Sticta
Sticta carolinensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Peltigerales
Family: Peltigeraceae
Genus: Sticta
(Schreb.) Ach. (1803)
Type species
Sticta sylvatica
(Huds.) Ach. (1803)
Synonyms[1]
  • Diclasmia Trevis. (1869)
  • Dysticta Clem. (1909)
  • Dystictina Clem. (1909)
  • Lichen sect. Sticta Schreb. (1791)

Sticta is a genus of lichens in the family Peltigeraceae. The genus has a widespread distribution, especially in tropical areas, and includes about 114 species.[2] These lichens have a leafy appearance, and are colored brown or black. Sticta species with cyanobacteria as photobionts can fix nitrogen from the atmosphere, and due to their relative abundance and high turnover, they contribute appreciably to the rainforest ecosystem. They are commonly called spotted felt lichens.[3]

Description

The vegetative bodies of the Sticta, the thalli, are foliose, or leafy in appearance. They typically have dimensions of 2 to 5 centimetres (0.8 to 2.0 in) in diameter, although specimens with diameters of up to 10 centimetres (4 in) have been recorded. The lobes are rounded, and the upper surface is black or brown, while the lower surface has a light to dark brown layer of fine hairs (a tomentum), with a few craters, called cyphellae. Thalli often smell of shrimp or fish. The vegetative reproductive structures called isidia or soredia are often present on species in this genus; apothecia (cup-shaped spore-bearing structures) are rarely found. Sticta species are usually found growing on bark, wood, or mossy rock.[4]

Photobiont partners of Sticta species include members of the green algae genera Chloroidium, Coccomyxa, Elliptochloris, Heveochlorella, and Symbiochloris.[5]

Distribution and habitat

Sticta species are primarily tropical in distribution, but some species have been reported from as north as Norway,[6] and as far south as the southern tip of South America.[7]

Most species of Sticta grow on bark, wood, or mossy rock, usually in humid areas.[4]

Phylogenetics

Phylogenetic analysis of small and large ribosomal RNA subunits has confirmed that the genus Sticta is monophyletic.[8][9]

Indicators of ecological continuity

Some epiphytic lichen species may be used as "ancient woodland indicators"; they can used to quantitatively assess the degree to which a forest has had a long history of canopy continuity.[10] The presence of these species is a reliable indicator that the forest has existed back to early medieval times, without being clear-cut and regrown. Two Sticta species, namely, S. dufournii or the blue-green algal morphotype S. canariensis, are among several species of lichens that may be used to calculate the New Index of Ecological Continuity (NIEC), considered the most sensitive and accurate determination of forest continuity.[11]

Bioactive compounds

A comprehensive comparative study on the antioxidant activity of lichens from Hawaii and Iceland revealed the Hawaiian lichen S. weigelii to be a potent producer of antioxidative compounds.[12]

Species

Sticta caperata
Sticta fragilinata in the Great Smoky Mountains, North Carolina

References

  1. ^ "Synonymy: Sticta (Schreb.) Ach., Methodus, Sectio post. (Stockholmiæ): 275 (1803)". Species Fungorum. Retrieved 23 January 2022.
  2. ^ Kirk PM, Cannon PF, Minter DW, Stalpers JA (2008). Dictionary of the Fungi (10th ed.). Wallingford: CABI. p. 666. ISBN 978-0-85199-826-8.
  3. ^ Plant Profile for Sticta (spotted felt lichen), USDA
  4. ^ a b Geiser L, McCune B (1997). Macrolichens of the Pacific Northwest. Corvallis: Oregon State University Press. p. 277. ISBN 0-87071-394-9.
  5. ^ Sanders, William B.; Masumoto, Hiroshi (2021). "Lichen algae: the photosynthetic partners in lichen symbioses". The Lichenologist. 53 (5): 347–393. doi:10.1017/S0024282921000335.
  6. ^ Jørgensen PR. "Sticta dufourii Del. and its parasymbiont Arthonia abelonae P.M. Jørg. n. sp. in Norway". Nova Hedwigia. 18: 331–40.
  7. ^ Galloway DJ (1994). "Studies on the lichen genus Sticta (Schreber) Ach.: I. Southern South American species". The Lichenologist. 26 (3): 223–82. doi:10.1006/lich.1994.1019. S2CID 83972318.
  8. ^ Miadlikowska J, Lutzoni F (2003). "Phylogenetic classification of peltigeralean fungi (Peltigerales, Ascomycota) based on ribosomal RNA small and large subunits". American Journal of Botany. 91 (3): 449–64. doi:10.3732/ajb.91.3.449. PMID 21653401.
  9. ^ Stenroos SE, Stocker-Wörgötter I, Yoshimura L, Myllis A, Hyvönen TJ (2003). "Culture experiments and DNA sequence data confirm the identity of Lobariaphotomorphs". Canadian Journal of Botany. 81 (3): 232–47. doi:10.1139/b03-027.
  10. ^ Gilbert, pp. 70–71.
  11. ^ Gilbert, pp. 257–59.
  12. ^ Hagiwara K, Wright PR, et al. (March 2015). "Comparative analysis of the antioxidant properties of Icelandic and Hawaiian lichens". Environmental Microbiology. 18 (8): 2319–2325. doi:10.1111/1462-2920.12850. PMID 25808912.
  13. ^ a b c d e f g Moncada, Bibiana; Luecking, Robert Karl; Lumbsch, H. Thorsten (2020). "Rewriting the evolutionary history of the lichen genus Sticta (Ascomycota: Peltigeraceae subfam. Lobarioideae) in the Hawaiian islands". Plant and Fungal Systematics. 65 (1): 95–119. doi:10.35535/pfsyst-2020-0005.
  14. ^ Aptroot, André (2008). "Sticta alpinotropica, a new saxicolous lichen species from the alpine zone of Mt Wilhelm, Papua New Guinea". The Lichenologist. 40 (5): 419–422. doi:10.1017/s0024282908007834. S2CID 86179508.
  15. ^ Dal Forno, Manuela; Moncada, Bibiana; Lücking, Robert (2018). "Sticta aongstroemii, a newly recognized species in the S. damicornis morphodeme (Lobariaceae) potentially endemic to the Atlantic Forest in Brazil". The Lichenologist. 50 (6): 691–696. doi:10.1017/s0024282918000403. S2CID 91383236.
  16. ^ a b c d e f g h i j Moncada, Bibiana; Lücking, Robert (2012). "Ten new species of Sticta and counting: Colombia as a hot spot for unrecognized diversification in a conspicuous macrolichen genus". Phytotaxa. 74 (1): 1–29. doi:10.11646/phytotaxa.74.1.1.
  17. ^ a b Magain, Nicolas; Sérusiaux, Emmanuël (2015). "Dismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe". Mycological Progress. 14 (10). doi:10.1007/s11557-015-1109-0. hdl:2268/186416. S2CID 255319140.
  18. ^ a b c d e f Moncada, Bibiana; Lücking, Robert; Coca, Luis Fernando (2013). "Six new apotheciate species of Sticta (lichenized Ascomycota: Lobariaceae) from the Colombian Andes". The Lichenologist. 45 (5): 635–656. doi:10.1017/s0024282913000376. S2CID 86204092.
  19. ^ a b c d Galloway, D. J. (1998). "Studies on the lichen genus Sticta (Schreber) Ach.: V*. Australian species". Bryophyte Diversity and Evolution. 15 (1): 117–160. doi:10.11646/bde.15.1.12.
  20. ^ a b c d e f g h Mercado‐Díaz, Joel A.; Lücking, Robert; Moncada, Bibiana; Widhelm, Todd J.; Lumbsch, H. Thorsten (2020). "Elucidating species richness in lichen fungi: The genus Sticta (Ascomycota: Peltigeraceae) in Puerto Rico". Taxon. 69 (5): 851–891. doi:10.1002/tax.12320. S2CID 224979742.
  21. ^ a b McDonald, T.; Miadlikowska, J.; Lutzoni, F. (2003). "The lichen genus Sticta in the Great Smoky Mountains: A phylogenetic study of morphological, chemical, and molecular data". The Bryologist. 106 (1): 61–79. doi:10.1639/0007-2745(2003)106[0061:TLGSIT]2.0.CO;2. S2CID 56311255.
  22. ^ Lendemer, James C.; Goffinet, Bernard (2016). "Sticta deyana: A new endemic photomorphic lichen from the imperiled mid-Atlantic Coastal Plain of eastern North America". Systematic Botany. 40 (4): 933–941. doi:10.1600/036364415x689979. S2CID 131110270.
  23. ^ Nylander, W. (1861). "Expositio Lichenum Novae Caledoniae". Annales des Sciences Naturelles Botanique (in Latin). 15: 37–54.
  24. ^ Upreti, D.K.; Divakar, P.K. (2010). "A new species in the lichen genus Sticta (Schreb.) Ach. (Lobariaceae) from the Indian subcontinent". Nova Hedwigia. 90 (1–2): 251–255. doi:10.1127/0029-5035/2010/0090-0251.
  25. ^ a b c d e f g Moncada, Bibiana; Coca, Luis Fernando; Lücking, Robert (2013). "Neotropical members of Sticta (lichenized Ascomycota: Lobariaceae) forming photosymbiodemes, with the description of seven new species". The Bryologist. 116 (2): 169–200. doi:10.1639/0007-2745-116.2.169. S2CID 85891390.
  26. ^ Galloway, D.J. (1983). "New taxa in the New Zealand lichen flora". New Zealand Journal of Botany. 21 (2): 191–199. doi:10.1080/0028825X.1983.10428544.
  27. ^ Müller, J. (1888). "Lichenologische Beiträge XXVII". Flora (Regensburg). 71 (2): 17–25.
  28. ^ Øvstedal, D.O.; Gremmen, N.J.M. (2010). "New lichen species from Tristan da Cunha and Gough Island". Folia Cryptogamica Estonica. 47: 43–49.
  29. ^ Simon, A.; Goward, T.; Di Meglio, J.; Dillman, K.; Spribille, T.; Goffinet, B. (2018). "Sticta torii sp. nov., a remarkable lichen of high conservation priority from northwestern North America". Graphis Scripta. 30 (6): 105–114.
  30. ^ Suárez, Alejandra; Lücking, Robert (2013). "Sticta viviana (lichenized Ascomycota: Peltigerales: Lobariaceae), a new species from Colombian paramos". The Lichenologist. 45 (2): 153–157. doi:10.1017/s0024282912000680. S2CID 84811795.

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