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Observation on a Japanese Population of Pseudoamphisiella alveolata (Kahl, 1932) Song et Warren, 2000 (Ciliophora: Hypotrichida): Morphology and Morphogenesis
並列摘要
A population of Pseudoamphisiella alveolata was isolated from the coastal waters off Nagasaki, Japan. Its morphology and morphogenesis were studied by observations on organisms from life and following protargol impregnation. Morphometrical data of this form correspond well with those of the Chinese population, thus the validity of this species is confirmed. Its morphogenetic processes show a few that differ from those of P. lacazei, the type species of this genus, and main events are documented here: (1) The oral primordium of the opisthe and primary primordium of the fronto-ventral transverse cirri are possibly derived from an anarchic field of kinetosomes originating de novo on cell surface, and most ventral cirri do not contribute to the formation of these primordia; (2) The posterior portion of the parental adoral zone of membranelles is renewed in situ while the anterior part is retained by the proter; (3) Oblique streaks of FVT-anlagen in both dividers are generated from the division of primary primordium. Two buccal cirri are derived from the anterior two streaks of the FVT-anlagen; (4) The left marginal rows and dorsal kineties equally develop by ”within proliferation”; the caudal cirri develop from the posterior end of each dorsal kinety anlage; (5) The anlagen for the right marginal rows originate parallel to FVT-anlagen; (6) So-called caudal cirri near the rightmost transverse cirri are actually migratory right marginal cirri. The present study demonstrates that morphogenetic data can be useful in differentiating species and genera with similar morphologies.
延伸閱讀
- Hu, X. Z., Warren, A., & Suzuki, T. (2004). Morphology and Morphogenesis of Two Marine Ciliates, Pseudokeronopsis pararubra sp. n. and Amphisiella annulata from China and Japan (Protozoa: Ciliophora). Acta Protozoologica, 43(4), 351-368. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200412-201012290015-201012290015-351-368
- Ji, D. D., Xu, H. L., Choi, J. K., Warren, A., & Song, W. B. (2009). Taxonomic Characterization of Three Marine Peritrichous Ciliates from China: Zoothamnium alrasheidi spec. nov., Z. marinum Kahl, 1933 and Z. vermicola Precht, 1935 (Ciliophora: Peritrichia). Acta Protozoologica, 48(2), 171-183. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200906-201101060032-201101060032-171-183
- CHEN, L., ZHAO, X., SEREHY, H. A. E., HUANG, J., & CLAMP, J. C. (2017). Systematic Studies on the Hypotrich Ciliate, Tachysoma pellionellum (Müller, 1773) Borror, 1972 (Protozoa, Ciliophora) Based on Integrative Analyses: Morphology, Morphogenesis and Molecular Phylogeny. Acta Protozoologica, 56(4), 221-233. https://doi.org/10.4467/16890027AP.17.020.7822
- Li, L. Q., Shao, C., Yi, Z. Z., Song, W. B., Warren, A., Rasheid, K. A. S. A., Farraj, S. A. A., Quraishy, S. A. A., Zhang, Q. Q., Hu, X. Z., Zhu, M. Z., & Ma, H. G. (2008). Redescriptions and SSrRNA Gene Sequence Analyses of Two Marine Species of Aspidisca (Ciliophora, Euplotida) with Notes on Morphogenesis in A. orthopogon. Acta Protozoologica, 47(2), 83-94. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200806-201101060028-201101060028-83-94
- Shao, C., Song, W. B., Li, L. Q., Warren, A., & Hu, X. Z. (2007). Morphological and Morphogenetic Redescriptions of the Stichotrich Ciliate Diaxonella trimarginata Jankowski, 1979 (Ciliophora, Stichotrichia, Urostylida). Acta Protozoologica, 46(1), 25-39. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200703-201101060023-201101060023-25-39