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Chinese Journal of Applied Ecology ›› 2017, Vol. 28 ›› Issue (12): 4127-4133.doi: 10.13287/j.1001-9332.201712.026

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Progress in decoding the impact of abiotic stress on spikelet fertility in rice

ZHOU Xiao-dong1, ZHOU Juan2, ZHANG Xue-song1, JIANG Xiao-dong1, YANG Lian-xin2*, WANG Yu-long2   

  1. 1College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
    2Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, Jiangsu, China
  • Received:2016-12-09 Online:2017-12-18 Published:2017-12-18
  • Contact: * E-mail: lxyang@yzu.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (31571597)

Abstract: Recent research progress in the impact of abiotic stress on florets sterility was summarized in this review to reveal key processes in determining the floret sterility resulted from abiotic stress and their coherent connections. The spikelet fertility was mainly determined by four key processes, including behavior of tapetum, anther dehiscence and pollen release, pollen germination and fertilization. Abiotic stress affected these processes and led to the spikelet sterility. Abnormal changes at the early-stage of anther growth could impact the development of germ cell and fertilization. Damages of floret fertility caused by abiotic stress could be mitigated via some practices such as spraying exogenous plant growth substances or silicon fertilizer. Some research topics were suggested for future investigation, including the interactions of multiple stress factors on fertility, morphological and physiological effects on floral organ formation, differential responses of rice varieties to abiotic stress, and molecular mechanism of abiotic stress on floral organ development.