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  • 1
    Electronic Resource
    Electronic Resource
    Growth and gibberellin relations of the extreme dwarf dx tomato mutant (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 73 (1988), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The extreme dwarf dx tomato (Lycopersicon esculentum Mill.) mutant has very short internodes which were found to contain shorter and fewer epidermal cells. The leaves are highly abnormal. The mutant showed a substantial stem growth response to GA3, without approaching normal stature or morphology. The active gibberellin GA1 and its precursors GA19 and GA20 were identified by coupled gas chromatography-mass spectrometry (GC/MS) in dx shoots. Quantitative GC/MS revealed that GA20 accumulated to far higher levels than normal in stems and leaves of the mutant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1988.tb00594.x
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The pro Gene Causes an Enhanced Cell Expansion Response to Fusicoccin in Tomato (1997)
    Springer
    Journal of plant growth regulation 16 (1997), S. 69-71 
    Details
    ISSN: 1435-8107
    Keywords: Key Words. Cell expansion—Fusicoccin—Mutant— Tomato
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The response to fusicoccin (FC) of the elongated tomato mutant procera was tested. Hypocotyl sections from etiolated procera seedlings responded to a range of FC concentrations similar to that of normal sections, but at a given FC concentration the mutant sections exhibited about 40% greater elongation than normal. The initial rates of elongation in FC were similar for normal and procera sections, but elongation continued at a high rate for a longer period in the mutant. Measurements of outer cortical cells demonstrated that the enhanced elongation of the procera hypocotyl sections was due to enhanced cell expansion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00006980
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cellular basis of the effects of gibberellin and the pro gene on stem growth in tomato (1988)
    Springer
    Planta 174 (1988), S. 106-111 
    Details
    ISSN: 1432-2048
    Keywords: Gibberellin (internode length, number) ; Internode (cell length, number) ; Lycopersicon (stem growth) ; Mutant (tomato)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Tomato (Lycopersicon esculentum Mill.) plants homozygous for the mutant pro gene, exhibiting the distinctive procera phenotype, appeared virtually identical to gibberellic acid (GA3)-treated isogenic normal plants. The pro gene and GA3 caused analogous increases in internode length, and in the length and number of cells in the outer cell layers of each internode. Internode number was also increased by pro and GA3 over the period of the experiment. Despite their greater length, the internodes of GA3-treated and pro plants reached their final size within a time period similar to that of internodes of untreated normal plants. The pro mutant itself was responsive to GA3, especially in the seedling stage, but the proportional increase in height seen in the later stages of growth was less than that of normal plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00394881
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  • 4
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    Cellular basis of the effects of gibberellin and the pro gene on stem growth in tomato (1988)
    Springer
    Details
    Publication Date: 1988-01-01
    Print ISSN: 0032-0935
    Electronic ISSN: 1432-2048
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 5
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    Antisense and sense expression of cDNA coding for CYP73A15, a class II cinnamate 4-hydroxylase, leads to a delayed and reduced production of lignin in tobacco (2001)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: A number of plant species contain the class II of genes encoding the cytochrome P450, CYP73, the cognate protein of which cinnamic acid 4-hydroxylase, is the second enzyme of the phenylpropanoid pathway. In order to begin to determine possible functionality, tobacco has been transformed with a truncated French bean class II cinnamate hydroxylase (CYP73A15) in the sense and antisense orientations. Signals for C4H protein could be detected in vascular tissue from wild-type plants using heterologous probes. The transformed plants showed a normal phenotype, even though detectable C4H protein was much reduced in tissue prints. Young propagated transformants displayed a range of reduced C4H activities, as well as either reduced or no phloroglucinol-stainable lignin. However, all mature tobacco plants showed the accumulation of lignin, even though its deposition was apparently delayed. This was not due to induction of tyrosine ammonia-lyase activity, which was not detected, but instead it is presumed due to sufficient C4H residual activity. Analysis of the lignin content of the plants showed reductions of up to 30% with a slightly reduced syringyl to guaiacyl ratio as compared to wild type. This reduction level was favourable in comparison with some other targets in the lignification pathway that have been manipulated including that of class I cinnamate 4-hydroxylase. It is proposed that the class II cinnamate 4-hydroxylase might also function in lignification in a number of species including French bean and tobacco, based on these data.
    Keywords: Life Sciences (General)
    Type: Phytochemistry (ISSN 0031-9422); Volume 57; 7; 1159-66
    Format: text
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