https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2015, Vol. 42 ›› Issue (4): 785-790.doi: 10.16420/j.issn.0513-353x.2014-0998

• 研究报告 • 上一篇    下一篇

缺硼对四季萝卜矿质元素吸收及叶片pH值的影响

从心黎,黄绵佳,江行玉,李新国,周开兵,钟曼茜   

  1. 1海南大学园艺园林学院,海口 570228;2海南大学农学院,海口 570228
  • 出版日期:2015-04-25 发布日期:2015-04-25
  • 基金资助:
    海南大学中西部计划学科建设项目(ZXBJH-XK008);海南省产学研一体化专项(CXY20130029);海南大学热带作物种质资源保护与开发利用教育部重点实验室开放基金项目(2012hckled-12)

Effects of Boron Deficiency on the Uptake of Mineral Elements and pH Value of Leaves in Cherry Radish

CONG Xin-li1,HUANG Mian-jia1,*,JIANG Xing-yu2,*,LI Xin-guo1,ZHOU Kai-bing1,and ZHONG Man-xi1   

  1. 1College of Horticulture and Gardening,Hainan University,Haikou 570228,China;2College of Agriculture,Hainan University,Haikou 570228,China
  • Online:2015-04-25 Published:2015-04-25

摘要: 为揭示缺硼影响矿质元素吸收的机理,以四季萝卜为试验材料,通过设置营养液缺硼(不含硼元素)、正常供硼(含硼46.3 μmol ? L-1)两个处理,测定缺硼处理21 d时肉质根、新叶和老叶等部位硼含量及Fe、Cu等矿质元素的含量;并利用甲苯胺蓝–O(TBO)染色叶片切片,观察叶片酸度的变化。结果表明,缺硼使四季萝卜肉质根和叶片细胞壁的结合硼含量显著下降,而Fe、Mn、Zn、Cu含量显著增加。缺硼还造成叶片pH值下降,嗜碱性颗粒减少。因此,缺硼可能通过影响细胞壁稳定性,导致叶片的结构和成分发生改变,使叶片pH值下降,从而促进了对其它矿质元素的吸收。

关键词: 四季萝卜, 硼, 叶片pH, 矿质元素

Abstract: To investigate the effect of boron(B)deficiency on the uptake of some nutrient elements. In this paper,cherry radishes(Raphanus sativus L. var. radiculus Pers)was grown in water containing 0 or 46.3 μmol ? L-1 boric acid to study the contents of boron and other main mineral elements in the fleshy root,young and old leaves,using HPLC method. The leaves were cut and stained by toluidine blue-O(TBO)and the anatomic structures were observed under light microscopes. We found that total boron,soluble boron,and cell wall binding boron decreased dramatically in all parts of the cherry radish grown in boron-lack condition,while the contents of Fe,Mn,Zn,Cu increased significantly. Boron deficiency also decreased the pH values and basophilic granules in leaves. These suggest that irregular cell walls as a result of B deficiency severely affect the structure and components of leaves,and the decreased pH of leaves can induce the absorption of other mineral elements.

Key words: cherry radish, boron;pH of leaf, mineral element

中图分类号: