获得在指形形成过程中达到顶点的能力在DICTYOSTELIUM DISCOIDEUM中形成指形
Akira Ishikawa1, Seiichi Tomita1, Yasuhiko Ando1
1Biological Institute, Faculty of Science, Shizuoka University, Oya 836, Shizuoka 422, Japan.
Development, growth & differentiation
|June 7, 2023
概括
细胞粘液菌的发展,Dictyostelium discoideum,显示了依赖光的高潮. 在光线下破坏的指纹结构迅速形成果实体,而深色的结构则对破坏后的光线线做出反应.
科学领域:
- 发展生物学 发展生物学
- 细胞粘液模具 细胞粘液模具
- 迪克托斯利乌姆迪斯科伊迪乌姆
背景情况:
- 细胞粘液模具表现出复杂的发育过程.
- 在Dictyostelium discoideum中,形态发生涉及不同的多细胞阶段.
研究的目的:
- 研究光线对Dictyostelium discoideum发育可塑性的影响.
- 确定破坏的细胞聚合物可以重新启动特定发育途径的条件.
主要方法:
- 使用细针破坏类似手指的结构.
- 在干扰后的发展过程中对光条件 (头部,单边,暗) 的控制操作.
- 观察和分析后续的发育阶段,包括高潮,手指形成和迁移.
主要成果:
- 在上空光下形成的手指被破坏,迅速达到结成果实体的高潮.
- 黑色养的手指的细胞质量显示出依赖光的发育:上空的光诱导了高潮,而单边的光诱导了更新的手指形成和的迁移.
- 不管照明条件如何,被打破的山丘与尖端形成的手指.
结论:
- 在手指形成过程中暴露于光线会诱导在Dictyostelium discoideum中达到顶峰的能力.
- 破坏后的光线线可以指导细胞粘液模具聚合物的发育轨迹.
- 发育阶段和环境条件显著影响对外部刺激的反应.
相关概念视频
01:27Diversity of Protists IV
49
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
49
01:39Mechanism of Filopodia Formation
2.4K
Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
2.4K