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Epigenetic and Genetic Integrity, Metabolic Stability, and Field Performance of Cryopreserved Plants

文献类型： 外文期刊

作者： Wang, Min-Rui 1 ; Bi, Wenlu 3 ; Shukla, Mukund R. 3 ; Ren, Li 4 ; Hamborg, Zhibo 5 ; Blystad, Dag-Ragnar 5 ; Saxena, P 1 ;

作者机构： 1.Northwest A&F Univ, Coll Life Sci, State Key Lab Crop Stress Biol Arid Areas, Yangling Dist 712100, Xianyang, Peoples R China

2.Northwest A&F Univ, Coll Hort, State Key Lab Crop Stress Biol Arid Areas, Yangling Dist 712100, Xianyang, Peoples R China

3.Univ Guelph, Gosling Res Inst Plant Preservat, Dept Plant Agr, Guelph, ON N1G 2W1, Canada

4.Shanghai Acad Agr Sci, Inst Agrifood Stand & Testing Technol, Shanghai 201403, Peoples R China

5.Norwegian Inst Bioecon Res NIBIO, Div Biotechnol & Plant Hlth, N-1431 As, Norway

关键词： cryopreservation; (epi)genetic integrity; field performance; metabolic stability; reactive oxygen species; shoot tips; tissue culture

期刊名称：PLANTS-BASEL （ 影响因子：3.935； ）

ISSN：

年卷期： 2021 年 10 卷 9 期

页码：

收录情况： SCI

摘要： Cryopreservation is considered an ideal strategy for the long-term preservation of plant genetic resources. Significant progress was achieved over the past several decades, resulting in the successful cryopreservation of the genetic resources of diverse plant species. Cryopreservation procedures often employ in vitro culture techniques and require the precise control of several steps, such as the excision of explants, preculture, osmo- and cryoprotection, dehydration, freeze-thaw cycle, unloading, and post-culture for the recovery of plants. These processes create a stressful environment and cause reactive oxygen species (ROS)-induced oxidative stress, which is detrimental to the growth and regeneration of tissues and plants from cryopreserved tissues. ROS-induced oxidative stresses were documented to induce (epi)genetic and somatic variations. Therefore, the development of true-to-type regenerants of the source germplasm is of primary concern in the application of plant cryopreservation technology. The present article provides a comprehensive assessment of epigenetic and genetic integrity, metabolic stability, and field performance of cryopreserved plants developed in the past decade. Potential areas and the directions of future research in plant cryopreservation are also proposed.

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