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Publikationen - Molekulare Signalverarbeitung

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Publikation

Kogel, K.-H.; Ortel, B.; Jarosch, B.; Atzorn, R.; Schiffer, R.; Wasternack, C. Resistance in barley against the powdery mildew fungus (<EM>Erysiphe graminis</EM> f. sp. hordei) is not associated with enhanced levels of endogenous jasmonates Eur. J. Plant Pathol. 101, 319-332, (1995)

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Publikation

Lehmann, J.; Atzorn, R.; Brückner, C.; Reinbothe, S.; Leopold, J.; Wasternack, C.; Parthier, B. Accumulation of jasmonate, abscisic acid, specific transcripts and proteins in osmotically stressed barley leaf segments Planta 197, 156-162, (1995)

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Publikation

Wasternack, C.; Atzorn, R.; Leopold, J.; Feussner, I.; Rademacher, W.; Parthier, B. Synthesis of jasmonate-induced proteins in barley (<EM>Hordeum vulgare</EM>) is inhibited by the growth retardant tetcyclacis Physiol. Plantarum 94, 335-341, (1995)

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Publikation

Harms, K.; Atzorn, R.; Brash, A.; Kühn, H.; Wasternack, C.; Willmitzer, L.; Peña-Cortés, H. Expression of a flax allene oxide synthase cDNA leads to an increase in the endogenous jasmonic acid level in transgenic potato plants but not to a corresponding activation of jasmonic acid-responding genes The Plant Cell 7, 1645-1654, (1995)

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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.
Publikation

Herde, O.; Atzorn, R.; Fisahn, J.; Wasternack, C.; Willmitzer, L.; Peña-Cortés, H. Localized wounding by heat initiates the accumulation of proteinase inhibitor II in abscisic acid-deficient plants by triggering jasmonic acid biosynthesis Plant Physiol. 112, 853-860, (1996)

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Publikation

Peña-Cortés, H.; Prat, S.; Atzorn, R.; Wasternack, C.; Willmitzer, L. Pin2 gene expression in potato and tomato detached leaves from ABA-deficient potato and tomato plants upon systemin treatment Planta 198, 447-451, (1996)

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Publikation

Wasternack, C.; Atzorn, R.; Pena-Cortes, H.; Parthier, B. Alteration of gene expression by jasmonate and ABA in tobacco and tomato J. Plant Physiol. 147, 503-510, (1996)

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Publikation

Feussner, K.; Guranowski, A.; Kostka, S.; Wasternack, C. Diadenosine 5'5'''-P1,P4-tetraphosphate (Ap4A) hydrolase from tomato (<EM>Lycopersicon esculentum</EM> cv. Lukullus) - Purification, Biochemical properties and behaviour during stress Z. Naturforsch. 51c, 477-486, (1996)

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Publikation

O'Donnell, P.J.; Calvert, C.; Atzorn, R.; Wasternack, C.; Leyser, H.M.O.; Bowles, D.J. Ethylene as a signal mediating the wound response of tomato plants Science 274, 1914-1917, (1996)

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