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Texto completo SciELO Chile
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Id: biblio-950715
Autor: Sytar, Oksana; Borankulova, Asel; Hemmerich, Irene; Rauh, Cornelia; Smetanska, Iryna.
Título: Effect of chlorocholine chlorid on phenolic acids accumulation and polyphenols formation of buckwheat plants
Fonte: Biol. Res;47:1-7, 2014. graf, tab.
Idioma: en.
Resumo: BACKGROUND: Effect of chlorocholine chloride (CCC) on phenolic acids composition and polyphenols accumulation in various anatomical parts (stems, leaves and inflorescences) of common buckwheat (Fagopyrum esculentum Moench) in the early stages of vegetation period were surveyed. RESULTS: Treatment of buckwheat seeds with 2% of CCC has been increased content of total phenolics in the stems, leaves and inflorescences. On analyzing the different parts of buckwheat plants, 9 different phenolic acids - vanilic acid, ferulic acid, trans-ferulic acid, chlorogenic acid, salycilic acid, cinamic acid, p-coumaric acid, p-anisic acid, methoxycinamic acid and catechins were identified. The levels of identified phenolic acids varied not only significantly among the plant organs but also between early stages of vegetation period. Same changes as in contents of chlorogenic acid, ferulic acid, trans-ferulic acid were found for content of salycilic acid. The content of these phenolic acids has been significant increased under effect of 2% CCC treatment at the phase I (formation of buds) in the stems and at the phase II (beginning of flowering) in the leaves and then inflorescences respectively. The content of catechins as potential buckwheat antioxidants has been increased at the early stages of vegetation period after treatment with 2% CCC. CONCLUSIONS: The obtained results suggest that influence of CCC on the phenolics composition can be a result of various mechanisms of CCC uptake, transforming and/or its translocation in the buckwheat seedlings.
Descritores: Clormequat/farmacologia
Fagopyrum/efeitos dos fármacos
Sementes/efeitos dos fármacos
Ácido Clorogênico/análise
Cromatografia Líquida de Alta Pressão
Compostos de Tungstênio
Caules de Planta/efeitos dos fármacos
Caules de Planta/metabolismo
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/metabolismo
Fagopyrum/crescimento & desenvolvimento
Ácidos Cumáricos/análise
Inflorescência/efeitos dos fármacos
Éteres de Hidroxibenzoatos/análise
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: CL1.1 - Biblioteca Central

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Id: biblio-1052010
Autor: Wu, Qi; Zhao, Gang; Bai, Xue; Zhao, Wei; Xiang, Dabing; Wan, Yan; Wu, Xiaoyong; Sun, Yanxia; Tan, Maoling; Peng, Lianxin; Zhao, Jianglin.
Título: Characterization of the transcriptional profiles in common buckwheat (Fagopyrum esculentum) under PEG-mediated drought stress
Fonte: Electron. j. biotechnol;39:42-51, may. 2019. graf, tab.
Idioma: en.
Projeto: Education Department of Sichuan Province; . National Natural Science Foundation of China; . Sichuan Science and Technology Program; . Agriculture Research System of China; . Chengdu University Research Fund.
Resumo: BACKGROUND: Common buckwheat (Fagopyrum esculentum) is an important staple food crop in southwest China, where drought stress is one of the largest limiting factors that lead to decreased crop production. To reveal the molecular mechanism of common buckwheat in response to drought stress, we performed a comprehensive transcriptomics study to evaluate gene expression profiles of common buckwheat during PEG-mediated drought treatment. RESULTS: In total, 45 million clean reads were assembled into 53,404 unigenes with an average length of 749 bp and N50 length of 1296 bp. A total of 1329 differentially expressed genes (DEGs) were identified by comparing wellwatered and drought-treated plants, out of which 666 were upregulated and 663 were downregulated. Furthermore, we defined the functional characteristics of DEGs using GO and KEGG classifications. GO enrichment analysis showed that the DEGs were significantly overrepresented in four categories, namely, "oxidoreductase activity," "oxidation­reduction process," "xyloglucan:xyloglucosyl transferase activity," and "apoplast." Using KEGG pathway analysis, a large number of annotated genes were overrepresented in terms such as "plant hormone signal transduction," "phenylpropanoid biosynthesis," "photosynthesis," and "carbon metabolism." Conclusions: These results can be further exploited to investigate the molecular mechanism of common buckwheat in response to drought treatment and could supply with valuable molecular sources for abiotic-tolerant elite breeding programs in the future.
Descritores: Estresse Fisiológico/genética
-Fatores de Transcrição
Transdução de Sinais
Expressão Gênica
Análise de Sequência de RNA
Proteínas de Ligação à Clorofila
Reação em Cadeia da Polimerase em Tempo Real
Responsável: CL1.1 - Biblioteca Central

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