Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.822.871 [Categoria DeCS]
Referências encontradas : 191 [refinar]
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  1 / 191 MEDLINE  
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[PMID]:28771349
[Au] Autor:Satchivi NM; deBoer GJ; Bell JL
[Ad] Endereço:Dow AgroSciences LLC , 9330 Zionsville Road, Indianapolis, Indiana 46268, United States.
[Ti] Título:Understanding the Differential Response of Setaria viridis L. (green foxtail) and Setaria pumila Poir. (yellow foxtail) to Pyroxsulam.
[So] Source:J Agric Food Chem;65(34):7328-7336, 2017 Aug 30.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Green foxtail [Setaria viridis (L) Beauv.] and yellow foxtail [Setaria pumila (Poir.) Roem. & Schult.] are among the most abundant and troublesome annual grass weeds in cereal crops in the Northern Plains of the United States and the Prairie Provinces of Canada. Greenhouse and laboratory experiments were conducted to examine the differential responses of both weed species to foliar applications of the new triazolopyrimidine sulfonamide acetolactate synthase-inhibiting herbicide, pyroxsulam, and to determine the mechanism(s) of differential weed control. Foliar applications of pyroxsulam resulted in >90% control of yellow foxtail at rates between 7.5 and 15 g ai ha , whereas the same rates resulted in a reduced efficacy on green foxtail (≤81%). The absorption and translocation of [ C]pyroxsulam in green and yellow foxtail were similar and could not explain the differential whole-plant efficacy. Studies with [ C]pyroxsulam revealed a higher percentage of absorbed pyroxsulam was metabolized into an inactive metabolite in the treated leaf of green foxtail than in the treated leaf of yellow foxtail. Metabolism studies demonstrated that, 48 h after application, 50 and 35% of pyroxsulam in the treated leaf was converted to 5-hydroxy-pyroxsulam in green and yellow foxtail, respectively. The acetolactate synthase (ALS) inhibition assay showed that ALS extracted from green foxtail was more tolerant to pyroxsulam than the enzyme extracted from yellow foxtail was. The in vitro ALS assay showed IC values of 8.39 and 0.26 µM pyroxsulam for green and yellow foxtail, respectively. The ALS genes from both green and yellow foxtail were sequenced and revealed amino acid differences; however, the changes are not associated with known resistance-inducing mutations. The differential control of green and yellow foxtail following foliar applications of pyroxsulam was attributed to differences in both metabolism and ALS sensitivity.
[Mh] Termos MeSH primário: Herbicidas/farmacologia
Setaria (Planta)/efeitos dos fármacos
[Mh] Termos MeSH secundário: Acetolactato Sintase/antagonistas & inibidores
Acetolactato Sintase/genética
Acetolactato Sintase/metabolismo
Inibidores Enzimáticos/farmacologia
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/enzimologia
Folhas de Planta/genética
Proteínas de Plantas/antagonistas & inibidores
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Pirimidinas/farmacologia
Setaria (Planta)/enzimologia
Setaria (Planta)/genética
Sulfonamidas/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Enzyme Inhibitors); 0 (Herbicides); 0 (Plant Proteins); 0 (Pyrimidines); 0 (Sulfonamides); EC 2.2.1.6 (Acetolactate Synthase); K8CXK5Q32L (pyrimidine)
[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:170804
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b01453


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[PMID]:28644860
[Au] Autor:Feldman MJ; Paul RE; Banan D; Barrett JF; Sebastian J; Yee MC; Jiang H; Lipka AE; Brutnell TP; Dinneny JR; Leakey ADB; Baxter I
[Ad] Endereço:Donald Danforth Plant Science Center, St. Louis, Missouri, United States of America.
[Ti] Título:Time dependent genetic analysis links field and controlled environment phenotypes in the model C4 grass Setaria.
[So] Source:PLoS Genet;13(6):e1006841, 2017 Jun.
[Is] ISSN:1553-7404
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Vertical growth of plants is a dynamic process that is influenced by genetic and environmental factors and has a pronounced effect on overall plant architecture and biomass composition. We have performed six controlled growth trials of an interspecific Setaria italica x Setaria viridis recombinant inbred line population to assess how the genetic architecture of plant height is influenced by developmental queues, water availability and planting density. The non-destructive nature of plant height measurements has enabled us to monitor height throughout the plant life cycle in both field and controlled environments. We find that plant height is reduced under water limitation and high density planting and affected by growth environment (field vs. growth chamber). The results support a model where plant height is a heritable, polygenic trait and that the major genetic loci that influence plant height function independent of growth environment. The identity and contribution of loci that influence height changes dynamically throughout development and the reduction of growth observed in water limited environments is a consequence of delayed progression through the genetic program which establishes plant height in Setaria. In this population, alleles inherited from the weedy S. viridis parent act to increase plant height early, whereas a larger number of small effect alleles inherited from the domesticated S. italica parent collectively act to increase plant height later in development.
[Mh] Termos MeSH primário: Ambiente Controlado
Locos de Características Quantitativas/genética
Setaria (Planta)/genética
[Mh] Termos MeSH secundário: Alelos
Biomassa
Mapeamento Cromossômico
Genoma de Planta
Genótipo
Herança Multifatorial/genética
Fenótipo
Setaria (Planta)/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170726
[Lr] Data última revisão:
170726
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170624
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pgen.1006841


  3 / 191 MEDLINE  
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[PMID]:28644843
[Au] Autor:Wang J; Wang Z; Du X; Yang H; Han F; Han Y; Yuan F; Zhang L; Peng S; Guo E
[Ad] Endereço:Millet Research Institute, Shanxi Academy of Agricultural Sciences, Changzhi, Shanxi, China.
[Ti] Título:A high-density genetic map and QTL analysis of agronomic traits in foxtail millet [Setaria italica (L.) P. Beauv.] using RAD-seq.
[So] Source:PLoS One;12(6):e0179717, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Foxtail millet (Setaria italica), a very important grain crop in China, has become a new model plant for cereal crops and biofuel grasses. Although its reference genome sequence was released recently, quantitative trait loci (QTLs) controlling complex agronomic traits remains limited. The development of massively parallel genotyping methods and next-generation sequencing technologies provides an excellent opportunity for developing single-nucleotide polymorphisms (SNPs) for linkage map construction and QTL analysis of complex quantitative traits. In this study, a high-throughput and cost-effective RAD-seq approach was employed to generate a high-density genetic map for foxtail millet. A total of 2,668,587 SNP loci were detected according to the reference genome sequence; meanwhile, 9,968 SNP markers were used to genotype 124 F2 progenies derived from the cross between Hongmiaozhangu and Changnong35; a high-density genetic map spanning 1648.8 cM, with an average distance of 0.17 cM between adjacent markers was constructed; 11 major QTLs for eight agronomic traits were identified; five co-dominant DNA markers were developed. These findings will be of value for the identification of candidate genes and marker-assisted selection in foxtail millet.
[Mh] Termos MeSH primário: Mapeamento Cromossômico/métodos
Sequenciamento de Nucleotídeos em Larga Escala
Locos de Características Quantitativas
Setaria (Planta)/genética
[Mh] Termos MeSH secundário: Cromossomos de Plantas
Análise Custo-Benefício
Marcadores Genéticos
Fenótipo
Polimorfismo de Nucleotídeo Único
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Genetic Markers)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171002
[Lr] Data última revisão:
171002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170624
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0179717


  4 / 191 MEDLINE  
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[PMID]:28488181
[Au] Autor:Brown D; Ng'ambi JW
[Ad] Endereço:Department of Agricultural Economics and Animal Production, Faculty of Science and Agriculture, University of Limpopo, Private Bag X1106, Sovenga, South Africa. db4010396@gmail.com.
[Ti] Título:Effect of polyethylene glycol 4000 supplementation on the performance of yearling male Pedi goats fed dietary mixture levels of Acacia karroo leaf meal and Setaria verticillata grass hay.
[So] Source:Trop Anim Health Prod;49(5):1051-1057, 2017 Jun.
[Is] ISSN:1573-7438
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Eighteen yearling male Pedi goats weighing 21.7 ± 3.1 kg were used in a 42-day trial in a 2 (Acacia karroo leaf meal levels) × 3 (levels of PEG 4000) factorial arrangement in a completely randomized design to determine PEG 4000 supplementation levels for optimal productivity of indigenous Pedi goats fed different mixture levels of A. karroo leaf meal and Setaria verticillata (L.) P.Beauv. grass hay. Each goat was supplemented with 0, 23 or 30 g of PEG 4000 per day in addition to dietary mixture of A. karroo and S. verticillata hay. Polyethylene glycol 4000 supplementation had no effect (P > 0.05) on nutrient intake of goats. However, a diet × PEG (P < 0.05) was observed for intake of all nutrients studied. Dry matter, OM, NDF and ADF intakes per goat were optimized at PEG 4000 supplementation levels of 19.62, 19.62, 19.61 and 19.53 g/goat/day, respectively, for diets containing 20% A. karroo leaf meal. Polyethylene glycol 4000 supplementation had no effect (P > 0.05) on the apparent digestibility of all nutrients. The dietary inclusion level of A. karroo leaf meal at 20% improved (P < 0.05) DM, OM, CP, NDF and ADF digestibility of goats. Crude protein digestibility was optimized at a PEG 4000 supplementation level of 15.78 g/goat/day. Dietary mixture level and PEG 4000 supplementation had no effect (P > 0.05) on final weights of Pedi goats. Similar results were observed for blood urea and glucose concentrations of yearling male Pedi goats. However, daily body weight gain was higher (P < 0.05) in goats fed 50% A. karroo leaf meal than those on 20% inclusion level. Polyethylene glycol 4000 has potential to improve the feeding value of tanninifeorus A. karroo leaf meal.
[Mh] Termos MeSH primário: Fenômenos Fisiológicos da Nutrição Animal/efeitos dos fármacos
Cabras/fisiologia
Polietilenoglicóis/administração & dosagem
[Mh] Termos MeSH secundário: Acacia/química
Ração Animal/análise
Animais
Dieta/veterinária
Suplementos Nutricionais/análise
Digestão/efeitos dos fármacos
Relação Dose-Resposta a Droga
Ingestão de Energia/efeitos dos fármacos
Masculino
Distribuição Aleatória
Setaria (Planta)/química
Ganho de Peso/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
30IQX730WE (Polyethylene Glycols); 4R4HFI6D95 (polyethylene glycol 4000)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171102
[Lr] Data última revisão:
171102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170511
[St] Status:MEDLINE
[do] DOI:10.1007/s11250-017-1305-9


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[PMID]:28487273
[Au] Autor:Wang YF; Li Z; Pan JW; Li YX; Wang QG; Guan Y; Liu W
[Ad] Endereço:College of Life Science, Qingdao Agricultural University, Qingdao 266000, China; Biotechnology Research Center, Shandong Academy of Agricultural Sciences /Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Ji'nan 250100, China.
[Ti] Título:Cloning and functional analysis of the SiRLK35 gene in Setaria italic L.
[So] Source:Yi Chuan;39(5):413-422, 2017 05 20.
[Is] ISSN:0253-9772
[Cp] País de publicação:China
[La] Idioma:eng
[Ab] Resumo:Receptor like protein kinases (RLKs) play vital roles in both plant development and stress conditions. Using drought-treated "Yugu 1" as materials, a drought-responsive RLK gene, SiRLK35, was isolated through iTRAQ analysis. In this study, the further analyses of the gene functions were carried out. First, full-length SiRLK35 was amplified by PCR using the cDNA of foxtail millet seedlings as a template. The expression patterns of SiRLK35 under NaCl, PEG, ABA, GA and MeJA treatment were analyzed by quantitative real-time PCR (qRT-PCR), and we found that the expression of SiRLK35 could be induced under different treatments, especially under NaCl treatment. Second, the prokaryotic expression plasmid of SiRLK35 was constructed, and the salt resistance of SiRLK35 was detected by the bacterial plaque growth method. And we uncovered that the growth and tolerance of SiRLK35-containing Escherichia coli strains were in better conditions than control under the NaCl stress. Lastly, pCambia1301P-SiRLK35 was constructed and transformed into rice to obtain transgenic plants. The tolerance of transgenic rice plants to salt stress was higher than that of controls through physiological analysis. We propose that SiRLK35 may participate in salt and stress resistance processes, which could provide potential theoretical foundation for the stress resistance varieties cultivation and breeding of foxtail millet.
[Mh] Termos MeSH primário: Proteínas de Plantas/genética
Setaria (Planta)/genética
[Mh] Termos MeSH secundário: Clonagem Molecular/métodos
Regulação da Expressão Gênica de Plantas/genética
Plantas Geneticamente Modificadas/genética
Plântulas/genética
Cloreto de Sódio/metabolismo
Estresse Fisiológico/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 451W47IQ8X (Sodium Chloride)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170511
[St] Status:MEDLINE
[do] DOI:10.16288/j.yczz.17-027


  6 / 191 MEDLINE  
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[PMID]:28485206
[Au] Autor:Ishihara A; Kumeda R; Hayashi N; Yagi Y; Sakaguchi N; Kokubo Y; Ube N; Tebayashi SI; Ueno K
[Ad] Endereço:a Faculty of Agriculture , Tottori University , Tottori , Japan.
[Ti] Título:Induced accumulation of tyramine, serotonin, and related amines in response to Bipolaris sorokiniana infection in barley.
[So] Source:Biosci Biotechnol Biochem;81(6):1090-1098, 2017 Jun.
[Is] ISSN:1347-6947
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The inducible metabolites were analyzed in barley leaves inoculated with Bipolaris sorokiniana, the causal agent of spot blotch of barley. HPLC analysis revealed that B. sorokiniana-infected leaves accumulated 4 hydrophilic compounds. They were purified by ODS column chromatography and preparative HPLC. Spectroscopic analyses revealed that they were tyramine (1), 3-(2-aminoethyl)-3-hydroxyindolin-2-one (2), serotonin (3), and 5,5'-dihydroxy-2,4'-bitryptamine (4). Among these, 2 and 4 have not been reported as natural products. They showed antifungal activity in an assay of inhibition of B. sorokiniana conidia germination, suggesting that they play a role in the chemical defense of barley as phytoalexins. The accumulation of 1-4 was examined also in the leaves of rice and foxtail millet. Rice leaves accumulated 2, 3, and 4, whereas foxtail millet leaves accumulated 3 and 4 in response to pathogen attack, suggesting the generality of accumulation of 3 and 4 in the Poaceae species.
[Mh] Termos MeSH primário: Antifúngicos/imunologia
Hordeum/imunologia
Doenças das Plantas/imunologia
Saccharomycetales/efeitos dos fármacos
Sesquiterpenos/imunologia
Esporos Fúngicos/efeitos dos fármacos
[Mh] Termos MeSH secundário: Antifúngicos/metabolismo
Antifúngicos/farmacologia
Cromatografia Líquida de Alta Pressão
Hordeum/metabolismo
Hordeum/microbiologia
Interações Hidrofóbicas e Hidrofílicas
Indóis/imunologia
Indóis/metabolismo
Indóis/farmacologia
Oryza/imunologia
Oryza/metabolismo
Oryza/microbiologia
Doenças das Plantas/microbiologia
Imunidade Vegetal
Folhas de Planta/imunologia
Folhas de Planta/metabolismo
Folhas de Planta/microbiologia
Saccharomycetales/patogenicidade
Saccharomycetales/fisiologia
Serotonina/biossíntese
Serotonina/imunologia
Serotonina/farmacologia
Sesquiterpenos/metabolismo
Sesquiterpenos/farmacologia
Setaria (Planta)/imunologia
Setaria (Planta)/metabolismo
Setaria (Planta)/microbiologia
Especificidade da Espécie
Esporos Fúngicos/patogenicidade
Esporos Fúngicos/fisiologia
Triptaminas/biossíntese
Triptaminas/imunologia
Triptaminas/farmacologia
Tiramina/biossíntese
Tiramina/imunologia
Tiramina/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antifungal Agents); 0 (Indoles); 0 (Sesquiterpenes); 0 (Tryptamines); 333DO1RDJY (Serotonin); 37297-20-4 (phytoalexins); X8ZC7V0OX3 (Tyramine)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170703
[Lr] Data última revisão:
170703
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170510
[St] Status:MEDLINE
[do] DOI:10.1080/09168451.2017.1290520


  7 / 191 MEDLINE  
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[PMID]:28369461
[Au] Autor:Ni X; Xia Q; Zhang H; Cheng S; Li H; Fan G; Guo T; Huang P; Xiang H; Chen Q; Li N; Zou H; Cai X; Lei X; Wang X; Zhou C; Zhao Z; Zhang G; Du G; Cai W; Quan Z
[Ad] Endereço:BGI-Shenzhen, Shenzhen 518083, China.
[Ti] Título:Updated foxtail millet genome assembly and gene mapping of nine key agronomic traits by resequencing a RIL population.
[So] Source:Gigascience;6(2):1-8, 2017 Feb 01.
[Is] ISSN:2047-217X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Foxtail millet (Setaria italica) provides food and fodder in semi-arid regions and infertile land. Resequencing of 184 foxtail millet recombinant inbred lines (RILs) was carried out to aid essential research on foxtail millet improvement. A total 483 414 single nucleotide polymorphisms were determined. Bin maps were constructed based on the RILs' recombination data. Based on the high-density bin map, we updated Zhanggu reference with 416 Mb after adding 16 Mb unanchored scaffolds and Yugu reference with some assembly error correction and 3158 gaps filled. Quantitative trait loci (QTL) mapping of nine agronomic traits was done based on this RIL population, five of which were controlled by a single gene. Meanwhile, two QTLs were found for plant height, and a candidate gene showed 89% identity to the known rice gibberellin-synthesis gene sd1. Three QTLs were found for the trait of heading date. The whole genome resequencing and QTL mapping provided important tools for foxtail millet research and breeding. Resequencing of the RILs could also provide an effective way for high-quality genome assembly and gene identification.
[Mh] Termos MeSH primário: Mapeamento Cromossômico
Genoma de Planta
Genômica/métodos
Endogamia
Característica Quantitativa Herdável
Recombinação Genética
Setaria (Planta)/genética
[Mh] Termos MeSH secundário: Pontos de Quebra do Cromossomo
Cromossomos de Plantas
Marcadores Genéticos
Sequenciamento de Nucleotídeos em Larga Escala
Polimorfismo de Nucleotídeo Único
Locos de Características Quantitativas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Genetic Markers)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170714
[Lr] Data última revisão:
170714
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170404
[St] Status:MEDLINE
[do] DOI:10.1093/gigascience/giw005


  8 / 191 MEDLINE  
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[PMID]:27964785
[Au] Autor:Liu K; Qi S; Li D; Jin C; Gao C; Duan S; Feng B; Chen M
[Ad] Endereço:College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China.
[Ti] Título:TRANSPARENT TESTA GLABRA 1 ubiquitously regulates plant growth and development from Arabidopsis to foxtail millet (Setaria italica).
[So] Source:Plant Sci;254:60-69, 2017 Jan.
[Is] ISSN:1873-2259
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:TRANSPARENT TESTA GLABRA 1 of Arabidopsis thaliana (AtTTG1) is a WD40 repeat transcription factor that plays multiple roles in plant growth and development, particularly in seed metabolite production. In the present study, to determine whether SiTTG1 of the phylogenetically distant monocot foxtail millet (Setaria italica) has similar functions, we used transgenic Arabidopsis and Nicotiana systems to explore its activities. We found that SiTTG1 functions as a transcription factor. Overexpression of the SiTTG1 gene rescued many of the mutant phenotypes in Arabidopsis ttg1-13 plants. Additionally, SiTTG1 overexpression fully corrected the reduced expression of mucilage biosynthetic genes, and the induced expression of genes involved in accumulation of seed fatty acids and storage proteins in developing seeds of ttg1-13 plants. Ectopic expression of SiTTG1 restored the sensitivity of the ttg1-13 mutant to salinity and high glucose stresses during germination and seedling establishment, and restored altered expression levels of some stress-responsive genes in ttg1-13 seedlings to the wild type level under salinity and glucose stresses. Our results provide information that will be valuable for understanding the function of TTG1 from monocot to dicot species and identifying a promising target for genetic manipulation of foxtail millet to improve the amount of seed metabolites.
[Mh] Termos MeSH primário: Proteínas de Arabidopsis/fisiologia
Arabidopsis/genética
Desenvolvimento Vegetal/genética
Setaria (Planta)/genética
Fatores de Transcrição/fisiologia
[Mh] Termos MeSH secundário: Arabidopsis/crescimento & desenvolvimento
Proteínas de Arabidopsis/genética
Proteínas de Arabidopsis/metabolismo
Clonagem Molecular
Ácidos Graxos/metabolismo
Filogenia
Plantas Geneticamente Modificadas/crescimento & desenvolvimento
Sementes/metabolismo
Alinhamento de Sequência
Análise de Sequência de Proteína
Setaria (Planta)/crescimento & desenvolvimento
Estresse Fisiológico
Tabaco/genética
Fatores de Transcrição/genética
Fatores de Transcrição/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arabidopsis Proteins); 0 (Fatty Acids); 0 (TTG1 protein, Arabidopsis); 0 (Transcription Factors)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170316
[Lr] Data última revisão:
170316
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161215
[St] Status:MEDLINE


  9 / 191 MEDLINE  
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[PMID]:27896463
[Au] Autor:Li H; Wei Z; Huangfu C; Chen X; Yang D
[Ad] Endereço:Agro-Environmental Protection Institute, Ministry of Agriculture, 31 Fukang Road, Nankai District, Tianjin, 300191, China.
[Ti] Título:Litter mixture dominated by leaf litter of the invasive species, Flaveria bidentis, accelerates decomposition and favors nitrogen release.
[So] Source:J Plant Res;130(1):167-180, 2017 Jan.
[Is] ISSN:1618-0860
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:In natural ecosystems, invasive plant litter is often mixed with that of native species, yet few studies have examined the decomposition dynamics of such mixtures, especially across different degrees of invasion. We conducted a 1-year litterbag experiment using leaf litters from the invasive species Flaveria bidentis (L.) and the dominant co-occurring native species, Setaria viridis (L.). Litters were allowed to decompose either separately or together at different ratios in a mothproof screen house. The mass loss of all litter mixtures was non-additive, and the direction and strength of effects varied with species ratio and decomposition stage. During the initial stages of decomposition, all mixtures had a neutral effect on the mass loss; however, at later stages of decomposition, mixtures containing more invasive litter had synergistic effects on mass loss. Importantly, an increase in F. bidentis litter with a lower C:N ratio in mixtures led to greater net release of N over time. These results highlight the importance of trait dissimilarity in determining the decomposition rates of litter mixtures and suggest that F. bidentis could further synchronize N release from litter as an invasion proceeds, potentially creating a positive feedback linked through invasion as the invader outcompetes the natives for nutrients. Our findings also demonstrate the importance of species composition as well as the identity of dominant species when considering how changes in plant community structure influence plant invasion.
[Mh] Termos MeSH primário: Flaveria/química
Nitrogênio/metabolismo
Folhas de Planta/química
[Mh] Termos MeSH secundário: Animais
Biomassa
Carbono/metabolismo
Ciclo do Carbono
Ecossistema
Espécies Introduzidas
Ciclo do Nitrogênio
Setaria (Planta)/química
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
7440-44-0 (Carbon); N762921K75 (Nitrogen)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171014
[Lr] Data última revisão:
171014
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161130
[St] Status:MEDLINE
[do] DOI:10.1007/s10265-016-0881-5


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[PMID]:27894970
[Au] Autor:Zhang L; Liu B; Zheng G; Zhang A; Li R
[Ad] Endereço:Institute of Molecular Agriculture & Bioenergy, Shanxi Agricultural University, Taigu, 030801, China. Electronic address: zhangli7912@163.com.
[Ti] Título:Genome-wide characterization of the SiDof gene family in foxtail millet (Setaria italica).
[So] Source:Biosystems;151:27-33, 2017 Jan.
[Is] ISSN:1872-8324
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:Dof (DNA binding with one finger) proteins, which constitute a class of transcription factors found exclusively in plants, are involved in numerous physiological and biochemical reactions affecting growth and development. A genome-wide analysis of SiDof genes was performed in this study. Thirty five SiDof genes were identified and those genes were unevenly distributed across nine chromosomes in the Seteria italica genome. Protein lengths, molecular weights, and theoretical isoelectric points of SiDofs all vary greatly. Gene structure analysis demonstrated that most SiDof genes lack introns. Phylogenetic analysis of SiDof proteins and Dof proteins from Arabidopsis thaliana, rice, sorghum, and Setaria viridis revealed six major groups. Analysis of RNA-Seq data indicated that SiDof gene expression levels varied across roots, stems, leaves, and spike. In addition, expression profiling of SiDof genes in response to stress suggested that SiDof 7 and SiDof 15 are involved in drought stress signalling. Overall, this study could provide novel information on SiDofs for further investigation in foxtail millet.
[Mh] Termos MeSH primário: Genoma de Planta/genética
Família Multigênica
Proteínas de Plantas/genética
Setaria (Planta)/genética
Fatores de Transcrição/genética
[Mh] Termos MeSH secundário: Motivos de Aminoácidos/genética
Sequência de Aminoácidos
Mapeamento Cromossômico
Cromossomos de Plantas/genética
Sequência Conservada/genética
Perfilação da Expressão Gênica/métodos
Regulação da Expressão Gênica de Plantas
Íntrons/genética
Fases de Leitura Aberta/genética
Filogenia
Proteínas de Plantas/classificação
Fatores de Transcrição/classificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Transcription Factors)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170216
[Lr] Data última revisão:
170216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161130
[St] Status:MEDLINE



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