SYMBIONT RECOGNITION, MAINTENANCE, AND SPECIFICITY IN SORITID FORAMINIFERA

Soritid Foraminifera 中的共生体识别、维护和特异性

• 批准号: 6301684
• 负责人: JOHN J LEE
• 金额: $ 2.57万
• 依托单位: CITY COLLEGE OF NEW YORK
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-02-01 至 2001-01-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6301684
• 关键词: Dinoflagellates; Sarcodina; algae; antibody specificity; biochemical evolution; chemical binding; electrophoresis; host organism interaction; intermolecular interaction; microorganism population study; molecular shape; peptide chemical synthesis; radioimmunoassay; species difference; surface antigens; symbiosis; systematic biology; western blottings

Description (Adapted from Application): Members of one family of larger foraminifera, the Soritidae, are the hosts for a wide variety of unicellular endosymbiotic algae. It is reasonable to speculate that they have some symbiotic recognition and maintenance systems in common, and some of which are more specific. One interpretation is that, over time, the hosts an symbionts have maintained wide flexible relationships. This idea is contrary to a paradigm derived from studies of terminates and their parabasalian endosymbionts, which suggest that hosts and symbionts co-evolved. The investigator has identified an interesting evolutionary and systemic problem that suggests an alternative symbiotic evolutionary pathway that has potential for probing in the laboratory for probing in the laboratory. The study has the potential to show that a system of host/symbiont relationships that are not finical could have advantages for survival and adaptation in changing habitats. Tests of the speculation that soritid foraminifera acquire(d) dinoflagellate endosymbionts from environmental pools contributed to by coelenterates in their habitat are proposed. The aims of this proposal are: (1) to analyze the dinoflagellate species structure in populations of soritid larger foraminifera; (2) to compare the foraminiferal dinoflagellate endosymbiont species at collection sites with those of nearby corals and other invertebrates; and (3) to search for common surface antigens which may be involved in the initial signaling process and maintenance. Since this aspect of cellular evolution is highly developed in foraminifera, it is hoped that they will provide rich new models for the study of molecular interactions between phagotrophic unicellular eukaryotes and prey which has developed the ability to escape digestion.

描述（改编自申请）：一个较大家庭的成员 有孔虫纲 Soritidae 是多种昆虫的宿主 单细胞内共生藻类。有理由推测他们 有一些共同的共生识别和维护系统，并且 其中一些更为具体。一种解释是，随着时间的推移， 宿主与共生体保持着广泛灵活的关系。这 这个想法与从终止和研究中得出的范式相反 它们的副基底内共生体，这表明宿主和共生体 共同进化。研究人员发现了一个有趣的进化过程 和系统性问题表明另一种共生进化 具有在实验室中进行探测的潜力的途径 实验室。该研究有可能表明，一个系统 非财务的宿主/共生关系可能具有优势 为了在不断变化的栖息地中生存和适应。 Soritid foraminifera 获得推测的检验(d) 来自环境库的甲藻内共生体由 提出了在其栖息地中的腔肠动物。本提案的目的 是：（1）分析种群中甲藻的物种结构 较大的有孔虫 Soritid； (2) 有孔虫比较 收集地点的甲藻内共生物种 附近的珊瑚和其他无脊椎动物； (3) 寻找共同点 可能参与初始信号传导过程的表面抗原 和维护。由于细胞进化的这一方面是高度 在有孔虫中开发，希望它们能够提供丰富的新产品 研究吞噬细胞之间分子相互作用的模型 单细胞真核生物和猎物，已发展出以下能力： 逃避消化。