Any of various plants of the genus Aster or closely related genera in the composite family, having radiate flower heads with white, pink, or violet rays and usually a yellow disk. • Aster is a genus of plants of the natural order Compositae • (as´tәr) a structure occurring in dividing cells • Any plant of a large group belonging to the same subfamily as the daisy • (cell biology) An aster is a cellular structure shaped like a star • (genus) Aster is … Star shaped cluster of microtubules radiating from the polar microtubule organising centre at the start of mitosis. Biology chapter 9 the cell cycle. Aster is a genus of perennial flowering plants in the family Asteraceae.Its circumscription has been narrowed, and it now encompasses around 180 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. Cell Biology a structure formed in a cell during mitosis, composed of astral rays radiating about the centrosome. ... Plant Biology any composite plant of the genus Aster, having rays varying from white or pink to blue around a yellow disk. ¹ Source: wiktionary.com. (biology) A star-shaped structure formed during the mitosis of a cell. 1. 73 terms. They also determine the site of the cleavage furrow that splits the dividing cell in half during cytokinesis. collegegirl85. Aster is a genus of perennial flowering plants in the family Asteraceae. ăs'tər Any of various plants of the genus Aster or closely related genera in the composite family, having radiate flower heads with white, pink, or violet rays and usually a yellow disk. Important Types. Noun. Microtubules called polar fibers are generated from each centrosome, which lengthen and elongate the cell. A radial array of short microtubules that extends from each centrosome toward the plasma membrane in an animal cell undergoing mitosis. Asters are vital to the processes of mitosis and meiosis. Regina Bailey is a board-certified registered nurse, science writer and educator. The aster function is uncertain, but does not seem to be concerned … prefix denoting a star. Aster meanings include love and wisdom. Definition of Aster. These fibres attach to the kinetichore of the chromosome during cell division and thus helps in … Definition: Search for: Glossary - word Glossary - def Textbooks Protocols Images Tools Forum PubMed Links Press Releases Biology Glossary search by EverythingBio.com Furniture Furniture. The aster flower is a member of the larger Asteraceae family of flowering plants, which includes over 20,000 different species. 29 terms. Asters are radial microtubule arrays found in animal cells. jacksonreeves15. 2. Medical Definition of aster : a system of microtubules arranged in rays around a centriole at either end of the mitotic or meiotic spindle The first stage in the formation of the mitotic spindle in a typical animal cell is the appearance of microtubules in a "sunburst" arrangement, or aster, … As the weather turns and the nights close in, enormous clouds of blue asters burst into bloom, cheerfully mixing and mingling, Astellas Pharma Global Development Europe, ASTER Data Archive and Distribution Subsystem. 73 terms. Collins Dictionary of Biology, 3rd ed. -aster (feminine-astra, neuter-astrum); first/second-declension suffix (nominative masculine singular in -er) suffix of nouns or adjectives, expressing half, partial, or incomplete resemblance to the root word meaning; hence in some cases may be pejorative . How to use aster in a sentence. Biology A star-shaped structure formed in the cytoplasm of a cell and having raylike fibers that surround the centrosome during mitosis. Asters tend to bloom in the late summer or early fall, and they come in many different colors. biology 8. 3. Aster is a genus of flowering plants.It belongs in the family Asteraceae.The genus once had nearly 600 species in Eurasia and North America.After morphologic and molecular research on the genus during the 1990s, it was decided that the North American species are better treated in a series of other related genera. If you plant asters in the spring, you'll be rewarded with purple and pink blossoms a few months later. a group of blind-ending SPINDLE MICROTUBULES radiating out from the CENTRIOLES of dividing cells in lower plants and all animals. aster meaning: 1. a garden flower that is usually pink or purple, with many long, thin petals 2. a garden flower…. It is this contact with the cortex that induces the formation of a cleavage furrow. collegegirl85. Asters help to manipulate chromosomes during cell division to ensure that each daughter cell has the appropriate complement of chromosomes. biology 8. jacksonreeves15. a structure occurring in dividing cells, composed of microtubules radiating from a centrosome. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Asters are perennial … Other spindle fibers attach to and move chromosomes during cell division. Biology Chapter 8 Quest Section 1 and 2. Any of various plants of the genus Aster or closely related genera in the composite family, having radiate flower heads with white, pink, or violet rays and usually a yellow disk. The cell cortex is responsible for producing the contractile ring that constricts the cell and "pinches" it into two cells. Microtubules from nearby asters interconnect, which helps to limit expansion and cell size. With a rich history in Greek mythology, it’s said that the aster was created by the tears of the Greek goddess, Astraea. During the course of cell division, asters growing from centrioles extend their microtublules toward one another. aster. Aster definition: any plant of the genus Aster, having white, blue , purple , or pink daisy-like flowers:... | Meaning, pronunciation, translations and examples The China aster. Aster (cell biology): An aster is a cellular structure shaped like a star, formed around each centrosome during mitosis in an animal cell. a structure occurring in dividing cells, composed of microtubules radiating from a centrosome. Aster amellus is the type species of the genus and the family Asteraceae.. Steph has a PhD in Entomology and teaches college biology and ecology. An aster is a flower that's related to the daisy. They are a component of the spindle apparatus, which also includes spindle fibers, motor proteins, and chromosomes. They are long fibre like structures that give rise to the spindle Fibres. Aster is girl who loves the world and the world loves her. 1. Distribution of Asteraceae 3. Plant Biology a plant of some allied genus, as the China aster. 4. a plant of some allied genus, as the China aster. Asters help to organize and position the spindle apparatus during cell division. Save Save Save. These star-shaped structures form around each pair of centrioles during mitosis. 1. See the full definition for aster in the English Language Learners Dictionary, Nglish: Translation of aster for Spanish Speakers. ¹. Plant Biology a plant of some allied genus, as the China aster. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Any of various plants of the genus Aster or closely related genera in the composite family, having radiate flower heads with white, pink, or violet rays and usually a yellow disk. tbocage. The two asters are the poles of the spindle apparatus. Aster Story & Origins. Characters of Asteraceae: Mostly herbs or shrubs or rarely trees; leaves alternate rarely opposite, exstipulate rarely stipulate; inflorescence capitulum or head surrounded by involucre of bracts; ray and disc florets, flower © W. G. Hale, V. A. Saunders, J. P. Margham 2005 Want to thank TFD for its existence? Biology Chapter 8 Quest Section 1 and 2. These star-shaped structures form around each pair of centrioles during mitosis. The achenes are flattened and smooth with a pappus of short, bristly hairs. Definition and Examples, A.S., Nursing, Chattahoochee Technical College, Spindle fibers move chromosomes to the center of the cell during. Asters are parts of the centrioles. a structure formed in a cell during mitosis, composed of astral rays radiating about the centrosome. Science and technology. sunflower (def. Asters are structures animal cells use during mitosis or meiosis, and the word aster comes from the Latin word for star. The aster flower is a member of the larger Asteraceae family of flowering plants, which includes over 20,000 different species. A Astral rays, composed of microtubules, radiate from the centrosphere and look like a cloud. 2. An aster is a flower that's related to the daisy. Characters of Asteraceae 2. Genus Aster, family Compositae: numerous species, many of which bloom in autumn, including the wild purple New England aster (A. novae-angliae). Cleavage furrow formation and cytokinesis are essential for proper development of cells, tissues, and for proper development of an organism as a whole. ( botany ) A plant genus of the family Asteraceae ; the flower of this group. 29 terms. After this split there are about 180 species within the genus. https://medical-dictionary.thefreedictionary.com/aster. All Free. Dependable disasters Download this graphic from the Image library. Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content. Centrioles are found within the centrosome, an organelle located near the cell nucleus that forms the spindle poles. Asters separating in prophase of mitosis. Asters tend to bloom in the late summer or early fall, and they come in many different colors. Economic Importance 4. Aster definition: any plant of the genus Aster, having white, blue , purple , or pink daisy-like flowers:... | Meaning, pronunciation, translations and examples aster. 1. 1. a flowering plant [n -S] Medical Definition of Aster. aster: On-Line Biology Book: GLOSSARY [home, info] ASTER: A Dictionary of Quaternary Acronyms and Abbreviations [home, info] Slang (1 matching dictionary) Aster: Urban Dictionary [home, info] Tech (1 matching dictionary) ASTER: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING [home, info] (Note: See asters for more definitions.) They consist of astral microtubules that are generated from cylindrical microtubules called centrioles. With a Level IV trauma care centre, advanced interventional radiology, sophisticated intensive care facilities and the best blood bank in the district, Azad Moopen, Founder, Chairman and Managing Director of, Conscious of the high costs of healthcare, he says, 3.1.1.Advanced space borne thermal emission and reflection radiometer (, The company on Wednesday inaugurated its first facility in the country-the, A similar cultivar with dusty pink flowers with bronze centres is, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, More than 50,000 flood victims impacted through Aster Volunteers Programme in India, Alisha Moopen has taken up the new role as Deputy Managing Director of Aster DM Healthcare, Aster to invest Dh395M for India expansion spree, Kabogo, three others to pay Sh100M damages to firm, ASTER Labs Selected as Educational Satellite Kit Distributor, ASTER DM HEALTHCARE PARTNERS WITH NIGERIAN UNIVERSITY HOSPITAL, Emirates Red Crescent (ERC) and Aster Volunteers Make Eid Happy and Healthy for 100 Underprivileged Children, Dr Azad Moopen: I am at the right place at the right time with the right support, Impact of DEM resolution and accuracy on remote sensing and topographic DEM derived topographic attributes and drainage pattern, Father of girl who survived fall from balcony speaks out as new law announced, Dubai-based firm banks on PH healthcare industry, IT ASTER BE ADMIRED; RIGHT AT HOMEAs the weather turns and the nights close in, enormous clouds of blue asters burst into bloom, cheerfully mixing and mingling. noting a supersensible substance pervading all space and forming the substance of a … During the cell cycle, asters form around the centriole pairs located at each cell pole. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists. They consist of astral microtubules that are generated from cylindrical microtubules called centrioles. Improper cleavage furrow formation in cytokinesis can produce cells with abnormal chromosome numbers, which can lead to the development of cancer cells or birth defects. ... and the word aster comes from the Latin word for star. Start studying AP Biology Chapter 12. Aster is a genus of perennial flowering plants in the family Asteraceae. Learn vocabulary, terms, and more with flashcards, games, and other study tools. n aster A name of plants of some allied genera, as the Cape aster (Agathæa amelloides), the China aster (Callistephus Chinensis), the false aster (Boltonia), the golden aster (Chrysopsis), and the white-topped aster (Sericocarpus).—5. Chapter 12-AP Biology. Asters are radial microtubule arrays found in animal cells.These star-shaped structures form around each pair of centrioles during mitosis.Asters help to manipulate chromosomes during cell division to ensure that each daughter cell has the appropriate complement of chromosomes. Its circumscription has been narrowed, and it now encompasses around 180 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. An aster is a cellular structure shaped like a star, consisting of a centrosome and its associated microtubules during the early stages of mitosis in an animal cell. Aster, a genus of flowering plants . Aster definition, any composite plant of the genus Aster, having rays varying from white or pink to blue around a yellow disk. The cell cortex is found directly beneath the plasma membrane and consists of actin filaments and associated proteins. aster - WordReference English dictionary, questions, discussion and forums. A radial array of short microtubules that extends from each centrosome toward the plasma membrane in an animal cell undergoing mitosis. Asters induce cleavage furrow formation due to interactions with the cell cortex. The Aster is a unique daisy-like wildflower that’s known for its star-shaped flower head. Plant Biology any composite plant of the genus Aster, having rays varying from white or pink to blue around a yellow disk. (18 Nov 1997) Learn more. Some aster microtubules continue to extend until contact is made with the cortex. Aster (family Compositae) A genus of mostly perennial herbs in which the leaves are simple and spirally arranged, the flower heads have imbricate bracts and flat, naked receptacles; ray florets, usually present, are white, blue, or red, but never yellow but the disc florets are yellow. Aster definition is - any of various chiefly fall-blooming leafy-stemmed composite herbs (Aster and closely related genera) with often showy heads containing disk flowers or both disk and ray flowers. the opposite of a disaster in a feeling form. pertaining to, consisting of, or resembling an aster; having a discoid, radiate flower head. Asters help to position cleavage furrows so that cytoplasmic division results in two evenly divided cells. 34 terms. 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