... consists of solitary, spheroidal cells surrounded by a smooth cell wall. Young cells have a single nucleus, but ... Pseudomuriella is a genus of green algae, specifically of the class Chlorophyceae. It is the sole genus of the family ... mature cells have nuclei (i.e. are multinucleate). Each cell has multiple chloroplasts lining the outer wall of the cell; each ... Cells may have secondary carotenoids present, giving the cells an orange color especially when old. Pseudomuriella reproduces ...
It is coenocytic, having multi-nucleate cells consisting of cytoplasm contained within a cylindrical cell wall. There are no ... Bryopsidales is an order of green algae, in the class Ulvophyceae. The thallus is filamentous and much branched and may be ... The whole organism may consist of a single cell and in the genus Caulerpa this may be several metres across. In the genus ... Day, Robert (1996). "The Cell Biology of the Bryopsidales". Seascope. 13. Overview of the Genus Caulerpa Archived 2011-09-28 at ...
A cell wall is absent, instead the cell membrane consist of many layers of specific scales. It is a short, filamentous and ... The cells in Charophyta algae are all haploid, except during sexual reproduction, where a diploid unicellular zygote is ... each daughter-cell develops the other semi-cell afresh) and sexually by conjugation, or the fusion of the entire cell-contents ... The zygote turns into four new haploid cells through meiosis, which will develop into new algae. In multicellular forms these ...
... consists of spherical cells that are solitary or sometimes found in small clusters. The cell wall is thin and smooth ... Neochloris is a genus of green algae in the family Neochloridaceae. It is found in freshwater aquatic and terrestrial soil ... Cells are multinucleate (with multiple nuclei). Each cell has a single parietal chloroplast with one to several pyrenoids. ... Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, ...
... consists of cells in groups of two, sometimes four or solitary. The cell wall is noticeably thickened on one side. ... Poloidion is a genus of green algae in the family Neochloridaceae, containing the single species Poloidion didymos. It is an ... Cells are ovoid, ellipsoidal or irregularly spherical. The chloroplast is cup-shaped, lacking a pyrenoid. Poloidion reproduces ... Monotypic algae genera, All stub articles, Chlorophyceae stubs). ...
... consist of cells with two symmetrical halves, and mucilage-secreting pores in the cell wall. Here, the term "desmids" and " ... Desmids consist of single-celled (sometimes filamentous or colonial) microscopic green algae. Because desmids are highly ... During cell division, the two halves of a cell separate, and each half develops into a new cell. After division, a cell may be ... with individual cells connected by threads or remnants of parent cell walls. The cell of a desmid is often divided into two ...
They are also distinguished from plants, algae, and fungi by lacking cell walls. With a few exceptions-most notably the two ... The remainder consists of continents and islands, with most of the inhabited land in the Northern Hemisphere. Earth has evolved ... The incorporation of smaller cells within larger ones resulted in the development of yet more complex cells called eukaryotes. ... The eukaryotic cells possessed by all animals are surrounded by a characteristic extracellular matrix composed of collagen and ...
... which colors the algae. Dictyochloris consists of solitary, spherical cells surrounded by a thin cell wall. Cells are ... Dictyochloris is a genus of green algae in the class Chlorophyceae. It is the sole genus of the family Dictyochloridaceae. It ... 2002). The freshwater algal flora of the British Isles: an identification guide to freshwater and terrestrial algae. Cambridge ... Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, ...
Unlike many bacteria, V. chlorellavorus is an obligate parasite, attaching to the cell wall of green algae of the genus ... The Vampirovibrio life cycle consists of: prey location, attachment, ingestion, binary division, and release. Gromov and ... attaching to the cell wall of green algae in the genus Chlorella. It was also thought that the bacterium utilized a thin, ... Vampirovibrio chlorellavorus is a 0.6 µm pleomorphic cocci with a gram negative cell wall, and is one of the few known ...
... that consists of a strengthened wall to protect the cell under unfavorable environment. Prokaryotic sheath: the cell wall of ... the resistant wall of green algae made up of long-chained methylenic-polymer that can withstand changing temperature and ... Eukaryotes are by definition organisms with cells that consists of a nucleus and other cellular organelles enclosed within a ... They share similarity to cells or organelles with different origins listed below: Cysts of eukaryotes: ...
The cell wall consists of two layers; the inner layer bears the strength, and consists of cellulose; the outer wall layer is ... Brown algae include a number of edible seaweeds. All brown algae contain alginic acid (alginate) in their cell walls, which is ... Some species have a stage in their life cycle that consists of only a few cells, making the entire alga microscopic. Other ... Second, all brown algae are multicellular. There are no known species that exist as single cells or as colonies of cells, and ...
Now all that remains of the green alga is its cell wall and the residual body, a clump consisting of host cell fragments ... The cells of Aphelidium are much smaller than the cells of its green algae host, which is protected by a robust cell wall. ... Ultimately the pressure pushing against the chitin wall of the cyst punctures the cell wall of the host green alga at the point ... using the cell wall of the host alga as a sporangium. Finally, the uniflagellate zoospores erupt the husk of the host cell via ...
Structurally, cephalodia consist of dense aggregates of Nostoc cells surrounded by thin-walled hyphae-this delimits them from ... Gauslaa, Yngvar; Solhaug, Knut Asbjørn (2001). "Fungal melanins as a sun screen for symbiotic green algae in the lichen Lobaria ... replication of green algal cells, and entanglement of fungal hyphae with the green algal cells. These steps lead to an increase ... Lobaria pulmonaria is a large epiphytic lichen consisting of an ascomycete fungus and a green algal partner living together in ...
... is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes ... Cellulose produced by bacteria and algae is enriched in Iα while cellulose of higher plants consists mainly of Iβ. Cellulose in ... 2011). "Evolution and diversity of plant cell walls: from algae to flowering plants". Annual Review of Plant Biology. 62: 567- ... Each RTC floats in the cell's plasma membrane and "spins" a microfibril into the cell wall. RTCs contain at least three ...
Its thallus consists of a thin-walled, tough, multinucleate cell with a diameter that ranges typically from 1 to 4 centimetres ... The "bubble" alga is attached by rhizoids to the substrate fibers. Reproduction occurs by segregative cell division, where the ... The peripheral cytoplasm (whose membrane is overlaid by the cell wall) is only about 40 nm thick. Valonia ventricosa typically ... ISBN 978-1-58544-617-9. Shepherd, VA; Beilby, MJ; Bisson, MA (June 2004). "When is a cell not a cell? A theory relating ...
... is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily ... It forms the supporting structure in the cell walls of certain species of algae and is released on boiling. These algae are ... Aquaculture involving the farming of algae Alginic acid - Polysaccharide found in brown algae Asepsis - Absence of disease- ... Cells will attempt to grow within the gel structure. Motile species will be able to migrate, albeit slowly, throughout the gel ...
... is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily ... It forms the supporting structure in the cell walls of certain species of algae and is released on boiling. These algae are ... They may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. Seaweeds are also ... Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source of energy-rich ...
... (EC 4.2.2.-) is an enzyme found within the cell-wall of the marine organism Ulvales (green algae), and some marine ... backbone of ulvan consisting of D-glucuronic and L-iduronic acid suggests that this polysaccharide contributes to cell-wall ... Ulvan is one of the most abundant polysaccharides found in the cell-wall of marine algae. As a sulfated polysaccharide, ulvan's ... Ulvan is able to regulate ionic balance within the cell-wall, exhibiting an osmotic function that prevents algae desiccation, a ...
... internal cell walls, called septa, that are formed at right angles to the cell wall giving the hypha its shape), with each ... In contrast, similar-looking organisms, such as filamentous green algae, grow by repeated cell division within a chain of cells ... Growth of fungi as multicellular structures consisting of somatic and reproductive cells-a feature independently evolved in ... Slime molds lack a cell wall during the assimilative phase (except labyrinthulids, which have a wall of scales), and take in ...
They exhibit tube tip-growth and have cell walls composed of chitin, a polymer of N-acetylglucosamine. Microfungi are a ... Most of the fungal body consists of microscopic threads, called hyphae, extending through the substrate in which it grows. The ... Many thousands of microfungal species occur in lichens, forming symbiotic relationships with algae. Other microfungi, such as ... In the built environment, the toxic fungus Stachybotrys chartarum causes damage to damp walls and furnishings, and may be ...
They are microscopic, up to 100 μm in diameter, with a smooth cell wall. Cells are generally angular in shape, varying from ... Chlorotetraedron consists of cells up that are solitary or rarely found in irregular groups. ... that name was taken by a genus of algae in the Xanthophyceae (the yellow-green algae). Therefore, the genus was renamed to ... In cultivation, the cells may become nearly spherical, but the remnants of the angles are present as papillae. Cells contain ...
... explaining why the cell wall is sometimes made of both chitin and cellulose. The group's interrelationships are as follows: ... While evidence of these plastids hasn't been found, what has been proven is the existence of endosymbiotic red algae plastids. ... It consists of the Oomycota and Hyphochytridiomycetes. Although numerous biochemical, ultrastructural, and genetic traits ... It is believed that pseudofungi descend from unicellular algae among the Stramenopiles which lost their plastids. ...
... while the apex of the cells are pointed. The cell wall is smooth. Cells contain one nucleus and a single, parietal chloroplast ... Marthea tetras consists of cells in colonies of four in a cross shape. Cells are spindle-shaped, with the base attached to a ... Monographs on algae. Vol. 8. New Delhi: Indian Council of Agricultural Research. p. 365. v t e (CS1 German-language sources (de ... Marthea is a genus of green algae in the family Characiaceae, containing the single species Marthea tetras. It is an extremely ...
Cells are in clusters of four, eight, or 16 at the end of long gelatinous strands, which are the remains of the old cell wall. ... Actidesmium consists of microscopic colonies of numerous cells. ... Actidesmium is a small genus of green algae in the family ... Zoospores each have two flagella, and are released at the apex of the cell. After release, the mother cell gelatinizes and the ... Shubert, Elliot; Gärtner, Georg (2014). "Chapter 7. Nonmotile Coccoid and Colonial Green Algae". In Wehr, John D.; Sheath, ...
Chloroplast structure Inclusions of the cell Cell wall structure Flagella structure Cell division Life history The algae in the ... Examples of the types of organisms found in the Protist Kingdom are red, green and brown algae. The Plantae Kingdoms consists ... Most are enclosed by a cellular wall. Archaebacteria are a type of single-cell organism and have a number of characteristics ... These include protozoa, algae and slime molds. In marine ecosystems, macroalgae and microalgae make up a large portion of the ...
... is a genus of green algae in the family Chaetophoraceae that are spherical in shape with a thick cell wall to ... The genus consists of the following species: Pleurococcus angulosus Pleurococcus magnum Pleurococcus mucosus Pleurococcus ...
Mature cells have multiple nuclei (i.e. are multinucleate). Each cell has multiple chloroplasts lining the outer wall of the ... Bracteacoccus consists of solitary, typically spherical cells from 4 to 110 μm in diameter. ... Bracteacoccus is a genus of green algae, the sole genus of the family Bracteacoccaceae. It is a terrestrial alga commonly found ... cell; each chloroplast is angular in shape and lacks pyrenoids. Bracteacoccus reproduces asexually by producing zoospores. The ...
Individual cells are kidney-shaped to ovoid, containing one chloroplast lining the inside of the cell wall, each with one ... Nephrocytium consists of colonies of 4, 8, or 16 asymmetrical cells surrounded by a spherical to ovoid layer of mucilage, which ... Nephrocytium is a genus of green algae in the class Chlorophyceae. Formerly placed in the family Oocystaceae, it is currently ... while Juranyiella has granules dotted on the cell wall surface. Species are distinguished mainly by the shape of the cells ( ...
The cell wall is finely granulated when viewed with a light microscope. Cells contain a single nucleus and a single chloroplast ... Tetraedron is a genus of green algae in the family Hydrodictyaceae. It may also be spelled as Tetraëdron. Tetraedron consists ... or eight autospores are formed in the mother cell and are released by rupture of the parent cell wall. Zoospores and sexual ... Among the green algae, the genus Chlorotetraedron appears similar, but differs from Tetraedron in its ability to produce ...
Because of the abundant cell wall polysaccharides, it will form a jelly when boiled, containing from 20 to 100 times its weight ... Algae. 32 (1): 29-39. doi:10.4490/algae.2017.32.2.25. LéVesque, C.André; De Cock, Arthur W.A.M. (December 2004). "Molecular ... The organism also consists of nearly 10% dry weight protein and about 15% dry weight mineral matter, and is rich in iodine and ... Chondrus crispus is a relatively small sea alga, reaching up to a little more than 20 cm in length. It grows from a discoid ...
The inner wall of the archegonium lies in close contact with the "foot" of the developing embryo; this "foot" consists of a ... resulting in an embryo with one small cell (the apical cell) and one large cell (the basal cell). The small, apical cell will ... such as algae, which do not produce embryos. Embryos from numerous plant and animal species are studied in biological research ... The resulting fusion of these two cells produces a single-celled zygote that undergoes many cell divisions that produce cells ...