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  • Articles  (2)
  • Other Sources
  • photosynthesis
  • Springer  (2)
  • MDPI Publishing
  • 1995-1999  (2)
  • Chemistry and Pharmacology  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Auxiliary Photosynthetic Functions of Arabidopsis thaliana—Studies in vitro and in vivo (1999)
    Springer
    Bioscience reports 19 (1999), S. 499-509 
    Details
    ISSN: 1573-4935
    Keywords: Arabidopsis ; auxiliary enzymes ; light stress ; photosynthesis ; protein phosphorylation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract An improved cultivation system for Arabidopsis thaliana was developed, allowing advanced biochemical studies in vitro and in vivo of this important model plant. Highly functional Arabidopsis thylakoids were isolated and used to study both basic and regulatory photosynthetic functions with the aim to create a platform for the characterization of mutants deficient in auxiliary proteins. Light-induced proteolytic degradation of the D1 protein could be followed and shown to be a subsequent event to photoinactivation of electron transport. The phosphorylation and dephosphorylation of thylakoid proteins resembled that seen in spinach leaves although phospho-CP43 revealed an unusual regulatory behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020280710067
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanisms of Hydroquinone-Induced Growth Reduction in Leafy Spurge (1999)
    Springer
    Journal of chemical ecology 25 (1999), S. 1611-1621 
    Details
    ISSN: 1573-1561
    Keywords: Hydroquinone ; allelopathy ; plant water balance ; photosynthesis ; chlorophyll fluorescence ; 13C isotopes ; leafy spurge ; Euphorbia esula ; small everlasting ; Antennaria microphylla Rydb
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Field observations indicate leafy spurge (Euphorbia esula) is inhibited by the presence of Antennaria microphylla. Hydroquinone (HQ), one of several compounds isolated from A. microphylla has been shown to inhibit leafy spurge seed germination, root elongation, and callus culture growth. The present study was designed to analyze the effects of HQ on water relations and photosynthesis of leafy spurge. Plants grown in 0.25 mM HQ had consistently higher leaf diffusive resistance and lower transpiration rates than control plants (P 〈 0.05). Chlorophyll fluorescence was significantly lower than controls (P 〈 0.05) towards the end of the treatment period. At the end of the treatment, tissue from 0.25 mM HQ plants had higher levels of 13C, indicating there had been a sustained interference with stomatal function. These data suggest that a disruption of the plant water balance is one mechanism of leafy spurge inhibition by A. microphylla.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020892917434
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    Paper (German National Licenses)
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