Salicylic acid and trehalose attenuate salt toxicity in Brassica juncea L. by activating the stress defense mechanism

Islam, Shaistul; Mohammad, Firoz; Siddiqui, Manzer H.; Kalaji, Hazem M.

doi:10.1016/j.envpol.2023.121467

Cited by 4 publications

(1 citation statement)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Salinity tolerance in plants is also governed by the accumulation of osmoprotectants and the maintenance of hormonal homeostasis (Islam et al, 2023). According to this study, the PGPR inoculation led to higher proline accumulation after exposure to salt stress, suggesting its potential role in conserving osmotic and redox equilibria (Figure 1G; Basu et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Plant growth promoting rhizobacterium Bacillus sp. BSE01 alleviates salt toxicity in chickpea (Cicer arietinum L.) by conserving ionic, osmotic, redox and hormonal homeostasis

Basu,

Kumari,

Subhadarshini

et al. 2023

Physiologia Plantarum

View full text Add to dashboard Cite

Soil salinity leading to sodium toxicity is developing into a massive challenge for agricultural productivity globally, inducing osmotic, ionic, and redox imbalances in plants. Considering the predicted increase in salinization risk with the ongoing climate change, applying plant growth‐promoting rhizobacteria (PGPR) is an environmentally safe method for augmenting plant salinity tolerance. The present study examined the role of halotolerant Bacillus sp. BSE01 as a promising biostimulant for improving salt stress endurance in chickpea. Application of PGPR significantly increased the plant height, relative water content, and chlorophyll content of chickpea under both non‐stressed and salt stress conditions. The PGPR‐mediated tolerance towards salt stress was accomplished by the modulation of hormonal signaling and conservation of cellular ionic, osmotic, redox homeostasis. With salinity stress, the PGPR‐treated plants significantly increased the indole‐3‐acetic acid and gibberellic acid contents more than the non‐treated plants. Furthermore, the PGPR‐inoculated plants maintained lower 1‐aminocyclopropane‐1‐carboxylic acid and abscisic acid contents under salt treatment. The PGPR‐inoculated chickpea plants also exhibited a decreased NADPH oxidase activity with reduced production of reactive oxygen species compared to the non‐inoculated plants. Additionally, PGPR treatment led to increased antioxidant enzyme activities in chickpea under saline conditions, facilitating the reactive nitrogen and oxygen species detoxification, thereby limiting the nitro‐oxidative damage. Following salinity stress, enhanced K+/Na+ ratio and proline content were noted in the PGPR‐inoculated chickpea plants. Therefore, Bacillus sp. BSE01, being an effective PGPR and salinity stress reducer, can further be considered to develop a bioinoculant for sustainable chickpea production under saline environments.

show abstract

Section: Discussionmentioning

confidence: 99%

Plant growth promoting rhizobacterium Bacillus sp. BSE01 alleviates salt toxicity in chickpea (Cicer arietinum L.) by conserving ionic, osmotic, redox and hormonal homeostasis

Basu,

Kumari,

Subhadarshini

et al. 2023

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

Trehalose-6-phosphate phosphatase (TPP) participates in cold acclimatization of Actinidia arguta depending on the ethylene signal transduction pathway

Eh,

Lei,

Phyon

et al. 2023

Preprint

View full text Add to dashboard Cite

Actinidia arguta (kiwiberry) is a perennial deciduous vine that has a very strong overwintering ability. We speculated that trehalose metabolism, which plays a pivotal role in the stress tolerance of plants, may be involved in the cold acclimatization of A. arguta. Transcriptome analysis showed that the expression of AaTPPA, encoding a trehalose-6-phosphate phosphatase (TPP), was upregulated in response to low temperature. AaTPPA expression levels were much higher in lateral buds, roots, and stem cambium than in leaves in autumn. In AaTPPA-overexpressing (OE) Arabidopsis thaliana, trehalose levels were 8 ~ 11 times higher than that of the wild type (WT) and showed different phenotypic characteristics from WT or overexpression lines of OtsB, the E. coli TPP gene. Surprisingly, AaTPPA-OE A. thaliana had significantly higher freezing tolerance than WT and OtsB-OE lines. Transient overexpression of AaTPPA in A. arguta leaves increased ROS scavenging capacity and the contents of soluble sugars and proline. AaERF64, an ethylene-responsive transcription factor, was induced by ethylene treatment, and bound to the GCC-box of the AaTPPA promoter to activate its expression. AaTPPA expression was also induced by abscisic acid (ABA). Overall, the temperature decrease in autumn induces AaERF64 expression through the ethylene signal transduction pathway, which in turn upregulates AaTPPA expression, leading to the accumulation of osmotic protectants including soluble sugars and proline in the overwintering tissues of A. arguta.

show abstract

A Novel Composite Hydrogel Material for Sodium Removal and Potassium Provision

Huang,

Gotoh,

Nakai

et al. 2023

Polymers

View full text Add to dashboard Cite

Sodium ions are commonly found in natural water sources, and their high concentrations can potentially lead to adverse effects on both the water sources and soil quality. In this study, we successfully synthesized potassium polyacrylate (KMAA) hydrogel through free radical polymerization and evaluated its capability to remove sodium ions from and supply potassium ions to aqueous solutions. To assess its performance, inductively coupled plasma emission spectroscopy (ICP) was employed to analyze the sodium ion removal capacity and potassium ion exchange capability of the KMAA hydrogel at various initial sodium ion concentrations and pH values. The results demonstrated that the KMAA hydrogel exhibited remarkable efficiency in removing sodium ions and providing potassium ions. At pH 7, the maximum adsorption capacity for sodium ions was measured at 70.7 mg·g−1. The Langmuir model, with a correlation coefficient of 0.98, was found to be more suitable for describing the adsorption process of sodium ions. Moreover, at pH 4, the maximum exchange capacity for potassium ions reached 243.7 mg·g−1. The Freundlich model, with a correlation coefficient of 0.99, was deemed more appropriate for characterizing the ion exchange behavior of potassium ions. In conclusion, the successfully synthesized KMAA hydrogel demonstrates superior performance in removing sodium ions and supplying potassium ions, providing valuable insights for addressing high sodium ion concentrations in water sources and facilitating potassium fertilizer supply.

show abstract

Salicylic acid and trehalose attenuate salt toxicity in Brassica juncea L. by activating the stress defense mechanism

Cited by 4 publications

References 77 publications

Plant growth promoting rhizobacterium Bacillus sp. BSE01 alleviates salt toxicity in chickpea (Cicer arietinum L.) by conserving ionic, osmotic, redox and hormonal homeostasis

Plant growth promoting rhizobacterium Bacillus sp. BSE01 alleviates salt toxicity in chickpea (Cicer arietinum L.) by conserving ionic, osmotic, redox and hormonal homeostasis

Trehalose-6-phosphate phosphatase (TPP) participates in cold acclimatization of Actinidia arguta depending on the ethylene signal transduction pathway

A Novel Composite Hydrogel Material for Sodium Removal and Potassium Provision

Contact Info

Product

Resources

About