华北农学报 ›› 2007, Vol. 22 ›› Issue (3): 101-104. doi: 10.3321/j.issn:1000-7091.2007.03.024

所属专题: 玉米

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利用荧光探针和激光共聚焦显微镜显示玉米根冠细胞微丝分布与变化

陈颖1, 郝秋娟1, 杨虹1, 王立安2   

  1. 1. 河北经贸大学生物科学与工程学院, 河北 石家庄 050061;
    2. 河北师范大学生命科学学院, 河北 石家庄 050016
  • 收稿日期:2007-02-18 出版日期:2007-06-28
  • 通讯作者: 王立安(1965-),男,河北定兴人,教授,博士,硕士生导师,主要从事真菌生化与分子生物学研究工作。
  • 作者简介:陈颖(1974-),女,吉林长春人,副教授,博士,主要从事植物生理生化研究工作。
  • 基金资助:
    河北省自然科学基金资助项目(300163)

Distribution and Variation of Microfilaments in the Root Cap Cells of Maize under CLSM

CHEN Ying1, HAO Qiu-juan1, YANG Hong1, WANG Li-an2   

  1. 1. College of Biology Science and Engineering, Hebei Economic and Business University, Shijiazhuang 050061, China;
    2. College of Life Science, Hebei Normal University, Shijiazhuang 050016, China
  • Received:2007-02-18 Published:2007-06-28

摘要: 利用罗丹明标记的鬼笔环肽为荧光探针,通过激光共聚焦荧光显微镜,观察了玉米根冠细胞中微丝的分布与变化。结果显示:脱落的玉米根冠细胞中存在微丝网络,纤细的微丝相互交织,并与荧光颗粒交叉相连,其中在细胞核、质体等细胞器周围较密集,可见放射状微丝束,暗示微丝的功能与细胞核、细胞器的活动相关。细胞松弛素B可破坏微丝分布;来自玉米小斑病菌C小种的致病毒素对微丝网络也有专化破坏作用,并且它们对微丝的破坏作用随着浓度的增大而加强。

关键词: 根冠细胞, 微丝, 玉米小斑病菌C小种致病毒素(HMC), 激光共聚焦显微镜

Abstract: The distribution and variation of microfilaments (MFs) in the maize root cap detached cells were examined under confocal laser scanning microscopy (CLSM) by using TRITC-phalloidin (TRITC-Ph) as fluorescent probe. The results showed that the microfilaments network was distributed on the root cells. The microfilaments were interweaved each other and connected with fluorescent particles. The microfilaments networks were dense and some radiative MFs bundles distributed around the nucleus and organelles. This suggested that the microfilaments were correlative with their function. Both CB and HMC toxin, a host-specific toxin from Bipolaris (Helminthosporium) maydis race C, could destroy the MFs distribution and had obvious quantity-effects relations.

Key words: Root cap cells, Microfilaments (MFs), Bipolaris (Helminthosporium) maydis race C toxin (HMC), Confocal laser scanning microscope (CLSM)

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引用本文

陈颖, 郝秋娟, 杨虹, 王立安. 利用荧光探针和激光共聚焦显微镜显示玉米根冠细胞微丝分布与变化[J]. 华北农学报, 2007, 22(3): 101-104. doi: 10.3321/j.issn:1000-7091.2007.03.024.

CHEN Ying, HAO Qiu-juan, YANG Hong, WANG Li-an. Distribution and Variation of Microfilaments in the Root Cap Cells of Maize under CLSM[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(3): 101-104. doi: 10.3321/j.issn:1000-7091.2007.03.024.

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