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Changes of ploidy during the Azotobacter vinelandii growth cycle.

Rafael Maldonado, +2 more
- 01 Jul 1994 - 
- Vol. 176, Iss: 13, pp 3911-3919
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TLDR
Growth in minimal medium does not result in the spectacular changes of ploidy observed during rapid growth; this observation suggests that the polyploidy of A. vinelandii may not exist outside the laboratory.
Abstract
This work was supported by grant PB89/0627 from the DGICYT of the Government of Spain. R.M. was a predoctoral fellow under the PFPI program of the Regional Government of Andalusia (Junta de Andalucia), Spain.

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Streamlining and Simplification of Microbial Genome Architecture

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References
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Journal ArticleDOI

Acetylornithinase of Escherichia coli: partial purification and some properties.

TL;DR: Compounds Used-N”l-Acetyl-n-ornithine was synthesized as previously described and L-Ornithine monohydrochloride was obtained from the Mann Research Laboratories.
Journal ArticleDOI

Separation of large DNA molecules by contour-clamped homogeneous electric fields

TL;DR: Electric fields can be manipulated by a method in which multiple electrodes are arranged along a closed contour and clamped to predetermined electric potentials and the pattern of separation is independent of position in the gel, which is an advantage over previous methods.
Journal ArticleDOI

DNA synthesis during the division cycle of rapidly growing Escherichia coli B/r.

TL;DR: In this paper, it was shown that the cell age at which rounds of DNA replication begin is variable and depends upon the growth rate, and that the time for a complete round of replication is constant and independent of the growing rate.
Journal ArticleDOI

Organization of the bacterial chromosome.

TL;DR: A model depicting the dynamics of the evolution and genetic activity of the bacterial chromosome is described which entails acquisition by recombination of clonal segments within the chromosome, consistent with only a few genetic types of E. coli worldwide.
Journal ArticleDOI

A physical map of the Escherichia coli K12 genome.

TL;DR: A physical map of a genome is the structure of its DNA, and the resulting ordered set of fragments is a macrorestriction map that facilitates genetic and molecular studies on E. coli and serves as a model for further endeavors on larger genomes.
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