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首页> 外文期刊>Biomass & bioenergy >Genotypic and environmentally derived variation in the cell wall composition of Miscanthus in relation to its use as a biomass feedstock
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Genotypic and environmentally derived variation in the cell wall composition of Miscanthus in relation to its use as a biomass feedstock

机译：芒草细胞壁组成的基因型和环境相关变异与其用作生物质原料的关系

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摘要

Fifteen Miscanthus genotypes grown in five locations across Europe were analysed to investigate the influence of genetic and environmental factors on cell wall composition. Chemo-metric techniques combining near infrared reflectance spectroscopy (NIRS) and conventional chemical analyses were used to construct calibration models for determination of acid detergent lignin (ADL), acid detergent fibre (ADF), and neutral detergent fibre (NDF) from sample spectra. Results generated were subsequently converted to lignin, cellulose and hemicellulose content and used to assess the genetic and environmental variation in cell wall composition of Miscanthus and to identify genotypes which display quality traits suitable for exploitation in a range of energy conversion systems. The NIRS calibration models developed were found to predict concentrations with a good degree of accuracy based on the coefficient of determination (R~2), standard error of calibration (SEC), and standard error of cross-validation (SECV) values. Across all sites mean lignin, cellulose and hemicellulose values in the winter harvest ranged from 76-115 g kg (-1) 412-529 g kgkg (-1), and 235-338 g kgkg (-1) respectively. Overall, of the 15 genotypes Miscanthus x giganteus and Miscanthus sacchanflorus contained higher lignin and cellulose concentrations in the winter harvest. The degree of observed genotypic variation in cell wall composition indicates good potential for plant breeding and matching feedstocks to be optimised to different energy conversion processes.
机译：分析了欧洲五个地区生长的15种芒草基因型，以研究遗传和环境因素对细胞壁组成的影响。化学计量技术结合了近红外反射光谱（NIRS）和常规化学分析方法，用于构建用于从样品光谱中测定酸性洗涤剂木质素（ADL），酸性洗涤剂纤维（ADF）和中性洗涤剂纤维（NDF）的校准模型。随后将产生的结果转换为木质素，纤维素和半纤维素含量，并用于评估芒草细胞壁组成的遗传和环境变化，并鉴定出表现出适合在多种能量转换系统中利用的品质特征的基因型。根据确定的系数（R〜2），校准的标准误差（SEC）和交叉验证的标准误差（SECV）值，发现开发的NIRS校准模型可以很好地预测浓度。在所有站点中，冬季收成中的木质素，纤维素和半纤维素值分别为76-115 g kg（-1）412-529 g kgkg（-1）和235-338 g kgkg（-1）。总体而言，冬季收获期的15个基因型Miscanthus x giganteus和Miscanthus sacchanflorus含有较高的木质素和纤维素。在细胞壁组成中观察到的基因型变化的程度表明，植物育种和匹配原料被优化以适应不同能量转化过程的潜力很大。

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  • 来源
    《Biomass & bioenergy》 |2010年第5期|p.652-660|共9页
  • 作者

    Edward M. Hodgson; Susan J. Lister; Anthony V. Bridgwater; John Clifton-Brown; Iain S. Donnison;

  • 作者单位

    Institute of Biological, Environmental, and Rural Sciences, Aberystiuyth University, Gogerddan, Aberystiuyth, Ceredigion SY23 3EB, Wales, UK;

    rnInstitute of Biological, Environmental, and Rural Sciences, Aberystiuyth University, Gogerddan, Aberystiuyth, Ceredigion SY23 3EB, Wales, UK;

    rnSchool of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK;

    rnInstitute of Biological, Environmental, and Rural Sciences, Aberystiuyth University, Gogerddan, Aberystiuyth, Ceredigion SY23 3EB, Wales, UK;

    rnInstitute of Biological, Environmental, and Rural Sciences, Aberystiuyth University, Gogerddan, Aberystiuyth, Ceredigion SY23 3EB, Wales, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    plant cell wall; lignin; cellulose; hemicellulose; miscanthus; feedstock; fuel matching;

    机译：植物细胞壁木质素纤维素半纤维素;can原料;燃油匹配;

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