Chinese Bulletin of Botany ›› 2022, Vol. 57 ›› Issue (1): 90-97.DOI: 10.11983/CBB21126

• SPECIAL TOPICS • Previous Articles     Next Articles

Research Progress of Hyperhydricity Mechanism in Plant Seedling Growth

Qingping Zhao1,2, Yuping liang2, Fangyuan Zhou2, Xiang Zhao2,*()   

  1. 1College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061
    2State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475004
  • Received:2021-07-30 Accepted:2021-10-12 Online:2022-01-01 Published:2022-01-17
  • Contact: Xiang Zhao

Abstract: Hyperhydricity (HH) or vitrification is a physiological disorder during plant growth, which shows a typical translucent phenotype like water-soaked that often occurs in the plant tissue culture. Vitrification is one of the three main influencing factors that limit the tissue culture technology and the commercialized production of seedlings during the plant tissue culture, but its molecular mechanism is still unclear by far. Using plantlets from the tissue culture as a research object often lead to an interference of man-made factors, which can be avoided by non-tissue culture material to reveal the molecular mechanism of vitrification in nature. This review summarized the recent progress of mechanism for inducing HH in non-tissue culture plants, including the abnormal deposit of suberin, the reduction of cuticular wax, the lipid peroxidation in cellular membranes and the disrupted transmembrane transport of ion or water, to provide new clues and thinking for hyperhydricity in plant seedling growth.

Key words: aquaporins, cell membrane, cuticular wax, hyperhydricity, suberin