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Over the last 20 years, the systematic application of molecular methodologies has revealed a series of cellular events that contribute to cancer development. Although it is clear that each tumor type is unique in terms of pathogenesis and progression, carcinogenesis seems to follow some characteristic fundamental principles, including nonlethal genetic damage, clonal expansion of a single transformed...
We investigated the organization of the cortical endoplasmic reticulum (ER) in prophase cells of the angiosperms Zea mays, Triticum turgidum, and Vigna sinensis. In both symmetrically and asymmetrically dividing protodermal leaf cells, cortical ER was enriched in the preprophase band and colocalized there with microtubules, forming a ring‐like structure (ER ring). In contrast, ER ring was absent from...
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