Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.312.299 [Categoria DeCS]
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  1 / 61 MEDLINE  
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[PMID]:28863164
[Au] Autor:Li N; Chen Q; Zhu J; Wang X; Huang JB; Huang GH
[Ad] Endereço:Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Changsha, China.
[Ti] Título:Seasonal dynamics and spatial distribution pattern of Parapoynx crisonalis (Lepidoptera: Crambidae) on water chestnuts.
[So] Source:PLoS One;12(9):e0184149, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Parapoynx crisonalis (Walker, 1859) (Lepidoptera: Crambidae) is a major pest of aquatic vegetables and aquatic landscape plants. It has been responsible for causing considerable economic damage to water chestnut (Trapa natans) plants. In the Changsha vicinity of China, P. crisonalis has five generations a year. Populations of P. crisonalis were relatively low in April and began to rapidly rise at the beginning of May. At the end of July and early August, the population dropped dramatically. A rebound occurred at the end of August and early September, which was referred to as the second population peak. From then, until early November, the P. crisonalis population steadily diminished in preparation for overwintering. The primary factors influencing the seasonal dynamics of P. crisonalis were the climatic conditions, especially the temperature, and secondarily precipitation. Between May and October, the P. crisonalis adults were evenly distributed in the pond. In May and June, the eggs of P. crisonalis were present in an aggregate distribution, due to the effects of environmental heterogeneity. In July and August, however, they were found to be in a uniform distribution.
[Mh] Termos MeSH primário: Distribuição Animal
Eleocharis
Lepidópteros
Estações do Ano
[Mh] Termos MeSH secundário: Animais
China
Clima
Meio Ambiente
Dinâmica Populacional
Temperatura Ambiente
Tempo (Meteorologia)
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170902
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184149


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[PMID]:27815853
[Au] Autor:Valles-Aragón MC; Alarcón-Herrera MT; Llorens E; Obradors-Prats J; Leyva A
[Ad] Endereço:Faculty of Agrotechnological Science, Autonomous University of Chihuahua, Pascual Orozco and Universidad, Campus I, 31200, Chihuahua, Mexico.
[Ti] Título:Simulation of arsenic retention in constructed wetlands.
[So] Source:Environ Sci Pollut Res Int;24(3):2394-2401, 2017 Jan.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The software RCB-arsenic was developed previously to simulate the metalloid behavior in a constructed wetland (CW). The model simulates water flow and reactive transport by contemplating the major processes of arsenic (As) retention inside of CW. The objective of this study was to validate the RCB-arsenic model by simulating the behavior of horizontal flow CW for As removal from water. The model validation was made using data from a 122-day experiment. Two CWs prototypes were used: one planted with Eleocharis macrostachya (CW_planted) and another one unplanted (CW_unplanted) as a control. The prototypes were fed with synthetic water prepared using well water and sodium arsenite (NaAsO ). In the RCB-arsenic model, a CW prototype was represented using a 2D mesh sized in accordance with the experiment. For simulation of As retention in CW, data addition was established in two stages that considered the mechanisms in the system: (1) aqueous complexation, precipitation/dissolution, and adsorption on granular media and (2) retention by plants: uptake (absorption) and rhizofiltration (adsorption). Simulation of As outlet (µg/L) in stage_1 was compared with CW_unplanted; the experimental mean was 40.79 ± 7.76 and the simulated 39.96 ± 6.32. As concentration (µg/L) in stage_2 was compared with CW_planted, the experimental mean was 9.34 ± 4.80 and the simulated 5.14 ± 0.72. The mass-balance simulation and experiment at 122 days of operation had a similar As retention rate (94 and 91%). The calibrated model RCB-arsenic adequately simulated the As retention in a CW; therefore, it constitutes a powerful tool of design.
[Mh] Termos MeSH primário: Arsênico
Purificação da Água/métodos
Zonas Úmidas
[Mh] Termos MeSH secundário: Adsorção
Arsenitos
Eleocharis
Plantas
Compostos de Sódio
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arsenites); 0 (Sodium Compounds); 0 (Water Pollutants, Chemical); 48OVY2OC72 (sodium arsenite); N712M78A8G (Arsenic)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171104
[Lr] Data última revisão:
171104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161106
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-016-7989-y


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[PMID]:27916965
[Au] Autor:Li YX; Pan YG; He FP; Yuan MQ; Li SB
[Ad] Endereço:College of Food, Hainan University, Haikou 570228, China. lisa19910@163.com.
[Ti] Título:Pathway Analysis and Metabolites Identification by Metabolomics of Etiolation Substrate from Fresh-Cut Chinese Water Chestnut (Eleocharis tuberosa).
[So] Source:Molecules;21(12), 2016 Dec 01.
[Is] ISSN:1420-3049
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Fresh-cut Chinese water chestnuts (CWC) turn yellow after being peeled, reducing their shelf life and commercial value. Metabolomics, the systematic study of the full complement of small molecular metabolites, was useful for clarifying the mechanism of fresh-cut CWC etiolation and developing methods to inhibit yellowing. In this study, metabolic alterations associated with etiolation at different growth stages (0 day, 2 days, 3 days, 4 days, 5 days) from fresh-cut CWC were investigated using LC-MS and analyzed by pattern recognition methods (principal component analysis (PCA), partial least squares-discriminant analysis (PLS-DA), and orthogonal projection to latent structures-discriminant analysis (OPLS-DA)). The metabolic pathways of the etiolation molecules were elucidated. The main metabolic pathway appears to be the conversion of phenylalanine to -coumaroyl-CoA, followed by conversion to naringenin chalcone, to naringenin, and naringenin then following different pathways. Firstly, it can transform into apigenin and its derivatives; secondly, it can produce eriodictyol and its derivatives; and thirdly it can produce dihydrokaempferol, quercetin, and myricetin. The eriodictyol can be further transformed to luteolin, cyanidin, dihydroquercetin, dihydrotricetin, and others. This is the first reported use of metabolomics to study the metabolic pathways of the etiolation of fresh-cut CWC.
[Mh] Termos MeSH primário: Eleocharis/metabolismo
Estiolamento/fisiologia
Metaboloma/fisiologia
Metabolômica
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170407
[Lr] Data última revisão:
170407
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161206
[St] Status:MEDLINE


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[PMID]:27716802
[Au] Autor:Cheng L; Li S; Chen S; Wang Y; Yu M; Chen X; Li L; Yin J
[Ad] Endereço:School of Horticulture and Plant Protection of Yangzhou University, Yangzhou, Jiangsu 225009, People's Republic of China.
[Ti] Título:Transcriptome Analysis of Gene Expression during Chinese Water Chestnut Storage Organ Formation.
[So] Source:PLoS One;11(10):e0164223, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The product organ (storage organ; corm) of the Chinese water chestnut has become a very popular food in Asian countries because of its unique nutritional value. Corm formation is a complex biological process, and extensive whole genome analysis of transcripts during corm development has not been carried out. In this study, four corm libraries at different developmental stages were constructed, and gene expression was identified using a high-throughput tag sequencing technique. Approximately 4.9 million tags were sequenced, and 4,371,386, 4,372,602, 4,782,494, and 5,276,540 clean tags, including 119,676, 110,701, 100,089, and 101,239 distinct tags, respectively, were obtained after removal of low-quality tags from each library. More than 39% of the distinct tags were unambiguous and could be mapped to reference genes, while 40% were unambiguous tag-mapped genes. After mapping their functions in existing databases, a total of 11,592, 10,949, 10,585, and 7,111 genes were annotated from the B1, B2, B3, and B4 libraries, respectively. Analysis of the differentially expressed genes (DEGs) in B1/B2, B2/B3, and B3/B4 libraries showed that most of the DEGs at the B1/B2 stages were involved in carbohydrate and hormone metabolism, while the majority of DEGs were involved in energy metabolism and carbohydrate metabolism at the B2/B3 and B3/B4 stages. All of the upregulated transcription factors and 9 important genes related to product organ formation in the above four stages were also identified. The expression changes of nine of the identified DEGs were validated using a quantitative PCR approach. This study provides a comprehensive understanding of gene expression during corm formation in the Chinese water chestnut.
[Mh] Termos MeSH primário: Eleocharis/genética
Regulação da Expressão Gênica de Plantas/genética
Expressão Gênica/genética
Genes de Plantas/genética
Transcriptoma/genética
[Mh] Termos MeSH secundário: Mapeamento Cromossômico/métodos
Regulação para Baixo/genética
Etiquetas de Sequências Expressas
Perfilação da Expressão Gênica/métodos
Biblioteca Gênica
Regulação para Cima/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170620
[Lr] Data última revisão:
170620
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161008
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0164223


  5 / 61 MEDLINE  
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[PMID]:27603811
[Au] Autor:Zhan G; Pan L; Tu K; Jiao S
[Ad] Endereço:College of Food Science and Technology, Nanjing Agricultural Univ, Nanjing, Jiangsu, China.
[Ti] Título:Antitumor, Antioxidant, and Nitrite Scavenging Effects of Chinese Water Chestnut (Eleocharis dulcis) Peel Flavonoids.
[So] Source:J Food Sci;81(10):H2578-H2586, 2016 Oct.
[Is] ISSN:1750-3841
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The preparation, quantification, and characterization of flavonoid compounds from Chinese water chestnut peel (CWCP) flavonoid extract and ethyl acetate fraction (EF), n-butanol fraction, and water fraction were studied. Among these, EF showed the maximum free radical levels (IC values of 0.36, 0.40, and 0.37 mg/mL for DPPH•, ABTS• , and •OH, respectively), nitrite scavenging effects (IC = 1.89 mg/mL), and A549 cell inhibitory activities (IC = 776.12 µg/mL) with the highest value of total flavonoid content (TFC, 421.32 mg/g). Moreover, the contents of 8 flavonoids in this fraction were quantified using high-performance liquid chromatography, and fisetin, diosmetin, luteolin, and tectorigenin were the 4 major flavonoids with levels of 31.66, 29.91, 13.69, and 12.41 mg/g, respectively. Luteolin produced a greater inhibition of human lung cancer A549 cells (IC = 59.60 µg/mL) than did fisetin, diosmetin, and tectorigenin. Flow cytometry revealed that the cellular mechanisms of luteolin inhibition of A549 cells were achieved via the induction of cell proliferation arrest at G phase and apoptosis/necrosis. Our findings suggest that flavonoids are closely associated with antitumor, antioxidant, and nitrite scavenging effects of CWCP.
[Mh] Termos MeSH primário: Antioxidantes/análise
Eleocharis/química
Flavonoides/análise
Nitritos/química
[Mh] Termos MeSH secundário: Células A549
Antineoplásicos/química
Benzotiazóis/química
Compostos de Bifenilo/química
Desenho de Drogas
Ensaios de Seleção de Medicamentos Antitumorais
Medicamentos de Ervas Chinesas/farmacologia
Flavonoides/química
Análise de Alimentos
Radicais Livres
Seres Humanos
Radical Hidroxila/química
Concentração Inibidora 50
Isoflavonas/química
Fenóis/análise
Picratos/química
Extratos Vegetais/farmacologia
Ácidos Sulfônicos/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antineoplastic Agents); 0 (Antioxidants); 0 (Benzothiazoles); 0 (Biphenyl Compounds); 0 (Drugs, Chinese Herbal); 0 (Flavonoids); 0 (Free Radicals); 0 (Isoflavones); 0 (Nitrites); 0 (Phenols); 0 (Picrates); 0 (Plant Extracts); 0 (Sulfonic Acids); 28752-68-3 (2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid); 3352-57-6 (Hydroxyl Radical); 855130H9CO (tectorigenin); DFD3H4VGDH (1,1-diphenyl-2-picrylhydrazyl); OO2ABO9578 (fisetin); TWZ37241OT (diosmetin)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160908
[St] Status:MEDLINE
[do] DOI:10.1111/1750-3841.13434


  6 / 61 MEDLINE  
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[PMID]:27459279
[Au] Autor:Tang XT; Zheng FS; Qin J; Lu MX; Du YZ
[Ad] Endereço:School of Horticulture and Plant Protection & Institute of Applied Entomology, Yangzhou University, Yangzhou 225009, China.
[Ti] Título:Genetic Structure of Water Chestnut Beetle: Providing Evidence for Origin of Water Chestnut.
[So] Source:PLoS One;11(7):e0159557, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Water chestnut beetle (Galerucella birmanica Jacoby) is a pest of the water chestnut (Trapa natans L.). To analyze the phylogeny and biogeography of the beetle and provide evidence for the origin of T. natans in China, we conducted this by using three mitochondrial genes (COI, COII and Cytb) and nuclear ITS2 ribosomal DNA of G. birmanica. As for mtDNA genes, the beetle could be subdivided into three groups: northeastern China (NEC), central-northern-southern China (CC-NC-SC) and southwestern China (SWC) based on SAMOVA, phylogenetic analyses and haplotype networks. But for ITS2, no obvious lineages were obtained but individuals which were from NEC region clustered into one clade, which might be due to sequence conservation of ITS2. Significant genetic variation was observed among the three groups with infrequent gene flow between groups, which may have been restricted due to natural barriers and events in the Late Pleistocene. Based on our analyses of genetic variation in the CC-NC-SC geographical region, the star-like haplotype networks, approximate Bayesian computation, niche modelling and phylogeographic variation of the beetle, we concluded that the beetle population has been lasting in the lower, central reaches of the Yangtze River Basin with its host plant, water chestnut, which is consistent with archaeological records. Moreover, we speculate that the CC-NC-SC population of G. birmanica may have undergone a period of expansion coincident with domestication of the water chestnut approximately 113,900-126,500 years ago.
[Mh] Termos MeSH primário: Coleópteros/genética
Eleocharis
Estruturas Genéticas
[Mh] Termos MeSH secundário: Animais
Teorema de Bayes
China
Coleópteros/classificação
DNA Intergênico
Fluxo Gênico
Genes Mitocondriais
Variação Genética
Genética Populacional
Filogenia
Filogeografia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Intergenic)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160727
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0159557


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[PMID]:27115849
[Au] Autor:Huang HC; Chao CL; Liaw CC; Hwang SY; Kuo YH; Chang TC; Chao CH; Chen CJ; Kuo YH
[Ad] Endereço:Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University , Taichung 404, Taiwan.
[Ti] Título:Hypoglycemic Constituents Isolated from Trapa natans L. Pericarps.
[So] Source:J Agric Food Chem;64(19):3794-803, 2016 May 18.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Trapa natans L., called water chestnut or water caltrop, is a floating aquarium plant. Its fruits are widely used as food. Two new tannins, 1 and 2, one new neolignan, 14, one new norlignan, 17, and 20 known compounds, 3-13, 15, 16, and 18-24 were isolated from T. natans pericarps in this study. The 1, 2, 14, and 17 structures were elucidated using a chemical method and extensive spectral evidence. A series of hydrolyzable tannins, 1-8, a lignin, 13, a flavonoid, 16, a norlignan, 17, and phenolic compounds, 18, 20, 21, and 24 resulted in the enhanced glucose uptake activity in C2C12 myotubes. Compounds 4 and 5 significantly increased GLUT4 protein expression in C2C12 myotubes. In addition, 4 and 5 improved the phosphorylation of AMPK, AKT(S473), and AKT(T308). The involvement of AMPK and PI3K in the mechanism of action of compounds 4 and 5 was confirmed by use of AMPK and PI3K inhibitors, which completely suppressed the 4- and 5-mediated activities of glucose uptake in C2C12 myotubes. We also demonstrated that 4 and 5 could increase GLUT4 protein levels in plasma membranes.
[Mh] Termos MeSH primário: Eleocharis/química
Hipoglicemiantes/uso terapêutico
[Mh] Termos MeSH secundário: Adenilato Quinase/metabolismo
Animais
Linhagem Celular
Cromatografia Líquida de Alta Pressão
Glucose/metabolismo
Camundongos
Fosfatidilinositol 3-Quinases/metabolismo
Proteínas Proto-Oncogênicas c-akt/metabolismo
Análise Espectral/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hypoglycemic Agents); EC 2.7.1.- (Phosphatidylinositol 3-Kinases); EC 2.7.11.1 (Proto-Oncogene Proteins c-akt); EC 2.7.4.3 (Adenylate Kinase); IY9XDZ35W2 (Glucose)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170217
[Lr] Data última revisão:
170217
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160427
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.6b01208


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[PMID]:26939740
[Au] Autor:Rivera-Cruz Mdel C; Trujillo-Narcía A; Trujillo-Rivera EA; Arias-Trinidad A; Mendoza-López MR
[Ad] Endereço:a Laboratorio de Microbiología Ambiental, Colegio de Postgraduados , Periférico Carlos A. Molina s/n, H. Cárdenas , Tabasco , México.
[Ti] Título:Natural attenuation of weathered oil using aquatic plants in a farm in Southeast Mexico.
[So] Source:Int J Phytoremediation;18(9):877-84, 2016 Sep.
[Is] ISSN:1549-7879
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:An experiment was conducted in field for three years to assess the sustainability of aquatic plants Leersia hexandra, Cyperus articulatus, and Eleocharis palustris for use in the removal of total hydrocarbons of weathered oil in four areas contaminated with 60916-119373 mg/kg of hydrocarbons. The variables evaluated were coverage of plant, dry matter, density of plant growth-promoting rhizobacteria, and the removal of total weathered oil. The variables showed statistical differences (p = 0.05) due to the effects of time and the amount of oil in the soil. The three aquatic plants survived on the farm during the 36-month evaluation. The grass L. hexandra yielded the greatest coverage of plant but was inhibited by the toxicity of the oil, which, in contrast, stimulated the coverage of C. articulatus. The rhizosphere of L. hexandra in control soil was more densely colonized by N-fixing bacteria, while the density of phosphate and potassium solubilizing rhizobacteria was stimulated by exposure to oil. C. articulatus coverage showed positive relationship with the removal of weathered oil; positive effect between rhizosphere and L. hexandra grass coverage was also identified. These results contributed to the removal of weathered oil in Gleysols flooded and affected by chronic discharges of crude oil.
[Mh] Termos MeSH primário: Cyperus/metabolismo
Eleocharis/metabolismo
Petróleo/metabolismo
Poaceae/metabolismo
Poluentes do Solo/metabolismo
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Fazendas
México
Rizosfera
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Petroleum); 0 (Soil Pollutants)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170406
[Lr] Data última revisão:
170406
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160305
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2016.1156632


  9 / 61 MEDLINE  
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[PMID]:26868551
[Au] Autor:Li Q; Shi X; Zhao Q; Cui Y; Ouyang J; Xu F
[Ad] Endereço:Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China.
[Ti] Título:Effect of cooking methods on nutritional quality and volatile compounds of Chinese chestnut (Castanea mollissima Blume).
[So] Source:Food Chem;201:80-6, 2016 Jun 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This study aimed to evaluate the effects of different cooking methods on the content of important nutrients and volatiles in the fruit of Chinese chestnut. The nutritional compounds, including starch, water-soluble protein, free amino acids, reducing sugar, sucrose, organic acids and total flavonoids, of boiled, roasted and fried chestnuts were significantly (P<0.05) lower than those of fresh chestnuts after cooking, while the amylose, fat, crude protein and total polyphenol content varied slightly (P>0.05). L-Aspartic acid, L-glutamic acid and L-arginine were found to be the main reduced free amino acids in cooked chestnuts. The main aromatic compositions in fresh chestnuts were aldehydes and esters, while ketones, furfural and furan were formed in cooked chestnuts due to the Maillard reaction and degradation of saccharides, amino acids and lipids. Principle component analysis demonstrated that roasting and frying had a similar effect on the nutritional composition of chestnuts, which differed from that of the boiling process.
[Mh] Termos MeSH primário: Culinária/métodos
Eleocharis/química
Frutas/química
Valor Nutritivo
[Mh] Termos MeSH secundário: Flavonoides/análise
Reação de Maillard
Compostos Orgânicos Voláteis
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Flavonoids); 0 (Volatile Organic Compounds)
[Em] Mês de entrada:1611
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160213
[St] Status:MEDLINE


  10 / 61 MEDLINE  
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[PMID]:26757242
[Au] Autor:Kim JM; Lee JG; Yun SH; So KK; Ko YH; Kim YH; Park SM; Kim DH
[Ad] Endereço:1 Department of Bio-Environmental Chemistry, Institute of Life Science and Natural Resources, Wonkwang University, Iksan, Chonbuk 570-749, Korea;
[Ti] Título:A Mutant of the Bck1 Homolog from Cryphonectria parasitica Resulted in Sectorization with an Impaired Pathogenicity.
[So] Source:Mol Plant Microbe Interact;29(4):268-76, 2016 Apr.
[Is] ISSN:0894-0282
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:CpBck1, an ortholog of the cell-wall integrity mitogen-activated protein kinase kinase kinase of Saccharomyces cerevisiae, was cloned and characterized from the chestnut blight fungus Cryphonectria parasitica. The CpBck1-null mutant displayed cell wall integrity-related phenotypic changes such as abnormal cell morphology and wall formation and hypersensitivity to cell wall-disrupting agents. In addition, the mutant showed severely retarded growth without any sign of normal development, such as hyphal differentiation, conidiation, or pigmentation. As the culture proceeded, the mutant colony showed sporadic sectorization. Once sectored, the sectored phenotype of robust mycelial growth without differentiation was stably inherited. Compared with the wild type, both the parental CpBck1-null mutant and the sectored progeny exhibited marked impaired virulence. The present study revealed that a mutation in a signaling pathway component related to cell-wall integrity resulted in sporadic sectorization and these sectored phenotypes were stably inherited, suggesting that this signal transduction pathway is implicated in adaptive genetic changes for sectorization.
[Mh] Termos MeSH primário: Ascomicetos/genética
Eleocharis/microbiologia
MAP Quinase Quinase Quinases/genética
Doenças das Plantas/microbiologia
Transdução de Sinais
[Mh] Termos MeSH secundário: Ascomicetos/patogenicidade
Ascomicetos/ultraestrutura
Parede Celular/metabolismo
Eleocharis/imunologia
Proteínas Fúngicas/genética
Proteínas Fúngicas/metabolismo
Regulação Fúngica da Expressão Gênica
Hifas
MAP Quinase Quinase Quinases/metabolismo
Fenótipo
Casca de Planta/imunologia
Casca de Planta/microbiologia
Doenças das Plantas/imunologia
Análise de Sequência de DNA
Deleção de Sequência
Virulência
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Fungal Proteins); EC 2.7.11.25 (MAP Kinase Kinase Kinases)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:160407
[Lr] Data última revisão:
160407
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160113
[St] Status:MEDLINE
[do] DOI:10.1094/MPMI-08-15-0185-R



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