volvox

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vol·vox

(vŏl′vŏks′, vôl′-)

Any of various one-celled flagellate freshwater green algae of the genus Volvox that form hollow mucilaginous spherical colonies of several hundred cells.

[New Latin Volvox, genus name, from Latin volvere, to roll; see wel- in Indo-European roots.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

volvox

(ˈvɒlvɒks)

(Microbiology) any freshwater flagellate protozoan of the genus Volvox, occurring in colonies in the form of hollow multicellular spheres

[C18: from New Latin, from Latin volvere to roll]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

vol•vox

(ˈvɒl vɒks)

n.

any colonial freshwater green algae of the genus Volvox, forming a hollow sphere of flagellated cells.

[1790–1800; < New Latin, = Latin volv(ere) to turn, roll + -ōx (as in ferōx)]

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Noun

Volvox - type genus of the Volvocaceae; minute pale green flagellates occurring in tiny spherical colonies; minute flagella rotate the colony about an axis

genus Volvox

protoctist genus - any genus of Protoctista

family Volvocaceae, Volvocaceae - unicellular or colonial biflagellate free-swimming flagellates

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References in periodicals archive ?

The processes observed in the Volvox embryo are similar to the process of gastrulation in animal embryos--which biologist Lewis Wolpert calls "the most important event in your life." During gastrulation, the embryo folds inwards into a cup-like shape, forming the primary germ layers that give rise to all the organs in the body.

Do plants and animals develop same way?

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Halteria grandinella and Askenasia volvox) that predominated on the surface, with high concentration of dissolved oxygen.

Structure of planktonic ciliates community (Protist, Ciliophora) from an urban lake of southern Brazil/Estrutura da comunidade de ciliados planctonicos (Protista, Ciliophora) de um lago urbano do Sul do Brasil

Among Chlorophyceae, Volvox were represented by 80 and 10 individuals 5 ml-1 in the treated and reference ponds, respectively.

EFFECT OF LOW LEVEL OF MINERAL PHOSPHORUS AND MEDIUM LEVEL OF NITROGEN ON PLANKTONIC PRODUCTIVITY AND INCREASE IN FISH PRODUCTION

Solazyme has filed a patent application for Chlamydomonas, Chlorella, Volvox, Phaeodactylum, Dunaliella and Thalassiosira algae that have been genetically engineered to maximize triglyceride production.

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2 Chlorophyceae: Volvox, Ulothrix, Stichococcous, Chaetophora, Radiotillum, Microspora, Stigeoclonium, Protococcus, Oedogonium, Pediastrum, Rhizoclonium, Ankistrodesmus, Sclenastrum, Kirchnorilla, Mougeotiopsis, Trachelomonas and Euglena.

Feeding Behavior of a Carp, Cirrhinus reba (Hamilton) from Fishponds of District Jacobabad, Sindh, Pakistan

The company is deploying a fleet of more than 17 specialty vessels of which the Volvox Terranova HAM 318 trailing suction hopper dredger is the largest.

Carving out paradise: Volvox Terranova dredger used to create man-made Palm Deira Island; capacity to move 28 million cu.ft. of sand per week

Size of fish Food item Small (n = 60) Medium (n = 56) Plant material 15.6 11.9 Diatoms 45.3 66.1 Filamentous algae 28.1 44.1 Protozoa (Volvox) 8.3 9.3 Insects 98.4 78.0 Diptera 45.3 33.9 Tricoptera 1.6 Odonata Unidentified 51.6 44.1 Cladocera 53.1 45.8 Copepoda 12.5 11.9 Ostracoda 9.4 8.5 Rotifera 34.4 54.2 Ectoprocta (Bryozoan) 28.1 20.3 Formulated feed 54.7 79.7 Detritus 14.1 Sand 6.3 6.8 Size of fish Total for all Food item Large (n = 33) fish (n = 149) Plant material 9.3 Diatoms 8.3 39.9 Filamentous algae 23.3 31.7 Protozoa (Volvox) 11.4 9.4 Insects 20.0 66.1 Diptera 6.7 29.0 Tricoptera 0.5 Odonata 1.7 0.5 Unidentified 11.7 36.1 Cladocera 6.7 35.5 Copepoda 10.0 11.5 Ostracoda 6.0 Rotifera 16.7 35.0 Ectoprocta (Bryozoan) 6.7 18.6 Formulated feed 45.0 59.6 Detritus 4.9 Sand 4.4

Foods of age-0 Rio Grande silvery minnows (Hybognathus amarus) reared in hatchery ponds

Still other microorganisms, such as the Volvox algae, are covered in flexible, undulating flagella whose coordinated waves add up to net motion.

Microswimmers make a splash: tiny travelers take on a viscous world

Colonial organisms such as the green alga Volvox developed modified internal concentrations of nutrients and gases.

Chapter 14: Diversity: vascular plants

The smallest of these species (Gonium) have only a handful of cells arranged in a disk, while the Volvox that give the Volvocale line its name may have some 60,000 cells in the shape of a hollow sphere that is easily visible to the naked eye.