您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Applications of Xerophytophysiology and Signal Transduction in Plant Production-Flower Qualities in Eustoma grandiflorum Were Improved by Sub-Irrigation

文献类型： 外文期刊

作者： Xu, Hui-Lian 1 ; Bai, Jianfang 1 ; Kawabata, Saneyuki 3 ; Chang, Tingting 4 ;

作者机构： 1.Univ Jinan, Sch Biol Sci & Technol, Jinan 250024, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Beijing 100097, Peoples R China

3.Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan

4.Hohai Univ, Coll Agr Sci & Engn, Nanjing 211100, Peoples R China

关键词： circadian clock; Eustoma grandiflorum; flower opening; mathematical model; oscillation; osmotic adjustment; PAL (phenylalanine ammonia-lyase); salicylic acid; turgor potential; xerophytophysiology

期刊名称：SUSTAINABILITY （ 影响因子：3.9； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 15 卷 2 期

页码：

收录情况： SCI

摘要： Relatively mild xerophytic or hardening treatments can induce healthy development of plants. In the present study, as one of xerophytophysiological applications, sub-irrigation was applied to a flower plant of Eustoma grandiflorum to confirm whether the sub-irrigation improved flowering quality in addition to plant growth and physiology. As shown by the results, long-term sub-irrigation induced osmotic adjustment, with osmolyte concentration increasing 32.8 osmol m(-3) (p <= 0.01), improved leaf photosynthetic activities, with more than 10% (p <= 0.05) increase in photosynthetic capacity, and promoted plant growth, with a shoot biomass increase by 27.5% (p <= 0.01) and a root increase by 50.5% (p <= 0.01). These improvements were attributed to turgor maintenance and cell water re-compartmentation into the symplasm, which were both the consequence of osmotic adjustment. The lower osmotic potential and lower relative leaf water potential at incipient plasmolysis suggested that plants in sub-irrigation plots might be more resistant to environmental stresses. Sub-irrigation also improved flower quality shown by increased anthocyanin concentration (16% up, p <= 0.01). Flower quality improvement might be attributed to up-regulation of the PAL gene, which could catalyze the synthesis of anthocyanins. PAL gene up-regulation might be associated with a concentration increase in salicylic acid (SA), which was suggested as a plant hormone for signaling. Sub-irrigation also affected the flower opening and closing oscillations with less changed opening size or oscillation amplitude. We adopted mathematical models and thoroughly analyzed dynamic changes in photosynthesis, plant growth, and flower opening oscillations. In conclusion, sub-irrigation was a feasible practice and could be used in E. grandiflorum culture to improve plant growth and flower opening quality.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台