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  • 1
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    Coordinated polar localization of auxin efflux carrier PIN1 by GNOM ARF GEF (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: The plant hormone auxin is transported in a polar manner along the shoot-root axis, which requires efflux carriers such as PIN1. Asymmetric localization of PIN1 develops from a random distribution in Arabidopsis early embryogenesis. Coordinated polar localization of PIN1 is defective in gnom embryos. GNOM is a membrane-associated guanine-nucleotide exchange factor on ADP-ribosylation factor G protein (ARF GEF). Thus, GNOM-dependent vesicle trafficking may establish cell polarity, resulting in polar auxin transport.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steinmann, T -- Geldner, N -- Grebe, M -- Mangold, S -- Jackson, C L -- Paris, S -- Galweiler, L -- Palme, K -- Jurgens, G -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):316-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Entwicklungsgenetik, Zentrum fur Molekularbiologie der Pflanzen, Universitat Tubingen, Auf der Morgenstelle 1, D-72076 Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10514379" target="_blank"〉PubMed〈/a〉
    Keywords: ADP-Ribosylation Factors/*metabolism ; Arabidopsis/cytology/embryology/genetics/*metabolism ; *Arabidopsis Proteins ; Biological Transport ; Brefeldin A/pharmacology ; Cell Membrane/metabolism ; Cell Polarity ; Cytosol/metabolism ; Guanine Nucleotide Exchange Factors/chemistry/genetics/*metabolism ; Indoleacetic Acids/*metabolism ; Membrane Proteins/*metabolism ; *Membrane Transport Proteins ; Plant Roots/growth & development/metabolism ; Protein Conformation ; Recombinant Proteins/metabolism ; Seeds/cytology/metabolism ; Solubility ; Subcellular Fractions/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    MONOPTEROS controls embryonic root initiation by regulating a mobile transcription factor (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-03-12
    Description: Acquisition of cell identity in plants relies strongly on positional information, hence cell-cell communication and inductive signalling are instrumental for developmental patterning. During Arabidopsis embryogenesis, an extra-embryonic cell is specified to become the founder cell of the primary root meristem, hypophysis, in response to signals from adjacent embryonic cells. The auxin-dependent transcription factor MONOPTEROS (MP) drives hypophysis specification by promoting transport of the hormone auxin from the embryo to the hypophysis precursor. However, auxin accumulation is not sufficient for hypophysis specification, indicating that additional MP-dependent signals are required. Here we describe the microarray-based isolation of MP target genes that mediate signalling from embryo to hypophysis. Of three direct transcriptional target genes, TARGET OF MP 5 (TMO5) and TMO7 encode basic helix-loop-helix (bHLH) transcription factors that are expressed in the hypophysis-adjacent embryo cells, and are required and partially sufficient for MP-dependent root initiation. Importantly, the small TMO7 transcription factor moves from its site of synthesis in the embryo to the hypophysis precursor, thus representing a novel MP-dependent intercellular signal in embryonic root specification.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schlereth, Alexandra -- Moller, Barbara -- Liu, Weilin -- Kientz, Marika -- Flipse, Jacky -- Rademacher, Eike H -- Schmid, Markus -- Jurgens, Gerd -- Weijers, Dolf -- England -- Nature. 2010 Apr 8;464(7290):913-6. doi: 10.1038/nature08836. Epub 2010 Mar 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Entwicklungsgenetik, Zentrum fur Molekularbiologie der Pflanzen (ZMBP), Universitat Tubingen, Auf der Morgenstelle 3, 72076 Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20220754" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/cytology/*embryology/*metabolism ; Arabidopsis Proteins/*metabolism ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; DNA-Binding Proteins/*metabolism ; Embryonic Development/genetics ; *Gene Expression Regulation, Plant ; Genes, Plant/genetics ; Indoleacetic Acids/metabolism ; Meristem/cytology/embryology/metabolism ; Oligonucleotide Array Sequence Analysis ; Plant Roots/cytology/*embryology/*metabolism ; Signal Transduction ; Transcription Factors/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Co-option of a default secretory pathway for plant immune responses (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-02-15
    Description: Cell-autonomous immunity is widespread in plant-fungus interactions and terminates fungal pathogenesis either at the cell surface or after pathogen entry. Although post-invasive resistance responses typically coincide with a self-contained cell death of plant cells undergoing attack by parasites, these cells survive pre-invasive defence. Mutational analysis in Arabidopsis identified PEN1 syntaxin as one component of two pre-invasive resistance pathways against ascomycete powdery mildew fungi. Here we show that plasma-membrane-resident PEN1 promiscuously forms SDS-resistant soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) complexes together with the SNAP33 adaptor and a subset of vesicle-associated membrane proteins (VAMPs). PEN1-dependent disease resistance acts in vivo mainly through two functionally redundant VAMP72 subfamily members, VAMP721 and VAMP722. Unexpectedly, the same two VAMP proteins also operate redundantly in a default secretory pathway, suggesting dual functions in separate biological processes owing to evolutionary co-option of the default pathway for plant immunity. The disease resistance function of the secretory PEN1-SNAP33-VAMP721/722 complex and the pathogen-induced subcellular dynamics of its components are mechanistically reminiscent of immunological synapse formation in vertebrates, enabling execution of immune responses through focal secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kwon, Chian -- Neu, Christina -- Pajonk, Simone -- Yun, Hye Sup -- Lipka, Ulrike -- Humphry, Matt -- Bau, Stefan -- Straus, Marco -- Kwaaitaal, Mark -- Rampelt, Heike -- El Kasmi, Farid -- Jurgens, Gerd -- Parker, Jane -- Panstruga, Ralph -- Lipka, Volker -- Schulze-Lefert, Paul -- England -- Nature. 2008 Feb 14;451(7180):835-40. doi: 10.1038/nature06545.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Microbe Interactions, Max-Planck-Institut fur Zuchtungsforschung, Carl-von-Linne-Weg 10, D-50829 Koln, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18273019" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/genetics/metabolism ; Arabidopsis/genetics/*immunology/*microbiology ; Arabidopsis Proteins/genetics/*metabolism ; Ascomycota/physiology ; N-Glycosyl Hydrolases/genetics/metabolism ; Qa-SNARE Proteins/genetics/metabolism ; SNARE Proteins/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Two gap genes mediate maternal terminal pattern information in Drosophila (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-04-27
    Description: In Drosophila three maternal pattern organizing activities, the anterior, the posterior, and the terminal, establish the anterior-posterior body pattern of the embryo by initiating the spatially restricted activities of the gap class of zygotic segmentation genes. The activities of tailless (tll) and the newly identified gap gene huckebein (hkb) are specifically involved in mediating the maternal terminal information at the posterior end of the blastoderm embryo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weigel, D -- Jurgens, G -- Klingler, M -- Jackle, H -- New York, N.Y. -- Science. 1990 Apr 27;248(4954):495-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universitat Munchen, Institut fur Genetik und Mikrobiologie, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2158673" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastoderm/*physiology ; Cell Differentiation ; Drosophila/embryology/*genetics ; Female ; Gene Expression ; Genes/*physiology ; Genotype ; Mutation ; Phenotype ; Protein-Tyrosine Kinases/genetics ; Receptors, Cell Surface/genetics ; Suppression, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Genes to greens: embryonic pattern formation in plants (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jurgens, G -- New York, N.Y. -- Science. 1992 Apr 24;256(5056):487-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17787945" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Receptor-like kinase ACR4 restricts formative cell divisions in the Arabidopsis root (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-10-25
    Description: During the development of multicellular organisms, organogenesis and pattern formation depend on formative divisions to specify and maintain pools of stem cells. In higher plants, these activities are essential to shape the final root architecture because the functioning of root apical meristems and the de novo formation of lateral roots entirely rely on it. We used transcript profiling on sorted pericycle cells undergoing lateral root initiation to identify the receptor-like kinase ACR4 of Arabidopsis as a key factor both in promoting formative cell divisions in the pericycle and in constraining the number of these divisions once organogenesis has been started. In the root tip meristem, ACR4 shows a similar action by controlling cell proliferation activity in the columella cell lineage. Thus, ACR4 function reveals a common mechanism of formative cell division control in the main root tip meristem and during lateral root initiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Smet, Ive -- Vassileva, Valya -- De Rybel, Bert -- Levesque, Mitchell P -- Grunewald, Wim -- Van Damme, Daniel -- Van Noorden, Giel -- Naudts, Mirande -- Van Isterdael, Gert -- De Clercq, Rebecca -- Wang, Jean Y -- Meuli, Nicholas -- Vanneste, Steffen -- Friml, Jiri -- Hilson, Pierre -- Jurgens, Gerd -- Ingram, Gwyneth C -- Inze, Dirk -- Benfey, Philip N -- Beeckman, Tom -- New York, N.Y. -- Science. 2008 Oct 24;322(5901):594-7. doi: 10.1126/science.1160158.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Systems Biology, Flanders Institute for Biotechnology (VIB), B-9052 Ghent, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18948541" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*cytology/*enzymology/genetics/growth & development ; Arabidopsis Proteins/*genetics/*metabolism ; *Cell Division ; Cell Lineage ; Gene Expression Profiling ; Gene Expression Regulation, Plant ; Genes, Plant ; Meristem/*cytology/enzymology/growth & development ; Mutation ; Plant Roots/*cytology/enzymology/growth & development ; Protein-Serine-Threonine Kinases ; Receptors, Cell Surface/*genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Folding and allostery of a viral core protein [Biophysics and Computational Biology] (2013)
    National Academy of Sciences
    Details
    Publication Date: 2013-07-24
    Description: HBc, the capsid-forming “core protein” of human hepatitis B virus (HBV), is a multidomain, α-helical homodimer that aggressively forms human HBV capsids. Structural plasticity has been proposed to be important to the myriad functions HBc mediates during viral replication. Here, we report detailed thermodynamic analyses of the folding of the...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 8
    Electronic Resource
    Electronic Resource
    Embryonic Pattern Formation in Flowering Plants (1994)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Genetics 28 (1994), S. 351-371 
    Details
    ISSN: 0066-4197
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ge.28.120194.002031
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  • 9
    Electronic Resource
    Electronic Resource
    Drosophila headlines
    Amsterdam : Elsevier
    Trends in Genetics 7 (1991), S. 267-272 
    Details
    ISSN: 0168-9525
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9525(91)90163-K
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  • 10
    Electronic Resource
    Electronic Resource
    Drosophila headlines
    Amsterdam : Elsevier
    Trends in Genetics 7 (1991), S. 267-272 
    Details
    ISSN: 0168-9525
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0168-9525(91)90327-M
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