A genus of gram-negative, helical bacteria, in the family SPIROPLASMATACEAE, order Entomoplasmatales, causing disease in PLANTS. It has been isolated from TICKS; INSECTS; and PLANTS.

The type species of gram-negative bacteria in the genus SPIROPLASMA, family SPIROPLASMATACEAE, causing citrus stubborn disease.

A plant genus of the family APOCYNACEAE. Vinca rosea has been changed to CATHARANTHUS roseus.

A phylum of gram-negative bacteria consisting of cells bounded by a plasma membrane. Its organisms differ from other bacteria in that they are devoid of cell walls. This phylum was formerly the class Mollicutes. Mollicutes is now the sole class in the phylum Tenericutes.

An order of highly pleomorphic, gram-negative bacteria including both pathogenic and saprophytic species.

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.

A genus of gram-negative, mostly facultatively anaerobic bacteria in the family MYCOPLASMATACEAE. The cells are bounded by a PLASMA MEMBRANE and lack a true CELL WALL. Its organisms are pathogens found on the MUCOUS MEMBRANES of humans, ANIMALS, and BIRDS.

A genus of bacteriophages of the family INOVIRIDAE. Organisms of this genus infect Acholeplasma and Spiroplasma.