| 何家栋,吴强盛,邹英宁.外源过氧化氢对枳生长、侧根数和根系碳水化合物含量的影响[J].中国南方果树,2018,47(4): |
| 外源过氧化氢对枳生长、侧根数和根系碳水化合物含量的影响 |
| Effects of exogenous hydrogen peroxide on growth, lateral root number, and root carbohydrate contents of trifoliate orange seedings |
| 投稿时间：2017-12-31 修订日期：2018-01-06 |
| DOI： |
| 中文关键词: 过氧化氢 侧根数 可溶性糖 |
| 英文关键词:hydrogen peroxide lateral root number soluble sugar |
| 基金项目:湖北省教育厅科学技术研究重点项目(D20171304)；湖北省高等学校优秀中青年科技创新团队计划项目（T201604） |
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| 摘要点击次数: 1847 |
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| 中文摘要: |
| 研究不同浓度（0~1.25 μM）过氧化氢（H2O2）对枳实生苗生长、根系形态、侧根数、根系葡萄糖、果糖和蔗糖含量的影响。结果表明，与0 μM H2O2比较，只有外源0.25 μM H2O2显著提高了枳株高和叶片数，0.05 μM和0.25 μM H2O2显著提高了根系鲜重，0.05 μM、0.25 μM和1.25 μM H2O2均显著提高根系干重、形态和一级、二级、三级侧根数以及根系果糖、葡萄糖含量。其中，0.25 μM H2O2是促进效应最显著的。 |
| 英文摘要: |
| In this study, trifoliate orange (Poncirus trifoliata) seedings were treated by exogenous hydrogen peroxide (H2O2) with 0, 0.05, 0.25 and 1.25 μM to analyze its effect on growth, lateral root number, and root glucose, fructose and sucrose contents. Compared with 0 μM H2O2, exogenous application of 0.25 μM H2O2 only significantly increased plant height and leaf number, and 0.05 and 0.25μM H2O2 notably increased root fresh weight. All of 0.05 μM, 0.25 μM and 1.25 μM H2O2 notably increased root dry weight, morphology, and number of 1st, 2nd, and 3rd order lateral roots. Root fructose and glucose contents were markedly increased by all the H2O2 treatments. Thereinto, exogenous 0.25 μM H2O2 represented the best effects among these H2O2 treatments. |
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