Salinity and Salt-Priming Impact on Growth, Photosynthetic Performance, and Nutritional Quality of Edible Mesembryanthemum crystallinum L.

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.

Salt Priming as a Smart Approach to Mitigate Salt Stress in Faba Bean (Vicia faba L.)

“…The importance of proline for osmotic adjustment in primed plants over TSS was confirmed in the present study by the higher level of proline in P/ShK plants, compared with Shk plants, while TSS were comparable in both plant groups. Similar observations were recorded in wheat [57] and Mesembryanthemum crystallinum [58]. Collectively, Figure 9 provides a mechanistic summary of how the priming can help the plants in executing the defense mechanisms to cope with the consequences of salt shock and its injurious effects on growth and yield.…”

“…On the other hand, the results of the present investigation reflected better growth and yield in P/Shk plants, compared with the results recorded in Shk plants. The alleviatory role of priming was also indicated in the growth, the photosynthetic pigments, and/or the yield of salt-primed shocked plants of sweet sorghum [56], wheat [11,57], and Mesembryanthemum crystallinum [58]. The better growth and yield of primed plants under salt shock can be attributed primarily to the ability of priming to culminate the oxidative stress symptoms, as indicated by the decrease in H 2 O 2 and MDA, as well as by the increase in MSI.…”

Ocena stopnje škodljivosti in razširjenosti nekaterih tujerodnih rastlinskih vrst v kmetijski pridelavi Slovenije za obdobje 2000-2022

“…Primer rastline, kjer invazivnost temelji na zaslanjanju zemljišča je vrsta Mesembryanthemum crystallinum (Agarie et al, 2007;He et al, 2022). Rastlina tekom rasti iz golobjih plasti tal prečrpa tolikšne količine soli, da to povzroča površinsko zaslanjanje tal.…”

Morphological and biochemical changes with hormone and hydro- priming applications in safflower (Carthamus tinctorius L.) seedlings under salinity stress conditions

“…Farooq et al (2022) reported that in nanopriming, hydropriming and control applications of wheat seeds, TPC decreased as the priming doses increased. He et al (2022) Mesembryanthemum crystallinum L. primed with sea water under salt stress. As a result of the study, they reported that phenolic compounds increased as the percentage of primig application increased.…”