We don't have synonyms for phytoplasmas yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are phytoplasma, phytoplasmic and phytoplasm.
(n) :
Any of various specialized bacteria that are obligate parasites of plant phloem tissue and of some insects, characterized by the lack of a cell wall, a pleiomorphic or filamentous shape (normally with a diameter of less than one micrometer), and their very small genomes.
(n) :
Any of various specialized bacteria that are obligate parasites of plant phloem tissue and of some insects, characterized by the lack of a cell wall, a pleiomorphic or filamentous shape (normally with a diameter of less than one micrometer), and their very small genomes.