四川农业大学学报 ›› 2018, Vol. 36 ›› Issue (06): 778-784.doi: 10.16036/j.issn.1000-2650.2018.06.010

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野菜少花龙葵的硒富集特性研究

吴彩芳1, 鲍荣粉2, 廖慧苹3, 刘飘4, 孙静4, 廖明安1, 林立金4, *, 任纬5   

  1. 1. 四川农业大学园艺学院,成都 611130;
    2. 马龙县经济作物技术推广站,云南 曲靖 655199;
    3. 四川华胜农业股份有限公司,四川 绵竹 618200;
    4. 四川农业大学果蔬研究所,成都 611130;
    5. 四川省内江市农业科学院玉米研究所,四川 内江 641000
  • 收稿日期:2017-10-27 出版日期:2018-12-28 发布日期:2021-03-01
  • 通讯作者: 林立金, 博士, 副教授, 主要从事果树生理生态研究, E-mail:llj800924@qq.com。
  • 作者简介:吴彩芳,本科生。
  • 基金资助:
    四川省教育厅项目(17ZB0342)。

Selenium Accumulation Characteristics of Wild Vegetable Solanum photeinocarpum

WU Caifang1, BAO Rongfen2, LIAO Huiping3, LIU Piao4, SUN Jing4, LIAO Mingan1, LIN Lijin4, *, REN Wei5   

  1. 1. College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China;
    2. Malong Economic Crop Technology Promotion Station,Qujing 655199,Yunnan,China;
    3. Sichuan Huasheng Agricultural Co.,Ltd.,Mianzhu 618200,Sichuan, China;
    4. Institute of Pomology and Olericulture,Sichuan Agricultural University,Chengdu 611130,China;
    5. Institute of Maize Research,Neijiang Academy of Agricultural Sciences,Neijiang 641000,Sichuan,China
  • Received:2017-10-27 Online:2018-12-28 Published:2021-03-01

摘要: 【目的】为从野菜中筛选出硒富集较高的蔬菜,并对其硒富集特性进行鉴定。【方法】采用盆栽试验,以野菜为研究对象,对5种野菜(养心菜Sedum aizoon、灰灰菜Chenopodium album、马齿苋Portulaca oleracea、马兰Kalimeris indica和少花龙葵Solanum photeinocarpum)进行了硒富集特性的初步研究,发现少花龙葵具有较高的硒富集量,并对少花龙葵进行了进一步的硒浓度梯度鉴定。【结果】少花龙葵根系、茎秆、叶片及地上部分生物量随着土壤硒浓度的增加呈降低的趋势,但未表现出明显的毒害症状。随着土壤硒浓度的增加,少花龙葵各器官的硒含量呈增加的趋势,其大小顺序为:根系>叶片>茎秆>地上部分,其地上部分硒积累量则呈先增后降的趋势(最大值为151.03 μg/株);在土壤硒浓度为75 mg/kg时,少花龙葵地上部分硒含量为136.06 mg/kg,大于非硒富集植物的临界值(100 mg/kg)。少花龙葵叶绿素总量、净光合速率和可溶性蛋白含量随着土壤硒浓度的增加呈降低的趋势,而类胡萝卜素含量、气孔导度、胞间CO2浓度、蒸腾速率、SOD活性、POD活性和CAT活性呈先增后降的趋势。【结论】少花龙葵是一种硒富集量较高的野菜,且对硒具有较高的耐性。

关键词: 野菜, 少花龙葵, 硒富集, 生长

Abstract: 【Objective】 The aim of the study was to screen the high selenium (Se) accumulation vegetables from wild vegetables, and to identify its Se accumulation characteristics. 【Method】 A pot experiment was conducted to study the Se accumulation characteristics of five wild vegetables (Sedum aizoon, Chenopodium album, Portulaca oleracea, Kalimeris indica and Solanum photeinocarpum). S. photeinocarpum had the high Se accumulation. S. photeinocarpum was grown in different soil Se concentrations to further evaluate the Se accumulation characteristics. 【Result】 The root, stem, leaf and shoot biomasses of S. photeinocarpum decrease with an increase in soil Se concentrations. However, it did not show any obvious symptoms. Se contents in different organs of S. photeinocarpum increased with increasing soil Se concentrations, with an order of roots>leaves>stems>shoots. Se accumulation in shoots increased first and then decreased (the maximum values was 151.03 μg/plant). When soil Se concentration was 75 mg/kg, Se content in shoots of S. photeinocarpum (136.06 mg/kg) was greater than the critical value of non-Se-enriched plants (100 mg/kg). With an increase in soil Se concentrations, the total chlorophyll content, net photosynthetic rate and soluble protein content of S. photeinocarpum exhibited an decreasing trend, but carotenoid content, stomatal conductance, intercellular CO2 concentration, transpiration rate, SOD, POD and CAT activities increased first and then decreased. 【Conclusion】 S. photeinocarpum is a high Se accumulation wild vegetable and has high tolerance to Se.

Key words: wild vegetable, Solanum photeinocarpum, selenium accumulation, growth

中图分类号: 

  • S647