Heads, Tails, and Tools: Morphogenesis of a Giant Single-Celled Organism
نویسندگان
چکیده
منابع مشابه
Heads, Tails, and Tools: Morphogenesis of a Giant Single-Celled Organism
It’s (relatively) easy to conceptualize how multicellular organisms, like plants and people, generate the specialized structures they need for everyday life: cells differentiate to take on different tasks, such as photosynthesizing and breathing. But what about one-celled organisms? How do their components segregate within a single cell to develop head-to-tail polarity and unique structures, su...
متن کاملEvolution of Adaptive Behaviour in a Simulated Single-Celled Organism
A model of a single-celled organism comprising two interrelated parts (a genome and metabolism) is presented. The genome encodes operons that specify enzymes for the metabolism. The artiicial metabolism regulates the genome and constructs proteins (among other processes). The structure of operons in our model is governed by a parallel genomic language. Protein construction is accomplished with ...
متن کاملA Coevolutionary Model of a Single-Celled Organism with Double-Stranded Genome and Time-Varying Phenotype
A novel model of a single cell is outlined. Each cell is constructed from a double-stranded genome and ensemble of chemical concentrations and is modelled as a system of coupled nonlinear ordinary diierential equations. Cells are coevolved from genome (Darwinian evolution) and initial chemicals (Lamarckian evolution) to adapt to a simple environment. The Lamarckian evolution permits a cell line...
متن کاملSalt tolerance at single cell level in giant-celled Characeae
Characean plants provide an excellent experimental system for electrophysiology and physiology due to: (i) very large cell size, (ii) position on phylogenetic tree near the origin of land plants and (iii) continuous spectrum from very salt sensitive to very salt tolerant species. A range of experimental techniques is described, some unique to characean plants. Application of these methods provi...
متن کاملWhat do genic mutations tell us about the structural patterning of a complex single-celled organism?
Structural inheritance in the ciliate cortex. Ciliates make up a distinctive group of unicellular organisms characterized by dualism of germ line and somatic nuclei, sex by reciprocal exchange of gametic nuclei with subsequent replacement of the somatic nucleus, and an extraordinarily complex organization of the cell surface layer. This organization is dominated by cytoskeletal structures, incl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: PLoS Biology
سال: 2014
ISSN: 1545-7885
DOI: 10.1371/journal.pbio.1001862