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首页> 外文期刊>Plant Growth Regulation: An International Journal on Natural and Synthetic Regulators >Morpho-anatomical and physiological responses to waterlogging stress in different barley (Hordeum vulgare L.) genotypes
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Morpho-anatomical and physiological responses to waterlogging stress in different barley (Hordeum vulgare L.) genotypes

机译：不同大麦（Hordeum Vulgare L.）基因型对涝渍压力的形态学和生理反应

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摘要

Waterlogging is one of the major stresses limiting crop production worldwide. The understanding of the mechanisms of plant adaptations to waterlogging stress helps improve plant tolerance to stress. In this study, physiological responses and morpho-anatomical adaptations of seven different barley genotypes were investigated under waterlogging stress. The results showed that the waterlogging-tolerant varieties (TX9425, Yerong, TF58) showed less reduction in plant height, SPAD (soil-plant analyses development analyses) value, tillers, shoot and root biomasses than did the waterlogging-sensitive varieties (Franklin, Naso Nijo, TF57). Under waterlogging stress condition, the tolerant genotypes also showed a much larger number of adventitious roots than did the sensitive genotypes. More intercellular spaces and better integrated chloroplast membrane structures were observed in the leaves of the waterlogging-tolerant cultivars, which is likely due to increased ethylene content, decreased ABA content and less accumulation of O-2 (.-). The ability to form new adventitious roots and intercellular spaces in shoots can also be used as selection criteria in breeding barley for waterlogging tolerance.
机译：Waterlogging是全球范围内限制作物生产的主要原因之一。理解植物适应对涝盐应激的机制有助于改善植物耐受性的耐受性。在本研究中，在涝渍应力下研究了七种不同的大麦基因型的生理反应和杂色解剖改编。结果表明，耐水性耐用的品种（TX9425，YERONG，TF58）显示出植物高度降低，植物高度降低，SPAD（土壤 - 植物分析开发分析）价值，分蘖，芽和根生物量比涝敏感品种（富兰克林， Naso Nijo，TF57）。在涝渍应激条件下，耐受性基因型也显示出比敏感基因型更大的不定根数量更大。在耐水性品种的叶片中观察到更多的细胞间空间和更好的整合叶绿体膜结构，这可能是由于乙烯含量增加，降低了ABA含量和O-2的积累量。在射击中形成新的外来根部和细胞间隙的能力也可以用作繁殖大麦的选择标准，用于涝盐耐受性。

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  • 作者

    Luan Haiye; Guo Baojian; Pan Yuhan; Lv Chao; Shen Huiquan; Xu Rugen;

  • 作者单位

    Yangzhou Univ Jiangsu Key Lab Crop Genet &

    Physiol Coinnovat Ctr Modern Prod Technol Grain Crops Key Lab Plant Funct Genom Minist Educ Barley Res Wenhui East Rd 48 Yangzhou 225009 Jiangsu Peoples R China;

    Yangzhou Univ Jiangsu Key Lab Crop Genet &

    Physiol Coinnovat Ctr Modern Prod Technol Grain Crops Key Lab Plant Funct Genom Minist Educ Barley Res Wenhui East Rd 48 Yangzhou 225009 Jiangsu Peoples R China;

    Yangzhou Univ Jiangsu Key Lab Crop Genet &

    Physiol Coinnovat Ctr Modern Prod Technol Grain Crops Key Lab Plant Funct Genom Minist Educ Barley Res Wenhui East Rd 48 Yangzhou 225009 Jiangsu Peoples R China;

    Yangzhou Univ Jiangsu Key Lab Crop Genet &

    Physiol Coinnovat Ctr Modern Prod Technol Grain Crops Key Lab Plant Funct Genom Minist Educ Barley Res Wenhui East Rd 48 Yangzhou 225009 Jiangsu Peoples R China;

    Inst Agr Sci Jiangsu Coastal Areas Yancheng 224002 Peoples R China;

    Yangzhou Univ Jiangsu Key Lab Crop Genet &

    Physiol Coinnovat Ctr Modern Prod Technol Grain Crops Key Lab Plant Funct Genom Minist Educ Barley Res Wenhui East Rd 48 Yangzhou 225009 Jiangsu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 作物生理学;
  • 关键词

    Barley (Hordeum vulgare L.); Waterlogging; Adventitious root; Leaf aerenchyma; Chloroplast ultrastructure;

    机译：大麦（Hordeum Vulgare L.）;涝渍;不定根;叶蕨类植物;叶绿体超微结构;

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