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  1 / 9833 MEDLINE  
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[PMID]:29371663
[Au] Autor:Shinozaki Y; Nicolas P; Fernandez-Pozo N; Ma Q; Evanich DJ; Shi Y; Xu Y; Zheng Y; Snyder SI; Martin LBB; Ruiz-May E; Thannhauser TW; Chen K; Domozych DS; Catalá C; Fei Z; Mueller LA; Giovannoni JJ; Rose JKC
[Ad] Endereço:Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.
[Ti] Título:High-resolution spatiotemporal transcriptome mapping of tomato fruit development and ripening.
[So] Source:Nat Commun;9(1):364, 2018 01 25.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Tomato (Solanum lycopersicum) is an established model for studying fruit biology; however, most studies of tomato fruit growth and ripening are based on homogenized pericarp, and do not consider the internal tissues, or the expression signatures of individual cell and tissue types. We present a spatiotemporally resolved transcriptome analysis of tomato fruit ontogeny, using laser microdissection (LM) or hand dissection coupled with RNA-Seq analysis. Regulatory and structural gene networks, including families of transcription factors and hormone synthesis and signaling pathways, are defined across tissue and developmental spectra. The ripening program is revealed as comprising gradients of gene expression, initiating in internal tissues then radiating outward, and basipetally along a latitudinal axis. We also identify spatial variations in the patterns of epigenetic control superimposed on ripening gradients. Functional studies elucidate previously masked regulatory phenomena and relationships, including those associated with fruit quality traits, such as texture, color, aroma, and metabolite profiles.
[Mh] Termos MeSH primário: Frutas/genética
Regulação da Expressão Gênica no Desenvolvimento
Regulação da Expressão Gênica de Plantas
Lycopersicon esculentum/genética
Transcriptoma
[Mh] Termos MeSH secundário: Frutas/crescimento & desenvolvimento
Frutas/ultraestrutura
Perfilação da Expressão Gênica/métodos
Redes Reguladoras de Genes
Lycopersicon esculentum/crescimento & desenvolvimento
Microscopia Eletrônica de Transmissão
Proteínas de Plantas/genética
Plantas Geneticamente Modificadas
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Plant Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180127
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02782-9


  2 / 9833 MEDLINE  
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[PMID]:29329333
[Au] Autor:Mohri S; Takahashi H; Sakai M; Takahashi S; Waki N; Aizawa K; Suganuma H; Ara T; Matsumura Y; Shibata D; Goto T; Kawada T
[Ad] Endereço:Laboratory of Molecular Function of Food, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan.
[Ti] Título:Wide-range screening of anti-inflammatory compounds in tomato using LC-MS and elucidating the mechanism of their functions.
[So] Source:PLoS One;13(1):e0191203, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Obesity-induced chronic inflammation is a key factor in type 2 diabetes. A vicious cycle involving pro-inflammatory mediators between adipocytes and macrophages is a common cause of chronic inflammation in the adipose tissue. Tomato is one of the most popular vegetables and is associated with a reduced risk of diabetes. However, the molecular mechanism underlying the effect of tomato on diabetes is unclear. In this study, we focused on anti-inflammatory compounds in tomato. We found that the extract of tomato reduced plasma glucose and inflammatory markers in mice. We screened anti-inflammatory fractions in tomato using lipopolysaccharide-stimulated RAW264.7 macrophages, and active compounds were estimated by liquid chromatography-mass spectrometry over a wide range. Surprisingly, a large number of compounds including oxylipin and coumarin derivatives were estimated as anti-inflammatory compounds. Especially, 9-oxo-octadecadienoic acid and daphnetin suppressed pro-inflammatory cytokines in RAW264.7 macrophages inhibiting mitogen-activated protein kinase phosphorylation and inhibitor of kappa B α protein degradation. These findings suggest that tomato containing diverse anti-inflammatory compounds ameliorates chronic inflammation in obese adipose tissue.
[Mh] Termos MeSH primário: Anti-Inflamatórios/isolamento & purificação
Anti-Inflamatórios/farmacologia
Lycopersicon esculentum/química
[Mh] Termos MeSH secundário: Tecido Adiposo/efeitos dos fármacos
Tecido Adiposo/metabolismo
Animais
Anti-Inflamatórios/química
Glicemia/metabolismo
Cromatografia Líquida de Alta Pressão
Cumarínicos/química
Cumarínicos/isolamento & purificação
Cumarínicos/farmacologia
Citocinas/metabolismo
Avaliação Pré-Clínica de Medicamentos
Sistema de Sinalização das MAP Quinases/efeitos dos fármacos
Macrófagos/efeitos dos fármacos
Macrófagos/metabolismo
Masculino
Camundongos
Camundongos Endogâmicos C57BL
Óxido Nítrico/biossíntese
Obesidade/tratamento farmacológico
Obesidade/metabolismo
Oxilipinas/química
Oxilipinas/isolamento & purificação
Oxilipinas/farmacologia
Extratos Vegetais/química
Extratos Vegetais/isolamento & purificação
Extratos Vegetais/farmacologia
Células RAW 264.7
Espectrometria de Massas por Ionização por Electrospray
Umbeliferonas/química
Umbeliferonas/isolamento & purificação
Umbeliferonas/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Inflammatory Agents); 0 (Blood Glucose); 0 (Coumarins); 0 (Cytokines); 0 (Oxylipins); 0 (Plant Extracts); 0 (Umbelliferones); 31C4KY9ESH (Nitric Oxide); XC84571RD2 (daphnetin)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180113
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191203


  3 / 9833 MEDLINE  
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[PMID]:28471116
[Au] Autor:Rosas-Díaz T; Zhang D; Lozano-Durán R
[Ad] Endereço:Shanghai Center for Plant Stress Biology, Shanghai Institutes of Biological Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.
[Ti] Título:No evidence of seed transmissibility of Tomato yellow leaf curl virus in Nicotiana benthamiana.
[So] Source:J Zhejiang Univ Sci B;18(5):437-440, 2017 May.
[Is] ISSN:1862-1783
[Cp] País de publicação:China
[La] Idioma:eng
[Ab] Resumo:Recent work reported that Tomato yellow leaf curl virus (TYLCV) is seed-transmissible in tomato, contrary to previous belief. In this work, we explore whether TYLCV is also a seed-borne virus in another member of the Solanaceae family, the experimental host Nicotiana benthamiana.
[Mh] Termos MeSH primário: Begomovirus/fisiologia
Lycopersicon esculentum/virologia
Doenças das Plantas/virologia
Folhas de Planta/virologia
Sementes/virologia
Tabaco/virologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1631/jzus.B1600463


  4 / 9833 MEDLINE  
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[PMID]:29251469
[Au] Autor:Kaur R; Joshi N; Virk JS; Sharma S
[Ti] Título:Evaluation of Pseudomonas fluorescens for the management of tomato early blight disease and fruit borer.
[So] Source:J Environ Biol;37(5):869-872, 2016 09.
[Is] ISSN:0254-8704
[Cp] País de publicação:India
[La] Idioma:eng
[Ab] Resumo:Early blight disease and fruit damage by Helicoverpa armigera are serious problems of tomato causing heavy losses in the yield. An experiment was conducted to evaluate the efficacy of talc based formulation of antagonist Pseudomonas flourescens (Psf) delivered through two different forms of substrate, farmyard manure (FYM) and vermicompost, for the management of tomato early blight disease. Two treatments of Psf, were selected Solarization of nursery soil + seeds and seedlings root dip treatment with Psf formulation + Use of FYM colonized with Psf formulation; Solarization of nursery soil + seed and seedlings root dip treatment with Psf formulation + Use of vermicompost colonized with Psf formulation. These were compared with farmer's practice and untreated control. The impact of all these treatments on tomato fruit borer, H. armigera was also studied. There was not much variation in plant growth parameters (plant height and canopy width) between all the treatments. Both biocontrol treatments (17.69% and 141.3 q acre-1; 15.70% and 139.4 q acre-1, respectively), as well as farmer's practice (10.25% and 208.5 q acre-1) were found to be better than untreated control (29.21% and 94.6 q acre-1) in reducing the incidence of early blight disease in tomato and increasing the marketable yield of tomato fruits. However, the farmer's practice was found to be significantly better than both biocontrol treatments of Psf in controlling fruit damage due to disease, as well as fruit borer. The effect of both bioagents enriched formulations i.e. FYM+Psf and vermicompost+Psf with respect to disease was significantly at par with each other, whereas they had no impact on the fruit borer incidence. The results indicated that either of biocontrol treatments of P. flourescens using farmyard manure and vermicompost, as delivery substrates, can be considered as one of the component along with chemical control in developing IPM programme for the management of early blight disease in tomato.
[Mh] Termos MeSH primário: Antibiose
Lycopersicon esculentum/microbiologia
Mariposas/microbiologia
Controle Biológico de Vetores
Doenças das Plantas/microbiologia
Pseudomonas fluorescens/fisiologia
[Mh] Termos MeSH secundário: Animais
Compostagem
Esterco
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Manure)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE


  5 / 9833 MEDLINE  
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[PMID]:29177897
[Au] Autor:Silva DB; Bueno VHP; Van Loon JJA; Peñaflor MFGV; Bento JMS; Van Lenteren JC
[Ad] Endereço:Department of Entomology, Federal University of Lavras (UFLA), P.O.Box 3037, Lavras, MG, 37200-000, Brazil.
[Ti] Título:Attraction of Three Mirid Predators to Tomato Infested by Both the Tomato Leaf Mining Moth Tuta absoluta and the Whitefly Bemisia tabaci.
[So] Source:J Chem Ecol;44(1):29-39, 2018 Jan.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Plants emit volatile compounds in response to insect herbivory, which may play multiple roles as defensive compounds and mediators of interactions with other plants, microorganisms and animals. Herbivore-induced plant volatiles (HIPVs) may act as indirect plant defenses by attracting natural enemies of the attacking herbivore. We report here the first evidence of the attraction of three Neotropical mirid predators (Macrolophus basicornis, Engytatus varians and Campyloneuropsis infumatus) toward plants emitting volatiles induced upon feeding by two tomato pests, the leaf miner Tuta absoluta and the phloem feeder Bemisia tabaci, in olfactometer bioassays. Subsequently, we compared the composition of volatile blends emitted by insect-infested tomato plants by collecting headspace samples and analyzing them with GC-FID and GC-MS. Egg deposition by T. absoluta did not make tomato plants more attractive to the mirid predators than uninfested tomato plants. Macrolophus basicornis is attracted to tomato plants infested with either T. absoluta larvae or by a mixture of B. tabaci eggs, nymphs and adults. Engytatus varians and C. infumatus responded to volatile blends released by tomato plants infested with T. absoluta larvae over uninfested plants. Also, multiple herbivory by T. absoluta and B. tabaci did not increase the attraction of the mirids compared to infestation with T. absoluta alone. Terpenoids represented the most important class of compounds in the volatile blends and there were significant differences between the volatile blends emitted by tomato plants in response to attack by T. absoluta, B. tabaci, or by both insects. We, therefore, conclude that all three mirids use tomato plant volatiles to find T. absoluta larvae. Multiple herbivory did neither increase, nor decrease attraction of C. infumatus, E. varians and M. basicornis. By breeding for higher rates of emission of selected terpenes, increased attractiveness of tomato plants to natural enemies may improve the effectiveness of biological control.
[Mh] Termos MeSH primário: Heterópteros/fisiologia
Lycopersicon esculentum/química
Mariposas/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Cromatografia Gasosa-Espectrometria de Massas
Heterópteros/crescimento & desenvolvimento
Larva/efeitos dos fármacos
Larva/fisiologia
Lycopersicon esculentum/metabolismo
Mariposas/crescimento & desenvolvimento
Ninfa/efeitos dos fármacos
Ninfa/fisiologia
Folhas de Planta/química
Folhas de Planta/metabolismo
Comportamento Predatório/efeitos dos fármacos
Análise de Componente Principal
Compostos Orgânicos Voláteis/análise
Compostos Orgânicos Voláteis/química
Compostos Orgânicos Voláteis/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Volatile Organic Compounds)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-017-0909-x


  6 / 9833 MEDLINE  
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[PMID]:29224131
[Au] Autor:Macedo MA; Albuquerque LC; Maliano MR; Souza JO; Rojas MR; Inoue-Nagata AK; Gilbertson RL
[Ad] Endereço:Department of Plant Pathology, University of Brasilia, Federal District, Brazil. monica.macedo.unb@gmail.com.
[Ti] Título:Characterization of tomato leaf curl purple vein virus, a new monopartite New World begomovirus infecting tomato in Northeast Brazil.
[So] Source:Arch Virol;163(3):737-743, 2018 Mar.
[Is] ISSN:1432-8798
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:A new begomovirus species was identified from tomato plants with upward leaf curling and purple vein symptoms, which was first identified in the Piaui state of Northeast (NE) Brazil in 2014. Tomato leaf samples were collected in 2014 and 2016, and PCR with degenerate primers revealed begomovirus infection. Rolling circle amplification and restriction enzyme digestion indicated a single genomic DNA of ~ 2.6 kb. Cloning and sequencing revealed a genome organization similar to DNA-A components of New World (NW) bipartite begomoviruses, with no DNA-B. The complete nucleotide sequence had the highest identity (80%) with the DNA-A of Macroptilium yellow spot virus (MacYSV), and phylogenetic analyses showed it is a NW begomovirus that clusters with MacYSV and Blainvillea yellow spot virus, also from NE Brazil. Tomato plants agroinoculated with a dimeric clone of this genomic DNA developed upward leaf curling and purple vein symptoms, indistinguishable from those observed in the field. Based on agroinoculation, this virus has a narrow host range, mainly within the family Solanaceae. Co-inoculation experiments with tomato severe rugose virus and tomato mottle leaf curl virus, the two predominant begomoviruses infecting tomato in Brazil, revealed a synergistic interaction among these begomoviruses. The name Tomato leaf curl purple vein virus (ToLCPVV) is proposed for this new begomovirus.
[Mh] Termos MeSH primário: Begomovirus/genética
DNA Viral/genética
Genoma Viral
Lycopersicon esculentum/virologia
Filogenia
Folhas de Planta/virologia
[Mh] Termos MeSH secundário: Begomovirus/classificação
Begomovirus/isolamento & purificação
Brasil
Sequenciamento de Nucleotídeos em Larga Escala
Especificidade de Hospedeiro
Doenças das Plantas/virologia
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Viral)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171211
[St] Status:MEDLINE
[do] DOI:10.1007/s00705-017-3662-0


  7 / 9833 MEDLINE  
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[PMID]:29209811
[Au] Autor:Panno S; Caruso AG; Davino S
[Ad] Endereço:Department of Agricultural, Food and Forest science, University of Palermo, Viale delle Scienze, bld 5, 90128, Palermo, Italy.
[Ti] Título:The nucleotide sequence of a recombinant tomato yellow leaf curl virus strain frequently detected in Sicily isolated from tomato plants carrying the Ty-1 resistance gene.
[So] Source:Arch Virol;163(3):795-797, 2018 Mar.
[Is] ISSN:1432-8798
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:In July 2016, an aggressive syndrome of tomato yellow leaf curl disease was reported in Sicily in tomato plants carrying the Ty-1 resistance gene. A total of 34 samples were collected and analyzed. Twenty-seven out of the 34 samples analyzed appeared to contain only recombinant molecules. One full sequence was obtained after cloning. Alignments and plot similarity analysis showed that the genome of the recombinant, named TYLCV-IL[IT:Sic23:16], was mostly derived from tomato yellow leaf curl virus (TYLCV), with a small region of 132 nucleotides in the non-coding region between the stem-loop and the start of the V2 ORF replaced by 124 nucleotides derived from a virus of a different species, tomato yellow leaf curl Sardinia virus. All plants in which the new recombinant was detected belonged to resistant tomato cultivars.
[Mh] Termos MeSH primário: Begomovirus/genética
Genes Virais/genética
Lycopersicon esculentum/virologia
Folhas de Planta/virologia
Recombinação Genética
[Mh] Termos MeSH secundário: Sequência de Bases
Begomovirus/classificação
Begomovirus/isolamento & purificação
Resistência à Doença/genética
Suscetibilidade a Doenças
Sequenciamento de Nucleotídeos em Larga Escala
Lycopersicon esculentum/genética
Lycopersicon esculentum/imunologia
Doenças das Plantas/genética
Doenças das Plantas/imunologia
Doenças das Plantas/virologia
Imunidade Vegetal/genética
Folhas de Planta/genética
Folhas de Planta/imunologia
Plantas Geneticamente Modificadas
Análise de Sequência de DNA
Sicília
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171207
[St] Status:MEDLINE
[do] DOI:10.1007/s00705-017-3674-9


  8 / 9833 MEDLINE  
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[PMID]:29224342
[Au] Autor:Iwai R; Han C; Govindam SVS; Ojika M
[Ad] Endereço:Graduate School of Bioagricultural Sciences, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
[Ti] Título:Lycosides, Unusual Carotenoid-Derived Terpenoid Glycosides from a Vegetable Juice, Inhibit Asexual Reproduction of the Plant Pathogen Phytophthora.
[So] Source:J Agric Food Chem;66(1):163-169, 2018 Jan 10.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Vegetable juices, typical culture media for the plant pathogen Phytophthora, effectively induce its asexual reproduction (zoosporangia formation). However, some chromatographic fractions from a vegetable juice were found to inhibit asexual reproduction. Bioassay-guided chromatographic steps led to the isolation of four novel compounds, named lycosides A-D, 1-4, that could be metabolic products from a carotenoid. They showed 50% inhibitory activity against the asexual reproduction of P. capsici at 2.1-7.6 µM. The structure-activity relationship and the universality of the inhibitory activity within the Phytophthora genus were also investigated. In addition, the quantitative analysis of lycosides in fresh vegetables and vegetable juices revealed that tomato is the source of these active substances. These food-derived chemicals could help provide safe agents to control the outbreak of the agricultural pest Phytophthora in fields.
[Mh] Termos MeSH primário: Sucos de Frutas e Vegetais
Glicosídeos/farmacologia
Phytophthora/efeitos dos fármacos
Terpenos/farmacologia
[Mh] Termos MeSH secundário: Carotenoides/isolamento & purificação
Carotenoides/farmacologia
Glicosídeos/química
Glicosídeos/isolamento & purificação
Lycopersicon esculentum/química
Estrutura Molecular
Phytophthora/patogenicidade
Phytophthora/fisiologia
Reprodução Assexuada/efeitos dos fármacos
Relação Estrutura-Atividade
Terpenos/química
Terpenos/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Glycosides); 0 (Terpenes); 36-88-4 (Carotenoids)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171212
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b04766


  9 / 9833 MEDLINE  
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[PMID]:29314836
[Au] Autor:Lee J; Nonaka S; Takayama M; Ezura H
[Ad] Endereço:Graduate School of Life and Environmental Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
[Ti] Título:Utilization of a Genome-Edited Tomato (Solanum lycopersicum) with High Gamma Aminobutyric Acid Content in Hybrid Breeding.
[So] Source:J Agric Food Chem;66(4):963-971, 2018 Jan 31.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:γ-Aminobutyric acid (GABA) is a nonproteogenic amino acid with health-promoting functions. Although tomato fruits have a relatively high GABA content compared with other crops, levels must be further increased to effectively confer the health-promoting functions. In this study, we evaluated the potential of the genome-edited tomato as a breeding material for producing high-GABA hybrid tomatoes. Hybrid lines were produced by crossing the genome-edited tomato with a pure line tomato cultivar, "Aichi First", and were evaluated for GABA accumulation and other fruit traits. The hybrid lines showed high GABA accumulation in the fruits, which was sufficiently high for expecting health-promoting functions and had minimal effects on other fruit traits, suggesting that the high GABA is a dominant trait and that the genome-edited tomato would be useful as a parental line of hybrid cultivars. These results also indicate that genome editing technology is useful for the rapid breeding of high-GABA hybrid tomato cultivars.
[Mh] Termos MeSH primário: Hibridização Genética
Lycopersicon esculentum/química
Lycopersicon esculentum/genética
Melhoramento Vegetal/métodos
Plantas Geneticamente Modificadas
Ácido gama-Aminobutírico/análise
[Mh] Termos MeSH secundário: Alelos
Sequência de Aminoácidos
Aminoácidos/análise
Carotenoides/análise
Edição de Genes
Genes de Plantas
Glutamato Descarboxilase/química
Glutamato Descarboxilase/genética
Lycopersicon esculentum/metabolismo
Mutação
Plantas Geneticamente Modificadas/genética
Ácido gama-Aminobutírico/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Amino Acids); 36-88-4 (Carotenoids); 56-12-2 (gamma-Aminobutyric Acid); EC 4.1.1.15 (Glutamate Decarboxylase)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b05171


  10 / 9833 MEDLINE  
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[PMID]:29278857
[Au] Autor:Suthaparan A; Pathak R; Solhaug KA; Gislerød HR
[Ad] Endereço:Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, 1432 Ås, Norway. Electronic address: aruppillai.suthaparan@nmbu.no.
[Ti] Título:Wavelength dependent recovery of UV-mediated damage: Tying up the loose ends of optical based powdery mildew management.
[So] Source:J Photochem Photobiol B;178:631-640, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Controlled environment chamber experiments at Petri dish level were conducted to examine the wavelength and dose dependent efficacy of ultraviolet (UV) radiation, the recovery action potential of optical radiation applied concomitantly/subsequently to effective UV treatment, and the lapse time between UV treatment and subsequent exposure to recovery wavelength on germination efficiency of Oidium neolycopersici conidia. Conidia of eight- to nine-day-old colonies were dusted on water agar surface in Petri dishes and exposed to UV treatments (without lid). Immediately after UV treatments, Petri dishes were sealed and incubated in darkness or differing optical environments generated using seven different radiation sources (range 290nm to 780nm). Twenty-four hours after UV treatment, fifty conidia from each sample were assessed for germination. Compared to non-UV controls, <10% of the conidia germinated after 30s of exposure to 254nm or 283nm UV and subsequent dark incubation. Conidia germination was almost negligible if the exposure duration increased to 4min. Germination was about 60% with broad spectrum UV after 1min of exposure, and about 35% after 2 to 4min of exposure. There was no reduction of conidia germination with the exposure of ≤4min with 310nm. With the tested wavelength and dose ranges, germination recovery was effective in the 350nm to 500nm range. Germination efficiency of conidia treated with effective UV was significantly higher (>73%) if incubated subsequently in the 350nm to 500nm range (germination recovery). Furthermore, germination recovery depends on the characteristics of UV treatment (wavelength, and duration of exposure) and the lapse time between UV treatment and subsequent exposure to optical radiation in the recovery range. The findings of this study provide key criteria for wavelength selection, combination and application time in the optical radiation range, enabling improved design of optical based management strategies against powdery mildews.
[Mh] Termos MeSH primário: Ascomicetos/fisiologia
Esporos Fúngicos/efeitos da radiação
Raios Ultravioleta
[Mh] Termos MeSH secundário: Ascomicetos/crescimento & desenvolvimento
Ascomicetos/efeitos da radiação
Lycopersicon esculentum/microbiologia
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171227
[St] Status:MEDLINE



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