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: Drost, H.-G.
Autor Nach Häufigkeit alphabetisch sortiert: Carbonell, A.
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Plant Signal Behav
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: FEBS Letters
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Bot. Acta
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: ACS Chem Biol
Autor Nach Häufigkeit alphabetisch sortiert: Ullrich, W.R.
Autor Nach Häufigkeit alphabetisch sortiert: Feussner, K.
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Annu. Plant Rev.
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Eur. J. Biochem.
Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert: Nature
Alle Filter entfernen
Suchfilter
- Typ der Publikation
- Publikation (2)
- Erscheinungsjahr
- Journal / Buchreihe / Preprint-Server Nach Häufigkeit alphabetisch sortiert
- FEBS Lett. (3)
- Mol. Biol. Evol. (2)
- Nucleic Acids Res. (2)
- bioRxiv (2)
- 0 (1)
- BMC Genomics (1)
- Biology of Plant-Microbe Interactions (1)
- Bot. Acta (1)
- Nature (1)
- Phytochemistry (1)
- Plant Physiol. (1)
- Proc. Natl. Acad. Sci. U.S.A. (1)
- RNA Technologies (1)
- Virology (1)
- Viruses (1)
- Z. Naturforsch. C (1)
- Autor Nach Häufigkeit alphabetisch sortiert
- Wasternack, C. (5)
- Hause, B. (3)
- Feussner, I. (2)
- Parthier, B. (2)
- Bönn, M. (1)
- Calderon-Villalobos, L. I. A. (1)
- Drost, H.-G. (1)
- Estelle, M. (1)
- Feussner, K. (1)
- Fritz, I. G. (1)
- Gabel, A. (1)
- Graner, A. (1)
- Grosse, I. (1)
- Kühn, H. (1)
- Lee, J. (1)
- Lehmann, J. (1)
- Löbler, M. (1)
- Quint, M. (1)
- Robinson, C. V. (1)
- Sharon, M. (1)
- Tan, X. (1)
- Ullrich, K. K. (1)
- Ullrich, W. R. (1)
- Vörös, K. (1)
- Zheng, C. (1)
- Zheng, N. (1)
- zur Nieden, U. (1)
Zeige Ergebnisse 1 bis 2 von 2.
Quint, M.; Drost, H.-G.; Gabel, A.; Ullrich, K. K.; Bönn, M.; Grosse, I.; A transcriptomic hourglass in plant embryogenesis Nature 490, 98-101, (2012) DOI: 10.1038/nature11394
Animal and plant development starts with a constituting phase called embryogenesis, which evolved independently in both lineages1. Comparative anatomy of vertebrate development—based on the Meckel-Serrès law2 and von Baer’s laws of embryology3 from the early nineteenth century—shows that embryos from various taxa appear different in early stages, converge to a similar form during mid-embryogenesis, and again diverge in later stages. This morphogenetic series is known as the embryonic ‘hourglass’4,5, and its bottleneck of high conservation in mid-embryogenesis is referred to as the phylotypic stage6. Recent analyses in zebrafish and Drosophila embryos provided convincing molecular support for the hourglass model, because during the phylotypic stage the transcriptome was dominated by ancient genes7 and global gene expression profiles were reported to be most conserved8. Although extensively explored in animals, an embryonic hourglass has not been reported in plants, which represent the second major kingdom in the tree of life that evolved embryogenesis. Here we provide phylotranscriptomic evidence for a molecular embryonic hourglass in Arabidopsis thaliana, using two complementary approaches. This is particularly significant because the possible absence of an hourglass based on morphological features in plants suggests that morphological and molecular patterns might be uncoupled. Together with the reported developmental hourglass patterns in animals, these findings indicate convergent evolution of the molecular hourglass and a conserved logic of embryogenesis across kingdoms.
Hause, B.; Feussner, K.; Wasternack, C.; Nuclear Location of a Diadenosine 5′,5′”-P1,P4Tetraphosphate (Ap4A) Hydrolase in Tomato Cells Grown in Suspension Cultures Bot. Acta 110, 452-457, (1997) DOI: 10.1111/j.1438-8677.1997.tb00662.x
Diadenosine 5′,5′”‐P1,P4‐tetraphosphate (Ap4A) cleaving enzymes are assumed to regulate intracellular levels of Ap4A, a compound known to affect cell proliferation and stress responses. From plants an Ap4A hydrolase was recently purified using tomato cells grown in suspension. It was partially sequenced and a peptide antibody was prepared (Feussner et al., 1996). Using this polyclonal monospecific antibody, an abundant nuclear location of Ap4A hydrolase in 4‐day‐old cells of atomato cell suspension culture is demonstrated here by means of immunocytochemical techniques using FITC (fluorescein‐5‐isothiocyanate) labeled secondary antibodies. The microscopic analysis of the occurrence of Ap4A hydrolase performed for different stages of the cell cycle visualized by parallel DAPI (4,6‐diamidino‐2‐phenylindole) staining revealed that the protein accumulates within nuclei of cells in the interphase, but is absent in the nucleus as well as cytoplasm during all stages of mitosis. This first intracellular localization of an Ap4A degrading enzyme within the nucleus and its pattern of appearance during the cell cycle is discussed in relation to the suggested role of Ap4A in triggering DNA synthesis and cell proliferation.