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Some ultrastructural observations of the vegetative, resting and excysting ciliate, urostyla grandis (urostylidae, hypotrichida)
Zhao, L; Li, YS; Li, JG(李俊刚); Gu, FK; Gu, FK (reprint author), E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China
2009
Source PublicationBIOLOGICAL RESEARCH
ISSN0716-9760
Volume42Issue:4Pages:395
AbstractIn order to reveal the differentiation characteristics of organelles of ciliates under different physiological status, the cellular ultrastructure of Urostyla grandis was studied by transmission electron microscopy. In the resting cells most ciliary shafts, kinetosomes and sub-pellicle microtubules were resorbed, and the endoplasmic reticulum (ER) disappeared with the autophagocytosis taking place within the cytoplasm. As well, the nuclear matrix of the macronucleus Was extruded into the cytoplasm, forming pseudopodia-like structures with large quantities of heterochromatin (CH) attached to the inner nuclear membrane. During excystment. membraneous structures developed and gradually increased in number to form the ER. Autophagic vacuoles (AVs) appeared containing mitochondria. paraglycogen particles (PGP), membraneous structures, etc. Moreover, the number Of nucleoli decreased with the chromatin, condensing in parallel with the process of recombination. Based oil these observations, it could be concluded that the de-differentiation of microtubular organelles and the changes occurring in macronuclei in the resting Urostyla grandis, as well as the differentiation of cytoplasmic organelles, digestion by AVs. and the recombination of chromatin during excystment, are not similar to events that occur in non-kinetosome-resorbing cysts (NKR).
Subject AreaLife Sciences & Biomedicine - Other Topics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000273308500001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/7826
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorGu, FK (reprint author), E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China
Recommended Citation
GB/T 7714
Zhao, L,Li, YS,Li, JG,et al. Some ultrastructural observations of the vegetative, resting and excysting ciliate, urostyla grandis (urostylidae, hypotrichida)[J]. BIOLOGICAL RESEARCH,2009,42(4):395.
APA Zhao, L,Li, YS,Li, JG,Gu, FK,&Gu, FK .(2009).Some ultrastructural observations of the vegetative, resting and excysting ciliate, urostyla grandis (urostylidae, hypotrichida).BIOLOGICAL RESEARCH,42(4),395.
MLA Zhao, L,et al."Some ultrastructural observations of the vegetative, resting and excysting ciliate, urostyla grandis (urostylidae, hypotrichida)".BIOLOGICAL RESEARCH 42.4(2009):395.
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