マダニ科とヒメダニ科ダニの吸血時における塩素平衡

概要

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Comparative investigations were carried out on the chloride content in the hemolymph, saliva, and whole bodies of Haemaphysalis longicornis and Boophilus microplus of Ixodidae and the whole hemolymph, saliva, coxal fluid, urine, and whole bodies of Argas japonicus and Ornithodoros moubata of Argasidae. The chloride concentrations in the hemolymph of these four ticks were at relatively constant levels, which were about 1.5 times as high as that of the host blood during the feeding process in ixodids and also argasids in spite of different conditions of stage, sex, and feeding state. The chloride concentrations in the saliva of the ticks were nearly equal to, or higher than, those of the hemolymph and the values of the coxal fluid were in a range similar to those of the hemolymph. In the chloride balance of ticks, the Malpighian tubules play a secondary role, as compared with insects. Elimination of surplus chloride from the body for osmo-regulation of the hemolymph during the process of condensation of blood components was attributable to the salivary secretion in ixodids and the coxal fluid secretion in argasids. It was presumed that the difference between both families in the manner of chloride balance in the feeding process might be connected to the great difference in their feeding habits ; that is, generally ixodid ticks are slow feeders and argasid ticks quick feeders.
日本応用動物昆虫学会の論文
1971-09-25