植物生态学报 ›› 2017, Vol. 41 ›› Issue (7): 805-814.doi: 10.17521/cjpe.2017.0042

• 综述 • 上一篇    

根际氧含量影响植物生长的生理生态机制研究进展

郑小兰, 王瑞娇, 赵群法, 刘勇鹏, 王媛媛, 孙治强*()   

  1. 河南农业大学园艺学院, 郑州 450002
  • 收稿日期:2017-02-23 接受日期:2017-06-01 出版日期:2017-07-10 发布日期:2017-08-21
  • 通讯作者: 孙治强 E-mail:sunzhiqiang1956@sina.com
  • 作者简介:

    * 通信作者Author for correspondence (E-mail:sunzhiqiang1956@sina.com)

  • 基金资助:
    国家重点基础研究发展计划(2016YED0201008)

Ecophysiological mechanisms of plant growth under the influence of rhizosphere oxygen concentration: A review

Xiao-Lan ZHENG, Rui-Jiao WANG, Qun-Fa ZHAO, Yong-Peng LIU, Yuan-Yuan WANG, Zhi-Qiang SUN*()   

  1. Horticulture College of Henan Agricultural University, Zhengzhou 450002, China
  • Received:2017-02-23 Accepted:2017-06-01 Online:2017-07-10 Published:2017-08-21
  • Contact: Zhi-Qiang SUN E-mail:sunzhiqiang1956@sina.com
  • About author:

    KANG Jing-yao(1991-), E-mail: kangjingyao_nj@163.com

摘要:

氧是植物生命活动所必需的营养因子, 充足的氧供应才能满足植物正常生长发育的需求, 但频发的洪涝灾害使根系淹水缺氧成为植物生长过程中经常遭受的非生物胁迫。因此, 了解植物对根际氧含量变化的响应与适应机制对作物的生产及抗性品种的选育有重要意义。该文对根际氧环境对植物多方面的影响进行了综述, 包括植物的需氧量、氧含量对根际环境的影响和氧含量对植物的影响等, 并阐明植物在低氧下的伤害与适应机理和植物对低氧信号的感应与信号传导机制, 最后总结了避免缺氧伤害的措施, 同时还提出根际氧含量方面有待进一步探索的问题与研究方向, 为后续的研究提供新思路。

关键词: 根际氧含量, 适应机制, 氧感应, 内氧浓度, 增氧

Abstract:
Oxygen is an essential substance for plants, and adequate oxygen supply is necessary for plant growth and developments. As one of the major abiotic threats to plants, frequent floods could lead to oxygen deficiency in the rhizosphere. Therefore, it is important to understand the response and adaptive mechanisms of plants to rhizosphere oxygen concentration for crop productions and breeding of resistant varieties. This review shed light on the impacts of rhizosphere oxygen contents on plants from multiple perspectives. We also demonstrated the injury and acclimations caused by oxygen deficiency and the mechanism of low-oxygen signaling. We finally summarized methods to avoid oxygen deficit and prospect of further studies.

Key words: rhizosphere oxygen content, adaptation mechanism, oxygen signaling, internal oxygen concentration, aeration