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Actinomycetota
The ''Actinomycetota'' (or ''Actinobacteria'') are a phylum of all gram-positive bacteria. They can be terrestrial or aquatic. They are of great economic importance to humans because agriculture and forests depend on their contributions to soil systems. In soil they help to decompose the organic matter of dead organisms so the molecules can be taken up anew by plants. While this role is also played by fungi, ''Actinomycetota'' are much smaller and likely do not occupy the same ecological niche. In this role the colonies often grow extensive mycelia, like a fungus would, and the name of an important order of the phylum, ''Actinomycetales'' (the actinomycetes), reflects that they were long believed to be fungi. Some soil actinomycetota (such as '' Frankia'') live symbiotically with the plants whose roots pervade the soil, fixing nitrogen for the plants in exchange for access to some of the plant's saccharides. Other species, such as many members of the genus ''Mycobacterium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coriobacteriia
The ''Coriobacteriia'' are a class of Gram-positive bacteria within the Actinomycetota phylum.Ludwig, W., Euzéby, J., Schumann, P., Busse, H. J., Trujillo, M. E.,Kämpfer, P. & Whitman, W. B. (2012). Road map of the phylum Actinobacteria. In: Bergey's Manual of Systematic Bacteriology, pp. 1–28. Eds. M. Goodfellow, P. Ka¨mpfer, H. J. Busse, M. E. Trujillo, K. Suzuki, W. Ludwig & W. B. Whitman. Springer-:New YorkClavel T, Lepage P & Charrier C. (2014). The family Coriobacteriaceae. In: The Prokaryotes, pp. 201-238. Springer-:Berlin Heidelberg Species within this group are nonsporulating, strict or facultative anaerobes that are capable of thriving in a diverse set of ecological niches. '' Gordonibacter'' species are the only members capable of motility by means of flagella within the class. Several species within the ''Coriobacteriia'' class have been implicated with human diseases that range in severity. '' Atopobium'', '' Olsenella'', and ''Cryptobacterium'' species have re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram-positive Bacteria
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bacteria take up the crystal violet stain used in the test, and then appear to be purple-coloured when seen through an optical microscope. This is because the thick peptidoglycan layer in the bacterial cell wall retains the stain after it is washed away from the rest of the sample, in the decolorization stage of the test. Conversely, gram-negative bacteria cannot retain the violet stain after the decolorization step; alcohol used in this stage degrades the outer membrane of gram-negative cells, making the cell wall more porous and incapable of retaining the crystal violet stain. Their peptidoglycan layer is much thinner and sandwiched between an inner cell membrane and a bacterial outer membrane, causing them to take up the counterstain ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitriliruptoria
The Nitriliruptoria are a class of Actinomycetota, which contains five species distributed across orders. Phylogeny The species of ''Nitriliruptoria'' exhibit the following phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ... relationships: References Actinomycetota Bacteria classes {{Actinobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubrobacteria
''Rubrobacteria'' is a class of Actinomycetota. Phylogeny Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). * Order Rubrobacterales Suzuki et al. 1989 ** Family Rubrobacteraceae Rainey et al. 1997 *** Genus ''Rubrobacter ''Rubrobacter'' is a genus of Actinomycetota. It is radiotolerant and may rival ''Deinococcus radiodurans'' in this regard. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN ...'' Rainey et al. 1997 **** '' R. aplysinae'' Kämpfer et al. 2014 **** '' R. bracarensis'' Jurado et al. 2013 **** '' R. calidifluminis'' Albuquerque et al. 2014 **** '' R. indicoceani'' Chen et al. 2018 **** '' R. marinus'' Chen et al. 2020 **** '' R. naiadicus'' Albuquerque et al. 2014 **** '' R. radiotolerans'' (Yoshinaka, Yano & Yamaguchi 1973) Suzuki et al. 1989 **** '' R. spartan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acidimicrobiia
The ''Acidimicrobiia'' are a class of Actinomycetota, in which three families, eight genera, and nine species have been described, ''Acidimicrobium ferrooxidans'' is the type species of the order. Phylogeny Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). * Order " Actinomarinales" Ghai et al. 2013 ** Family " Actinomarinaceae" Ghai et al. 2013 *** Genus "''Candidatus'' Actinomarina" Ghai et al. 2013 * Order Acidimicrobiales Stackebrandt, Rainey & Ward-Rainey 1997 ** Genus ?'' Acidithiomicrobium'' Davis-Belmar & Norris 2009 ** Family Acidimicrobiaceae Stackebrandt, Rainey & Ward-Rainey 1997 *** Genus ?'' Acidiferrimicrobium'' González et al. 2020 *** Genus ?'' Aciditerrimonas'' Itoh et al. 2011 *** Genus '' Acidimicrobium'' Clark & Norris 1996 *** Genus "''Acidithrix''" Kay et al. 2013/Jones & Johnson 2015 *** Genus '' Ferrimicrobium'' Johnson et ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermoleophilia
The ''Thermoleophilia'' are a class of Actinomycetota. Phylogeny Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ... (NCBI). * Order Gaiellales Albuquerque et al. 2012 ** Family Gaiellaceae Albuquerque et al. 2012 * Order Miltoncostaeales Li et al. 2021 ** Family Miltoncostaeaceae Li et al. 2021 * Order Solirubrobacterales Reddy and Garcia-Pichel 2009 ** Family Baekduiaceae An et al. 2019 ** Family Conexibacteraceae Stackebrandt 2005 ** Family Paraconexibacteraceae Chun et al. 2020 ** Family Parviterribacteraceae Foesel et al. 2015b ** Family Patulibacteraceae Takahashi et al. 2006 ** Family Solirubrob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungus
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, 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 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 organisms, named the ''Eumycota'' (''tru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankia
''Frankia'' is a genus of nitrogen-fixing bacteria that live in symbiosis with actinorhizal plants, similar to the ''Rhizobium'' bacteria found in the root nodules of legumes in the family Fabaceae. ''Frankia'' also initiate the forming of root nodules. This genus was originally named by Jørgen Brunchorst, in 1886 to honor the German biologist Albert Bernhard Frank. Brunchorst considered the organism he had identified to be a filamentous fungus. redefined the genus in 1970 as containing prokaryotic actinomycetes and created the family Frankiaceae within the Actinomycetales. He retained the original name of ''Frankia'' for the genus. Overview Most ''Frankia'' strains are specific to different plant species. The bacteria are filamentous and convert atmospheric nitrogen into ammonia via the enzyme nitrogenase, a process known as nitrogen fixation. They do this while living in root nodules on actinorhizal plants. The bacteria can supply most or all of the nitrogen requirements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinomycetales
The Actinomycetales is an order of Actinomycetota. A member of the order is often called an actinomycete. Actinomycetales are generally gram-positive and anaerobic and have mycelia in a filamentous and branching growth pattern. Some actinomycetes can form rod- or coccoid-shaped forms, while others can form spores on aerial hyphae. Actinomycetales bacteria can be infected by bacteriophages, which are called actinophages. Actinomycetales can range from harmless bacteria to pathogens with resistance to antibiotics. Reproduction Actinomycetales have 2 main forms of reproduction: spore formation and hyphae fragmentation. During reproduction, Actinomycetales can form conidiophores, sporangiospores, and oidiospores. In reproducing through hyphae fragmentation, the hyphae formed by Actinomycetales can be a fifth to half the size of fungal hyphae, and bear long spore chains. Presence and associations Actinomycetales can be found mostly in soil and decaying organic matter, as well as in l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinomycetia
The Actinomycetia are a class of bacteria. Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). * Acidothermales Sen et al. 2014 * Actinomycetales Buchanan 1917 (Approved Lists 1980) * Actinopolysporales Goodfellow and Trujillo 2015 * Bifidobacteriales Stackebrandt et al. 1997 * Catenulisporales Donadio et al. 2015 * Cryptosporangiales Nouioui et al. 2018 * Frankiales Sen et al. 2014 * Geodermatophilales Sen et al. 2014 * Glycomycetales Labeda 2015 * Jatrophihabitantales Salam et al. 2020 * Jiangellales Tang et al. 2015 * Kineosporiales Kämpfer 2015 * Micrococcales Prévot 1940 (Approved Lists 1980) * Micromonosporales Genilloud 2015 * Mycobacteriales Janke 1924 (Approved Lists 1980) * Nakamurellales Sen et al. 2014 * Propionibacteriales (Rainey et al. 1997) Patrick and McDowell 2015 * Pseudonocardiales Labeda and Goodfellow 2015 * Sporichthyales Nou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Niche
In ecology, a niche is the match of a species to a specific environmental condition. Three variants of ecological niche are described by It describes how an organism or population responds to the distribution of resources and competitors (for example, by growing when resources are abundant, and when predators, parasites and pathogens are scarce) and how it in turn alters those same factors (for example, limiting access to resources by other organisms, acting as a food source for predators and a consumer of prey). "The type and number of variables comprising the dimensions of an environmental niche vary from one species to another ndthe relative importance of particular environmental variables for a species may vary according to the geographic and biotic contexts". See also Chapter 2: Concepts of niches, pp. 7 ''ff'' A Grinnellian niche is determined by the habitat in which a species lives and its accompanying behavioral adaptations. An Eltonian niche emphasizes that a sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colony (biology)
In biology, a colony is composed of two or more conspecific individuals living in close association with, or connected to, one another. This association is usually for mutual benefit such as stronger defense or the ability to attack bigger prey. Colonies can form in various shapes and ways depending on the organism involved. For instance, the bacterial colony is a cluster of identical cells (clones). These colonies often form and grow on the surface of (or within) a solid medium, usually derived from a single parent cell. Colonies, in the context of development, may be composed of two or more unitary (or solitary) organisms or be modular organisms. Unitary organisms have determinate development (set life stages) from zygote to adult form and individuals or groups of individuals (colonies) are visually distinct. Modular organisms have indeterminate growth forms (life stages not set) through repeated iteration of genetically identical modules (or individuals), and it can be diffi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
