冠突伪尾柱虫腹皮层纤毛器的扫描电镜观察
任志红,范鑫鹏*,倪 兵,顾福康
(华东师范大学生命科学学院,上海200062)
摘 要 应用扫描电镜观察显示了纤毛虫冠突伪尾柱虫(Pseudourostyla cristata)腹皮层纤毛器的形态和形态发生特征。其中每片口围带小膜包括4列副小膜,第1列仅包含3个基体,此列在翻领部与其余3列紧密排列,在领部则位于分隔两列相邻小膜之间的嵴上。口围带在翻领部具有长度不等的侧向纤毛。形态发生中,前仔虫口围带的翻领部和领部两端是完全更新形成的,领部其余部分则保留下来。后仔虫的口围带原基最初于左列中腹棘毛左侧形成。此外,形态发生期间老的口围带小膜后端一部分小膜保留,其随着逐步向后迁移,最后出现在后仔虫口围带的最前端,这部分老的口围带小膜可能对后仔虫口围带的形成有一定的物质贡献作用,或与中腹棘毛共同参与了后仔虫口围带的形成,这可能代表了腹毛类纤毛虫的一种新的口器形成模式。
关键词 冠突伪尾柱虫;口围带;形态发生;扫描电镜术
中图分类号:Q952;Q954;Q336 文献标识码:A doi:10.3969/j.issn.1000-6281.2017.04.011
Scanning electron microscopic observation on the ventral cortical ciliature of Pseudourostyla cristata
REN Zhi-hong, FAN Xin-peng*, NI Bing, GU Fu-kang
(School of Life Sciences,East China Normal University, Shanghai 200062,China)
Abstract The characteristics of morphology and morphogenesis of ventral cortical ciliature of ciliate Pseudourostyla cristata were observed by scanning electron microscope. Each membranelle of the adoral zone of membranelles (AZM) included four rows of paramembranelles. The first row only included three basal bodies and arranged closely with other three rows in the lapel part (AZM-L), while it was located in the ridge of separating two adjacent membranelles in the collar part (AZM-C). The AZM-L had lateral cilia with various length. During morphogenesis, the AZM-L and the ends of AZM-C of the proter were renewed, while the other part of AZM-C were remained. The primordia of AZM of opisthe were formed at the left of left row of mid-ventral cirri. Moreover, some membranelles at the posterior end of old AZM were left during morphogenesis and moved backwards to the most anterior end of AZM of opisthe. These membranelles of old AZM may supply some substances and may take part in the formation of AZM of the opisthe with mid-ventral cirri, which may represent a new mode of stomatogenesis in hypotrichs.
Keywords Pseudourostyla cristata;AZM (adoral zone of membranelles);morphogenesis;scanning electron microscope
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[1] 顾福康. 原生动物学概论[M]. 北京:高等教育出版社,1991: 180–205.
[2] JERKA-DZIADOSZ M. Urostyla cristata sp. n. (Urostylidae, Hypotrichida),the morphology and morphogenesis [J]. Acta Protozoology,1964,2 (11): 123–138.
[3] JERKA-DZIADOSZ M. Cortical development in Urostyla. I. Comparative study on morphogenesis in U. cristata and U. Grandis [J]. Acta Protozoology, 1972, 10 (3): 73–100.
[4] 金立培. 冠突伪尾柱虫前仔虫口围带小膜数的调节[J]. 中山大学学报,1996, 35 (4):86–89.
[5] CHEN X, LI Z, HU X, et al. Morphology, morphogenesis and gene sequence of a freshwater ciliate, Pseudourostyla cristata (Ciliophora, Urostyloidea) from the ancient Lake Biwa, Japan [J]. European Journal of Protistology, 2010, 46 (1): 43–60.
[6] 张作人,庞延斌,邹士法. 尾柱虫(Urostyla cristata)的形态发生研究[J]. 动物学研究,1982 (3): 1–9.
[7] 周素娟,尹飞,生欣,等. 冠突伪尾柱虫腹皮层纤毛器微管胞器的形态及其形态发生[J]. 动物学报,2008, 54 (2): 299–308.
[8] YASUZUMI G. Electron microscope studies of the cilia of Urostyla cristata Jerka-Dziadosz [J]. Monitore Zoologico Italiano-Italian Journal of Zoology, 1972, 6 (1): 1–9.
[9] 金立培,张志宇. 伪尾柱虫有性周期中纤毛器原基的发生与决定[J]. 中山大学学报(自然科学版),1997, 36 (1): 61–64.
[10] 顾福康,庞延斌,张作人. 一种游仆虫无性分裂生殖的研究Ⅰ. 形态学和核器的演化[J]. 动物学报,1987, 33 (3): 244–247.
[11] MARTÍN-GONZÁLEZ A, SERRANO S, FERNANDEZ-GALIANO D. New aspects of the morphology of Pleurotricha lanceolata (Ciliophora, Hypotrichida): cirral and membranellar patterns and fibrillar systems [J]. Journal of Eukaryotic Microbiology, 1984, 31 (2): 347–351.
[12] JERKA-DZIADOSZ M. Ultrastructural study on development of the hypotrich ciliate Paraurostyla weissei II. Formation of the adoral zone of membranelles and its bearing on problems of ciliate morphogenesis [J]. Protistologica, 1981, 17 (1): 67–81.
[13] GRIMES G W. Cortical structure in nondividing and cortical morphogenesis in dividing Oxytricha fallax [J]. The Journal of Protozoology, 1972, 19 (3): 428–428.
[14] 倪兵,季玲妹,张许枚,等. 阔口尖毛虫纤毛器皮层和细胞核的超微结构观察[J]. 华东师范大学学报:自然科学版,1988 (5): 85–90.
[15] 冯玲玲,郭键,鲍小娟,等. 草丛土毛虫的超微结构观察[J]. 复旦学报:自然科学版,2009, 48 (3): 367–374.
[16] WIACKOWSKI K. Morphology and morphogenesis of a new species in the genus Pseudourostyla (Hypotrichida, Ciliophora) [J]. Journal of Natural History, 1988, 22 (4): 1085–1094.
[17] 周瑶,余齐耀,俞丽丽,等. 新伪尾柱虫腹皮层纤毛器微管胞器的形态和形态发生[J]. 动物学杂志,2009, 44 (6): 74–80.
[18] JUNG J H, PARK K M, MIN G S. Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea [J]. Zootaxa, 2012, 3334: 42–54.
[19] CHEN X, MIAO M, MA H, et al. Morphology, ontogeny, and phylogeny of two brackish Urostylid ciliates (Protist, Ciliophora, Hypotricha) [J]. Journal of Eukaryotic Microbiology, 2014, 61 (6): 594–610.
[20] 宋微波. 纤毛虫原生动物的细胞发生模式研究——多样性与新进展[J]. 中国海洋大学学报(自然科学版),2004, 34(5): 747–757.
[21] 张作人,庞延斌,顾福康. 红色角毛虫的形态学和形态发生过程的研究[J]. 动物学报,1985, 31 (1): 59–64.
[22] 刘小意,金立培. 念珠伪角毛虫的形态学及形态发生的研究[J]. 中山大学学报(自然科学版),2000, 39 (S2):82–86.
[23] WICKLOW B J. The Discocephalina (n. subord) –ultrastructure, morphogenesis and evolutionary implications of a group of endemic marine interstitial hypotrichs (Ciliophora, Protozoa) [J]. Protistologica, 1982, 18 (3): 299–330.
[24] MARTIN J, FEDRIANI C, NIETO J. Étude comparée des processus morphogénétiques d’Uroleptus sp. (Kahl,1932) et de Holosticha (Paruroleptus) musculus (Kahl,1932) (Ciliés hypotriches) [J]. Protistologica, 1981, 17: 215–224.