A Mobilizable Shuttle Vector for the Cyanobacterium Plectonema Boryanum
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چکیده
منابع مشابه
A mobilizable shuttle vector for the cyanobacterium Plectonema boryanum
Plasmid pSUP5011 contains a pMBl origin of replication, an origin of transfer (oriT), and genes encoding resistance to the antibiotics ampicillin, chloramphenicol and kanamycin. pSUP5011 was conjugally mobilized from Escherichia coli into the non-heterocystous, filamentous, nitrogen-fixing cyanobacterium Plectonema boryanum UTEX 594 in the presence of a helper plasmid, RP4. Transconjugant cyano...
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The gene (nirA) for nitrite reductase was cloned from the nonheterocystous, filamentous cyanobacterium Plectonema boryanum. The predicted protein consists of 654 amino acids and has a calculated molecular weight of 72,135. The deduced amino acid sequence from positions 1 to 511 is strongly similar to the entire sequence of the ferredoxin-dependent nitrite reductases from other phototrophs, whil...
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The cyanobacteria are an ancient group of Gram-negative prokaryotes. In addition to photosynthesis, the cyanobacteria possess many other interesting features: a) nitrogen-fixation, b) cellular differentiation, c) regulated genomic rearrangements (1, 2) and, d) introns (3). Studies of these features in the filamentous cyanobacteria are hampered by a lack of shuttle vectors. Currently, there is o...
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The Present paper deals with the herbicide Butachlor (5,10 ,20,40 and 80ppm)-induced changes in physiological and biochemical parameters related to photosynthesis and defense systems in paddy field cyanobacterium Plectonema boryanum grown under laboratory conditions. Growth and photosynthetic pigments, i.e., chlorophyll a and carotenoids were adversely affected by Butachlor treatment and the in...
متن کاملActive transport of glucose and alpha-methylglucoside in the cyanobacterium Plectonema boryanum.
An active transport system common to glucose and to its nonmetabolizable analogue cu-methylglucoside is demanstrated in the cyanobacterium Plertonema borganum. Dark incubation of the cells in the presence of glucose induces the uptake of both substrates, similarly. Whereas glucose is continuously incorporated, the steady state concentration of cr-methylglucoside (13.2 to 20 mM intracellular/O.2...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1993
ISSN: 0022-1287
DOI: 10.1099/00221287-139-3-569