谷子苗期硒高效品种筛选及评价
CSTR:
作者:
作者单位:

1.杂粮种质资源创新与分子育种国家实验室(筹) / 山西农业大学,太原 030031;2.山西农业大学农学院,太谷 030801

作者简介:

研究方向为杂粮种质资源鉴定评价,E-mail: sxauxgf@126.com

通讯作者:

卢成达,研究方向为谷子高产高效栽培,E-mail: luchengdadeyouxiang@126.com

中图分类号:

基金项目:

山西省基础研究计划面上项目(20210302123364);杂粮种质资源创新与分子育种国家实验室(筹)自主研发项目(202204010910001-06);山西省回国留学人员科研资助项目(2021-071);山西省现代农业产业技术体系建设项目(杂粮)(2022-03)


Screening and Evaluation of Efficient Utilization of Selenium in Foxtail Millet at the Seedling Stage
Author:
Affiliation:

1.National Laboratory of Minor Crops Germplasm Innovation and Molecular Breeding (in preparation)/Shanxi Agricultural University, Taiyuan 030031;2.College of Agronomy, Shanxi Agricultural University, Taigu 030801

Fund Project:

Foundation projects: The Applied Basic Research Project of Shanxi Province (20210302123364);National Laboratory of Minor Crops Germplasm Innovation and Molecular Breeding (in preparation) (202204010910001-06);Shanxi Scholarship Council of China (2021-071);The Shanxi Agricultural Research System (Minor Crop) (2022-03)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    谷子是抗逆性强且营养价值丰富的粮饲兼用作物。硒是人体和动物必需的微量元素,适量的硒能促进作物生长发育和品质提升。本研究旨在探讨不同基因型的谷子苗期硒响应能力,建立筛选与评价体系。对具有代表性的205份谷子核心种质资源的苗高、叶面积、茎粗、地上鲜重、地下鲜重、根冠比、主根长、根系总体积、根尖数、地上部硒含量和地下部硒含量等11个指标的硒响应系数进行相关性分析,并采用隶属函数法综合评价不同品种的苗期硒响应能力,筛选硒高效与硒低效品种,在生理水平上分析其植株体内超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)的活性。结果表明,205份谷子种质资源可划分为5类,其中16份材料属于硒高效品种,45份材料属于硒较高效品种,60份属于硒中等效率品种,66份属于硒较低效品种,18份属于硒低效品种;施加0.5 mmol/L的亚硒酸钠使谷子植株SOD和POD酶活性增强,CAT酶活性降低。总之,以综合指标评价谷子苗期硒高效品种的方法更为客观,保护酶系统在谷子苗期硒响应中具有重要作用。

    Abstract:

    Foxtail millet (Setaria italica. L) is a vital crop that plants as food and fodder crop, with strong stress resistance and bundle of nutritional elements. Selenium (Se) is a component essential for human and animal cells, beneficial for plants growth and quality improvement. This study attempts to explore the ability of Se-responsive in foxtail millet and establish a corresponding evaluation system. We conducted the correlation analysis and principle component analysis based on 11 phenotypic indicators, including seedling height, leaf area, stem thickness, fresh weight of shoot, fresh weight of root, root length, total root length, root volume, apical number, shoot and root selenium content in 205 foxtail millet germplasm accessions. The membership function method was used to comprehensively evaluate the selenium responsiveness, and identify the genotypes showing Se efficient and Se deficient at the seedling stage. Furthermore, the enzymatic activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) in shoot were analyzed between Se efficient and deficient varieties. 205 foxtail millet varieties were grouped into five categories. There were 16 high Se-efficient responsiveness accessions, 45,60 and 66 with medium Se-efficient responsiveness accessions and 18 deficient accessions. Under 0.5 mmol/L Se treatment, the activities of SOD and POD were increased, whereas the activity of CAT was decreased. Collectively, the comprehensive index is more objective to evaluate the selenium efficient utilization of foxtail millet at the seedling stage, and the antioxidant enzymes activities of the plant are important for the responsiveness of foxtail millet to the Se treatment.

    参考文献
    相似文献
    引证文献
引用本文

邢国芳,侯颖,王浩,等.谷子苗期硒高效品种筛选及评价[J].植物遗传资源学报,2023,24(1):158-171.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-08-18
  • 最后修改日期:2022-09-18
  • 录用日期:
  • 在线发布日期: 2023-01-12
  • 出版日期: 2023-01-12
文章二维码
您是第位访问者
ICP:京ICP备09069690号-23
京ICP备09069690号-23
植物遗传资源学报 ® 2024 版权所有
技术支持:北京勤云科技发展有限公司