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. 1974 Nov;120(2):583–589. doi: 10.1128/jb.120.2.583-589.1974

Unidirectional Growth and Branch Formation of a Morphological Mutant, Agrobacterium tumefaciens

Tamio Fujiwara a,1, Sakuzo Fukui a
PMCID: PMC245815  PMID: 4455684

Abstract

Morphological characteristics of thermoconditional mutant Agrobacterium tumefaciens F-502 were investigated in relation to growth, division, and synthesis of cellular components. As a result of a shift from 27 to 37 C, mutant cells altered their morphology from short rods to elongated and branched forms; in addition, division and deoxyribonucleic acid synthesis were inhibited at 37 C. At 37 C unidirectional cell growth and branch formation occurred at one end of a cell, and the elongation rate of a cell was proportional to cell length. A hypothetical model for branch formation is presented in which the maximal elongation rate, 1.8 μm/h, at one end of a cell is an essential factor for initiation of branch formation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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