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  • 1
    Electronic Resource
    Electronic Resource
    FATE OF 14C-GIBBERELLIN A3 IN PLANT TISSUES (1967)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 144 (1967), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1967.tb34015.x
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  • 2
    Electronic Resource
    Electronic Resource
    Ethylene Biosynthesis and its Regulation in Higher Plants (1984)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology 35 (1984), S. 155-189 
    Details
    ISSN: 0066-4294
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pp.35.060184.001103
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of a novel multiple environmental factor-responsive 1-aminocyclopropane-1-carboxylate synthase gene, NT-ACS2, from tobacco (2000)
    Oxford, UK : Blackwell Science Ltd
    Plant, cell & environment 23 (2000), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Many abiotic environmental factors elicit the production of stress-ethylene in higher plants. To elucidate the molecular mechanisms underlying the regulation of stress-ethylene production and the physiological roles played by stress-ethylene in stress responses of plants, we studied the gene expression of ACC synthase in tobacco plants that had been subjected to environmental stresses. Four new tobacco ACC synthase cDNA fragments, NT-ACS2, NT-ACS3, NT-ACS4 and NT-ACS5, were identified and sequenced. It was found that NT-ACS2 could be induced by wounding, cold temperature and, especially, sunlight. NT-ACS4 was induced at a faster kinetics by wounding. The multiple environmental stress-responsive (MESR) NT-ACS2 gene was found to contain three introns and four exons and encode a polypeptide of 484 amino acids, 54·6 kDa and pI 6·87. Computer analysis of the 3·4 kb 5′ flanking region upstream of the ACS coding region revealed the existence of a group of putative cis-acting regulatory elements potentially conferring wounding, chilling, and UV light inducibility. Phylogenetic analysis of ACC synthase genes of different plant origins indicated that the chill-inducible NT-ACS2 gene is closely related to a chilling-inducible citrus ACS gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3040.2000.00618.x
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  • 4
    Electronic Resource
    Electronic Resource
    Chilling-induced ethylene production by beans and peas (1987)
    Springer
    Journal of plant growth regulation 6 (1987), S. 201-208 
    Details
    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effects of chilling on ethylene production by leaf discs and whole plants of bean (chilling-sensitive) and pea (chilling-tolerant) were studied. When pea or bean leaf discs were excised and incubated at 25°C, transient increases in ethylene production and 1-aminocyclopropane-1-carboxylic acid (ACC) accumulation were observed. Both pea and bean discs kept at 5°C evolved little ethylene, but levels of ACC increased in pea discs and not in bean discs. When discs of either species were chilled at 5°C immediately after excision and then transferred to 25°C 9 h later, increases in their ACC levels and ethylene production rates were observed. Discs were also incubated at 25°C for 12 h to allow excision-induced ethylene production to subside and then chilled at 5°C. Nine hours later, these discs were transferred to 25°C, and an increase in ethylene production was observed. These data indicate that chilling suppresses excision-induced ethylene production and enhances the production of ethylene after transfer to 25°C. Chilling of whole plants resulted in increased production of ethylene and ACC in the chilling-sensitive bean but not in the chilling-tolerant pea. Treatment of bean plants with the ethylene antagonists silver thiosulfate, norbornadiene, or aminooxyacetic acid, or of pea plants with ethylene, did not affect the appearance of chilling injury symptoms, indicating that ethylene does not induce injury symptoms and may not have an adaptive role in chilling stress.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02102548
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  • 5
    Electronic Resource
    Electronic Resource
    Ethylene-promoted malonylation of 1-aminocyclopropane-1-carboxylic acid participates in autoinhibition of ethylene synthesis in grapefruit flavedo discs (1985)
    Springer
    Planta 164 (1985), S. 565-568 
    Details
    ISSN: 1432-2048
    Keywords: 1-Aminocyclopropane-1-carboxylic acid ; Ethylene synthesis (autoinhibition) ; N-malonyltransferase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The increase in ethylene formation and in 1-aminocyclopropane-1-carboxylic acid (ACC) content in flavedo tissue of grapefruit (Citrus paradisi Macfad. cv. Ruby Red) in response to excision was markedly inhibited by exogenous ethylene. Ethylene treatment inhibited the synthesis of ACC, but increased the tissue's capability to malonylate ACC to N-malonyl-ACC, resulting in further reduction in the endogenous ACC content. The development of extractable ACC-malonyl-transferase activity in the tissue was markedly promoted by treatment with exogenous ethylene. These results indicate that the autoinhibition of ethylene production in this tissue results not only from suppression of ACC synthesis, but also from promotion of ACC malonylation; both processes reduce the availability of ACC for ethylene synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395976
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  • 6
    Electronic Resource
    Electronic Resource
    Changes in 1-aminocyclopropane-1-carboxylic-acid content of cut carnation flowers in relation to their senescence (1980)
    Springer
    Planta 150 (1980), S. 439-442 
    Details
    ISSN: 1432-2048
    Keywords: 1-Aminocyclopropane-1-carboxylic acid ; Dianthus-Ethylene synthesis ; Flower (senescence) ; Senescence (flowers)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The rise in ethylene production accompanying the respiration climacteric and senescence of cut carnation flowers (Dianthus caryophyllus L. cv. White Sim) was associated with a 30-fold increase in the concentration of 1-aminocyclopropane-1-carboxylic acid (ACC) in the petals (initial content 0.3 nmol/g fresh weight). Pretreatment of the flowers with silver thiosulfate (STS) retarded flower senescence and prevented the increase in ACC concentration in the petals. An increase in ACC in the remaining flower parts, which appeared to precede the increase in the petals, was only partially prevented by the STS pretreatment. Addition of aminoxyacetic acid (2 mM) to the solution in which the flowers were kept completely inhibited accumulation of ACC in all flower parts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00390183
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  • 7
    Electronic Resource
    Electronic Resource
    Synergistic effect of calcium and kinetin on ethylene production by the mungbean hypocotyl (1974)
    Springer
    Planta 118 (1974), S. 1-6 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A slight increase in ethylene production resulted from the application of either kinetin or Ca2+ to mungbean (Phaseolus mungo L.) hypocotyl segments, but a remarkable synergistic increase in C2H4 production was observed when they were applied together. The induction time was about 6 h as compared to 1 h for auxin-induced C2H4 production. A slight stimulation of C2H4 production was also observed when Ca2+ was applied with abscisic acid, but no synergistic effect of Ca2+ was observed with indole-3-acetic acid or GA3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00390497
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of antagonists of ethylene action on binding of ethylene in cut carnations (1986)
    Springer
    Plant growth regulation 4 (1986), S. 213-218 
    Details
    ISSN: 1573-5087
    Keywords: Dianthus ; ethylene ; 2,5-norbornadiene ; silver ; ethylene binding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Five hours after cut carnations had been treated with a pulse of 1 or 4 mM silver thiosulfate (STS), in vivo ethylene binding in petals was inhibited by 22 and 29%, respectively. When binding was measured 4 days after the 4-mM STS treatment, binding was inhibited by 81%. 2,5-Norbornadiene, which substantially delays carnation senescence, inhibited ethylene binding by 41% at a concentration of 1000 μl/l. The Kd for ethylene binding in carnations was estimated to be 0.1 μl/l in petals and 0.09 μl/l in leaves. The concentration of binding sites was estimated to be 6.0×10−9 mol/kg of petals and 2.0×10−9 mol/kg of leaves
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028164
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  • 9
    Electronic Resource
    Electronic Resource
    Ethylene and auxin-ethylene interaction in adventitious root formation in mung bean (Vigna radiata) cuttings (1989)
    Springer
    Journal of plant growth regulation 8 (1989), S. 131-141 
    Details
    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The role of ethylene in adventitious root formation and its involvement in auxin-induced rooting were investigated in cuttings ofVigna radiata (L.). Treatment with 30 μM indole-3-acetic acid (IAA) for 24 h slightly inhibited rooting, whereas the same concentration of indole-3-butyric acid (IBA) significantly stimulated it. Ethylene derived from 1-aminocyclopropane-1-carboxylic acid (ACC) increased the number of adventitious roots but inhibited their emergence and elongation. Endogenous levels of ethylene, ACC, and malonyl-ACC (MACC) were initially higher in cuttings treated with IAA. This trend was quickly reversed, and cuttings, particularly hypocotyls, treated with IBA produced higher levels of ethylene and had more ACC and MACC during most of the rooting process. Aminoethoxyvinylglycine significantly inhibited rooting, but its inhibitory effect could not be reversed by ACC. The data suggest that the stimulating effect of IBA on rooting is closely associated with its induction of ACC and ethylene biosynthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02025280
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  • 10
    Electronic Resource
    Electronic Resource
    Pathways of ethylene biosynthesis (1969)
    Springer
    Plant foods for human nutrition 19 (1969), S. 201-220 
    Details
    ISSN: 1573-9104
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Resume Il est montré que l'acide linolénique n'est pas transformé en propanal dans les tissus de pommes. Il est proposé un mecanisme de transformation de la methionine en éthylène par l'intermédiaire du méthional suivant un modèle constitué de flavine mononucléotide et de lumière. La nature de la formation enzymatique de l'éthylène à partir de l'acide α-céto-γ-méthylthiobutyrique ou du méthional par une Mn-sulfite-phénol-oxygène-peroxydase est décrite. Cependant, la conversion de la méthionine en éthylène a été établie dans les tissus végétaux. Les résultats présents ne confirment pas l'hypothèse suivant laquelle la méthionine est convertie en éthylène dans les tissus végétaux par l'intermédiaire de l'acide α-céto-γ-methylthiobutirique et du méthional. Le mécanisme détaillé de la transformation de la méthionine en éthylène reste inconnu.
    Abstract: Zusammenfassung Es wird gezeigt, dass der Linolensáure-Propanal-Weg im Apfelgewebe nicht aktiv ist. Ein Mechanismus für die Umwandlung von Methionin in Äthylen über Methional als Zwischenstufe läuft in einem Modellsystem unter Beteiligung von Flavinmononucleotid und Licht ab. Die enzymatische Bildung von Äthylen aus α-Keto-γ-methyl-thiobuttersäure oder Methional katalysiert ein Mn2+-So 3 2− -Phenol-O2 -Peroxydase-System. Trotz der nachgewiesenen Umwandlung von Methionin in Äthylen in pflanzlichem Gewebe fehlt der Nachweis, dass Methionin über α-Keto-γ-methylthiobuttersäure und Methional zu Äthylen umgesetzt wird. Die Einzelheiten des Bildungsweges von Äthylen aus Methionin harren noch der Aufklärung.
    Notes: Abstract Evidence is presented to show that the linolenic acid-propanal pathway is not operative in apple tissue. A mechanism for the conversion of methionine to ethylene through methional as an intermediate by a model system, consisting of flavin mononucleotide and light, is summarized. The nature of the enzymatic formation of ethylene from either α-keto-γ-methylthiobutyric acid or methional by a Mn-sulfite-phenol-oxygen-peroxidase system is described. Although the conversion of methionine to ethylene in plant tissue has been established, the data fail to support the hypothesis that methionine is converted to ethylene in plant tissues through α-keto-γ-methylthiobutyric acid and methional. Details of the pathway from methionine to ethylene remain to be elucidated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01101153
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