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題 名 | 細胞內共生物Wolbachia之生物學特性=Biological Characteristics of the Endosymbiont Wolbachia |
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作 者 | 蔡坤憲; 吳文哲; 陳維鈞; | 書刊名 | 臺灣昆蟲 |
卷 期 | 22:1 2002.03[民91.03] |
頁 次 | 頁1-18 |
分類號 | 383.9 |
關鍵詞 | 立克次氏體; 細胞內共生物; 細胞質遺傳; 節肢動物; Wolbachia; Endosymbiont; Cytoplasmic heredity; Arthropod; |
語 文 | 中文(Chinese) |
中文摘要 | Wolbachia普遍存在於節肢動物的生殖細胞及體細胞中,是一種藉由母系遺傳的立克次氏體。感染Wolbachia的寄主,可能導致細胞質不親和性、孤雌生殖、以及子代雌性化等生殖現象的改變。近年來的研究報告顯示有超過16%的昆蟲種類帶有Wolbachia,其它節肢動物如甲殼綱的等足目、蜘蛛綱的蟎類、以及圓形動物線蟲綱的寄生性絲蟲等無脊椎動物,也陸續被發現有感染Wolbachia的情形。Wolbachia之所以日漸受到重視主要的原因有四:(1)Wolbachia在寄主體內分佈廣泛,並能影響寄主的生殖和發育,這種機制在種化過程中可能扮演重要的角色。(2)Wolbachia為細胞內共生物,其發育與有絲分裂都在寄主身上完成,兩者之間的交互作用,有許多值得深入探討之處。(3)Wolbachia可能用來傳遞一些抗病及抗蟲基因,以抑制昆蟲族群或昆蟲的病媒能力。(4)Wolbachia在寄生性絲蟲中的發現,可能開啟絲蟲病治療的新契機。本文主要著重於介紹Wolbachia的生物學特性,包括Wolbachia在自然界的存在、地位及其與寄主之間的關係,並論及應用Wolbachia作為寄主個體間傳遞基因之工具的可能性。 |
英文摘要 | Wolbachia spp. are maternally inherited rickettsiae that infect both germ cells and somatic cells of various arthropods. They have been found to infect more than 16% of insect species, as well as a number of other invertebrates such as mites, isopods, and filarial nematodes. Infection by Wolbachia is distinguished by its ability to modify host reproductive phenotypes including cytoplasmic incompatibility, parthenogenesis, and feminization. Recent studies on interactions between Wolbachia and hosts have shed light on: (1) its potential role in rapid speciation of the host; (2) its ability to alter early development and mitotic processes of the host; (3) its significance in spreading desirable genetic modifications in an insect population, and the subsequent inhibition of insect populations and/or vector competence; and (4) developments of new strategies to control infection of filaria in which Wolbachia is usually harbored and eventually becomes essential to the nematodes. In this report, the application of Wolbachia for the management of vector -borne diseases through transgenic techniques is also discussed. |
本系統中英文摘要資訊取自各篇刊載內容。