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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 Publication | BIOLOGICAL RESEARCH
 |
| ISSN | 0716-9760 |
| Volume | 42Issue:4Pages:395 |
| Abstract | In 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 Area | Life Sciences & Biomedicine - Other Topics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000273308500001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/7826 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Gu, 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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