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[PMID]:29338217
[Au] Autor:Naseeruddin R; Sumathi V; Prasad TNVKV; Sudhakar P; Chandrika V; Ravindra Reddy B
[Ad] Endereço:Department of Agronomy, Sri Venkateswara Agricultural College, ‡Nanotechnology Lab, Institute of Frontier Technology, Regional Agricultural Research Station (RARS), §Crop Physiology, Sri Venkateswara Agricultural College, and ∥Department of Statistics and Mathematics, Sri Venkateswara Agricultural
[Ti] Título:Unprecedented Synergistic Effects of Nanoscale Nutrients on Growth, Productivity of Sweet Sorghum [Sorghum bicolor (L.) Moench], and Nutrient Biofortification.
[So] Source:J Agric Food Chem;66(5):1075-1084, 2018 Feb 07.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Evidence-based synergistic effects of nanoscale materials (size of <100 nm in at least one dimension) were scantly documented in agriculture at field scale. Herein, we report for the first time on effects of nanoscale zinc oxide (n-ZnO), calcium oxide (n-CaO), and magnesium oxide (n-MgO) on growth and productivity of sweet sorghum [Sorghum bicolor (L.) Moench]. A modified sol-gel method was used to prepare nanoscale materials under study. Characterization was performed using transmission and scanning electron microscopies, X-ray diffraction, and dynamic light scattering. Average sizes (25, 53.7, and 53.5 nm) and ζ potentials (-10.9, -28.2, and -16.2 mV) of n-ZnO, n-CaO, and n-MgO were measured, respectively. The significant grain yield (17.8 and 14.2%), cane yield (7.2 and 8.0%), juice yield (10 and 12%), and higher sucrose yield (21.8 and 20.9%) were recorded with the application of nanoscale materials in the years 2014 and 2015, respectively. Nutrient uptake was significant with foliar application of nanoscale nutrients.
[Mh] Termos MeSH primário: Biofortificação/métodos
Compostos de Cálcio/administração & dosagem
Óxido de Magnésio/administração & dosagem
Nanopartículas/administração & dosagem
Óxidos/administração & dosagem
Sorghum/crescimento & desenvolvimento
Óxido de Zinco/administração & dosagem
[Mh] Termos MeSH secundário: Agricultura/métodos
Compostos de Cálcio/metabolismo
Sinergismo Farmacológico
Óxido de Magnésio/metabolismo
Microscopia Eletrônica de Varredura
Óxidos/metabolismo
Tamanho da Partícula
Sorghum/efeitos dos fármacos
Óxido de Zinco/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Calcium Compounds); 0 (Oxides); 3A3U0GI71G (Magnesium Oxide); C7X2M0VVNH (lime); SOI2LOH54Z (Zinc Oxide)
[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:180118
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b04467


  2 / 1677 MEDLINE  
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[PMID]:29261255
[Au] Autor:Kandan A; Akhtar J; Singh B; Pal D; Chand D; Rajkumar S; Agarwal PC
[Ti] Título:Genetic diversity analysis of fungal pathogen Bipolaris sorghicola infecting Sorghum bicolor in India.
[So] Source:J Environ Biol;37(6):1323-30, 2016 11.
[Is] ISSN:0254-8704
[Cp] País de publicação:India
[La] Idioma:eng
[Ab] Resumo:Bipolaris sorghicola (Lefebvre and Sherwin) is a well known and economically important seed-borne pathogen with the specific species of sorghum (Sorghum bicolor [L] Moench) as host. Thirty-two strains were obtained from different geographical area of sorghum growing places in India. Molecular characterization using three marker systems i.e., universal rice primers (URP), inter simple sequence repeat (ISSR) and random amplified polymorphic DNA (RAPD) was carried out. Molecular marker work revealed differences along with geographical origin clustering of various B. sorghicola strains which could not be revealed through conventional method of characterization. Out of 13 URPs, 20 ISSR and 50 RAPD primers screened, 8 primers each from URP and ISSR, and 10 primers from RAPD marker were found to result in reproducible banding pattern. One hundred per cent of polymorphic bands was recorded in all three molecular markers. Total number of bands was recorded 1986 with average of 248.25 in URP marker, and 2026 bands with average of 253.25 in ISSR marker and 2158 bands with average of 215.80 in RAPD markers. Maximum heterozygosity (Hn) was revealed by URP 17R (0.40), ISSR 10 (0.41) and RAPD marker OPC-5 (0.34). The polymorphism information content (PIC) values ranged between 5.89 to 8.28 in URP, 4.57 to 8.79 in ISSR and 4.44 to 9.64 in RAPD marker profiles. Maximum cophenetic correlation was found in URP (r = 0.910) followed by ISSR (r = 0.904) and RAPD (r = 0.870). The combined analysis of all three marker systems showed high cophenetic correlation (r = 0.911), which indicated a very good fit of the data for genetic diversity analysis. To best of our knowledge, this is a first report of genetic characterization of B. sorghicola. Hence, combined use of three marker systems would be more sensitive and reliable in characterizing genetic variability in B. sorghicola strains.
[Mh] Termos MeSH primário: Ascomicetos/genética
Variação Genética
Doenças das Plantas/microbiologia
Sorghum/microbiologia
[Mh] Termos MeSH secundário: DNA Fúngico/genética
Marcadores Genéticos
Índia
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Fungal); 0 (Genetic Markers)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180219
[Lr] Data última revisão:
180219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171221
[St] Status:MEDLINE


  3 / 1677 MEDLINE  
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[PMID]:29172504
[Au] Autor:Wu Q; Lin J; Cui K; Du R; Zhu Y; Xu Y
[Ad] Endereço:The Key Laboratory of Industrial Biotechnology, Ministry of Education, State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan University , Wuxi, Jiangsu 214122, China.
[Ti] Título:Effect of Microbial Interaction on Urea Metabolism in Chinese Liquor Fermentation.
[So] Source:J Agric Food Chem;65(50):11133-11139, 2017 Dec 20.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Urea is the primary precursor of the carcinogen ethyl carbamate in fermented foods. Understanding urea metabolism is important for controlling ethyl carbamate production. Using Chinese liquor as a model system, we used metatranscriptome analysis to investigate urea metabolism in spontaneous food fermentation processes. Saccharomyces cerevisiae was dominant in gene transcription for urea biosynthesis and degradation. Lysinibacillus sphaericus was dominant for urea degradation. S. cerevisiae degraded 18% and L. sphaericus degraded 13% of urea in their corresponding single cultures, whereas they degraded 56% of urea in coculture after 12 h. Compared to single cultures, transcription of CAR1, DAL2, and argA, which are related to urea biosynthesis, decreased by 51, 36, and 69% in coculture, respectively. Transcription of DUR1 and ureA, which are related to urea degradation, increased by 227 and 70%, respectively. Thus, coexistence of the two strains promoted degradation of urea via transcriptional regulation of genes related to urea metabolism.
[Mh] Termos MeSH primário: Bacillaceae/metabolismo
Saccharomyces cerevisiae/metabolismo
Ureia/metabolismo
Vinho/microbiologia
[Mh] Termos MeSH secundário: Bacillaceae/genética
Fermentação
Saccharomyces cerevisiae/genética
Sorghum/metabolismo
Sorghum/microbiologia
Vinho/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
8W8T17847W (Urea)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180110
[Lr] Data última revisão:
180110
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b04099


  4 / 1677 MEDLINE  
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[PMID]:28600852
[Au] Autor:Akogou FU; Kayodé AP; den Besten HM; Linnemann AR
[Ad] Endereço:Laboratory of Valorization and Quality Management of Food Bio-Ingredients (LaBio), DNSA/FSA, Université d'Abomey-Calavi, Cotonou, Benin.
[Ti] Título:Extraction methods and food uses of a natural red colorant from dye sorghum.
[So] Source:J Sci Food Agric;98(1):361-368, 2018 Jan.
[Is] ISSN:1097-0010
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The interest in stable natural colorants for food applications continues to grow. A red pigment extracted from the leaf sheaths of a sorghum variety (Sorghum bicolor) with a high content of apigeninidin is widely used as a biocolorant in processed foods in West Africa. This study compared the colour and anthocyanin composition from traditional extraction methods to determine options for improvement and use of the red biocolorant from dye sorghum in the food sector. RESULTS: Sorghum biocolorant was commonly applied in fermented and heated foods. Traditional extraction methods predominantly differed in two aspects, namely the use of an alkaline rock salt (locally known as kanwu) and the temperature of the extraction water. Cool extraction using the alkaline ingredient was more efficient than hot alkaline and hot aqueous extractions in extracting anthocyanins. The apigeninidin content was three times higher in the cool and hot alkaline extracts than in the aqueous extract. CONCLUSION: Cool and hot alkaline extractions at pH 8-9 were the most efficient methods for extracting apigeninidin from dye sorghum leaf sheaths. Broader use of the sorghum biocolorant in foods requires further research on its effects on nutrient bioavailability and antioxidant activity. © 2017 Society of Chemical Industry.
[Mh] Termos MeSH primário: Pigmentos Biológicos/isolamento & purificação
Extratos Vegetais/isolamento & purificação
Sorghum/química
[Mh] Termos MeSH secundário: Antocianinas/análise
Antocianinas/isolamento & purificação
Apigenina/análise
Apigenina/isolamento & purificação
Cor
Pigmentos Biológicos/análise
Extratos Vegetais/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins); 0 (Pigments, Biological); 0 (Plant Extracts); 7V515PI7F6 (Apigenin); CWI2JJB0W1 (apigeninidin)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171228
[Lr] Data última revisão:
171228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170611
[St] Status:MEDLINE
[do] DOI:10.1002/jsfa.8479


  5 / 1677 MEDLINE  
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[PMID]:28873577
[Au] Autor:Elhassan MSM; Oguntoyinbo SI; Taylor J; Taylor JRN
[Ad] Endereço:Institute for Food, Nutrition and Well-being and Department of Food Science, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa.
[Ti] Título:Formation and properties of viscoelastic masses made from kafirin by a process of simple coacervation from solution in glacial acetic acid using water.
[So] Source:Food Chem;239:333-342, 2018 Jan 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Stable viscoelastic masses have been formed from kafirin in a mainly aqueous system. Kafirin was dissolved in glacial acetic acid (GAA) and simple coacervation was performed by rapid addition of 15°C water under low shear. Kafirin precipitated out as a network of hydrated fibrils which could be hand-kneaded into a viscoelastic mass. These could be formed from a very wide range of kafirins, including those where ß- or γ-subclass expression was suppressed. Kafirin composition influenced the appearance of the masses but did not fundamentally affect stress-relaxation behaviour. Fresh kafirin masses exhibited similar elasticity and viscous flow balance to gluten. They maintained functionality when stored for several days at 10°C but their elastic component increased. FTIR showed that when kafirin was dissolved in GAA its α-helical conformation increased substantially. Dissociation of the kafirin molecules in GAA, assuming a α-helical conformation may have enhanced water binding, enabling viscoelastic mass formation.
[Mh] Termos MeSH primário: Proteínas de Plantas/química
[Mh] Termos MeSH secundário: Ácido Acético
Elasticidade
Peso Molecular
Sorghum
Viscosidade
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (kafirin protein, Sorghum bicolor); 059QF0KO0R (Water); Q40Q9N063P (Acetic Acid)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170907
[St] Status:MEDLINE


  6 / 1677 MEDLINE  
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[PMID]:28867105
[Au] Autor:Rao BD; Kulkarni DB; C K
[Ad] Endereço:Indian Institute of Millets Research, Rajendranagar, Hyderabad (TS), India. Electronic address: dayakar@millets.res.in.
[Ti] Título:Study on evaluation of starch, dietary fiber and mineral composition of cookies developed from 12 sorghum cultivars.
[So] Source:Food Chem;238:82-86, 2018 Jan 01.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The study aimed to identify best cultivars suitable for sorghum cookies accordingly nutrient and mineral compositions were evaluated. Protein and fat content of cookies were ranged from 5.89±0.04 to 8.27±0.21% and 21.03±0.01 to 23.08±0.03% respectively. The starch content of cookie ranged between 47.06±0.01 and 42.15±0.03% and dietary fiber was reported highest in CSH14 (9.27±0.01%). The highest Mg (56.24±0.03mg/100g) P (255.54±0.03mg/100g), and K (124.26±0.02mg/100g) content were found in C43 cultivar. CSV18R was reported highest iron content (1.23±0.01mg/100g). The sensory scores for overall acceptability of cookies were highest in CSH23, CSH13R and CSV18R cultivars which are rich in dietary fiber and minerals. Normally the hybrids are high yielders and the grain price/qt is 20% lower than varieties. It is implied the raw material costs of two identified cultivars (CSH23 & CSH13R) would help the industry to reduce overall cost of production and offer a better profit margins over the varieties.
[Mh] Termos MeSH primário: Sorghum
[Mh] Termos MeSH secundário: Fibras na Dieta
Grãos Comestíveis
Minerais
Amido
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dietary Fiber); 0 (Minerals); 9005-25-8 (Starch)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170905
[St] Status:MEDLINE


  7 / 1677 MEDLINE  
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[PMID]:28451955
[Au] Autor:Guragain YN; Srinivasa Rao P; Vara Prasad PV; Vadlani PV
[Ad] Endereço:Bioprocessing and Renewable Energy Laboratory, Grain Science and Industry, Kansas State University, Manhattan, KS, USA. guragain@ksu.edu.
[Ti] Título:Evaluation of Brown Midrib Sorghum Mutants as a Potential Biomass Feedstock for 2,3-Butanediol Biosynthesis.
[So] Source:Appl Biochem Biotechnol;183(3):1093-1110, 2017 Nov.
[Is] ISSN:1559-0291
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Three sorghum backgrounds [Atlas, Early Hegari (EH), and Kansas Collier (KC)] and two bmr mutants (bmr6 and bmr12) of each line were evaluated and compared for grain and biomass yield, biomass composition, and 2,3-butanediol production from biomass. The data showed that the bmr6 mutation in EH background led to a significant decrease in stover yield and increase in grain yield, whereas the stover yield was increased by 64% without affecting grain yield in KC background. The bmr mutants had 10 to 25% and 2 to 9% less lignin and structural carbohydrate contents, respectively, and 24 to 93% more non-structural sugars than their parents in all sorghum lines, except EH bmr12. The total fermentable sugars released were 22 to 36% more in bmr mutants than in parents for Atlas and KC, but not for EH. The bmr6 mutation in KC background produced the most promising feedstock, among the evaluated bmr mutants, for 2,3-butanediol production without affecting grain yield, followed by KC bmr12 and Atlas bmr6, but the bmr mutation had an adverse effect in EH background. This indicated that the genetic background of the parent line and type of bmr mutation significantly affect the biomass quality as a feedstock for biochemical production.
[Mh] Termos MeSH primário: Biomassa
Biotecnologia
Butileno Glicóis/metabolismo
Mutação
Sorghum/genética
Sorghum/metabolismo
[Mh] Termos MeSH secundário: Fermentação
Hidrólise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Butylene Glycols); 45427ZB5IJ (2,3-butylene glycol)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1007/s12010-017-2486-4


  8 / 1677 MEDLINE  
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[PMID]:29056105
[Au] Autor:Llopart EE; Cian RE; López-Oliva MME; Zuleta Á; Weisstaub A; Drago SR
[Ad] Endereço:1Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ingeniería Química,Instituto de Tecnología de Alimentos,Universidad Nacional del Litoral,Santiago del Estero 2829,Santa Fe,Argentina.
[Ti] Título:Colonic and systemic effects of extruded whole-grain sorghum consumption in growing Wistar rats.
[So] Source:Br J Nutr;118(8):589-597, 2017 Oct.
[Is] ISSN:1475-2662
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Colonic effects of extruded whole-grain sorghum diets were evaluated using a model of growing rats. In all, twenty-four male Wistar rats were fed control (C), extruded white sorghum (EWS) or red sorghum (ERS). Consumption of sorghum diets showed satiety properties, with reduction of caecal pH, and lower activity of ß-glucosidase and ß-glucuronidase enzymes. Decreased copper zinc superoxide dismutase and manganese superoxide dismutase and increased catalase and glutathione peroxidase levels were observed in colonic mucosa. The induction of antioxidant enzymes occurred through the activation of the nuclear factor erythroid 2-related factor 2 protein and its subsequent translocation into the nucleus. ERS was able to decrease the proliferation of proximal mucosa of colon, demonstrating a possible effect against colorectal tumourigenesis. EWS increased proliferation and also apoptosis, ensuring the re-establishment of homoeostasis of the colonic mucosa. No antioxidant systemic effect (serum or hepatic level) was observed. It is likely that despite the extrusion the low bioavailability of the phenolic compounds of sorghum diets caused them to exert mainly acute effects at the colon level. Extruded whole-grain sorghum is a good functional ingredient that might be promising in dietary prevention of intestinal diseases.
[Mh] Termos MeSH primário: Colo/metabolismo
Dieta
Sorghum/química
Grãos Integrais/química
[Mh] Termos MeSH secundário: Animais
Catalase/metabolismo
Modelos Animais de Doenças
Glucuronidase/metabolismo
Glutationa Peroxidase/metabolismo
Concentração de Íons de Hidrogênio
Enteropatias/prevenção & controle
Mucosa Intestinal/metabolismo
Masculino
Fator 2 Relacionado a NF-E2/genética
Fator 2 Relacionado a NF-E2/metabolismo
Ratos
Ratos Wistar
Saciação
Superóxido Dismutase/metabolismo
beta-Glucosidase/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (NF-E2-Related Factor 2); 0 (Nfe2l2 protein, rat); EC 1.11.1.6 (Catalase); EC 1.11.1.9 (Glutathione Peroxidase); EC 1.15.1.1 (Superoxide Dismutase); EC 3.2.1.21 (beta-Glucosidase); EC 3.2.1.31 (Glucuronidase)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171030
[Lr] Data última revisão:
171030
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171024
[St] Status:MEDLINE
[do] DOI:10.1017/S0007114517002513


  9 / 1677 MEDLINE  
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[PMID]:28982140
[Au] Autor:Raya-Díaz S; Sánchez-Rodríguez AR; Segura-Fernández JM; Del Campillo MDC; Quesada-Moraga E
[Ad] Endereço:Departamento de Ciencias y Recursos Agrícolas y Forestales, Universidad de Córdoba, ETSIAM, Córdoba, Spain.
[Ti] Título:Entomopathogenic fungi-based mechanisms for improved Fe nutrition in sorghum plants grown on calcareous substrates.
[So] Source:PLoS One;12(10):e0185903, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Although entomopathogenic fungi (EPF) are best known for their ability to protect crops against insect pests, they may have other beneficial effects on their host plants. These effects, which include promoting plant growth and conferring resistance against abiotic stresses, have been examined in recent years to acquire a better understanding of them. The primary purposes of the present study were (i) to ascertain in vitro whether three different strains of EPF (viz., Metarhizium, Beauveria and Isaria) would increase the Fe bioavailability in calcareous or non-calcareous media containing various Fe sources (ferrihydrite, hematite and goethite) and (ii) to assess the influence of the EPF inoculation method (seed dressing, soil treatment or leaf spraying) on the extent of the endophytic colonization of sorghum and the improvement in the Fe nutrition of pot-grown sorghum plants on an artificial calcareous substrate. All the EPFs studied were found to increase the Fe availability during the in vitro assay. The most efficient EPF was M. brunneum EAMa 01/58-Su, which lowered the pH of the calcareous medium, suggesting that it used a different strategy (organic acid release) than the other two fungi that raised the pH of the non-calcareous medium. The three methods used to inoculate sorghum plants with B. bassiana and M. brunneum in the pot experiment led to differences in re-isolation from plant tissues and in the plant height. These three inoculation methods increased the leaf chlorophyll content of young leaves when the Fe deficiency symptoms were most apparent in the control plants (without fungal inoculation) as well as the Fe content of the above-ground biomass in the plants at the end of the experiment. The total root lengths and fine roots were also increased in response to fungal applications with the three inoculation methods. However, the soil treatment was the most efficient method; thus, its effect on the leaf chlorophyll content was the most persistent, and the effects on the total root length and fine roots were the most apparent. In conclusion, EPF improved the Fe nutrition of the sorghum plants, but their effects depended on the inoculation method.
[Mh] Termos MeSH primário: Beauveria/fisiologia
Ferro/metabolismo
Metarhizium/fisiologia
Sorghum/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Microscopia Eletrônica de Transmissão
Sorghum/microbiologia
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
E1UOL152H7 (Iron)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171006
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185903


  10 / 1677 MEDLINE  
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[PMID]:28886042
[Au] Autor:Ranwez V; Serra A; Pot D; Chantret N
[Ad] Endereço:Montpellier SupAgro, UMR AGAP, Montpellier, France.
[Ti] Título:Domestication reduces alternative splicing expression variations in sorghum.
[So] Source:PLoS One;12(9):e0183454, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Domestication is known to strongly reduce genomic diversity through population bottlenecks. The resulting loss of polymorphism has been thoroughly documented in numerous cultivated species. Here we investigate the impact of domestication on the diversity of alternative transcript expressions using RNAseq data obtained on cultivated and wild sorghum accessions (ten accessions for each pool). In that aim, we focus on genes expressing two isoforms in sorghum and estimate the ratio between expression levels of those isoforms in each accession. Noticeably, for a given gene, one isoform can either be overexpressed or underexpressed in some wild accessions, whereas in the cultivated accessions, the balance between the two isoforms of the same gene appears to be much more homogenous. Indeed, we observe in sorghum significantly more variation in isoform expression balance among wild accessions than among domesticated accessions. The possibility exists that the loss of nucleotide diversity due to domestication could affect regulatory elements, controlling transcription or degradation of these isoforms. Impact on the isoform expression balance is discussed. As far as we know, this is the first time that the impact of domestication on transcript isoform balance has been studied at the genomic scale. This could pave the way towards the identification of key domestication genes with finely tuned isoform expressions in domesticated accessions while being highly variable in their wild relatives.
[Mh] Termos MeSH primário: Processamento Alternativo/genética
Sorghum/genética
Sorghum/metabolismo
[Mh] Termos MeSH secundário: Processamento Alternativo/fisiologia
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Isoformas de Proteínas/genética
Isoformas de Proteínas/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Protein Isoforms)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170909
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183454



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