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Strategies used by two goji species, Lycium ruthenicum and Lycium barbarum, to defend against salt stress

文献类型： 外文期刊

作者： Li, Weinan 1 ; Rao, Shupei 1 ; Du, Chao 1 ; Liu, Liping 1 ; Dai, Guoli 3 ; Chen, Jinhuan 1 ;

作者机构： 1.Beijing Forestry Univ, Coll Biol Sci & Technol, Beijing 100083, Peoples R China

2.Beijing Forestry Univ, Natl Engn Lab Tree Breeding, Key Lab Genet & Breeding Forest Trees & Ornamental, Minist Educ, Beijing 100083, Peoples R China

3.Ningxia Acad Agr & Forestry Sci, Natl Wolfberry Engn Res Ctr, Yinchuan 750002, Peoples R China

4.Wolfberry Sci Inst, Ningxia Acad Agr & Forestry Sci, Yinchuan 750002, Peoples R China

关键词： Biomass; Ion accumulation; Ion flux; Lycium; Salt resistance

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.342； 五年影响因子：4.342 ）

ISSN： 0304-4238

年卷期： 2022 年 306 卷

页码：

收录情况： SCI

摘要： The perennial shrub genus goji, particularly the wild species Lycium ruthenicum, has a high tolerance to salinity, but the adaptation strategy used by this salt-tolerant species is poorly understood. Here, the differential responses of cultivated goji Lycium barbarum and wild Lycium ruthenicum to salinity were investigated to study their stress tolerance and understand their salt-stress tolerance strategies. Physiological traits, including biomass, malondialdehyde content, and proline content were analyzed under different NaCl concentrations. Results of the biomass analysis indicated that moderate NaCl treatment enhanced growth compared with nonsalinized control. However, malondialdehyde accumulated under the 200 mM NaCl treatment, particularly in L. barbarum. Proline levels increased, whereas the SPAD value and relative water content were stable. After L. barbarum and L. ruthenicum seedlings were treated with 200 mM NaCl for 16 days, ion accumulations and ion flux characteristics were analyzed. L. ruthenicum evolved a more efficient mechanism to maintain K+/Na+ homeostasis than L. barbarum because the former had an improved ability to regulate ion transport.

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