Biology:Elenkiniana
Elenkiniana is a genus of lichen-forming fungi in the family Teloschistaceae.[1] It has three species,[2] all of which occur in Eurasia.[3]
Taxonomy
The genus was circumscribed in 2014 by the lichenologists Sergey Kondratyuk, Ingvar Kärnefelt, John Elix, Arne Thell, and Jae-Seoun Hur. Elenkiniana gloriae is assigned as the type species. The genus name honours the Russian botanist, Alexander Elenkin, "in acknowledgement of his many contributions on cryptogams in northern Eurasia".[3]
According to the authors, Elenkiniana shares similarities with the genus Gyalolechia (formerly known as Fulgensia before Arup and colleagues' 2013 revision of the Teloschistaceae[4]) but is distinguished by its typically lobate thalli, laminal pseudocyphellae across the thallus surface, and the absence of numerous crystals in the cortical layer and [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] inclusions in the hymenium.[3] Despite this, the work "The 2016 classification of lichenized fungi", did not accept Elenkiniana, considering it instead synonymous with Gyalolechia.[5] A similar opinion was expressed by Wilk and colleagues in 2021, who in their work preferred to maintain Arup et al.'s original 2013 classification pending additional research.[6]
Description
Genus Elenkiniana is distinguished by its [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] thallus, with hues ranging from yellow to bright orange or reddish orange. The thalli have pseudocyphellae, which are small, porous areas on the lichen surface that facilitate gas exchange. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] of Elenkiniana is described as [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], indicating a structured arrangement of cells that resembles a palisade and is tightly woven.[3]
The apothecia (fruiting bodies) of Elenkiniana are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] in form, meaning they have a margin that is similar in colour and texture to the thallus. Within these structures, the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] (the rim of tissue enclosing the spore-producing layer) is very thin and often indistinct. [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] (containing two compartments separated by a partition with a hole), and there are typically eight spores per ascus. The conidia, a type of asexual spore, range from [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] (rod-like) to narrowly bacilliform in shape.[3]
A distinctive feature of Elenkiniana lichens is their chemical reaction to a solution of potassium hydroxide (i.e., the K+ spot test), turning purple upon contact. This reaction is due to the presence of anthraquinones, specifically those of the parietin and fragilin [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], as well as depsidones.[3]
Species
- Elenkiniana ehrenbergii (Müll.Arg.) S.Y.Kondr., Kärnefelt, Elix, A.Thell, Jung Kim, A.S.Kondr. & Hur (2014)
- Elenkiniana gloriae (Llimona & Werner) S.Y.Kondr., Kärnefelt, Elix, A.Thell, Jung Kim, A.S.Kondr. & Hur (2014)
- Elenkiniana gomerana (J.Steiner) S.Y.Kondr., Kärnefelt, Elix, A.Thell, Jung Kim, A.S.Kondr. & Hur (2014)
References
- ↑ "Elenkiniana". Species 2000: Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/62QG7.
- ↑ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K. et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. https://www.researchgate.net/publication/358798332.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Kondratyuk, S.Y.; Jeong, M.-H.; Yu, N.-N.; Kärnefelt, I.; Thell, A.; Elix, J.A.; Kim, J.; Kondratiuk, A.S. et al. (2014). "A revised taxonomy for the subfamily Caloplacoideae (Teloschistaceae, Ascomycota) based on molecular phylogeny". Acta Botanica Hungarica 56 (1–2): 93–123. doi:10.1556/abot.56.2014.1-2.10.
- ↑ Arup, Ulf; Søchting, Ulrik; Frödén, Patrik (2013). "A new taxonomy of the family Teloschistaceae". Nordic Journal of Botany 31 (1): 16–83. doi:10.1111/j.1756-1051.2013.00062.x. Bibcode: 2013NorJB..31...16A.
- ↑ Lücking, Robert; Hodkinson, Brendan P.; Leavitt, Steven D. (2017). "The 2016 classification of lichenized fungi in the Ascomycota and Basidiomycota–Approaching one thousand genera". The Bryologist 119 (4): 361–416 [391]. doi:10.1639/0007-2745-119.4.361.
- ↑ Wilk, Karina; Pabijan, Maciej; Saługa, Marta; Gaya, Ester; Lücking, Robert (2021). "Phylogenetic revision of South American Teloschistaceae (lichenized Ascomycota, Teloschistales) reveals three new genera and species". Mycologia 113 (2): 278–299. doi:10.1080/00275514.2020.1830672. PMID 33428561. https://ruj.uj.edu.pl/xmlui/handle/item/278402.
Wikidata ☰ Q43061347 entry
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