Systematic studies of the parameters influencing transformation efficiencies in Synechococcus R2 and its spontaneous pUH24 plasmid-minus variant S60, have led to substantial increases in these frequencies (up to 70 times for R2 and 9 times for S60) compared to those obtained by using previously publ
Clustering of genes involved in nitrate assimilation in the cyanobacterium Synechococcus
✍ Scribed by Luque, Ignacio ;Herrero, Antonia ;Flores, Enrique ;Madueño, Francisco
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 566 KB
- Volume
- 232
- Category
- Article
- ISSN
- 0026-8925
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✦ Synopsis
A region of the genome of the cyanobacterium Synechococcus R2, that bears a cluster of genes involved in nitrate assimilation, has been cloned and the relative positions of some of the genes in the region have been determined. Mutations generated by insertion of an antibiotic-resistance gene cassette into the gene encoding nitrite reductase are associated with reduced expression of nitrate reductase; cotranscription of nitrate assimilation genes in the cluster is inferred from this finding.
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