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Pesquisa : A18.024.750 [Categoria DeCS]
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  1 / 2062 MEDLINE  
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[PMID]:28455401
[Au] Autor:Qin C; Li B; Fan Y; Zhang X; Yu Z; Ryabov E; Zhao M; Wang H; Shi N; Zhang P; Jackson S; Tör M; Cheng Q; Liu Y; Gallusci P; Hong Y
[Ad] Endereço:Research Centre for Plant RNA Signaling, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China (C.Q., B.L., Y.F., X.Z., Z.Y., E.R., M.Z., H.W., N.S., P.C., Y.H.).
[Ti] Título:Roles of Dicer-Like Proteins 2 and 4 in Intra- and Intercellular Antiviral Silencing.
[So] Source:Plant Physiol;174(2):1067-1081, 2017 Jun.
[Is] ISSN:1532-2548
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:RNA silencing is an innate antiviral mechanism conserved in organisms across kingdoms. Such a cellular defense involves DICER or DICER-LIKEs (DCLs) that process plant virus RNAs into viral small interfering RNAs (vsiRNAs). Plants encode four that play diverse roles in cell-autonomous intracellular virus-induced RNA silencing (known as VIGS) against viral invasion. VIGS can spread between cells. However, the genetic basis and involvement of vsiRNAs in non-cell-autonomous intercellular VIGS remains poorly understood. Using GFP as a reporter gene together with a suite of RNAi transgenic lines, here we show that despite the well-established activities of in intracellular VIGS and vsiRNA biogenesis, acts to inhibit intercellular VIGS whereas is required (likely along with DCL2-processed/dependent vsiRNAs and their precursor RNAs) for efficient intercellular VIGS trafficking from epidermal to adjacent cells. imposed an epistatic effect on to impede cell-to-cell spread of VIGS. Our results reveal previously unknown functions for and that may form a dual defensive frontline for intra- and intercellular silencing to double-protect cells from virus infection in .
[Mh] Termos MeSH primário: Carmovirus/metabolismo
Proteínas de Plantas/metabolismo
Interferência de RNA
Tabaco/genética
Tabaco/virologia
[Mh] Termos MeSH secundário: Proteínas de Fluorescência Verde/metabolismo
Epiderme Vegetal/citologia
Proteínas do Movimento Viral em Plantas/metabolismo
RNA Interferente Pequeno/metabolismo
Transgenes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Plant Viral Movement Proteins); 0 (RNA, Small Interfering); 147336-22-9 (Green Fluorescent Proteins)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE
[do] DOI:10.1104/pp.17.00475


  2 / 2062 MEDLINE  
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[PMID]:28754099
[Au] Autor:Albuquerque JGF; Assis VL; Almeida AJPO; Basílio IJLD; Luciano MN; Meireles BRLA; Cordeiro ÂMTM; Araújo IGA; Veras RC; Ribeiro TP; Medeiros IA
[Ad] Endereço:Universidade Federal da Paraíba, Instituto de Pesquisa em Fármacos e Medicamentos-IPeFarM - Campus I. Cidade Universitária, CEP 58051-970, João Pessoa, PB, Brazil.
[Ti] Título:Antioxidant and vasorelaxant activities induced by northeastern Brazilian fermented grape skins.
[So] Source:BMC Complement Altern Med;17(1):376, 2017 Jul 28.
[Is] ISSN:1472-6882
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: In northeastern Brazil, grape pomace has become a potential alternative byproduct because of the recover phenolic compounds from the vinification process. Comparative analyses were performed between lyophilized extract of grape skins from pomace, described as fermented (FGS), and fresh, unfermented (UGS) grape skins to show the relevant brand's composition upon the first maceration in winemaking. METHODS: The use of in vitro testing such as Folin-Ciocalteu's, DPPH free radical scavenger and HPLC methods were performed to evidence antioxidant effect and phenolic compounds. Additionally, vascular reactivity studies were performed in third-order branches of rat superior mesenteric arteries, which were obtained and placed in organ baths containing Krebs-Henseleit solution, maintained at 37 °C, gassed with a mixture of 95% O and 5% CO , and maintained at pH 7.4. The in situ formation of reactive oxygen species (ROS) was evaluated in small mesenteric rings using oxidative fluorescent dihydroethidium dye. RESULTS: We found higher phenolic content and antioxidant activity in FGS when compared to UGS. HPLC analyses identified a significant number of phenolic compounds with antioxidant potential in both samples. The vasorelaxant effect induced by FGS was more potent than that induced by UGS, and the activity was attenuated after removal of vascular endothelium or by blockade of endothelium-derived relaxing factors, such as NO and EDHF. CONCLUSIONS: The FGS extract may be a great source of natural polyphenol products with potent antioxidant effects and endothelium-dependent vasodilatory actions involving NO and EDHF pathways.
[Mh] Termos MeSH primário: Antioxidantes/farmacologia
Frutas/química
Fenóis/farmacologia
Epiderme Vegetal/química
Extratos Vegetais/farmacologia
Vasodilatadores/farmacologia
Vitis/química
[Mh] Termos MeSH secundário: Animais
Antioxidantes/análise
Artérias/efeitos dos fármacos
Artérias/fisiologia
Compostos de Bifenilo/metabolismo
Brasil
Cromatografia Líquida de Alta Pressão
Fermentação
Fenóis/análise
Picratos/metabolismo
Ratos
Espécies Reativas de Oxigênio/metabolismo
Vasodilatadores/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Biphenyl Compounds); 0 (Phenols); 0 (Picrates); 0 (Plant Extracts); 0 (Reactive Oxygen Species); 0 (Vasodilator Agents); DFD3H4VGDH (1,1-diphenyl-2-picrylhydrazyl)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170901
[Lr] Data última revisão:
170901
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170730
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-017-1881-2


  3 / 2062 MEDLINE  
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[PMID]:28676568
[Au] Autor:Tominaga-Wada R; Wada T
[Ad] Endereço:Graduate School of Biosphere Sciences, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan rtomi@hiroshima-u.ac.jp.
[Ti] Título:Extended C termini of CPC-LIKE MYB proteins confer functional diversity in epidermal cell differentiation.
[So] Source:Development;144(13):2375-2380, 2017 07 01.
[Is] ISSN:1477-9129
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The ( ) gene encodes a R3-type MYB transcription factor that promotes differentiation of root hair cells in Here, we have compared the functions of five -homologous genes for epidermal cell differentiation using promoter-driven transgenic plants. Our results show that TRIPTYCHON (TRY) and ENHANCER OF TRY AND CPC2 (ETC2) were less effective in root hair cell differentiation and were unstable in root epidermal cells when compared with CPC, ETC1 or CPC LIKE MYB3 (CPL3). The deletion of the extended C-terminal domain of TRY and ETC2 enhanced protein stability and conferred the ability to induce root hair cell differentiation on them. Treatment with MG132, a proteasome inhibitor, also led to the accumulation of TRY, indicating that TRY proteolysis is mediated by the proteasome-dependent pathway. Our results indicate that the CPC family includes relatively stable (CPC, ETC1 and CPL3) and unstable (TRY and ETC2) proteins that might be degraded by the proteasome. Our findings provide new insights into the regulatory mechanism of CPC family proteins that mediate root hair cell differentiation and should be useful in understanding epidermal development.
[Mh] Termos MeSH primário: Proteínas de Arabidopsis/química
Proteínas de Arabidopsis/metabolismo
Arabidopsis/citologia
Arabidopsis/metabolismo
Diferenciação Celular
Epiderme Vegetal/citologia
Epiderme Vegetal/metabolismo
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Proteínas de Fluorescência Verde/metabolismo
Immunoblotting
Fenótipo
Plantas Geneticamente Modificadas
Proteínas Recombinantes de Fusão/metabolismo
Relação Estrutura-Atividade
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Arabidopsis Proteins); 0 (Recombinant Fusion Proteins); 147336-22-9 (Green Fluorescent Proteins)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171126
[Lr] Data última revisão:
171126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170706
[St] Status:MEDLINE
[do] DOI:10.1242/dev.149542


  4 / 2062 MEDLINE  
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[PMID]:28658609
[Au] Autor:Vallarino JG; Yeats TH; Maximova E; Rose JK; Fernie AR; Osorio S
[Ad] Endereço:Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", University of Malaga- Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Department of Molecular Biology and Biochemistry, Campus de Teatinos, 29071, Málaga, Spain.
[Ti] Título:Postharvest changes in LIN5-down-regulated plants suggest a role for sugar deficiency in cuticle metabolism during ripening.
[So] Source:Phytochemistry;142:11-20, 2017 Oct.
[Is] ISSN:1873-3700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The cell wall invertase gene (LIN5) was reported to be a key enzyme influencing sugar uptake of tomato (Solanum lycopersicum) fruit. It was additionally revealed to be a key regulator of total soluble solids content in fruit as well as for reproductive development, being mainly involved in flower development, early fruit and seed development but also in ripening. Here, we demonstrate that silencing of the LIN5 gene promotes changes affecting fruit cuticle development which has a direct effect on postharvest properties. Transformants were characterized by reduced transpirational water loss in mature fruits accompanied by several other changes in the cuticle. Quantitative chemical composition, coupled with microscopy of isolated cuticle fruits revealed that the cuticle of the transformants were characterized by an increase of the thickness as well as significant increase in the content of cuticle components (cutin, phenolic compounds, and waxes). Furthermore, detailed analysis of the waxes revealed that the transformants displayed changes in waxes composition, showing higher levels of n-alkanes and triterpenoids which can shift the proportion of crystalline and amorphous waxes and change the water flux through the cuticle. Expression of the genes involved in cuticle biosynthesis indicated that LIN5 influences the biosynthesis of components of the cuticle, indicating that this process is coupled to sugar uploading via a mechanism which links carbon supply with the capacity for fruit expansion.
[Mh] Termos MeSH primário: Carboidratos/análise
Epiderme Vegetal/metabolismo
Proteínas de Plantas/metabolismo
beta-Frutofuranosidase/metabolismo
[Mh] Termos MeSH secundário: Parede Celular/metabolismo
Regulação para Baixo
Frutas/enzimologia
Frutas/genética
Frutas/metabolismo
Regulação da Expressão Gênica de Plantas
Lycopersicon esculentum/enzimologia
Lycopersicon esculentum/genética
Lycopersicon esculentum/metabolismo
Lipídeos de Membrana/metabolismo
Fenóis/metabolismo
Ceras/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbohydrates); 0 (Membrane Lipids); 0 (Phenols); 0 (Plant Proteins); 0 (Waxes); 54990-88-4 (cutin); EC 3.2.1.26 (beta-Fructofuranosidase)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170629
[St] Status:MEDLINE


  5 / 2062 MEDLINE  
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[PMID]:28644769
[Au] Autor:Tominaga-Wada R; Kurata T; Wada T
[Ad] Endereço:a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan.
[Ti] Título:Localization of the CAPRICE-ENHANCER OF TRY AND CPC1 chimera protein in Arabidopsis root epidermis.
[So] Source:Biosci Biotechnol Biochem;81(9):1762-1767, 2017 Sep.
[Is] ISSN:1347-6947
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The CAPRICE (CPC) encodes an R3-type MYB transcription factor, which promotes root-hair differentiation. Previously, we showed that the CPC protein moves from the non-hair cell to the neighboring cell and induces root-hair differentiation in Arabidopsis. In addition, we proposed two cell-to-cell movement signal sequences, S1 and S2, in CPC. However, an S1:2xGFP:S2 chimera protein did not move between root epidermal cells. Here, we show that the S1 and S2 sequences do not confer cell-to-cell movement or nuclear localization ability to a GFP protein. The ENHANCER OF TRY AND CPC1 (ETC1) gene encodes the CPC homolog R3 MYB; this protein does not possess cell-to-cell movement ability or the S1 sequence. To elucidate whether the S1 sequence can induce cell-to-cell movement ability in ETC1, CPCp:S1:ETC1:2xGFP was constructed and introduced into Arabidopsis. Our results indicate that the addition of the S1 sequence was not sufficient for ETC1 to acquire cell-to-cell movement ability.
[Mh] Termos MeSH primário: Proteínas de Arabidopsis/metabolismo
Arabidopsis/metabolismo
Proteínas de Ligação a DNA/metabolismo
Epiderme Vegetal/metabolismo
Raízes de Plantas/metabolismo
Proteínas Proto-Oncogênicas c-myb/metabolismo
Proteínas Recombinantes de Fusão/metabolismo
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Arabidopsis/citologia
Proteínas de Arabidopsis/química
Proteínas de Arabidopsis/genética
Núcleo Celular/metabolismo
Proteínas de Ligação a DNA/genética
Fenótipo
Transporte Proteico
Proteínas Proto-Oncogênicas c-myb/química
Proteínas Proto-Oncogênicas c-myb/genética
Proteínas Recombinantes de Fusão/genética
Tricomas/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arabidopsis Proteins); 0 (CPC protein, Arabidopsis); 0 (DNA-Binding Proteins); 0 (Enhancer of Try and CPC1, Arabidopsis); 0 (Proto-Oncogene Proteins c-myb); 0 (Recombinant Fusion Proteins)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170906
[Lr] Data última revisão:
170906
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170624
[St] Status:MEDLINE
[do] DOI:10.1080/09168451.2017.1343120


  6 / 2062 MEDLINE  
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[PMID]:28629324
[Au] Autor:Hasanuzzaman M; Davies NW; Shabala L; Zhou M; Brodribb TJ; Shabala S
[Ad] Endereço:School of Land and Food, University of Tasmania, Private Bag 54, Hobart, Tas, 7001, Australia.
[Ti] Título:Residual transpiration as a component of salinity stress tolerance mechanism: a case study for barley.
[So] Source:BMC Plant Biol;17(1):107, 2017 Jun 19.
[Is] ISSN:1471-2229
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: While most water loss from leaf surfaces occurs via stomata, part of this loss also occurs through the leaf cuticle, even when the stomata are fully closed. This component, termed residual transpiration, dominates during the night and also becomes critical under stress conditions such as drought or salinity. Reducing residual transpiration might therefore be a potentially useful mechanism for improving plant performance when water availability is reduced (e.g. under saline or drought stress conditions). One way of reducing residual transpiration may be via increased accumulation of waxes on the surface of leaf. Residual transpiration and wax constituents may vary with leaf age and position as well as between genotypes. This study used barley genotypes contrasting in salinity stress tolerance to evaluate the contribution of residual transpiration to the overall salt tolerance, and also investigated what role cuticular waxes play in this process. Leaves of three different positions (old, intermediate and young) were used. RESULTS: Our results show that residual transpiration was higher in old leaves than the young flag leaves, correlated negatively with the osmolality, and was positively associated with the osmotic and leaf water potentials. Salt tolerant varieties transpired more water than the sensitive variety under normal growth conditions. Cuticular waxes on barley leaves were dominated by primary alcohols (84.7-86.9%) and also included aldehydes (8.90-10.1%), n-alkanes (1.31-1.77%), benzoate esters (0.44-0.52%), phytol related compounds (0.22-0.53%), fatty acid methyl esters (0.14-0.33%), ß-diketones (0.07-0.23%) and alkylresorcinols (1.65-3.58%). A significant negative correlation was found between residual transpiration and total wax content, and residual transpiration correlated significantly with the amount of primary alcohols. CONCLUSIONS: Both leaf osmolality and the amount of total cuticular wax are involved in controlling cuticular water loss from barley leaves under well irrigated conditions. A significant and negative relationship between the amount of primary alcohols and a residual transpiration implies that some cuticular wax constituents act as a water barrier on plant leaf surface and thus contribute to salinity stress tolerance. It is suggested that residual transpiration could be a fundamental mechanism by which plants optimize water use efficiency under stress conditions.
[Mh] Termos MeSH primário: Hordeum/fisiologia
Transpiração Vegetal
Plantas Tolerantes a Sal/fisiologia
[Mh] Termos MeSH secundário: Hordeum/ultraestrutura
Concentração Osmolar
Epiderme Vegetal/fisiologia
Folhas de Planta/fisiologia
Folhas de Planta/ultraestrutura
Estresse Fisiológico
Água
Ceras
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Waxes); 059QF0KO0R (Water)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170621
[St] Status:MEDLINE
[do] DOI:10.1186/s12870-017-1054-y


  7 / 2062 MEDLINE  
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[PMID]:28399805
[Au] Autor:Roy R; Bassham DC
[Ad] Endereço:Department of Genetics, Development and Cell Biology, 1035B Roy J Carver Co-Lab, 1111 WOI Rd, Iowa State University, Ames, IA, 50011, USA.
[Ti] Título:TNO1, a TGN-localized SNARE-interacting protein, modulates root skewing in Arabidopsis thaliana.
[So] Source:BMC Plant Biol;17(1):73, 2017 Apr 11.
[Is] ISSN:1471-2229
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The movement of plant roots within the soil is key to their ability to interact with the environment and maximize anchorage and nutrient acquisition. Directional growth of roots occurs by a combination of sensing external cues, hormonal signaling and cytoskeletal changes in the root cells. Roots growing on slanted, impenetrable growth medium display a characteristic waving and skewing, and mutants with deviations in these phenotypes assist in identifying genes required for root movement. Our study identifies a role for a trans-Golgi network-localized protein in root skewing. RESULTS: We found that Arabidopsis thaliana TNO1 (TGN-localized SYP41-interacting protein), a putative tethering factor localized at the trans-Golgi network, affects root skewing. tno1 knockout mutants display enhanced root skewing and epidermal cell file rotation. Skewing of tno1 roots increases upon microtubule stabilization, but is insensitive to microtubule destabilization. Microtubule destabilization leads to severe defects in cell morphology in tno1 seedlings. Microtubule array orientation is unaffected in the mutant roots, suggesting that the increase in cell file rotation is independent of the orientation of microtubule arrays. CONCLUSIONS: We conclude that TNO1 modulates root skewing in a mechanism that is dependent on microtubules but is not linked to disruption of the orientation of microtubule arrays. In addition, TNO1 is required for maintenance of cell morphology in mature regions of roots and the base of hypocotyls. The TGN-localized SNARE machinery might therefore be important for appropriate epidermal cell file rotation and cell expansion during root growth.
[Mh] Termos MeSH primário: Proteínas de Arabidopsis/metabolismo
Arabidopsis/fisiologia
Raízes de Plantas/crescimento & desenvolvimento
Proteínas de Transporte Vesicular/metabolismo
[Mh] Termos MeSH secundário: Arabidopsis/citologia
Arabidopsis/efeitos dos fármacos
Proteínas de Arabidopsis/genética
Benzamidas/farmacologia
Microtúbulos/metabolismo
Mutação
Epiderme Vegetal/citologia
Epiderme Vegetal/genética
Raízes de Plantas/citologia
Raízes de Plantas/genética
Raízes de Plantas/metabolismo
Plantas Geneticamente Modificadas
Proteínas SNARE/genética
Proteínas SNARE/metabolismo
Proteínas de Transporte Vesicular/genética
Rede trans-Golgi/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arabidopsis Proteins); 0 (Benzamides); 0 (SNARE Proteins); 0 (TGN-localized SYP41-interacting protein, Arabidopsis); 0 (Vesicular Transport Proteins); 2EZ95375S0 (pronamide)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170413
[St] Status:MEDLINE
[do] DOI:10.1186/s12870-017-1024-4


  8 / 2062 MEDLINE  
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[PMID]:28348169
[Au] Autor:Coen O; Fiume E; Xu W; De Vos D; Lu J; Pechoux C; Lepiniec L; Magnani E
[Ad] Endereço:Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, University of Paris-Saclay, Route de St-Cyr (RD10), Versailles Cedex 78026, France.
[Ti] Título:Developmental patterning of the sub-epidermal integument cell layer in seeds.
[So] Source:Development;144(8):1490-1497, 2017 04 15.
[Is] ISSN:1477-9129
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Angiosperm seed development is a paradigm of tissue cross-talk. Proper seed formation requires spatial and temporal coordination of the fertilization products - embryo and endosperm - and the surrounding seed coat maternal tissue. In early seed development, all seed integuments were thought to respond homogenously to endosperm growth. Here, we show that the sub-epidermal integument cell layer has a unique developmental program. We characterized the cell patterning of the sub-epidermal integument cell layer, which initiates a previously uncharacterized extra cell layer, and identified TRANSPARENT TESTA 16 and SEEDSTICK MADS box transcription factors as master regulators of its polar development and cell architecture. Our data indicate that the differentiation of the sub-epidermal integument cell layer is insensitive to endosperm growth alone and to the repressive mechanism established by FERTILIZATION INDEPENDENT ENDOSPERM and MULTICOPY SUPPRESSOR OF IRA1 Polycomb group proteins. This work demonstrates the different responses of epidermal and sub-epidermal integument cell layers to fertilization.
[Mh] Termos MeSH primário: Arabidopsis/citologia
Arabidopsis/embriologia
Padronização Corporal
Desenvolvimento Vegetal
Epiderme Vegetal/citologia
Epiderme Vegetal/embriologia
Sementes/embriologia
[Mh] Termos MeSH secundário: Proteínas de Arabidopsis/metabolismo
Diferenciação Celular
Fertilização
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Arabidopsis Proteins)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171126
[Lr] Data última revisão:
171126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170329
[St] Status:MEDLINE
[do] DOI:10.1242/dev.146274


  9 / 2062 MEDLINE  
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[PMID]:28258370
[Au] Autor:Zhou Q; Li C; Mishina K; Zhao J; Zhang J; Duan R; Ma X; Wang A; Meng Q; Komatsuda T; Chen G
[Ad] Endereço:Laboratory of Plant Stress Ecophysiology and Biotechnology, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
[Ti] Título:Characterization and genetic mapping of the ß-diketone deficient eceriferum-b barley mutant.
[So] Source:Theor Appl Genet;130(6):1169-1178, 2017 Jun.
[Is] ISSN:1432-2242
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:KEY MESSAGE: The barley eceriferum-b.2 (cer-b.2) mutant produces glossy leaf sheaths and is deficient in the cuticular wax component 14,16-hentriacontanedione. The mutated gene maps to a 1.3-cM interval on chromosome 3HL flanked by the genes MLOC_10972 and MLOC_69561. The cuticular wax coating of leaves and stems in many grass species is responsible for the plants' glaucous appearance. A major component of the wax is a group of ß-diketone compounds. The barley eceriferum-b.2 (cer-b.2) mutant produces glossy leaf sheaths and is deficient for the compound 14,16-hentriacontanedione. A linkage analysis based on 708 gametes allowed the gene responsible for the mutant phenotype to be mapped to a 1.3-cM interval on chromosome 3HL flanked by the two genes MLOC_10972 and _69561. The product of the wild type allele may represent a step in the ß-diketone synthesis pathway.
[Mh] Termos MeSH primário: Hordeum/genética
Cetonas/química
Epiderme Vegetal/química
Folhas de Planta/química
Ceras/química
[Mh] Termos MeSH secundário: Alelos
Mapeamento Cromossômico
Ligação Genética
Hordeum/química
Mutação
Fenótipo
Polimorfismo de Nucleotídeo Único
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Ketones); 0 (Waxes)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170917
[Lr] Data última revisão:
170917
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170305
[St] Status:MEDLINE
[do] DOI:10.1007/s00122-017-2877-5


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[PMID]:28251380
[Au] Autor:Sofer L; Cabanillas DG; Gayral M; Téplier R; Pouzoulet J; Ducousso M; Dufin L; Bréhélin C; Ziegler-Graff V; Brault V; Revers F
[Ad] Endereço:BFP, INRA, University of Bordeaux, 33140, Villenave d'Ornon, France.
[Ti] Título:Identification of host factors potentially involved in RTM-mediated resistance during potyvirus long distance movement.
[So] Source:Arch Virol;162(7):1855-1865, 2017 Jul.
[Is] ISSN:1432-8798
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:The long distance movement of potyviruses is a poorly understood step of the viral cycle. Only factors inhibiting this process, referred to as "Restricted TEV Movement" (RTM), have been identified in Arabidopsis thaliana. On the virus side, the potyvirus coat protein (CP) displays determinants required for long-distance movement and for RTM-based resistance breaking. However, the potyvirus CP was previously shown not to interact with the RTM proteins. We undertook the identification of Arabidopsis factors which directly interact with either the RTM proteins or the CP of lettuce mosaic virus (LMV). An Arabidopsis cDNA library generated from companion cells was screened with LMV CP and RTM proteins using the yeast two-hybrid system. Fourteen interacting proteins were identified. Two of them were shown to interact with CP and the RTM proteins suggesting that a multiprotein complex could be formed between the RTM proteins and virions or viral ribonucleoprotein complexes. Co-localization experiments in Nicotiana benthamiana showed that most of the viral and cellular protein pairs co-localized at the periphery of chloroplasts which suggests a putative role for plastids in this process.
[Mh] Termos MeSH primário: Arabidopsis/virologia
Proteínas do Capsídeo/fisiologia
Proteínas de Plantas/metabolismo
Potyvirus/fisiologia
[Mh] Termos MeSH secundário: Regulação da Expressão Gênica de Plantas/fisiologia
Regulação Viral da Expressão Gênica/fisiologia
Microscopia Confocal
Floema/metabolismo
Floema/virologia
Doenças das Plantas/virologia
Epiderme Vegetal/citologia
Proteínas de Plantas/genética
Transporte Proteico
Tabaco/fisiologia
Tabaco/virologia
Técnicas do Sistema de Duplo-Híbrido
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Capsid Proteins); 0 (Plant Proteins)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170707
[Lr] Data última revisão:
170707
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170303
[St] Status:MEDLINE
[do] DOI:10.1007/s00705-017-3292-6



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