Ion absorption, distribution and salt tolerance threshold of three willow species under salt stress

Ran, Xin; Huang, Xiaoxi; Wang, Xiao; Liang, Haiyong; Wang, Yanchao; Li, Jiajing; Huo, Zihan; Liu, Bingxiang; Ma, C

doi:10.3389/fpls.2022.969896

Cited by 10 publications

(6 citation statements)

References 71 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorption and transport of Na + , the main harmful ion to plants under NaCl stress, have always been the focus of research on salt stress. The capacity of a plant to limit Na + absorption, expel Na + from the root system, and prevent Na + from traveling to aboveground components is related to its ability to resist NaCl [ 46 , 47 ]. This study showed that the roots of Magnoliaceae could intercept Na + because the concentration of Na + was greater in roots under NaCl stress than in stems and leaves.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Growth and Physiological Responses of Magnoliaceae to NaCl Stress

Zhao,

Tian,

Zhu

et al. 2024

Plants

View full text Add to dashboard Cite

The growth and physiological characteristics of four Magnoliaceae plants (Yulania biondii, Yulania denudata, and two varieties of Magnolia wufengensis (Jiaohong 1 and Jiaohong 2)) were investigated. Four Magnoliaceae plants were subjected to various concentrations of NaCl for 60 days: 0 mM, 60 mM, 120 mM, 180 mM, and 240 mM. The leaf water content (LWC), relative growth rate of plant height and stem diameter, photosynthetic pigments, and photosynthetic rate (Pn) decreased during the NaCl treatments, indicating slowed growth and photosynthesis. Malondialdehyde (MDA), Na+, superoxide dismutase (SOD) activity, peroxidase (POD) activity, ascorbic acid (AsA) content, and soluble sugar content all increased while K+ decreased. Ascorbate peroxidase (APX) activity, glutathione (GSH), soluble protein, and proline first increased after decreasing with increasing NaCl concentration. Principal component 1 (PC1) had larger loading values for growth and photosynthesis indices, while principal component 2 (PC2) exhibited larger loading values for antioxidant substances and osmotic adjustment substances; the correlation analysis showed that PC1 and PC2 had negative correlations. The four Magnoliaceae plants exhibited largely variable growth and physiological activities in response to NaCl. Yulania denudata exhibited greater reductions in growth and photosynthesis and greater decreases in antioxidant enzyme activities and osmotic adjustment substances, which indicated poor tolerance to salt stress. Among the four Magnoliaceae plants, Jiaohong 1 exhibited the greatest salt tolerance, followed by Jiaohong 2, Yulania biondii, and Yulania denudata.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Plants block the entry of Na + into root cells at low NaCl concentrations by absorbing an excessive amount of K + . However, during severe NaCl stress, a significant amount of Na + enters cells because the plant membrane system breaks down, which lowers the K + level [ 46 , 49 ].…”

Section: Discussionmentioning

confidence: 99%

Growth and Physiological Responses of Magnoliaceae to NaCl Stress

Zhao,

Tian,

Zhu

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…With more Na + available in the saline treatments, the roots of the purslane plants were able to absorb it in greater quantity ( Table S2 ), confirming the premise that salt stress induces the concentration of Na + ions in the plant cells ( Borsai et al., 2020 ; Giménez et al., 2021 ; Kumar et al., 2021 ). Much of the absorbed sodium remained in the roots, and a small part was translocated to the aerial part of the plants ( Table S2 ), indicating that plants can reduce the damage of salt stress to aboveground tissues by regulating ion transport ( Ran et al., 2021 ; Ran et al., 2022 ). As for Cl − , the roots absorbed only a small part, which translocated to the aerial part of the plants.…”

Section: Discussionmentioning

confidence: 99%

“…For Yassin et al. (2019) and Ran et al. (2022) , low uptake of Na + and high uptake of K + mean salinity tolerance in higher plants.…”

Section: Discussionmentioning

confidence: 99%

Osmoprotectants play a major role in the Portulaca oleracea resistance to high levels of salinity stress—insights from a metabolomics and proteomics integrated approach

et al. 2023

View full text Add to dashboard Cite

IntroductionPurslane (Portulaca oleracea L.) is a non-conventional food plant used extensively in folk medicine and classified as a multipurpose plant species, serving as a source of features of direct importance to the agricultural and agri-industrial sectors. This species is considered a suitable model to study the mechanisms behind resistance to several abiotic stresses including salinity. The recently achieved technological developments in high-throughput biology opened a new window of opportunity to gain additional insights on purslane resistance to salinity stress—a complex, multigenic, and still not well-understood trait. Only a few reports on single-omics analysis (SOA) of purslane are available, and only one multi-omics integration (MOI) analysis exists so far integrating distinct omics platforms (transcriptomics and metabolomics) to characterize the response of purslane plants to salinity stress.MethodsThe present study is a second step in building a robust database on the morpho-physiological and molecular responses purslane to salinity stress and its subsequent use in attempting to decode the genetics behind its resistance to this abiotic stress. Here, the characterization of the morpho-physiological responses of adult purslane plants to salinity stress and a metabolomics and proteomics integrative approach to study the changes at the molecular level in their leaves and roots is presented.Results and discussionAdult plants of the B1 purslane accession lost approximately 50% of the fresh and dry weight (from shoots and roots) whensubmitted to very high salinity stress (2.0 g of NaCl/100 g of the substrate). The resistance to very high levels of salinity stress increases as the purslane plant matures, and most of the absorbed sodium remains in the roots, with only a part (~12%) reaching the shoots. Crystal-like structures, constituted mainly by Na+, Cl−, and K+, were found in the leaf veins and intercellular space near the stoma, indicating that this species has a mechanism of salt exclusion operating on the leaves, which has its role in salt tolerance. The MOI approach showed that 41 metabolites were statistically significant on the leaves and 65 metabolites on the roots of adult purslane plants. The combination of the mummichog algorithm and metabolomics database comparison revealed that the glycine, serine, and threonine, amino sugar and nucleotide sugar, and glycolysis/gluconeogenesis pathways were the most significantly enriched pathways when considering the total number of occurrences in the leaves (with 14, 13, and 13, respectively) and roots (all with eight) of adult plants; and that purslane plants employ the adaptive mechanism of osmoprotection to mitigate the negative effect of very high levels of salinity stress; and that this mechanism is prevalent in the leaves. The multi-omics database built by our group underwent a screen for salt-responsive genes, which are now under further characterization for their potential to promote resistance to salinity stress when heterologously overexpressed in salt-sensitive plants.

show abstract

“…There were many cis-elements that responded to adversity in the BP1 promoter sequence. Salt stress also causes physiological drought in plants (Ran et al, 2022); thus, some cis-elements respond to both salt and drought stress (Yuan et al, 2022). According to the 5' deletion analysis (Fig.…”

Section: Discussionmentioning

confidence: 99%

Identification of the Inducible Activity in the Promoter of the Soybean BBI-DII Gene Exposed to Abiotic Stress or Abscisic Acid

Cheng

Dong

Zhao

et al. 2022

Preprint

View full text Add to dashboard Cite

The expression of the soybean Bowman–Birk proteinase isoinhibitor DII (BBI-DII) gene and the inducible activity of its promoter were studied under salt, drought, low temperature, and abscisic acid (ABA) exposure conditions. The BBI-DII gene was induced by salt, drought, low temperature, and ABA, and the relative expression levels at the peak were 103.09-, 107.01-, 17.25- and 27.24-fold, respectively, compared with the untreated control. The putative promoter, designated BP1 (− 1255 to + 872 bp), located 5’-upstream of the BBI-DII gene was cloned. The expression of the GUS gene in pCAM-BP1 transgenic tobacco plants was highest at 5 h after treatment with salt, drought, low temperature and ABA, especially under salt and drought. Using histochemical staining and fluorescence analysis of GUS, BP1 activity under salt and drought conditions after 5 h was 1.03 and 1.07-fold, respectively, compared with that of the CaMV35S promoter. Based on a 5’ deletion analysis, the segment (+ 41 to + 474 bp) was the basal region that responded to salt and drought, whereas the segment (− 820 to + 41 bp) was the area that responded to increased salt and drought activity. The BP2 (− 820 to + 872) activities were 0.98- and 1.02-fold compared with that of BP1 under salt and drought conditions and was 435 bp shorter than BP1. The salt- and drought-inducible activities of the BP2 promoter in the roots, stems, and leaves of transgenic tobacco plants were stable. Taken together, BP2 is more suitable than the BP1 promoter for the study and molecular breeding of stress-resistant soybean plants.

show abstract

Ion absorption, distribution and salt tolerance threshold of three willow species under salt stress

Cited by 10 publications

References 71 publications

Growth and Physiological Responses of Magnoliaceae to NaCl Stress

Growth and Physiological Responses of Magnoliaceae to NaCl Stress

Osmoprotectants play a major role in the Portulaca oleracea resistance to high levels of salinity stress—insights from a metabolomics and proteomics integrated approach

Identification of the Inducible Activity in the Promoter of the Soybean BBI-DII Gene Exposed to Abiotic Stress or Abscisic Acid

Contact Info

Product

Resources

About