Synthesis of Ribosomal RNA during the Mitotic Cycle in the Slime Mould Physarum polycephalum
نویسندگان
چکیده
منابع مشابه
Sounds Synthesis with Slime Mould of Physarum Polycephalum
This paper introduces a novel application of bionic engineering: a bionic musical instrument using Physarum polycephalum. Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a giant amoeba. During its foraging behavior this plasmodium produces electrical activity corresponding to different physiological states. We developed a method to render sounds from suc...
متن کاملIn vivo transcription of ribosomal RNA in relation to the mitotic cycle in Physarum polycephalum.
We have investigated the transcription of ribosomal RNA in plasmodia of Physarum polycephalum by a combination of pulse-labelling with [3H]uridine and RNA:DNA hybridization. The DNA used for the hybridization was a HindIII restriction fragment (cloned in bacteriophage lambda) of Physarum ribosomal DNA that carries a substantial fraction of the rRNA genes, enabling the ribosomal transcripts in t...
متن کاملStudies on pulse-labelled RNA during the mitotic cycle of Physarum polycephalum by subnuclear fractionation.
A method is described for the isolation of pulse-labelled RNA from nuclei and subnuclear fractions of Physarum polycephalum. At all times during interphase the nucleolar RNA consisted mainly of a 34-S rRNA precursor with only small amounts of 26-S and 19-S rRNAs. The nucleoplasmic RNA consisted of predominantly mature 26-S rRNA with small amounts of 19-S rRNA and a 30-S RNA species. The 30-S RN...
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The plasmodium of slime mould Physarum polycephalum behaves as an amorphous reaction-diffusion computing substrate and is capable of apparently ‘intelligent’ behaviour. But how does intelligence emerge in an acellular organism? Through a range of laboratory experiments, we visualise the plasmodial cytoskeleton – a ubiquitous cellular protein scaffold whose functions are manifold and essential t...
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The plasmodium of Physarum polycephalum is a large single cell visible with the naked eye. When inoculated on a substrate with attractants and repellents the plasmodium develops optimal networks of protoplasmic tubes which span sites of attractants (i.e. nutrients) yet avoid domains with a high nutrient concentration. It should therefore be possible to program the plasmodium towards determinist...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1976
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1976.tb10180.x