“Exogenous boron alleviates salt stress in cotton by maintaining cell wall structure and ion homeostasis”

Lu, Kesong; Yan, Lei; Riaz, Muhammad; Babar, Saba; Hou, Jun Ming; Zhang, Yali; Jiang, Chuang-Dao

doi:10.1016/j.plaphy.2023.107858

Cited by 9 publications

(11 citation statements)

References 78 publications

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“…Carbohydrates (such as sugars and starch) and proline are important primary metabolites acting as osmoprotectants to combat salt-induced osmotic stress ( Patel et al., 2020 ). Induction of these osmoregulatory metabolites has been linked to the enhancement of salt tolerance in citrus and cotton plants ( Lu et al., 2023 ; Zhang et al., 2023a ). Plant extracts could be used as potential biostimulants with the ability of inducing plant salt tolerance by priming the synthesis of soluble carbohydrates or proline ( Ghezal et al., 2016 ; Pehlivan, 2018 ; Lorenzo et al., 2019 ; Rady et al., 2019 ; Desoky et al., 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Eugenol improves salt tolerance via enhancing antioxidant capacity and regulating ionic balance in tobacco seedlings

Xu,

Wang,

Sun

et al. 2024

Front. Plant Sci.

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Salt stress inhibits plant growth by disturbing plant intrinsic physiology. The application of exogenous plant growth regulators to improve the plant tolerance against salt stress has become one of the promising approaches to promote plant growth in saline environment. Eugenol (4-allyl-2- methoxyphenol) is the main ingredient in clove oil and it is known for its strong antioxidant and anti-microbial activities. Eugenol also has the ability of inhibiting several plant pathogens, implying the potential use of eugenol as an environmental friendly agrichemical. However, little is known about the possible role of eugenol in the regulation of plant tolerance against abiotic stress. Therefore, here we investigated the effectiveness of phytochemical eugenol in promoting salt tolerance in tobacco seedlings through physiological, histochemical, and biochemical method. The seedling roots were exposed to NaCl solution in the presence or absence of eugenol. Salt stress inhibited seedling growth, but eugenol supplementation effectively attenuated its effects in a dose-dependent manner, with an optimal effect at 20 µM. ROS (reactive oxygen species) accumulation was found in seedlings upon salt stress which was further resulted in the amelioration of lipid peroxidation, loss of membrane integrity, and cell death in salt-treated seedlings. Addition of eugenol highly suppressed ROS accumulation and reduced lipid peroxidation generation. Both enzymatic and non-enzymatic antioxidative systems were activated by eugenol treatment. AsA/DHA and GSH/GSSG were also enhanced upon eugenol treatment, which helped maintain redox homeostasis upon salinity. Eugenol treatment resulted in an increase in the content of osmoprotectants (e.g. proline, soluble sugar and starch) in salt-treated seedlings. Na+ levels decreased significantly in seedlings upon eugenol exposure. This may result from the upregulation of the expression of two ionic transporter genes, SOS1 (salt-hypersensitive 1) and NHX1 (Na+/H+ anti-transporter 1). Hierarchical cluster combined correlation analysis uncovered that eugenol induced salt tolerance was mediated by redox homeostasis and maintaining ionic balance in tobacco seedlings. This work reveals that eugenol plays a crucial role in regulating plant resistant physiology. This may extend its biological function as a novel biostimulant and opens up new possibilities for improving crop productivity in the saline agricultural environment.

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Section: Discussionmentioning

confidence: 99%

Eugenol improves salt tolerance via enhancing antioxidant capacity and regulating ionic balance in tobacco seedlings

Xu,

Wang,

Sun

et al. 2024

Front. Plant Sci.

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“…When exposed to salt stress, supplementation with B decreases cellulose accumulation, protecting the cell wall and stabilizing its structure. The role of B in relieving oxidative stress is also notable; it diminishes malondialdehyde and H 2 O 2 levels while enhancing components of the antioxidant defense system, such as the ascorbate/dehydroascorbate ratio, which tends to decrease under salt-induced stress [ 80 , 81 ].…”

Section: Metal(loid) Defense To Abiotic Stressmentioning

confidence: 99%

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Zhang,

Liu,

Song

et al. 2024

Plants

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Plants, as sessile organisms, uptake nutrients from the soil. Throughout their whole life cycle, they confront various external biotic and abiotic threats, encompassing harmful element toxicity, pathogen infection, and herbivore attack, posing risks to plant growth and production. Plants have evolved multifaceted mechanisms to cope with exogenous stress. The element defense hypothesis (EDH) theory elucidates that plants employ elements within their tissues to withstand various natural enemies. Notably, essential and non-essential trace metals and metalloids have been identified as active participants in plant defense mechanisms, especially in nanoparticle form. In this review, we compiled and synthetized recent advancements and robust evidence regarding the involvement of trace metals and metalloids in plant element defense against external stresses that include biotic stressors (such as drought, salinity, and heavy metal toxicity) and abiotic environmental stressors (such as pathogen invasion and herbivore attack). We discuss the mechanisms underlying the metals and metalloids involved in plant defense enhancement from physiological, biochemical, and molecular perspectives. By consolidating this information, this review enhances our understanding of how metals and metalloids contribute to plant element defense. Drawing on the current advances in plant elemental defense, we propose an application prospect of metals and metalloids in agricultural products to solve current issues, including soil pollution and production, for the sustainable development of agriculture. Although the studies focused on plant elemental defense have advanced, the precise mechanism under the plant defense response still needs further investigation.

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“…30 Lu et al applied exogenous boron to alleviate the salt stress of cotton by maintaining the cell wall structure and ion homeostasis. 31 Yan et al utilized SA to graft zein to improve the salt stress resistance of plants. 32 However, foliar application may not be appropriate for the above strategies.…”

Section: Introductionmentioning

confidence: 99%

“…To enhance salt stress resistance, Schmitz et al used a synthetic bacterial community derived from the root of a desert plant to protect tomato plants under salt stress growing in a nonsterile substrate . Lu et al applied exogenous boron to alleviate the salt stress of cotton by maintaining the cell wall structure and ion homeostasis . Yan et al utilized SA to graft zein to improve the salt stress resistance of plants .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

Zhong,

Su,

Zeng

et al. 2023

ACS Appl. Mater. Interfaces

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Soil salinization is one of the global ecological and environmental problems that are tremendously threatening to the sustainable development of agriculture and food supply. In this work, a facile strategy was proposed to enhance the salt stress resistance of plants by preparing salicylic acid (SA)-functionalized mesoporous silica nanocarriers loaded with emamectin benzoate (EB). The obtained nanopesticides demonstrated a particle size of less than 300 nm. As an endogenous plant hormone, the grafting of SA in this nanopesticide system improved the uptake and translocation of pesticides in cucumber plants by 145.06%, and the applications of such nanopesticides enhanced the salt stress resistance of plants. This phenomenon was accounted for by the SA-functionalized nanopesticides increasing the superoxide dismutase and peroxidase activities (640 and 175%, respectively) and reducing the malondialdehyde content (54.10%), correspondingly alleviating the accumulation of reactive oxygen species and cell damage in plants. The above results were also confirmed by Evans blue staining and NBT staining experiments on cucumber leaves. In addition, these nanopesticides exhibited high insecticidal toxicity, and they also demonstrated biosafety toward nontarget organisms due to their sustained release property. Therefore, this work developed a biosafe SA-functionalized nanopesticide system, and these newly developed nanopesticides have potential in the agricultural field for enhancing salt stress resistance of plants.

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“Exogenous boron alleviates salt stress in cotton by maintaining cell wall structure and ion homeostasis”

Cited by 9 publications

References 78 publications

Eugenol improves salt tolerance via enhancing antioxidant capacity and regulating ionic balance in tobacco seedlings

Eugenol improves salt tolerance via enhancing antioxidant capacity and regulating ionic balance in tobacco seedlings

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

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