... paraspeckles are irregularly shaped compartments in the interchromatin space of the nucleus. First documented in HeLa cells, ... Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a ... "The Nucleus". MBInfo. "Learn about the Cell Nucleus". cellnucleus.com. Website covering structure and function of the nucleus ... of the cell volume.: 178 The nucleus is the largest organelle in animal cells.: 12 In human cells, the diameter of the nucleus ...

Zooming, note the irregular cell- and nucleus-shapes. IDH1 R132H in anaplastic oligodendroglioma Surgery can help reduce ... Since typically the cells of an anaplastic oligodendroglioma have already migrated into the surrounding healthy brain tissue at ... Anaplastic oligodendroglioma is a neuroepithelial tumor which is believed to originate from oligodendrocytes, a cell type of ... from precursor stem cells of the oligodendrocytes. This tumor occurs primarily in middle adulthood with a frequency peak in the ...

Lans H, Hoeijmakers JH (March 2006). "Cell biology: ageing nucleus gets out of shape". Nature. 440 (7080): 32-34. Bibcode: ... HPGS is caused by mutations that weaken the structure of the cell nucleus, making normal cell division difficult. The histone ... The gene, known as lamin A (LMNA), makes a protein necessary for holding the nucleus of the cell together. When this gene gets ... A study that compared HGPS patient cells with the skin cells from young and elderly normal human subjects found similar defects ...

Cells are cigar-shaped, 7 to 45 μm long and 1 to 8 μm wide. The cells are bundled such that the long axes of cells are parallel ... The tips of the cells are rounded or acutely pointed. Cells contain a single nucleus and one parietal chloroplast; the ... Species identification relies on details of the cell size and shape. See the NCBI webpage on Quadrigula. Data extracted from ... Quadrigula forms colonies of two, four, or cells within a common mucilaginous envelope. ...

One or several chloroplasts may be present in a single cell. The shape of the chloroplast may be star-shaped (in Zygnema), ... Each cell contains a single nucleus. The chloroplasts of the Zygnematophyceae are large, typically axile but sometimes ... In conjugation, cells or filaments of opposite sex line up, and tubes form between corresponding cells. The male cells then ... The cells then meet and fuse to form a zygote, which later undergoes meiosis to produce new cells or filaments. As in land ...

Cell bodies are of medium size and oval- or pyriform-shape. These cells characteristically present coarse Nissl granules and ... The posterior thoracic nucleus, (Clarke's column, column of Clarke, dorsal nucleus, nucleus dorsalis of Clarke) is a group of ... and a sacral nucleus in the middle and lower part of the sacral region. Nerve cells in the posterior thoracic nucleus are most ... It is represented, however, in the other regions by scattered cells, which become aggregated to form a cervical nucleus ...

The cell shape is variable but is mostly obovoid to ellipsoid. The lateral cell margins maybe somewhat angular leading to a ... The nucleus typically lies in the posterior half of the cell. The mitochondria have tubular cristae. Organelles called ... Provided with a nucleus and contracting vesicles. - Carter, 1865 In 1917, it was classified as being one of the "simplest and ... Members of this genus are known to reproduce asexually through cell division. Whether sexual reproduction occurs is currently ...

As the cell matures, it develops multiple parietal chloroplasts along its long axis. Cells have one nucleus (uninucleate) when ... Schroederia consists of solitary cells that are needle- or spindle-shaped. They may be straight or curved. The cells end in ... Schroederia produces zoospores with two flagella, which are released when the mother cell's wall tears open. Zoospores contain ... Species are distinguished from one another by their overall shape and size. Schroederia reproduces excusively by asexual means ...

Normally the meristematic cells are oval, polygonal, or rectangular in shape. Meristematic tissue cells have a large nucleus ... Cells of this type of tissue are roughly spherical or polyhedral to rectangular in shape, with thin cell walls. New cells ... Each cell contains a dense cytoplasm and a prominent cell nucleus. The dense protoplasm of meristematic cells contains very few ... Parenchyma cells called idioblasts have metabolic waste. Spindle shape fiber also contained into this cell to support them and ...

Each individual thallus consists of a single cell with a single nucleus. There is a holdfast where the alga is attached to the ... Each individual thallus consists of a single cell with a long stipe and a terminal cup-shaped or flattened disc. The umbrella ... Evidence of a polypeptide in whole cells and anucleated cells". Toxicological & Environmental Chemistry. 55 (1-4): 11-18. doi: ... If the plant is broken in two pieces, each is able to survive and regenerate new parts, even the one that lacks a nucleus, ...

Gametocytes are "kidney-shaped" and are smaller than the host cell nucleus. This species is found in Brazil in the Amazon area ... Infection does not enlarge or distort the host red blood cells. Each infected cell generally yields 4 to 8 new merozoites. ... Blood stages of the parasite are described to occupy at one pole of the host cell. ...

This positioning generates a C-shape around the nucleus of the cell. Surrounding the C-shaped rod is an accessory rod structure ... Bihospites cells contain one indented nucleus, which is associated with the feeding pocket via the C-shaped rod apparatus ... Each cell surface is covered by both rod-shaped and spherical-shaped epibiotic bacteria that may share a commensalistic or ... The rod-shaped epibionts form bands along the cell with rows of spherical-shaped epibionts arranged between each band. Each ...

As single cells, they reproduce asexually by budding. Their nerves have no cell body and no nuclei; nothing to separate them ... The brain is large, shaped long and narrow, and is encased in a bony cage. The skull is one end of this jointless, flexible, ... Kzinti ears are hairless, pink, and shaped liked a segment of a Chinese parasol (or cocktail umbrella); they can fold back flat ... Other Tnuctip inventions were designed to shape Thrint society to weaken it. Sunflowers encouraged a trend for the slavers to ...

Mature cells have multiple nuclei (i.e. are multinucleate). Each cell has multiple chloroplasts lining the outer wall of the ... cell; each chloroplast is angular in shape and lacks pyrenoids. Bracteacoccus reproduces asexually by producing zoospores. The ... Bracteacoccus consists of solitary, typically spherical cells from 4 to 110 μm in diameter. ...

Sporocyte nuclei are large and spherical, with around 4-5 chromosomes in total in a general V-shape, which is typical for ... The nuclei lie around the periphery of the cell. Dinospore movement is via flagellar locomotion. In the forms rich with starch ... The first form consists of small plasmodia that contain a maximum of 8 nuclei, which are assumed to give rise to dinospores. ... What is clear though is that the initial infection site is inside the nucleus of the host. Juvenile trophozoite generally lie ...

... tetras consists of cells in colonies of four in a cross shape. Cells are spindle-shaped, with the base attached to a ... The cell wall is smooth. Cells contain one nucleus and a single, parietal chloroplast with one pyrenoid. Marthea reproduces ... Unusually, the autospores show amoeboid movement for some time, before settling in their usual shape and being released from ... central mass of mucilage, while the apex of the cells are pointed. ...

The schizonts and gametocytes caused hypertrophy and distortion of host cell and nucleus. The nucleus may be displaced. Pigment ... The schizonts are usually polar in position, rounded in shape, and may produce over 100 merozoites. Large schizonts visibly ...

They are cylindrical in shape with folds along the surface of the cell. The nucleus is central. The nucleus is off center. A ... After undergoing syzygy, the cells have two nuclei. This new form migrates to the hepatopancreas via its openings into the ... sp.), a gregarine from the digestive tract of Anaspides tasmaniæ (Thompson). J Cell Sci s2-55: 155-175 v t e (Articles with ... spherical ball like structure may be present at the anterior end of the cell and connected to the body of the cell by a narrow ...

... a large single cell with multiple nuclei. While nutrients are available, the network-shaped plasmodium can grow to a foot or ... and the cell cycle. The two vegetative cell types, amoebae and plasmodia, differ markedly in morphology, physiology and ... For dumbbell-shaped microplasmodia, often termed Amoeboid plasmodia, stiffening of the cortex in the rear versus the front ... In particular, plasmodia placed at entrances to special geometrically shaped mazes would emerge at exits of the maze that were ...

The cells were anaplastic, varying in size and shape; and they appeared to have little cytoplasm. The nuclei of the cells were ... Melittin has a background in research as a possible cancer drug due to its activity against malignant cells. Tumor-associated ... Cannabinoids suppress Lewis lung carcinoma cell growth. The mechanism of this action was shown to be inhibition of DNA ... In large tumor nodules, the cells grew, without patterning, into confluent sheets. The nodules had capillaries predominantly ...

A single, spherical nucleus is present in the anterior region of the cell body. Retortamonas cysts are pear-shaped, and smaller ... forming a cap of the cell with a thickened cyst wall. The cysts also contain a distinct anterior nucleus, but the flagella ... an enlarged feeding groove acting as the mouth of the organism and a small nucleus located in the anterior region of the cell ... Retortamonas is then able to engulf them into the cell and form an internal food vacuole. The cyst stage's main function is to ...

Cells are ovoid in shape, with one nucleus at the base of the cell. There is one central, stellate chloroplast with a pyrenoid ... Characiella rukwae consists of colonies of cells embedded in a gelatinous matrix. ...

Gametocytes, while varying in shape tend to be round or oval, do not exceed the size of the nucleus and stick to it. The type ... Haemamoeba Mature schizonts are larger than the host cell nucleus and commonly displace it. Gametocytes are large, round, oval ... The schizonts apically or lateroapically placed and are rounded or irregularly shaped. The host nucleus may be tilted. The type ... Giovannolaia Schizonts contain plentiful cytoplasm, are larger than the host cell nucleus and frequently displace it. They are ...

... and a cytoskeleton which defines the cell's organization and shape. The nucleus stores the cell's DNA, which is divided into ... The cell wall also prevents over-expansion when water enters the cell. The major polysaccharides making up the primary cell ... Some cell products can leave in a vesicle through exocytosis. The nucleus is surrounded by a double membrane known as the ... are surrounded by a cell wall. This is a layer outside the cell membrane, providing the cell with structural support, ...

The nucleus can be found in the periphery of the cell. Organic spicules have been found on Raphidiophrys heterophryoidea. ... Axopodia are numerous and connect to a centroplast found in a spherical body shape. Microtubules extend from the centroplast to ... In Raphidiophrys contractilis it has been observed that upon capturing prey, its axopodia will contract toward the cell body, ...

The nucleus is prominently at the centre of the cell. The unusual feature of the cell is that it contains reddish-brown ... Cells have convex dorsal margins and small oval shaped cells and their thecal plates are covered with areolae (circular ... acuminata cells are irregularly egg-shaped, dorsally convex and have large hypothecal plates with a more or less oval shape. ... The taxonomic identification of Dinophysis species is largely based on cell contouring, size and shape of their large ...

... spheroidal cells surrounded by a smooth cell wall. Young cells have a single nucleus, but mature cells have nuclei (i.e. are ... Each cell has multiple chloroplasts lining the outer wall of the cell; each chloroplast is saucer-shaped when young and divided ... Cells may have secondary carotenoids present, giving the cells an orange color especially when old. Pseudomuriella reproduces ...

Their colonies consist of 8-20 cells and take on a spiral, star-like shape. They may also occur in a closed ring shape, but ... Within each cell is a nucleus at their center and 6-8 golden-brown chromatophores. Asterionella formosa colonies consist of ... To prevent the fungus from spreading, affected cells in the colony usually induce cell death. A. formosa laboratory models have ... Asterionella formosa has valves (siliceous plate that makes up a half of a diatom cell) that are long and narrow, with capitate ...

Infected cells have large numbers of abnormal chloroplasts, mitochondria and hypertrophied nuclei. Cells of CPsV-EG infected ... which are displaced toward nucleus periphery along the nuclear envelope. Sometimes nucleolus appear abnormally shaped. ... In general CPsV-EG-infection affects the upper epidermis of the leaf which is composed of non-tabular parenchyma cells covered ... Crystal idioblast (CI) containing cells are lacking in the palisade layer and protrude into the epidermis. The oil glands are ...

The infected cells are hypertrophied and distorted and their nuclei are displaced. The schizonts are polymorphic and contain 12 ... nuclei when apparently mature. Prematuration sexual stages may be irregularly shaped and larger than mature gametocytes. The ...