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| 海马齿对不同比例淡海水组培的生长和生理响应 | |
| 引用本文： | 张艳琳,范伟,蔡元保,张治礼. 海马齿对不同比例淡海水组培的生长和生理响应[J]. 西北植物学报, 2009, 29(6) |
| 作者姓名： | 张艳琳 范伟 蔡元保 张治礼 |
| 作者单位： | 1. 中国热带农业科学院,热带生物技术研究所,农业部热带作物生物技术重点开放实验室,海口,571101;海南大学,农学院,海口,570228 2. 中国热带农业科学院,热带生物技术研究所,农业部热带作物生物技术重点开放实验室,海口,571101;海南大学,园艺园林学院,海南儋州,571737 3. 中国热带农业科学院,热带生物技术研究所,农业部热带作物生物技术重点开放实验室,海口,571101;海南省农业科学院,海口,571100 |
| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目 |
| 摘 要： | 以红树林伴生植物海马齿为研究对象,通过水培试验系统考察了海马齿植株在不同淡海水组合培养条件下的生长和生理变化,以探讨海马齿植株盐环境的适应性和耐盐机制.结果显示,随着培养液中海水比例增加,海马齿植株生长速度变慢,节间变短,叶片肉质化程度加重,但都能健康生长并完成其固有的生长周期.随着培养液中海水比例的增加,海马齿植株叶片叶绿素含量、蛋白质含量以及节间长度均呈下降趋势,可溶性糖、脯氨酸含量和茎周长却逐渐增加,叶片水分含量和根系活力先升高后降低,而叶片干物质和丙二醛含量则呈先降低后升高趋势.2∶1淡/海水组合培养液中海马齿植株的长势最好,根系活力最强.研究结果表明,海马齿植株最适宜在一定比例的淡/海水培养液中或一定盐浓度环境下生长,其具有很强的耐盐碱特性,渗透调节是其适应外界盐胁迫的机制之一. |
| 关 键 词： | 海马齿 水培 耐盐性 生长和生理响应 |
Growth and Physiological Responses of Sesuvium portulacastrum to Hydroponics of Different Combinations of Fresh and Sea Water |
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| ZHANG Yan-lin,FAN Wei,CAI Yuan-bao,ZHANG Zhi-li. Growth and Physiological Responses of Sesuvium portulacastrum to Hydroponics of Different Combinations of Fresh and Sea Water[J]. Acta Botanica Boreali-Occidentalia Sinica, 2009, 29(6) | |
| Authors: | ZHANG Yan-lin FAN Wei CAI Yuan-bao ZHANG Zhi-li |
| Affiliation: | ZHANG Yan-lin1,2,FAN Wei1,3,CAI Yuan-bao1,ZHANG Zhi-li1,4 (1 Key Laboratory of Ministry of Agriculture for Tropical Biotechnology,Institute of Tropical Biosciences , Biotechnology,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China,2 College of Agriculture,Hainan University,Haikou 570228,3 College of Horticulture , L,scape,Danzhou,Hainan 571737,4 Hainan Academy of Agricultural Sciences,Haikou 571100,China) |
| Abstract: | In the condition of hydroponics of different combinations of fresh and sea water,the growth and physiological responses of Sesuvium portulacastrum,a mangrove associated plant species,were systematically examined,and its salt adaptability and salt-tolerant mechanism were primarily investigated.The results showed that with the increase of seawater proportion the growth rate of Sesuvium portulacastrum plants slew down,the internode became shorter and the leaves more fleshy,but all S.portulacastrum plants were ... |
| Keywords: | Sesuvium portulacastrum hydroponic salt-tolerance growth and physiological responses |
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