Biology:Astrothelium

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Short description: Genus of lichens

Astrothelium
Astrothelium aeneum 1368620.jpg
Astrothelium aeneum found in Florida
Scientific classification e
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Trypetheliales
Family: Trypetheliaceae
Genus: Astrothelium
Eschw. (1824)
Type species
Astrothelium conicum
Eschw. (1824)
Synonyms[1]
  • Campylothelium Müll.Arg. (1883)
  • Heufleria Trevis. (1853)
  • Pyrenodium Fée (1837)

Astrothelium is a large genus of corticolous (bark-dwelling) lichens in the family Trypetheliaceae.[2] The genus is characterized by a corticate thallus and diverse ascomata structures, which can be simple, aggregated, or forming pseudostromata. Astrothelium is also notable for the carbonized walls of its ascomata, the so-called textura intricata (i.e., tightly interwoven) arrangement of cells in these walls, and various forms of distoseptate, transparent spores.

Taxonomy

The genus was circumscribed in 1824 by German botanist Franz Gerhard Eschweiler, with Astrothelium conicum assigned as the type species.[3]

Description

The thallus, or the vegetative body of Astrothelium, is corticate, meaning it is covered by a protective cortex. The ascomata, which are the fruiting bodies containing the reproductive spores, can appear in various forms such as simple, aggregated, or forming pseudostromata. These structures often differ in their composition and colour, and can be used as characters to distinguish between species. The ascomata can range from being immersed within the thallus to prominently displayed on the surface. The ostioles, or small openings that allow the release of spores, can be located at the apex or eccentrically on the ascomata and may appear as either simple or fused structures.[4]

Astrothelium is also notable for its ascomatal wall, which is made up of hyphal cells and is typically carbonized. The wall features a textura intricata, a term used to describe a tightly interwoven arrangement of cells.[4]

Within the hamathecium, the tissue that houses the asci (spore-producing structures), the cells are either clear or filled with oil droplets. The ascospores, which are the sexual spores responsible for reproduction, are distoseptate and hyaline in appearance. They can also exhibit a variety of forms, including transversely septate or muriform, reflecting their segmented or multi-cellular nature.[4]

Species

(As of January 2024), Species Fungorum accepts 267 species in Astrothelium.[5]

Astrothelium marcidum
  • Astrothelium megacrypticum Lücking, M.P.Nelsen & N.Salazar (2016)[10]
  • Astrothelium megaeneum Flakus & Aptroot (2016)[8] – Bolivia
  • Astrothelium megaleium (Kremp.) Aptroot & Lücking (2016)[4]
  • Astrothelium megalophthalmum (Müll.Arg.) Aptroot & Lücking (2016)[4]
  • Astrothelium megalostomum (Vain.) Aptroot & Lücking (2016)[4]
  • Astrothelium megaspermum (Mont.) Aptroot & Lücking (2016)[4]
  • Astrothelium megatropicum Aptroot (2016)[6]
  • Astrothelium megeustomum Aptroot & C.A.V. Fraga (2016)[7] – Brazil
  • Astrothelium megeustomurale M.Cáceres & Aptroot (2017)[9] – Brazil
  • Astrothelium meghalayense (Makhija & Patw.) Pushpi Singh & Kr.P. Singh (2015)
  • Astrothelium megochroleucum Aptroot (2016)[6]
  • Astrothelium meiophorum (Nyl.) Aptroot & Lücking (2016)[4]
  • Astrothelium meristosporoides (P.M.McCarthy & Vongshew.) Aptroot & Lücking (2016)
  • Astrothelium meristosporum (Mont. & Bosch) Aptroot & Lücking (2016)[4]
  • Astrothelium mesoduplex Aptroot & M.Cáceres (2016)[11] – Brazil
  • Astrothelium miniannulare Kalb & Aptroot (2018)[18]
  • Astrothelium minicecidiogenum Aptroot & Sipman (2019)[12] – Costa Rica
  • Astrothelium mordonialense Simijaca, Lücking & Moncada (2021)
  • Astrothelium muriconicum Aptroot & M.F.Souza (2021)
  • Astrothelium neglectum Luangsuph., Aptroot & Sangvichien (2016)
  • Astrothelium neodiplocarpum Flakus, Kukwa & Aptroot (2016)[8] – Bolivia
  • Astrothelium neogalbineum (R.C.Harris) Aptroot & Lücking (2016)[4]
  • Astrothelium neoinspersum Aptroot (2016)[6]
  • Astrothelium neovariolosum Luangsuph., Aptroot & Sangvichien (2016)
  • Astrothelium nicaraguense Lücking, M.P.Nelsen & T.Orozco (2016)[10]
Astrothelium nigratum

References

  1. ↑ "Synonymy: Astrothelium Eschw., Syst. Lich.: 26 (1824)". Species Fungorum. http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=443. 
  2. ↑ 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. ↑ Eschweiler, Franz Gerhard (1824) (in la). Systema Lichenum, Genera Exhibens rite distincta, Pluribus Novis Adaucta. Nuremberg: J.L. Schrag. pp. 18, 26. https://books.google.com/books?id=MidSAAAAcAAJ&pg=PA18. 
  4. ↑ 4.000 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010 4.011 4.012 4.013 4.014 4.015 4.016 4.017 4.018 4.019 4.020 4.021 4.022 4.023 4.024 4.025 4.026 4.027 4.028 4.029 4.030 4.031 4.032 4.033 4.034 4.035 4.036 4.037 4.038 4.039 4.040 4.041 4.042 4.043 4.044 4.045 4.046 4.047 4.048 4.049 4.050 4.051 4.052 4.053 4.054 4.055 4.056 4.057 4.058 4.059 4.060 4.061 4.062 4.063 4.064 4.065 4.066 4.067 4.068 4.069 4.070 4.071 4.072 4.073 4.074 4.075 4.076 4.077 4.078 4.079 4.080 4.081 4.082 4.083 4.084 4.085 4.086 4.087 4.088 4.089 4.090 4.091 4.092 4.093 4.094 4.095 4.096 4.097 4.098 4.099 4.100 Aptroot, André; Lücking, Robert (2016). "A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales)". The Lichenologist 48 (6): 763–982. doi:10.1017/s0024282916000487. 
  5. ↑ "Astrothelium". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/62DR2. 
  6. ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.24 6.25 6.26 6.27 6.28 6.29 6.30 6.31 6.32 6.33 6.34 6.35 6.36 Aptroot, André; Ertz, Damien; Etayo Salazar, Javier Angel; Gueidan, Cécile; Mercado Diaz, Joel Alejandro; Schumm, Felix; Weerakoon, Gothamie (2016). "Forty-six new species of Trypetheliaceae from the tropics". The Lichenologist 48 (6): 609–638. doi:10.1017/s002428291600013x. 
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 Aptroot, André; Mendonça, Cléverton de Oliveira; Andrade, Danyelly Santos; Silva, Jeanne dos Reis; Martins, Suzana Maria de Azevedo; Gumboski, Emerson; Fraga, Carlos Augusto Vidigal; Cáceres, Marcela Eugenia da Silva (2016). "New Trypetheliaceae from northern and southern Atlantic rainforests in Brazil". The Lichenologist 48 (6): 713–725. doi:10.1017/s0024282916000037. 
  8. ↑ 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 8.10 8.11 Flakus, Adam; Kukwa, Martin; Aptroot, André (2016). "Trypetheliaceae of Bolivia: an updated checklist with descriptions of twenty-four new species". The Lichenologist 48 (6): 661–692. doi:10.1017/S0024282915000559. 
  9. ↑ 9.0 9.1 9.2 9.3 9.4 9.5 da Silva Cáceres, Marcela Eugenia; Aptroot, André (2017). "Lichens from the Brazilian Amazon, with special reference to the genus Astrothelium". The Bryologist 120 (2): 166–182. doi:10.1639/0007-2745-120.2.166. 
  10. ↑ 10.00 10.01 10.02 10.03 10.04 10.05 10.06 10.07 10.08 10.09 10.10 10.11 10.12 10.13 Lücking, Robert; Nelsen, Matthew P.; Aptroot, André; Benatti, Michel Navarro; Binh, Nguyen Quoc; Gueidan, Cecile; Gutiérrez, Martha Cecilia; Jungbluth, Patricia et al. (2016). "A pot-pourri of new species of Trypetheliaceae resulting from molecular phylogenetic studies". The Lichenologist 48 (6): 639–660. doi:10.1017/S0024282916000475. 
  11. ↑ 11.00 11.01 11.02 11.03 11.04 11.05 11.06 11.07 11.08 11.09 11.10 11.11 11.12 11.13 11.14 11.15 11.16 11.17 11.18 11.19 11.20 11.21 11.22 Aptroot, André; Cáceres, Marcela Eugenia da Silva (2016). "New Trypetheliaceae from the Amazon basin in Rondônia (Brazil), the centre of diversity of the genus Astrothelium". The Lichenologist 48 (6): 693–712. doi:10.1017/s0024282915000584. https://www.researchgate.net/publication/311503074. 
  12. ↑ 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 Aptroot, André; Sipman, Harrie J.M.; Barreto, Flávia Maria Oliveira; Nunes, Ariel Dantas; Cáceres, Marcela Eugenia da Silva (2019). "Ten new species and 34 new country records of Trypetheliaceae". The Lichenologist 51 (1): 27–43. doi:10.1017/s002428291800052x. 
  13. ↑ 13.0 13.1 Kukwa, Martin; Rodriguez-Flakus, Pamela; Aptroot, André; Flakus, Adam (2023). "Two new species of Astrothelium from Sud Yungas in Bolivia and the first discovery of vegetative propagules in the family Trypetheliaceae (lichen-forming Dothideomycetes, Ascomycota)". MycoKeys 95: 83–100. doi:10.3897/mycokeys.95.98986. PMID 37251997. 
  14. ↑ 14.0 14.1 14.2 14.3 Junior, Isaias Oliveira; Aptroot, André; da Silva Cáceres, Marcela Eugenia (2021). "Lichens from Monte Pascoal, Bahia, Brazil, with some new pyrenocarpous species and a key to the Pyrenula species from Brazil". The Bryologist 124 (4): 552–568. doi:10.1639/0007-2745-124.4.552. 
  15. ↑ Córdova-Chávez, Octavio; Aptroot, André; Castillo-Camposa, Gonzalo; Cáceres, Marcela Eugenia da Silva; Pérez-Pérez, Rosa Emilia (2014). "Three new lichen species from cloud forest in Veracuz, Mexico". Cryptogamie, Mycologie 35 (2): 157–162. doi:10.7872/crym.v35.iss2.2014.157. 
  16. ↑ 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 Aptroot, André; de Souza, Maria Fernanda; dos Santos, Lidiane Alves; Junior, Isaias Oliveira; Barbosa, Bruno Micael Cardoso; da Silva, Marcela Eugenia Cáceres (2022). "New species of lichenized fungi from Brazil, with a record report of 492 species in a small area of the Amazon Forest". The Bryologist 125 (3): 435–467. doi:10.1639/0007-2745-125.3.433. 
  17. ↑ 17.0 17.1 da Silva Cáceres, Marcela Eugenia; Aptroot, André (2016). "First inventory of lichens from the Brazilian Amazon in Amapá State". The Bryologist 119 (3): 250–265. doi:10.1639/0007-2745-119.3.250. 
  18. ↑ 18.0 18.1 18.2 Kalb, Klaus; Aptroot, André (2018). "New lichen species from Brazil and Venezuela". The Bryologist 121 (1): 56–66. doi:10.1639/0007-2745-121.1.056. 

Wikidata ☰ Q4811721 entry



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