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Author:
Date:
2015-02-20
[Abstract] The chloroplast is the site of photosynthesis that enabled and sustains aerobic life on Earth. Chloroplasts are relatively large organelles with a diameter of ~5 μm and width of ~2.5 μm, and so can be readily analysed by electron microscopy. Each chloroplast is enclosed by two envelope membranes, which encompass an aqueous matrix, the stroma and the thylakoids. Components of stroma include starch granules and plastoglobuli, which can be observed by electron microscopy. And the thylakoids consist of stromal thylakoid, granal thylakoid and as well as granum (a stack of thylakoids). These ...
[摘要] 叶绿体是光合作用的位点，其使得和维持地球上的有氧生命。叶绿体是相对大的细胞器，直径为〜5μm，宽度为〜2.5μm，因此可以容易地通过电子显微镜分析。每个叶绿体被两个包膜包封，其包含水性基质，基质和类囊体。基质的组分包括淀粉颗粒和塑性球体，其可以通过电子显微镜观察。类囊体由基质类囊体，颗粒类囊体以及颗粒（一叠类囊体）组成。这些结构组分对发展变化和环境变化（如干旱，盐度，寒冷，高温等）相当敏感。透射电子显微镜（TEM）是一种强大的技术，用于监测各种变化的参数或治疗对这些重要细胞器的发育和分化的影响。在这里我们描述一种可靠的方法通过TEM分析烟草植物的质体超微结构。
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