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Bryopsidales
Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nucleate cells consisting of cytoplasm contained within a cylindrical cell wall. There are no septae, and the many discoid chloroplasts, nuclei and other organelles are free to move through the organism. The whole organism may consist of a single cell; in the genus '' Caulerpa'', this single cell may be several metres across. In the genus ''Halimeda'', whole seabed meadows may consist of an individual, single-celled organism connected by filamentous threads running through the substrate. Reproduction Propagation is normally vegetative from small fragments which grow into new individuals. Under certain conditions, sexual reproduction occurs in a process called ''holocarpy''. Almost all of the cytoplasm in the thallus is converted into bifla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Udoteaceae
Udoteaceae is a family of green algae, in the order Bryopsidales. Description Udoteaceae is a family of green algae that belongs to the order Bryopsidales. Udoteaceae are most abundant in reef ecosystems as it serves an important ecological role as a primary producer, contributor to carbonate fluxes, and it serves as protection or food for other marine organisms. Udoteaceae is the most morphologically complex family belonging to the order Bryopsidales. Along with its high morphological complexity, Udoteaceae also has high species diversity. There are fourteen genera, eight extant, belonging to the family Udoteaceae, however only four are officially accepted. There are twenty-four species belonging to these genera, however because genetic information on Udoteaceae is limited, these species are classified primarily from morphological features. Udoteaceae's structure is siphonous and composed of a giant, multinucleate tubular cell. Udoteaceae contains taxa that are either calcif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caulerpa
''Caulerpa'' is a genus of seaweeds in the family Caulerpaceae (among the green algae). They are unusual because they consist of only one cell with many cell nucleus, nuclei, making them among the biggest single cells in the world. Referring to the crawling growth habit#Structure, habit of its thallus, the name means 'stem (that) creeps', from the Ancient Greek ' (, ‘stalk’) and ' (, ‘to creep’). Taxonomy and nomenclature First described by Jean Vincent Lamouroux in 1809, ''Caulerpa'' is the only genus under the family Caulerpaceae, from the order Bryopsidales, class Ulvophyceae, and phylum Chlorophyta. Through the use of ''tuf''A gene sequencing, it was revealed that ''Pseudochlorodesmis'' F. Børgesen was a sister clade of ''Caulerpa''. Cremen et al. proposed a new classification scheme in Bryopsidales, wherein Caulerpaceae and Halimedaceae were described as sister families. Species discrimination via morphology-based identification is often hampered by the high degr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulvophyceae
The Ulvophyceae or ulvophytes are a class of green algae, distinguished mainly on the basis of Ultrastructure, ultrastructural morphology, Biological life cycle, life cycle and molecular phylogenetics, molecular phylogenetic data. The sea lettuce, sea lettuce, ''Ulva'', belongs here. Other well-known members include ''Caulerpa'', ''Codium'', ''Acetabularia'', ''Cladophora'', ''Trentepohlia (alga), Trentepohlia'' and ''Monostroma''. The Ulvophytes are diverse in their Morphology (biology), morphology and their habitat (ecology), habitat. Most are seaweeds such as those listed above. Others, such as ''Rhizoclonium'', ''Pithophora'' and some species of ''Cladophora'' live in fresh water and in some areas are considered weeds. Morphology Ulvophycean algae are diverse in morphology. The thalli are typically colonial (some are unicellular). A few taxa have flagella in their vegetative stage, such as ''Oltmannsiellopsis''. Common forms include filaments (both unbranched and branched) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoudoteaceae
Pseudoudoteaceae is a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... It contains four species across two genera. References Ulvophyceae families Bryopsidales {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coenocyte
A coenocyte () is a multinucleate cell which can result from multiple nuclear divisions without their accompanying cytokinesis, in contrast to a syncytium, which results from cellular aggregation followed by dissolution of the cell membranes inside the mass. The word syncytium in animal embryology is used to refer to the coenocytic blastoderm of invertebrates. A coenocytic colony is referred to as a coenobium (: coenobia), and most coenobia are composed of a distinct number of cells, often as a multiple of two (4, 8, etc.). Research suggests that coenobium formation may be a defense against grazing in some species. Physiological examples Protists Diplomonads, like ''Giardia'', have two nuclei. Ciliates have cells that contain two nuclei: a macronucleus and a micronucleus. The schizont of apicomplexan parasites is a form of a coenocyte (i.e. a plasmodium in the general sense) as well as the plasmodia of microsporidian (Fungi) and myxosporidian (Metazoa) parasites. The tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostreobiaceae
Ostreobiaceae are a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families Bryopsidales Monogeneric algae families {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhipiliaceae
Rhipiliaceae is a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families {{ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudocodiaceae
Pseudocodiaceae is a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families Bryopsidales Monogeneric algae families {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halimedaceae
Halimedaceae are a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families Bryopsidales {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dichotomosiphonaceae
Dichotomosiphonaceae are a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families Bryopsidales {{Ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derbesiaceae
Derbesiaceae are a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branched, and may be packed into a mass. It is coenocytic, having multi-nu .... References Ulvophyceae families Bryopsidales {{green algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Codiaceae
Codiaceae is a family (biology), family of green algae in the order Bryopsidales. Genera * † ''Abacella'' Maslov * † ''Appeninocodium'' O.Dragastan * † ''Arabicodium'' G.F.Elliott * ''Bevocastria'' E.J.Garwood * ''Botryella'' V.P.Shuysky * ''Boueina'' F.Toula * ''Codium'' Stackhouse * ''Garwoodia'' Alan Wood * ''Geppella'' Børgesen * ''Hedstroemia'' A.Rothpletz * ''Ivanovia'' Khvorova * ''Johnsonicodium'' O.Dragastan * ''Neoanchicodium'' R.Endô * ''Scotlandella'' O.Dragastan * ''Succodium'' Konishi * ''Tethysicodium'' O.Dragastan Synonyms: * ''Acanthocodium'' * ''Agardhia'' A.Cabrera, 1823, nom. illeg., currently regarded as a synonym of Codium. * ''Lamarckia (Algae), Lamarckia'' Olivi, 1792, Conserved name, nom. rejic., currently regarded as a synonym of Codium. * ''Moniliaxes'' Kajimura, 1977, Taxonomic status: uncertain, requiring further investigation. * ''Spongodium'' J.V.F.Lamouroux, 1813, Taxonomic status: uncertain, requiring further investigat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
