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Lichinomycetes
Lichinales is the sole order (biology), order of ascomycete fungi in the class Lichinomycetes. It contains three family (biology), families: Gloeoheppiaceae (3 genus, genera), Lichinaceae (43 genera), and Peltulaceae (1 genus). Most species are lichenized. Lichinales was proposed in 1986 by German lichenologists Aino Henssen and Burkhard Büdel. The class Lichinomycetes was created by Valérie Reeb, François Lutzoni and Claude Roux in 2004. A study published in late 2022 suggests that six class (biology), classes of fungi, Candelariomycetes, Coniocybomycetes, Geoglossomycetes, Lichinomycetes, Sareomycetes, and Xylonomycetes, are all part of a clade that has a sister group, sister relationship with a clade containing Lecanoromycetes and Eurotiomycetes. Lichinomycetes is the oldest name among these orders, and so the authors used this name for the group. Phylogenomic analysis of a 481-genome set showed that as a group, the Lichinomycetes have relatively small genomes, and fewer met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peltulaceae
''Peltula'' is a genus of small dark brown to olive or dark grey squamulose lichens. These lichens typically grow on rocks in arid and semi-arid environments worldwide. They consist of a fungus living in symbiosis with a photosynthetic partner, specifically a cyanobacterium of the genus '' Chroococcidiopsis''. ''Peltula'' is the only genus in the family Peltulaceae, which belongs to the Lichinomycetes, a class of fungi that form lichens. The genus includes about 50 recognised species, which exhibit a variety of growth forms ranging from flat and crust-like to more complex, leaf-like structures. ''Peltula'' lichens play important ecological roles in harsh environments, contributing to soil stability and nutrient cycling. To cope with their challenging habitats, ''Peltula'' species have evolved various adaptations. These include specialised protective layers and the ability to withstand both drought and flooding. The thalli of ''Peltula'' lichens are typically small, with a stratifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichina Pygmaea
''Lichina'' is a genus of lichen-forming fungi in the family Lichinaceae. The genus contains four marine species. These cyanolichens include species such as '' L. pygmaea'' or '' L. confinis'', in which the associated cyanobiont has been assigned to the genus '' Rivularia''. Furthermore, evidence of a high specificity of each mycobiont towards particular cyanobiont lineages in both species has been detected. Taxonomy ''Lichina'' was circumscribed by the Swedish botanist Carl Adolph Agardh in 1817. He assigned ''Lichina pygmaea'' as the type species. This lichen was originally described by John Lightfoot in 1777 as ''Fucus pygmaea'' in his work '' Flora Scotica''. Description ''Lichina'' species form characteristic black fruiting thalli associated with cyanobacteria. They often create distinguishable bands in the intertidal and supralittoral zones of rocky coastal areas in temperate and cold regions of both hemispheres. The thalli are typically dwarf-, with branches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloeoheppiaceae
Gloeoheppiaceae is a family of ascomycete fungi in the order Lichinales. The family contains ten species distributed amongst three genera. Most species are lichenised with cyanobacteria. Species in this family are mostly found in desert areas. Modern molecular phylogenetics analysis casts doubt on the phylogenetic validity of the family, suggesting a more appropriate placement of its species in the family Lichinaceae. Taxonomy The family was circumscribed in 1995 by the German lichenologist Aino Henssen. Her research corroborated the findings of Marton & Galun (1981) and provided additional support for the distinction between the genera ''Gloeoheppia'' and '' Heppia'', initially suggested by Vilmos Kőfaragó-Gyelnik in 1935. Henssen observed that the unique paraphyses of ''Heppia'', with a base comprising short cells, align closely with characteristics found in genera of the family Coccocarpiaceae. This is further evidenced by the presence of thick (female reproductive struct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichinaceae
The Lichinaceae are a family of ascomycete fungi. Most species are lichenized with cyanobacteria, and have a distribution largely in temperate regions. Taxonomy The family was circumscribed in 1854 by Finnish lichenologist William Nylander. His description of the family mentioned the obscure brown thallus resembling algae, with an overall morphology described as either filamentous or tufted (fruticose). The fruiting structures, the apothecia, are described as either endocarpous or biatorine. He included two tribes in the Lichinaceae: ''Ephebeae'', which contained the genera ''Ephebe'' and ''Gonionema'', and ''Lichineae'', which contained '' Lichina'', the type genus. In 1986, Aino Henssen and Burkhard Büdel proposed the order Lichinales to contain the Lichinaceae. In the 1980s and 1990s, several taxonomic and nomenclatural studies were the basis for the revision of many of the species in the family. Heppiaceae was a family proposed by Alexander Zahlbruckner in 1906 to co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coniocybomycetes
The Coniocybaceae are the sole family of lichen-forming fungi in the Coniocybales, which itself is the only order in the class Coniocybomycetes. Taxonomy The family was circumscribed by Heinrich Gottlieb Ludwig Reichenbach in 1837. Both the order and the class were proposed by Maria Prieto and Mats Wedin in 2013 after molecular phylogenetics analysis of various calicioid lichens showed that the Coniocybaceae represented an early diverging lineage in the inoperculate ascomycetes. Description Coniocybomycetes lichens form symbiotic relationships with various types of green algae, including '' Dictyochloropsis'', '' Stichococcus'', '' Trentepohlia'', and members of the group. The most distinctive feature of these lichens is their stalked reproductive structures called apothecia. These structures have a spherical to cone-shaped head () and contain a powdery mass of spores called a , which can range from brown to pale in colour. The apothecia's outer protective layer () varies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xylonomycetes
The Xylonomycetes are a class of fungi, which holds 2 orders of ''Symbiotaphrinales'' , and ''Xylonales'' . History During a culture-based survey of living sapwood and leaves of rubber trees (''Hevea'' spp.) in remote forests of Peru. Multilocus phylogenetic analyses reveal that this new lineage came from the radiation of the '' Leotiomyceta'' class which generated several other classes including Arthoniomycetes, Dothideomycetes, Eurotiomycetes, Geoglossomycetes, Lecanoromycetes, Leotiomycetes, Lichinomycetes and Sordariomycetes. Due to the unique morphological, physiological, and ecological traits relative to known endophytes, ''Xylonomycetes'' was deemed unique enough to be separate. Within the superclass of Pezizomycotina, the 6 classes (including Pezizomycetes and Orbiliomycetes) were monophyletic apart from Xylonomycetes. Xylonomycetes, Eurotiomycetes and Dothideomycetes were deemed to have had a single origin. They contain unspecific peroxygenases (UPO) enzymes which c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one of the kingdom (biology)#Six kingdoms (1998), traditional eukaryotic kingdoms, along with Animalia, Plantae, and either Protista or Protozoa and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascomycete
Ascomycota is a phylum of the kingdom Fungi that, together with the Basidiomycota, forms the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. It is the largest phylum of Fungi, with over 64,000 species. The defining feature of this fungal group is the " ascus" (), a microscopic sexual structure in which nonmotile spores, called ascospores, are formed. However, some species of Ascomycota are asexual and thus do not form asci or ascospores. Familiar examples of sac fungi include morels, truffles, brewers' and bakers' yeast, dead man's fingers, and cup fungi. The fungal symbionts in the majority of lichens (loosely termed "ascolichens") such as '' Cladonia'' belong to the Ascomycota. Ascomycota is a monophyletic group (containing all of the descendants of a common ancestor). Previously placed in the Basidiomycota along with asexual species from other fungal taxa, asexual (or anamorphic) ascomycetes are now identified and classified based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Orders
A lichen ( , ) is a hybrid colony of algae or cyanobacteria living symbiotically among filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. . Lichens are the lifeform that first brought the term symbiosis (as ''Symbiotismus'') into biological context. Lichens have since been recognized as important actors in and producers which many higher trophic feeders feed on, such as reindeer, gastropods, nematodes, mites, and springtails. Lich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
