A genus of coccoid bacteria in the family PLANOCOCCACEAE. They are widely distributed in various habitats including sea water, freshwater ponds, cyanobacterial mats, and in marine animals.
A genus of insect in the mealybug family Pseudococcidae.
A genus of SPONGES in the family Plakinidae, with the skeleton formed by small diactine (and some triactine) needle-like terminations.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
An area of water mostly surrounded by land, usually smaller than a gulf, and affording access to the sea.
An order of gram-positive bacteria in the class Bacilli, phylum Firmicutes.
Coccus-shaped bacteria that retain the crystal violet stain when treated by Gram's method.
A family of gram-positive bacteria in the order BACILLALES. Most are strict aerobic heterotrophs.
Bacteria which retain the crystal violet stain when treated by Gram's method.
A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It is comprised of four suborders: HETEROPTERA, Auchenorrhyncha, Sternorrhyncha, and Coleorrhyncha.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
A body of water covering approximately one-fifth of the total ocean area of the earth, extending amidst Africa in the west, Australia in the east, Asia in the north, and Antarctica in the south. Including the Red Sea and the Persian Gulf, it constitutes the third largest ocean after the ATLANTIC OCEAN and the PACIFIC OCEAN. (New Encyclopaedia Britannica Micropaedia, 15th ed, 1990, p289)