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  • 1
    ISSN: 1432-2048
    Keywords: Key words: Auxin ; Fragaria ; Fruit quality ; Fruit ripening ; Gene expression ; Metabolic pathways
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. The ripening of strawberry (Fragaria ananassa Duch.), a non-climacteric fruit, is a complex developmental process that involves many changes in gene expression. To understand how these changes relate to the biochemistry and composition of the fruit the specific genes involved have been examined. A high-quality cDNA library prepared from ripe strawberry fruit was differentially screened for ripening-related clones using cDNA from ripe and white fruits. From 112 up-regulated clones obtained in the primary screen, 66 differentially expressed clones were isolated from the secondary screen. The partial sequences of these cDNAs were compared with database sequences and 26 families of non-redundant clones were identified. Northern analysis confirmed that all of these cDNAs were ripening-enhanced. The expression of many of their corresponding genes was negatively regulated in auxin-treated fruit. These sequences, several of which are novel to fruits, encode proteins involved in key metabolic events including anthocyanin biosynthesis, cell wall degradation, sucrose and lipid metabolism, protein synthesis and degradation, and respiration. These findings are discussed in relation to the role of these genes in determining fruit quality characteristics.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] A major component in the regulatory network controlling fruit ripening is likely to be the gene at the tomato Colorless non-ripening (Cnr) locus. The Cnr mutation results in colorless fruits with a substantial loss of cell-to-cell adhesion. The nature of the mutation and the identity of the Cnr ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 165 (1977), S. 21-22 
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Summary A procedure is described whereby the nitrosation of sarcosine can be followed spectrophotometrically in the presence of either hydrophilic or lipophilic antioxidants. Using this technique, a number of antioxidants of both classes at a concentration of 2.0 mmol have inhibited strongly the formation ofN-nitrosarcosine from 25 mmol-sarcosine and 25 mmol-nitrite.
    Notes: Zusammenfassung Es wird ein Arbeitsverfahren beschrieben, wodurch die Nitrosierung von Sarkosin beim Vorhandensein von hydrophilen oder lipophilen Oxydationsinhibitoren spektrometrisch beobachtet werden kann. Bei Anwendung dieser Methode hemmten bei einer Konzentration von 2,0 mmol eine Anzahl von Oxydationsinhibitoren beider Klassen stark die Bildung vonN-Nitrosarkosin in Gegenwart von 25 mmol Sarkosin and 25 mmol Nitrit.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archive for history of exact sciences 14 (1975), S. 297-383 
    ISSN: 1432-0657
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Natural Sciences in General
    Type of Medium: Electronic Resource
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