Publikationen - Molekulare Signalverarbeitung
Aktive Filter
Autor Nach Häufigkeit alphabetisch sortiert: Monostori, T
Autor Nach Häufigkeit alphabetisch sortiert: Wasternack, C
Autor Nach Häufigkeit alphabetisch sortiert: Sharma, V.K
Autor Nach Häufigkeit alphabetisch sortiert: Maucher, H
Autor Nach Häufigkeit alphabetisch sortiert: Wasternack, C.
Autor Nach Häufigkeit alphabetisch sortiert: Drost, H.-G.
Autor Nach Häufigkeit alphabetisch sortiert: Carbonell, A.
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Virology
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Eur. J. Plant Pathol.
Alle Filter entfernen
Suchfilter
- Typ der Publikation
- Publikation (2)
- Erscheinungsjahr
- Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert
- 0 (16)
- Phytochemistry (14)
- Plant Physiol. (10)
- FEBS Lett. (9)
- Planta (8)
- J. Plant Physiol. (6)
- Plant Cell (6)
- Biol. Chem. (5)
- J. Biol. Chem. (5)
- J. Exp. Bot. (5)
- New Phytol. (5)
- Plant Cell Physiol. (5)
- Plant J. (5)
- Trends Plant Sci. (5)
- Ann. Bot. (3)
- Bot. Acta (3)
- Plant Mol. Biol. (3)
- Plant Signal Behav. (3)
- Annu. Rev. Plant Biol. (2)
- Biochem. Soc. Trans. (2)
- Biologie in unserer Zeit (2)
- Fett/Lipid (2)
- J. Plant Growth Regul. (2)
- Mol. Biol. Evol. (2)
- Nat. Plants (2)
- New Biotechnol. (2)
- Nucleic Acids Res. (2)
- Plant Biol. (2)
- Proc. Natl. Acad. Sci. U.S.A. (2)
- bioRxiv (2)
- ACS Chem. Biol. (1)
- Acta Biol. Szeged. (1)
- Acta Physiol. Plant. (1)
- Anal. Biochem. (1)
- Annu. Plant Rev. (1)
- BBA-Mol. Cell Biol. Lipids (1)
- BIOspektrum (1)
- BMC Genomics (1)
- Biochemistry (1)
- Biochimie (1)
- Biology of Plant-Microbe Interactions (1)
- Biotechnol. Adv. (1)
- Cereal Res. Commun. (1)
- ChemBioChem (1)
- ChemRxiv (1)
- Chromatographia (1)
- Curr. Opin. Plant Biol. (1)
- Eur. J. Biochem. (1)
- Eur. J. Plant Pathol. (1)
- Int. J. Mol. Sci. (1)
- J. Chromatogr. A (1)
- J. Integr. Plant Biol. (1)
- Jap. Soc. Chem. Regul Plants, Abstr. (1)
- Mol. Plant (1)
- Mol. Plant Microbe Interact. (1)
- Nat. Chem. Biol. (1)
- Nature (1)
- Nova Acta Leopoldina (1)
- PLOS ONE (1)
- Physiol. Plant. (1)
- Phytomedicine (1)
- Plant Cell Environ. (1)
- Plant Cell Rep. (1)
- Plant Growth Regul. (1)
- Plants (1)
- Prog. Nucleic Acid Res. Mol. Biol. (1)
- RNA Technologies (1)
- Science (1)
- Tetrahedron (1)
- Virology (1)
- Viruses (1)
- Z. Naturforsch. C (1)
- Autor Nach Häufigkeit alphabetisch sortiert
- Gago, S. (2)
- Atzorn, R. (1)
- Carbonell, A. (1)
- Flores, R. (1)
- Guerri, J. (1)
- Jarosch, B. (1)
- Kogel, K.-H. (1)
- Martínez de Alba, A.-E. (1)
- Moreno, P. (1)
- Navarro, L. (1)
- Ortel, B. (1)
- Renovell, ?. (1)
- Ruiz-Ruiz, S. (1)
- Schiffer, R. (1)
- Velázquez, K. (1)
- Vives, M. C. (1)
- Wasternack, C. (1)
Zeige Ergebnisse 1 bis 2 von 2.
Carbonell, A.; Martínez de Alba, A.-E.; Flores, R.; Gago, S.; Double-stranded RNA interferes in a sequence-specific manner with the infection of representative members of the two viroid families Virology 371, 44-53, (2008) DOI: 10.1016/j.virol.2007.09.031
Infection by viroids, non-protein-coding circular RNAs, occurs with the accumulation of 21–24 nt viroid-derived small RNAs (vd-sRNAs) with characteristic properties of small interfering RNAs (siRNAs) associated to RNA silencing. The vd-sRNAs most likely derive from dicer-like (DCL) enzymes acting on viroid-specific dsRNA, the key elicitor of RNA silencing, or on the highly structured genomic RNA. Previously, viral dsRNAs delivered mechanically or agroinoculated have been shown to interfere with virus infection in a sequence-specific manner. Here, we report similar results with members of the two families of nuclear- and chloroplast-replicating viroids. Moreover, homologous vd-sRNAs co-delivered mechanically also interfered with one of the viroids examined. The interference was sequence-specific, temperature-dependent and, in some cases, also dependent on the dose of the co-inoculated dsRNA or vd-sRNAs. The sequence-specific nature of these effects suggests the involvement of the RNA induced silencing complex (RISC), which provides sequence specificity to RNA silencing machinery. Therefore, viroid titer in natural infections might be regulated by the concerted action of DCL and RISC. Viroids could have evolved their secondary structure as a compromise between resistance to DCL and RISC, which act preferentially against RNAs with compact and relaxed secondary structures, respectively. In addition, compartmentation, association with proteins or active replication might also help viroids to elude their host RNA silencing machinery.
Kogel, K.-H.; Ortel, B.; Jarosch, B.; Atzorn, R.; Schiffer, R.; Wasternack, C.; Resistance in barley against the powdery mildew fungus (Erysiphe graminis f.sp.hordei) is not associated with enhanced levels of endogenous jasmonates Eur. J. Plant Pathol. 101, 319-332, (1995) DOI: 10.1007/BF01874788
Onset of acquired resistance of barley (Hordeum vulgare) chemically induced by 2,6-dichloroisonicotinic acid (DCINA) correlated with the accumulation of mRNA homologous to cDNA pHvJ256 which codes for a soluble leaf-thionin with a Mr. of 6 kDa [Wasternacket al., 1994a]. In the present work, we extend this finding by showing that the thionin transcript also accumulated following treatment of barley with the resistance-inducing compounds 3,5-dichlorosalicylic acid (DCSA), salicylic acid (SA), and an extract fromBacillus subtilis. The polypeptide showed antifungal activity against the biotrophic cereal pathogensErysiphe graminis f.sp.hordei andPuccinia graminis f.sp.tritici which may indicate a possible role in the mechanism of acquired resistance in barley. A thionin transcript hybridizing to pHvJ256 accumulated also in response to application of jasmonates, or treatments that elevated endogenous amounts of the plant growth substance, pointing to the possibility that signaling mediating defense responses in barley involves jasmonates. However, a topical spray application of jasmonic acid (JA) or jasmonate methyl ester (JM) did not protect barley leaves against infection byE. graminis. Performing a kinetic analysis by an enzyme immunoassay specific for (−)-JA, (−)-JM, and its amino acid conjugates, accumulation of jasmonates was detected in osmotically stressed barley but not at the onset of chemically induced or genetically based resistance governed by the powdery mildew resistance genesMlg, Mla 12, ormlo 5. Furthermore, the jasmonate-inducible proteins JIP-23 and JIP-60 were strongly induced following JM- but not DCINA-treatment or inoculation withE. graminis. Hence, in barley, no indications were found in favour for the previously proposed model of a lipid-based signaling pathway via jasmonates mediating expression of resistance in plants against pathogens.