Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/23730
Title: 
Authors: 
Keywords: 
Artificial seawater
Halophyte
Leaf growth
Photosynthesis
Phytochemicals
Salinity stress
Salt priming
Issue Date: 
2022
Citation: 
He, J., Ng, O. W., & Qin, L. (2022). Salinity and salt-priming impact on growth, photosynthetic performance, and nutritional quality of edible Mesembryanthemum crystallinum L. Plants, 11(3), Article 332. https://doi.org/10.3390/plants11030332
Journal: 
Plants
Abstract: 
Mesembryanthemum crystallinum L. is a nutritious edible facultative halophyte. This study aimed to investigate the physiology and quality of M. crystallinum L. grown under different salinities and salt-priming conditions. All plants were first grown in 10% artificial seawater (ASW) for 10 days. After that, some plants remained in 10% ASW while the others were transferred to 20%, 30%, 40%, or 50% ASW for another 10 days. Some plants also underwent a salt priming by transferring them gradually from 10% to 100% ASW over a span of 10 days (defined as salt primed). All plants were green and healthy. However, there were reductions in shoot and root productivity, leaf growth, and water content, but also an increase in leaf succulence after transferring plants to higher salinities. The salt-primed plants showed higher photosynthetic light use efficiency with higher chlorophyll concentration compared to other plants. The concentrations of proline, ascorbic acid (ASC), and total phenolic compounds (TPC) increased as percentages of ASW increased. The salt-primed plants switched from C3 to crassulacean acid metabolism photosynthesis and accumulated the greatest amounts of proline, ASC, and TPC. In conclusion, higher salinities and salt priming enhance the nutritional quality of M. crystallinum L. but compromises productivity.
URI: 
ISSN: 
2223-7747 (online)
DOI: 
Project number: 
MEOD 2/20 HJ
Grant ID: 
2018-T1-001-008
Funding Agency: 
Ministry of Education, Singapore
National Institute of Education, Singapore
MEOD Pte Ltd
File Permission: 
Open
File Availability: 
With file
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