• ISSN 1008-505X
  • CN 11-3996/S
张德健, 夏仁学, 曹秀. 矿质养分和激素对根毛生长发育的影响及作用机制[J]. 植物营养与肥料学报, 2016, 22(3): 802-810. DOI: 10.11674/zwyf.14456
引用本文: 张德健, 夏仁学, 曹秀. 矿质养分和激素对根毛生长发育的影响及作用机制[J]. 植物营养与肥料学报, 2016, 22(3): 802-810. DOI: 10.11674/zwyf.14456
ZHANG De-jian, XIA Ren-xue, CAO Xiu. Effects and mechanism of mineral nutrient and phytohormone on root hair development[J]. Journal of Plant Nutrition and Fertilizers, 2016, 22(3): 802-810. DOI: 10.11674/zwyf.14456
Citation: ZHANG De-jian, XIA Ren-xue, CAO Xiu. Effects and mechanism of mineral nutrient and phytohormone on root hair development[J]. Journal of Plant Nutrition and Fertilizers, 2016, 22(3): 802-810. DOI: 10.11674/zwyf.14456

矿质养分和激素对根毛生长发育的影响及作用机制

Effects and mechanism of mineral nutrient and phytohormone on root hair development

  • 摘要: 【目的】植物矿质养分和水分的吸收利用赖于根系,根系中根毛的生长发育不仅扩大了根系吸收表面积,促进了矿质养分和水分的吸收还有助于植物根的固定以及与土壤微生物的互作。本文从矿质养分角度(氮、 磷、 钾、 钙、 铁)和激素角度(生长素、 乙烯、 茉莉酸、 独脚金内酯、 油菜素内酯)探讨影响根毛生长发育的因子及作用机理。【主要进展】氮对根毛生长发育的影响与茉莉酸和乙烯有关, 磷与生长素、 乙烯、 独脚金内酯互作调控根毛生长发育;生长素和乙烯以交互作用调控根毛生长发育,茉莉酸、 独角金内酯和油菜素甾醇对根毛生长发育的作用是部分依赖生长素或乙烯途径;植物体内生长素和乙烯等激素的平衡对根毛的生长发育起着重要作用。【建议和展望】基于以上分析,从蛋白激酶及其相关调控基因及转录因子等方面可深入探析矿质养分、 植物激素等对根毛和丛枝菌根生长发育的影响。

     

    Abstract: 【Objectives】 Root hairs are tubular projections from root epidermal cells. Their formation make a significant increase in root surface area, which play important roles in nutrients and water uptake, anchorage, and interaction with soil microorganisms. In this review, we discussed the effects of mineral nutrients (nitrogen, phosphorus, potssium, clacium, iron) and phytohormones (auxin, ethylene, jasmonic acid, strigolactone, brassinosteroids) on root hairs development and their relevant mechanisms. 【Major advances】 The effect of nitrogen on root hairs development is related to jasmonic acid and ethylene. Interaction existes between phosphorus and phytohormones (auxin, ethylene, strigolactone) on root hairs growth. The interaction between auxin and ethylene regulates root hairs development. The effects of jasmonic acid, strigolactone and brassinosteroids partly depend on the way of auxin and ethylene. The balance of auxin/ethylene maybe important on root hairs growth and development.【Suggestions and expectations】 On the basis of the above review, it is important to study the regulatory genes and transcription factors, which will be helpful to deeper understand the effects of mineral nutrient and phytohormone on arbuscular mycorrhizas and root hairs development.

     

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