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Bacterial cell division is a highly co-ordinated and fine-tuned process. In the unicellular cyanobacterium Synechococcus sp. strain PCC 7942, inactivating mutations in the ftn2 and ftn6 genes block cell division and result in a phenotype with extensively elongated cells. In order to establish the pleiotropic responses induced and cellular processes affected(More)
The filamentous cyanobacteria of the genus Nostoc are globally distributed, phenotypically complex organisms, capable of cellular differentiation and of forming symbiotic associations with a wide range of plants. To further our understanding of these processes and functions, the proteome of photoautotrophically and diazotrophically grown Nostoc sp. PCC(More)
The cellular and subcellular localization of FtsZ, a bacterial cell division protein, were investigated in vegetative cells of the filamentous cyanobacterium Nostoc/Anabaena sp. strain PCC 7120. We show by using immunogold-transmission electron microscopy that FtsZ forms a ring structure in a filamentous cyanobacterium, similar to observations in(More)
Molecular mechanisms behind adaptations in the cyanobacterium (Nostoc sp.) to a life in endosymbiosis with plants are still not clarified, nor are the interactions between the partners. To get further insights, the proteome of a Nostoc strain, freshly isolated from the symbiotic gland tissue of the angiosperm Gunnera manicata Linden, was analyzed and(More)
SUMMARY The unicellular cyanobacterium Synechococcus PCC 7942 has been used as a model organism for studies of prokaryotic circadian rhythms, carbon-concentrating mechanisms, response to a variety of nutrient and environmental stresses, and cell division. This paper presents the results of the first proteomic exploratory study of Synechococcus PCC 7942. The(More)
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