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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Elevated gibberellin enhances lignin accumulation in celery (Apium graveolens L.) leaves
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Elevated gibberellin enhances lignin accumulation in celery (Apium graveolens L.) leaves

机译：吉布林素升高增强了芹菜（Apium Graveolens L.）叶子的木质素积累

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摘要

Gibberellin (GA) is a phytohormone of a biguanide compound that plays an important role throughout the life cycle of a plant. Lignin, a phenylalanine-derived aromatic polymer, can enhance the water transport function and structural resistance of cell walls. This function is also the core on biology of higher terrestrial plants. An appropriate lignin level is important to the quality of leafy vegetables, such as celery. The relationship between gibberellin levels and the occurrence of lignification has not been reported in celery. In this study, the leaf blades and petioles of celery cultivars Liuhe Huangxinqin' and Jinnan Shiqin' were used as materials, and different concentrations of exogenous gibberellin were applied to analyze the growth and lignin distribution of leaf blades and petioles. It was found that gibberellin treatment could influence the lignin content in celery leaves. Autofluorescence analysis under ultraviolet (UV) excitation showed that gibberellin treatment caused lignification of celery leaf tissue. The expression profiles of 12 genes related to lignin synthesis changed with the increase of gibberellin concentration. Our results showed that gibberellin played a significant role in the accumulation of lignin in the development of celery leaves. This provides a basis for further study on the regulation of lignin metabolism in plants and exerts a vital part in the application of plant growth regulators to production.
机译：Gibberellin（Ga）是双胍化合物的植物激素，在整个植物的生命周期中起着重要作用。木质素是一种苯丙氨酸衍生的芳族聚合物，可以增强水上传递函数和细胞壁的结构抗性。这种功能也是高级陆地植物生物学的核心。适当的木质素水平对于叶茂蔬菜的质量，例如芹菜。葛霉素水平与荨麻状语发生之间的关系尚未在芹菜中报告。在这项研究中，使用芹菜品种柳河黄新Qin'和晋南世芩'的叶片和叶柄作为材料，并应用了不同浓度的外源性吉布林蛋白来分析叶片和叶柄的生长和木质素分布。结果发现，吉林蛋白治疗可以影响芹菜叶中的木质素含量。紫外线（UV）激发下的自荧光分析表明，吉布林素治疗引起了芹菜叶组织的瘫痪。与木质素合成有关的12个基因的表达谱随比胃蛋白酶浓度的增加而变化。我们的研究结果表明，吉布林素在木质素积累在芹菜叶的发展中发挥了重要作用。这为进一步研究植物中木质素代谢的调控提供了进一步研究的基础，并对植物生长调节剂的生产进行了重要作用。

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    Duan Ao-Qi; Feng Kai; Wang Guang-long; Liu Jie-Xia; Xu Zhi-Sheng; Xiong Ai-Sheng;

  • 作者单位

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

    Nanjing Agr Univ State Key Lab Crop Genet &

    Germplasm Enhancement Coll Hort Nanjing 210095 Jiangsu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 细胞形态学;
  • 关键词

    Exogenous gibberellin; Lignin; Development; Leaves; Apium graveolens L;

    机译：外源性吉布林素;木质素;发展;叶子;apium graveolens l;

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