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Publikationen - Molekulare Signalverarbeitung

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Publikation

Feussner, I.; Wasternack, C. Lipoxygenase catalyzed oxygenation of lipids Fett/Lipid 100, 146-152, (1998)

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Bücher und Buchkapitel

Balkenhohl, T.; Kühn, H.; Wasternack, C.; Feussner, I. A lipase specific for esterified oxygenated polyenoic fatty acids in lipid bodies of cucumber cotyledons (Sánchez, J., Cerdá-Olmedo, E., Martínez-Force, E.). Secretariado de Publicaciones de la Universidad de Sevilla 320-322, (1998)

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Publikation

Bohlmann, H.; Vignutelli, A.; Hilpert, B.; Miersch, O.; Wasternack, C.; Apel, K. Wounding and chemicals induce expression of the Arabidopsis gene Thi2.1, encoding a fungal defense thionin, via the octadecanoid pathway FEBS Letters 437, 281-286, (1998)

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Publikation

Vignutelli, A.; Wasternack, C.; Apel, K.; Bohlmann, H. Systemic and local induction of an Arabidopsis thionin gene by wounding and pathogens The Plant J. 14, 285-295, (1998)

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Bücher und Buchkapitel

Feussner, I.; Balkenhohl, T.; Porzel, A.; Kühn, H.; Wasternack, C. Structural elucidation of oxygenated triacylglycerols in cucumber and sunflower cotyledons (Schreier, P., Herderich, M., Humpf, H.-U., Schwab, W.). P. Vieweg, Wiesbaden 57-58, (1998)

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Bücher und Buchkapitel

Bachmann, A.; Kohlmann, M.; Wasternack, C.; Feussner, I. Oxylipins in sorbitol-stressed barley leaf segments (Sánchez, J., Cerdá-Olmedo, E., Martínez-Force, E.). Secretariado de Publicaciones de la Universidad de Sevilla 288-290, (1998)

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Bücher und Buchkapitel

Feussner, I.; Blée, E.; Weichert, H.; Rousset, C.; Wasternack, C. Fatty acid catabolism at the lipid body membrane of germinating cucumber cotyledons (Sánchez, J., Cerdá-Olmedo, E., Martínez-Force, E.). Secretariado de Publicaciones de la Universidad de Sevilla 311-313, (1998)

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Bücher und Buchkapitel

Kohlmann, M.; Kuntzsch, A.; Wasternack, C.; Feussner, I. Effect of jasmonic acid methyl ester on enzymes of the lipoxygenase pathway in barley leaves (Schreier, P., Herderich, M., Humpf, H.-U., Schwab, W.). P. Vieweg, Wiesbaden 339-340, (1998)

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Publikation

Vörös, K.; Feussner, I.; Kühn, H.; Lee, J.; Graner, A.; Löbler, M.; Parthier, B.; Wasternack, C. Characterization of methyljasmonate-inducible lipoxygenase from barley (<EM>Hordeum vulgare</EM> cv. Salome) leaves Eur. J. Biochem. 251, 36-44, (1998)

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Publikation

Feussner, I.; Hause, B.; Nellen, A.; Wasternack, C.; Kindl, H. Lipid-body lipoxygenase is expressed in cotyledons during germination prior to other lipoxygenase forms Planta 198, 288-293, (1996) DOI: 10.1007/BF00206255

Lipid bodies are degraded during germination. Whereas some proteins, e.g. oleosins, are synthesized during the formation of lipid bodies of maturating seeds, a new set of proteins, including a specific form of lipoxygenase (LOX; EC 1.13.11.12), is detectable in lipid bodies during the stage of fat degradation in seed germination. In cotyledons of cucumber (Cucumis sativus L.) seedlings at day 4 of germination, the most conspicuous staining with anti-LOX antibodies was observed in the cytosol. At very early stages of germination, however, the LOX form present in large amounts and synthesized preferentially was the lipid-body LOX. This was demonstrated by immunocytochemical staining of cotyledons from 1-h and 24-h-old seedlings: the immunodecoration of sections of 24-h-old seedlings with anti-LOX antiserum showed label exclusively correlated with lipid bodies of around 3 μm in diameter. In accordance, the profile of LOX protein isolated from lipid bodies during various stages of germination showed a maximum at day 1. By measuring biosynthesis of the protein in vivo we demonstrated that the highest rates of synthesis of lipid-body LOX occurred at day 1 of germination. The early and selective appearance of a LOX form associated with lipid bodies at this stage of development is discussed.
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