Search Results - (Author, Cooperation:C. S. Barry)
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1A. L. Powell ; C. V. Nguyen ; T. Hill ; K. L. Cheng ; R. Figueroa-Balderas ; H. Aktas ; H. Ashrafi ; C. Pons ; R. Fernandez-Munoz ; A. Vicente ; J. Lopez-Baltazar ; C. S. Barry ; Y. Liu ; R. Chetelat ; A. Granell ; A. Van Deynze ; J. J. Giovannoni ; A. B. Bennett
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-06-30Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Chloroplasts/*genetics/physiology ; Chromosome Mapping ; Chromosomes, Plant ; Fruit/genetics/growth & development ; Lycopersicon esculentum/*genetics/*growth & development ; Phenotype ; Plant Proteins/*genetics/physiology ; Transcription Factors/*genetics/physiologyPublished by: -
2Staff View
ISSN: 1573-5176Keywords: calcification ; biofilms ; crystal inhibitors ; freshwater algae ; anti-foulingSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Nine green algae, a diatom and three cyanobacteria were shown to precipitate CaCO3 in batch culture, when grown in the light in a hard water medium containing 68 mg L−1 soluble calcium. The composition of the medium was based on that found in a natural hardwater marina where precipitation of CaCO3 within algal biofilms occurred. Deposition occurred as a direct result of photosynthesis which caused an increase in the pH of the medium. Once a critical pH had been reached, typically approximately pH 9.0, precipitation began evidenced by a fall in the concentration of soluble calcium in the medium. Certain characteristics of the precipitation process displayed by the diatom Navicula sp. were different to those of the other algae. All algae produced extracellular crystals of irregular morphology. Using a standardized protocol employing the green algae Chlorococcum sp. and Stigeoclonium variabile, the effects of various inhibitors of CaCO3 nucleation or growth of crystals were studied. Fifteen compounds were screened and assessed for their performance in this context. Most materials effectively delayed deposition of CaCO3, many decreased precipitation rates and all had a marked effect on crystal morphology. The most effective compound was HEDP (1-hydroxyethylene 1,1 diphosphonic acid), which inhibited precipitation completely at a concentration of 2.5 mg L−1 The use of such compounds to reduce the precipitation of calcium salts within algal biofilms in natural hard waters is discussed.Type of Medium: Electronic ResourceURL: -
3Staff View
ISSN: 1617-4623Keywords: Key words ACC oxidase ; Promoters ; Tomato ; Transposable elementsSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract 1-aminocyclopropane-1-carboxylate (ACC) oxidase, which catalyses the terminal step in ethylene biosynthesis, is encoded by a small multigene family in tomato that is differentially expressed in response to developmental and environmental cues. In this study we report the isolation and sequencing of approximately 2 kb of 5′-flanking sequence of three tomato ACC oxidase genes (LEACO1, LEACO2, LEACO3) and the occurrence of class I and class II mobile element-like insertions in promoter and intron regions of two of them. The LEACO1 upstream region contains a 420-bp direct repeat which is present in multiple copies in the tomato genome and is very similar to sequences in the promoters of the tomato E4 and 2A11 genes. The region covering the repeats resembles the remnant of a retrotransposon. Two copies of a small transposable element, belonging to the Stowaway inverted repeat element family, have been found in the 5′-flanking sequence and the third intron of LEACO3.Type of Medium: Electronic ResourceURL: