Abstract:
:Although cytoplasmic bridges between adjacent cells in the filaments of nitrogen-fixing cyanobacteria have been known for decades, the existence also of a continuous periplasm along the filaments raised the possibility that alternative modes of communication between cells could be utilized. The latter hypothesis was investigated by using GFP fusions to proteins whose expression is cell-specific and engineered to be transported into the periplasm. Two groups have recently obtained contradictory results, one supporting periplasmic transport of GFP from cell to cell, the other not. A third effort, involving members of the first group, used a smaller, soluble fluorophore and found rapid communication via the cytoplasmic bridges between cells. The dilemma of periplasmic diffusion remains unresolved.
journal_name
Mol Microbioljournal_title
Molecular microbiologyauthors
Haselkorn Rdoi
10.1111/j.1365-2958.2008.06475.xsubject
Has Abstractpub_date
2008-11-01 00:00:00pages
783-5issue
4eissn
0950-382Xissn
1365-2958pii
MMI6475journal_volume
70pub_type
评论,杂志文章abstract::The analysis of completed archaeal genome sequences led to the identification of a set of approximately 10-20 genes whose protein products were inferred to be involved in chromosomal DNA replication. Until recently, however, little was known of the biochemical properties of these proteins. Here, I review recent progre...
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