[1]葛跃,孙向武,陈亚慧,等.叶面施磷对蓖麻生长、镉积累及亚细胞分布的影响[J].常州大学学报(自然科学版),2015,(04):85-90.[doi:10.3969/j.issn.2095-0411.2015.04.016]
　GE Yue,SUN Xiangwu,CHEN Yahui,et al.Effects of P Foliar Spraying on Plant Growth, Cd Accumulation and Subcellular Distribution in Ricinus Communis[J].Journal of Changzhou University(Natural Science Edition),2015,(04):85-90.[doi:10.3969/j.issn.2095-0411.2015.04.016]
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叶面施磷对蓖麻生长、镉积累及亚细胞分布的影响()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年04期
页码:
85-90
栏目:
环境科学与工程
出版日期:
2015-11-15

文章信息/Info

Title:
Effects of P Foliar Spraying on Plant Growth, Cd Accumulation and Subcellular Distribution in Ricinus Communis
作者:
葛跃; 孙向武; 陈亚慧; 赵兴青; 王明新
常州大学 环境与安全工程学院, 江苏 常州213164
Author(s):
GE Yue;  SUN Xiangwu;  CHEN Yahui;  ZHAO Xingqing;  WANG Mingxin
School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
关键词:
叶面施磷;  镉胁迫;  亚细胞分布;  镉积累;  蓖麻
Keywords:
phosphate;  Cd accumulation;  subcellular distribution;  physiological characterization;  Ricinuscommunis
分类号:
X 53
DOI:
10.3969/j.issn.2095-0411.2015.04.016
文献标志码:
A
摘要:
采用营养液培养试验,研究了在不同浓度镉(50、100和150 μmol·L-1)胁迫下,叶面喷施0.4%磷肥对蓖麻生理特性、镉积累及亚细胞分布的影响。结果表明,与未施磷处理相比,叶面施磷使蓖麻根、茎、叶生物量分别增加了23.2%～61.5%、31.2%～68.3%和14.7%～23.6%,叶绿素a、叶绿素b和类胡萝卜素含量分别增长了6.8%～78.0%、10.1%～84.1%和30.0%～52.1%。与未施磷处理相比,叶面施磷使根系中镉含量增大了25.0%～59.6%,显著提高了地下部对镉的积累量,茎、叶中镉含量无显著变化; 根、茎、叶中细胞壁中镉含量的分配比例显著增大,而细胞器分配比例则相对减少。可见,叶面施磷提高了植株细胞壁对镉的固持作用,降低了镉的迁移能力和生理毒性。
Abstract:
A hydroponic experiment was conducted to investigate the influence of foliar spraying of 0.4% phosphate fertilizer(P)on the physiological parameters, Cd accumulation and subcellular distribution characteristics in energy crop Ricinus communis with different Cd doses(50,100,150 μmol·L-1). The results showed that P spraying increases plant dry mass by 23.2%-61.5%, 31.2%-68.3% and 14.7%-23.6% in the roots, stems and leaves, respectively, and the chlorphyll a, chlorphyll b and carotenoid contents were increased by 6.8%-78.0%, 10.1%-84.1% and 30.0%-52.1%, respectively. Foliar spraying of P significantly increased Cd concentration in the roots by 25.0%-59.6%, but Cd contents in shoots and leaves showed no significant difference. The proportions of Cd in the cell wall increased, while that in cell organelle decreased. It is supposed that P addition can strengthen cell wall binding, so as to limit Cd translocation and reduce its physiological toxicity in plants.

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备注/Memo

备注/Memo:
收稿日期:2015-01-22。基金项目:江苏省高校自然科学研究项目(14KJB610001); 国家自然科学基金(41302025)。作者简介:葛跃(1991—),男,江苏徐州人,硕士生。通讯联系人:王明新(1979—),E-mail:wmx@cczu.edu.cn
更新日期/Last Update: 2015-10-20