Meloidogyne camelliae Golden found on three species of Theaceae; the first report from the native land of the nematode.

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Meloidogyne camelliae Golden, 1979, which had been said to be a native of Japan, was found on cultivars of Camellia japonica and C. sasanqua in Sagamihara, Kanagawa, in September, 1979 and on Cleyera japonica later. The state of M. camelliae on these plants was investigated in February, 1980. Both Camellia sasanqua and Cleyera japonica, new hosts, seemed to be favorable for M. camelliae as is Camellia japonica. The distinction of M. camelliae from other species of Meloidogyne was possible with its outstanding perineal pattern. It seemed possible to distinguish M. camelliae from 5 species of Meloidogyne (M. arenaria, M. hapla, M. incognita, M. javanica, and M. mali), already known in Japan, with the measurements of 2nd-stage larvae. The measurements of M. camelliae were as follows: body length (455-504μm), tail length (40.8-44.9μm), c-value (11.0-11.8), position of excretory pore (18.6-19.4%). When aged hosts were heavily infected with M. camelliae, swellings of rootlets were recognized, and a couple of females were found embedded in the root-tissue. Wine-colored cyst-like females of M. camelliae, parasitized by a fungus, were found on both Camellia japonica and C. sasanqua. Considering the derivation of the investigated plants, M. camelliae may be distributed throughout, at least, Kanto district including Kanagawa and Saitama prefectures.
日本線虫学会の論文