staining with iodine, a common method used to study fungal microstructures.[3]
The asci, the spore-bearing cells, have thin walls but are distinguished by a distinct apical structure that is strongly amyloid. This apical structure is plug- or tube-shaped and is part of the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], the upper part of the ascus. The shape of the asci varies from cylindrical to club-like ([[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]). Aphanopsidaceae lichens typically produce 8 to 16 spores per ascus. These [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are non-septate, meaning they lack internal divisions, and range in shape from spherical (globose) to broadly oval (ellipsoid). They are clear (hyaline) and do not react to amyloid staining. Additionally, Aphanopsidaceae have conidiomata, which are structures that produce asexual spores called conidia. These conidia are non-septate, ellipsoid in shape, and also hyaline.[3]
References
- ↑ "Aphanopsidaceae". Catalogue of Life. https://www.catalogueoflife.org/data/taxon/6JR.
- ↑ Printzen, C.; Rambold, G. (2007). "Aphanopsidaceae—A new family of lichenized ascomycetes". The Lichenologist 27 (2): 99–103. doi:10.1006/lich.1995.9998.
- ↑ 3.0 3.1 3.2 Jaklitsch, Walter; Baral, Hans-Otto; Lücking, Robert; Lumbsch, H. Thorsten (2016). Syllabus of Plant Families: Adolf Engler's Syllabus der Pflanzenfamilien. 1/2 (13 ed.). Berlin Stuttgart: Gebr. Borntraeger Verlagsbuchhandlung, Borntraeger Science Publishers. p. 282. ISBN 978-3-443-01089-8. OCLC 429208213.
Wikidata ☰ Q40704 entry
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