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Dictyosphaeriaceae
Dictyosphaeriaceae is a family of green algae. , AlgaeBase places two genera in the family: *''Dactylosphaerium'' Steinecke *''Dimorphococcopsis'' C.-C.Jao However, AlgaeBase does not include the type genus ''Dictyosphaeria ''Dictyosphaeria'' is a genus of green algae (class Ulvophyceae) in the family Siphonocladaceae. Taxonomy and nomenclature The genus ''Dictyosphaeria'' belongs to the order of Cladophorales and family Siphonocladaceae. It comprises a total o ...'' in the family. Members of the family can reproduce either asexually by use of an autospore, or sexually by fertilization of an egg by sperm. They form colonies which have a gelatinous coating. The four (or more?) daughter cells connect via filaments derived from the cell wall of the mother cell. The cell body is elliptical, spherical, or heart shaped. It has a single chloroplast which is plate-like or cup-shaped and contains a pyrenoid. References Trebouxiophyceae Chlorophyceae families Enigmatic al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimorphococcopsis
''Dimorphococcopsis'' is a genus of green algae The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ..., in the family Dictyosphaeriaceae. , the only species is ''Dimorphococcopsis fritschii''. References External links AlgaTerra databaseIndex Nominum Genericorum Trebouxiophyceae Trebouxiophyceae genera Monotypic algae genera Enigmatic algae taxa {{Chlorophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Algae
The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to properly include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae. Many species live most of their lives as single cells, while other species form coenobia (colonies), long filaments, or highly differentiated macroscopic seaweeds. A few other organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AlgaeBase
AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael Guiry. Text was copied from this source, which is available under Attribution 4.0 International (CC BY 4.0)licence. (Sehere. By 2005, the database contained about 65,000 names. In 2013, AlgaeBase and the Flanders Marine Institute (VLIZ) signed an end-user license agreement regarding the Electronic Intellectual Property of AlgaeBase. This allows the World Register of Marine Species (WoRMS) to include taxonomic names of algae in WoRMS, thereby allowing WoRMS, as part of the Aphia database, to make its overview of all described marine species more complete. Synchronisation of the AlgaeBase data with Aphia and WoRMS was undertaken manually until March 2015, but this was very time-consuming, so an online application was developed to semi-automate the synchronisation, launching in 2015 in conju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylosphaerium
''Dactylosphaerium'' is a genus of green algae The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ..., in the class Trebouxiophyceae. References External links AlgaTerra databaseIndex Nominum Genericorum Trebouxiophyceae Trebouxiophyceae genera Enigmatic algae taxa {{Chlorophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictyosphaeria
''Dictyosphaeria'' is a genus of green algae (class Ulvophyceae) in the family Siphonocladaceae. Taxonomy and nomenclature The genus ''Dictyosphaeria'' belongs to the order of Cladophorales and family Siphonocladaceae. It comprises a total of 13 taxonomically recognized species. Below is a list of taxonomically accepted species from the genus ''Dictyosphearia'': * '' Dictyosphaeria australis'' Setchell * '' Dictyosphaeria cavernosa'' (Forsskål) Børgesen * '' Dictyosphaeria enteromorpha'' Montagne & Millardet * ''Dictyosphaeria'' ''intermedia'' Weber Bosse * ''Dictyosphaeria'' ''mutica'' Yamada * ''Dictyosphaeria'' ''ocellata'' (M.Howe) Olsen-Stojkovich * ''Dictyosphaeria'' ''sericea'' Harvey * ''Dictyosphaeria'' ''spinifera'' C.K.Tseng & C.F.Chang * ''Dictyosphaeria'' ''ulvacea'' Kützing * ''Dictyosphaeria'' ''valonioides'' Zanardini * ''Dictyosphaeria'' ''versluysii'' Weber Bosse General morphological description Thalli The thalli are composed of visibl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autospore
An autospore is a non-motile (non-flagellated) aplanospore that is produced within a parent cell, and has the same shape as the parent cell, before release. Autospores, in addition to zoospore and aplanospore, are one of the three types of spores that algae use to reproduce and spread asexually. Autospores occur in several groups of algae, including Eustigmatophyceae, Dinoflagellates and green algae. For example, the colonial alga '' Dichotomococcus'' produces two autospores per reproducing cell; the autospores escape through a slit in the cell wall A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mech ... and remain attached to the mother cell. Autospore Formation An autospore is defined one of the daughter cells formed by the internal division of a single cell. Autospores are formed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trebouxiophyceae
The Trebouxiophyceae are a class of green algae, in the division Chlorophyta. Their circumscription within the green algae is not well established due to the need for more genetic studies at higher levels within the group. Genera without intervening taxonomy include: * '' Choricystis'' * '' Crucigenia'' * '' Koliellopsis'' * ''Leptosira'' * '' Rhopalosolen'' * '' Viridiella'' * ''Prototheca'' See also *List of Trebouxiophyceae genera This is a list of genera in the green algae class Trebouxiophyceae, sub-divided by order and family. Some genera have uncertain taxonomic placement and are listed as ''incertae sedis''. Ranks without accepted subordinate taxa have been omitted. ... References Green algae classes it is also the very well-known album by WUDU SJON {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyceae Families
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral or ribbon shaped in different species. Most of the members have one or more storage bodies called pyrenoids located in the chloroplast. Pyrenoids contain protein besides starch. Some green algae may store food in the form of oil droplets. They usually have a cell wall made up of an inner layer of cellulose and outer layer of pectose. General characteristics * the body may be unicellular, colonial, filamentous or multicellular. * They are usually green due to the presence of chlorophyll a, chlorophyll b and beta-carotene. * The chloroplast may be discoid, cup-shaped (e.g. ''Chlamydomonas''), spiral or ribbon shaped * Most chlorophytes have one or more storage bodies called pyrenoids (central prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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