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Publikationen - Molekulare Signalverarbeitung

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Publikation

Wasternack, C. How Jasmonates Earned their Laurels: Past and Present Journal of Plant Growth Regulation 34 (4), 761-794, (2015) DOI: 10.1007/s00344-015-9526-5

The histories of research regarding all plant hormones are similar. Identification and structural elucidation have been followed by analyses of their biosynthesis, distributions, signaling cascades, roles in developmental or stress response programs, and crosstalk. Jasmonic acid (JA) and its derivatives comprise a group of plant hormones that were discovered recently, compared to auxin, abscisic acid, cytokinins, gibberellic acid, and ethylene. Nevertheless, there have been tremendous advances in JA research, following the general progression outlined above and parallel efforts focused on several other “new” plant hormones (brassinosteroids, salicylate, and strigolactones). This review focuses on historical aspects of the identification of jasmonates, and characterization of their biosynthesis, distribution, perception, signaling pathways, crosstalk with other hormones and roles in plant stress responses and development. The aim is to illustrate how our present knowledge on jasmonates was generated and how that influences current efforts to extend our knowledge.
Publikation

Ederli, L.; Morettini, R.; Borgogni, A.; Wasternack, C.; Miersch, O.; Reale, L.; Ferranti, F.; Tosit, N.; Pasqualini, S. Interaction between nitric oxide and ethylene in the induction of alternative oxidase in ozone-treated tobacco plants Plant Physiol. 142, 595-608, (2006) DOI: 10.1104/pp.106.085472

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Publikation

Mur, L.A.J.; Kenton, P.; Atzorn, R.; Miersch, O.; Wasternack, C. The outcomes of concentration specific interactions between salicylate and jasmonate signaling include synergy, antagonism and the activation of cell death Plant Physiol. 140, 249-262, (2006) DOI: 10.1104/pp.105.072348

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Publikation

O'Donnell, P.J.; Schmelz, E.; Block, A.; Miersch, O.; Wasternack, C.; Jones, J.B.; Klee, H.J. Multiple hormones cooperatively control a susceptible tomato pathogen defense response Plant Physiol. 133, 1181-1189, (2003)

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Publikation

Kramell, R.; Miersch, O.; Atzorn, R.; Parthier, B.; Wasternack, C. Octadecanoid-derived alteration of gene expression and the 'oxylipin signature' in stressed barley leaves - implications for different signalling pathways Plant Physiol. 123, 177-186, (2000)

Stress-induced gene expression in barley (Hordeum vulgare cv. Salome) leaves has been correlated with temporally changing levels of octadecanoids and jasmonates, quantified by means of gas chromatography/mass spectrometry-single ion monitoring. Application of sorbitol-induced stress led to a low and transient rise of jasmonic acid (JA), its precursor 12-oxophytodienoic acid (OPDA) and the methyl esters JAME and OPDAME, respectively, followed by a large increase in their levels. JA and JAME peaked between 12 and 16 h, about 4 hours before OPDA and OPDAME. However, OPDA accumulated up to a 2.5-fold higher level than the other compounds. Dihomo-jasmonic acid and 9,13-didehydro-12- oxophytoenoic acid were identified as minor components. Kinetic analyses revealed that a transient threshold of jasmonates or octadecanoids is necessary and sufficient to initiate JA responsive gene expression. Although OPDA and OPDAME applied exogenously were metabolized to JA in considerable amounts, both of them can induce gene expression per se as evidenced by those genes which do not respond to endogenously formed JA. Also, coronatine induces JA-responsive genes independently from endogenous JA. As evidenced by application of deuterated JA, endogenous synthesis of JA is not induced by JA treatment. The data are discussed in terms of distinct signalling pathways.
Publikation

Herde, O.; Peña-Cortés, H.; Wasternack, C.; Willmitzer, L.; Fisahn, J. Electric signaling and PIN2 gene expression on different abiotic stimuli depend on a distinct threshold level of endogenous ABA in several ABA-deficient tomato mutants Plant Physiol. 119, 213-218, (1999)

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Publikation

Ziegler, J.; Hamberg, M.; Miersch, O.; Parthier, B. Purification and characterization of allene oxide cyclase from dry corn seeds Plant Physiol. 114, 565-573, (1997)

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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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