24 Result(s)
within
S. Mahadevan
Life Sciences
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Article
Silence of the mutations
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Article
Catabolism of aromatic β-glucosides by bacteria can lead to antibiotics resistance
Antimicrobial resistance is a serious public health threat worldwide today. Escherichia coli is known to resist low doses of antibiotics in the presence of sodium salicylate and related compounds by mounting non-...
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Article
Diverse pathways for salicin utilization in Shigella sonnei and Escherichia coli carrying an impaired bgl operon
Utilization of the aryl-β-glucosides salicin or arbutin in most wild-type strains of E. coli is achieved by a single-step mutational activation of the bgl operon. Shigella sonnei, a branch of the diverse E. coli ...
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Article
Accumulation ofhns mutations specifically in stationary phase in anE. coli strain carrying an impairedrpoS locus
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Article
Mutational analysis of β-glucoside utilization inKlebsiella aerogenes: evidence for the presence of multiple genetic systems
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Article
Bacterial communication
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Article
TheEscherichia coli antiterminator protein BglG stabilizes the 5’ region of thebgl mRNA
Theβ-glucoside utilization (bgl) genes ofEscherichia coli are positively regulated by the product of thebglG gene, which functions as an antiterminator by binding to specific sequences present within thebgl mRNA....
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Article
About the special section
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Article
To b(gl) or not to b(gl): how cryptic are “cryptic” genes?
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Article
Reversion of anE. coli strain carrying an IS1-activatedbgl operon under nonselective conditions is predominantly due to deletions within the structural genes
Thebgl operon ofEscherichia coli, which encodes the genes necessary for transport and catabolism of β-glucosides, is silent in wild-type cells and is activated by the transposition of IS elements. The silent form...
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Article
Cryptic genes: Evolutionary puzzles
Many microorganisms carry genes that have the potential to code for specific functions but remain inactive during the normal lifetime of the organism. Such genes have been termed cryptic genes and their activa...
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Chapter and Conference Paper
Hormones and Cuscuta Development: Influence of Hormones on Secondary Xylem Differentiation, Phenylalanine Ammonia Lyase (PAL) Activity and Lignification
As with other plant growth and development processes, all five classes of plant hormones appear to influence xylem differentiation in whole, wounded, amputated or decapitated plants, isolated plant organs, exp...
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Article
Hormones andCuscuta development: IAA uptake transport and metabolism in relation to growth in the absence and presence of applied cytokinin
Transport of 1-14C-IAA in successive stem segments ofCuscuta was strictly basipetal in growing and non growing regions of the vine with a flux velocity of 10–12 mm/h (intercept method). This transport showed a di...
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Article
Hormones andCuscuta development: In vitro induction of haustoria by cytokinin and its inhibition by other hormones
Cytokinins induced haustoria formation in excised 10-mm segments ofCuscuta vine, the subapical 25-to-50-mm region being most responsive, producing a mean of 4–6 haustoria per segment. The order of effectiveness o...
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Article
Hormones andCuscuta development: interaction of cytokinin and indole-3-acetic acid in the growth and curvature of subapical stem segments
Cuscuta stem (vines) exhibits two modes of growth—longitudinal elongation forming free-hanging vines, or coiling growth to twine around the host. The elongation zone of free-hanging vine extended up to 160 mm fr...
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Article
Differential scanning calorimetric studies of native and freeze-damaged very low density lipoproteins in hen’s egg yolk plasma
Lipid thermal transition patterns of the very low density lipoproteins in native and variously treated egg yolk plasma and extracted total very low density lipoproteins lipids have been recorded by differentia...
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Article
High resolution nuclear magnetic resonance studies of hen’s egg yolk plasma lipoproteins
High resolution nuclear magnetic resonance spectra of native or protease-treated hen’s egg yolk plasma (very low density lipoproteins) were taken either in water or deuterated water; the protease-treated sampl...
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Article
Relationship between erucic acid and myocardial changes in male rats
The back and belly fat of pigs fed a diet containing 20% by wt rapeseed oil (22% erucic acid) for 16 weeks was rendered into oil. This rendered pig fat, which contained 5.6% erucic acid, was fed to male rats i...
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Article
Effect of cold stress on rapeseed oil fed rats
No mortality was observed in 6 week old male Sprague-Dawley rats subjected to cold at 4 C for 3 weeks and fed either a control diet (Chow) or a semisynthetic diet containing 20% by wt rapeseed oil high in eruc...
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Article
Brassica campestris var. Span: II. Cardiopathogenicity of fractions isolated from span rapeseed oil when fed to male rats
Rapeseed oils low in erucic acid caused myocardial lesions when fed to weanling male rats for 16 weeks. The cardiopathogenic properties appear to be associated with the triglycerides of the oil, and not to non...
