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J Integr Plant Biol, 1994, 36 (1): -, Research Article
Scanning Electron Microscopic Study of Cytoskeleton in Isolated Generative Cells of Lily
Xu Shi-xiong(S Y Zee) and Ye Xiu- lin
Isolated generative cells of lily were extracted with Triton X-100, ammonium sulphate and RNase. The exposed contents were then viewed in the scanning electron microscope after critical point drying. The treatments revealed that in the cytoplasm of the generative cell there was a reticulate network of cytoskeleton. This reticulate network of cytoskeletal scaffold had two layers: (1) an outer layer (near the membrane) consisting of long and thick fibres that were tightly knitted together, and (2) an inner layer (near the nucleus) consisting of thin and short fibres that were loosely knitted together. Indirect evidence using immunofluorescence techniques for labelling microtubules and TRITC-phalloidin staining of actin microfilaments indicated that the cytoskeleton seen in the scanning electron microscope appeared likely to be a microtubule cytoskeleton rather than a microfilament cytoskeleton.
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