| 释义 |
sporont Zool.|ˈspɒrɒnt, spəˈrɒnt|
[f. sporo- + Gr. ὀντ-, ὤν, pres. pple. of εἶναι to be, exist.]
A protozoan cell at a stage of the life cycle following syngenesis and preceding the formation of spores.
1885[see cephalont]. 1900Jrnl. R. Microsc. Soc. 337 The macrogametes are fertilised by microgametes, and in each case an oocyst is formed round the conjugates. The new nucleus (sporont-nucleus) divides, the daughter-nuclei also divide, and later the protoplasm, so that four sporoblasts are formed within the oocyst. 1912[see gamont]. 1947Ann. Rev. Microbiol. I. 7 Fusion of these gametes in pairs produces eight zygotes which become sporonts. 1977Jrnl. Protozool. XXIV. 55/1 Binucleate and quadrinucleate sporonts..were observed.
Hence sporontiˈcidal a. [-cide], lethal to sporonts.
1970W. Peters Chemotherapy & Drug Resistance in Malaria iv. 123 Pyrimethamine alone at a dose of 0·078 mg/kg had no sporontocidal action. 1977Martindale's Extra Pharmacopoeia (ed. 27) 343/2 The biguanides..have..a rapid sporonticidal action against some strains. |