JI Yuan-yuan,YANG Jing-hui,LI Jin-long,et al.Study on Plant Salt Tolerance of Six Species by a Rapid Method in vitro[J].Northern Horticulture,2014,38(12):53-56.
六种植物耐盐性的离体快速分析
- Title:
- Study on Plant Salt Tolerance of Six Species by a Rapid Method in vitro
- 文章编号:
- 1001-0009(2014)12-0053-04
- 分类号:
- Q 948.113
- 文献标志码:
- A
- 摘要:
- 以旱柳、垂柳、红叶杨、毛白杨、二色补血草、酸模为试材，通过盐碱地上植株的随机选择和叶片随机采样，对不同浓度盐胁迫处理的离体叶片细胞膜透性和细胞伤害率进行了分析，研究比较各种植物的耐盐性，以期为这些植物在盐碱地上的利用提供依据。结果表明：盐胁迫下的叶片细胞膜透性和细胞伤害率毛白杨大于红叶杨，当盐溶液浓度升高到4%时，毛白杨的膜透性比红叶杨高23个百分点；酸模略大于二色补血草1~5个百分点；旱柳和垂柳的差异较大，在盐胁迫浓度1%时，旱柳的细胞膜透性和细胞膜伤害率大于垂柳6个百分点，而在2%~6%的较高盐浓度下，旱柳这2项指标均小于垂柳3~10个百分点；根据盐胁迫下的叶片细胞膜透性和细胞膜伤害率分析，耐盐性为红叶杨>毛白杨，二色补血草>酸模，旱柳>垂柳；6种植物的耐盐性排序为：红叶杨>二色补血草>酸模>旱柳>垂柳>毛白杨。
- Abstract:
- Taking Salix matsudana Koidz,Salix babylonica,Populus deltoids,Populus tomentosa Carr,Limonium bicolor,Rumex acetosa Linn as test material,the salt tolerance of the plants were analyzed through random selection of plants and leaves in the saline land and by membrance permeability in vitro,in order to compare the salt tolerance of plants for the saline land’s greenery.The results showed that the membrance permeability and membrance injury rate of Populus tomentosa Carr was higher than Populus deltoids under salt stress.When the salt concentration reached 4%,the membrance permeability of Populus tomentosa Carr was 23 percentage point higher than Populus deltoids.Under salt stress,there were the same trend between membrane permeability and membrane injury rate of leaves of Limonium bicolor and Rumex acetosa Linn.Among them,the two indicators of Limonium bicolor was less than Rumex acetosa Linn 1~5 percentage point.The membrance permeability and membrance injury rate of Salix matsudana Koidz was stronger than Salix babylonica 6 percentage point under treatment of 1% NaCl.Higher salt concentrationof 2%~6% NaCl,the indicators in Salix matsudana Koidz was less than Salix babylonica 3~10 percentage point.According to the membrance permeability of leaves under salt stress,salt tolerance was Populus deltoids>Populus tomentosa Carr,Limonium bicolor>Rumex acetosa Linn,Salix matsudana Koidz>Salix babylonica,salt tolerance order of six kinds of plants was Populus deltoids>Limonium bicolor>Rumex acetosa Linn>Salix matsudana Koidz>Salix babylonica>Populus tomentosa Carr.
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备注/Memo
责任作者：杨静慧（1961-），女，博士，教授，现主要从事园艺植物栽培与抗逆生理及分子育种等研究工作。E-mail：ajinghuiyang2@yahoo.com.cn.
基金项目：国家农业科技成果转化资金资助项目（2012GB2A100015）。
收稿日期：2014-01-20