Discriminating the impact of Na+ and Cl− in the deleterious effects of salt stress on the African rice species (Oryza glaberrima Steud.)

Prodjinoto, Hermann; Irakoze, Willy; Gandonou, Christophe Bernard; Lepoint, Gilles; Lutts, Stanley

doi:10.1007/s10725-021-00709-5

Cited by 19 publications

(10 citation statements)

References 65 publications

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“…Osmotic stress tolerance initiates a rapid response by diminishing cell expansion of root tips and young leaves and decreasing stomatal conductance to preserve water. It uses quick, long-distance (root to shoot) signaling pathways ( Roy et al, 2014 ; Isayenkov and Maathuis, 2019 ), which essentially ignores the osmotic effects of NaCl, KCl, mannitol, and polyethylene glycol ( Hassini et al, 2017 ; Darko et al, 2019 ; Prodjinoto et al, 2021 ; Gul et al, 2022 ). In osmotic tolerance, both organic solutes and inorganic ions are essential.…”

Section: Salinity Stress Tolerance In Plantsmentioning

confidence: 99%

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

et al. 2022

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Salinity stress is one of the significant abiotic stresses that influence critical metabolic processes in the plant. Salinity stress limits plant growth and development by adversely affecting various physiological and biochemical processes. Enhanced generation of reactive oxygen species (ROS) induced via salinity stress subsequently alters macromolecules such as lipids, proteins, and nucleic acids, and thus constrains crop productivity. Due to which, a decreasing trend in cultivable land and a rising world population raises a question of global food security. In response to salt stress signals, plants adapt defensive mechanisms by orchestrating the synthesis, signaling, and regulation of various osmolytes and phytohormones. Under salinity stress, osmolytes have been investigated to stabilize the osmotic differences between the surrounding of cells and cytosol. They also help in the regulation of protein folding to facilitate protein functioning and stress signaling. Phytohormones play critical roles in eliciting a salinity stress adaptation response in plants. These responses enable the plants to acclimatize to adverse soil conditions. Phytohormones and osmolytes are helpful in minimizing salinity stress-related detrimental effects on plants. These phytohormones modulate the level of osmolytes through alteration in the gene expression pattern of key biosynthetic enzymes and antioxidative enzymes along with their role as signaling molecules. Thus, it becomes vital to understand the roles of these phytohormones on osmolyte accumulation and regulation to conclude the adaptive roles played by plants to avoid salinity stress.

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Section: Salinity Stress Tolerance In Plantsmentioning

confidence: 99%

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

et al. 2022

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“…According to Negrão et al (2017), sodium appears to accumulate to toxic levels before chloride in most species. Moreover, the discrimination of the impact of Na and Cl − in the deleterious effects of salt stress on the African rice (Oryza glaberrima) demonstrated that Na is more toxic than Cl − for this species (Prodjinoto et al 2021a). Our results revealed that plants of both cultivars accumulated high amounts of Na in shoots, grains, and grains hulls when exposed to NaCl, but that the salt-resistant TOG5307 accumulated less Na than the salt-sensitive TOG5949.…”

Section: Discussionmentioning

confidence: 60%

“…Plant material, growth conditions, and stress application Two contrasted cultivars of Oryza glaberrima [salt-resistant (TOG5307; AccNumber WAB0021855) and salt-sensitive (TOG5949; AccNumber WAB0020144)] as described by Prodjinoto et al (2018;2021a) were used. Seeds were obtained from Africa Rice (Bouaké, Ivory Coast).…”

Section: Methodsmentioning

confidence: 99%

“…They identified three groups for salinity resistance among the tested material: a salt-resistant group, a salt-sensitive group, and a « medium range » group. Moreover, some cultivars such as TOG5307 can maintain a high net photosynthesis under salt conditions despite high concentration of accumulated Na ions, while other cultivars such as TOG5949 are unable to cope with high concentration of internal Na and are therefore classified as "salt-sensitive" (Prodjinoto et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

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Impact of salinity on yield-related parameters in two contrasting cultivars of Oryza glaberrima Steud. in Benin

et al. 2023

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Summary Salinity is one of the major environmental stresses limiting growth and yield of rice. The objective of the present study was to analyze the impact of NaCl on yield-related parameters of Oryza glaberrima. Two contrasted cultivars of Oryza glaberrima previously tested for salt resistance at the vegetative stage [salt-resistant (TOG5307) and salt-sensitive (TOG5949)] were irrigated with a saline solution containing 30 mM NaCl (EC: 3 dS.m−1 NaCl). After 6 months of treatments, mineral nutrient and yield-related parameters were assessed. Proline was quantified in the panicle leaf at the start of the grain filling stage. NaCl treatment affected most yield-related parameters: panicle length, panicle leaf dry weight, number of branches per panicle, panicle leaf length, days to 50% heading, straw fresh weight per plant, grain yield per plant, number of spikelets per panicle, and number of filled grains per panicle. The weight of 1,000 grains decreased in the salt-sensitive cultivar only, suggesting that grain filling processes were compromised. The salt-resistant cultivar TOG5307 was less affected than the salt-sensitive TOG5949 and accumulated lower amounts of Na+ in the grains. For both cultivars, hulls contained higher concentration of Na+ and K+ than grains. TOG5307 also contained more proline in the panicle leaf than TOG5949, suggesting that TOG5307 can cope with the osmotic component of salt stress. The cultivar exhibiting the highest salt resistance at the vegetative stage also exhibited the highest resistance at the reproductive one.

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“…Furthermore, plants meet a combination of salts, which mainly contain both sulphate and chloride salts in the field (Tarchoune et al, 2010). Some studies have described that NaCl or Na 2 SO 4 salinity stress led to damage to growth, pigments, protein metabolism and redox balance in diverse grades in plants (Tarchoune et al, 2010;Irakoze et al, 2020;Wang et al, 2020;Prodjinoto et al, 2021). The results presented that the reduction in plant biomass was great in chloride-sensitive cultivars than in sulphate-sensitive cultivars in canola.…”

Section: Role Of Inorganic Anions In Salt Stressmentioning

confidence: 99%

Role of inorganic and organic ions in response to salt and drought stresses

Ghaffari

2022

JPSP

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Plants have different responses to salt and drought stresses. They transport several ions to balance osmotic potential and stomatal closure and opening. Ions including inorganic and organic cations and anions play a crucial role to alleviate abiotic stresses (salt and drought). Inorganic cations containing Na+, K+, Mg2+ and Ca2+ and inorganic anions comprising Cl-, PO42-, NO3-, SO42- have a great role in osmotic and ion hemostasis in response to salt and water stresses. Organic anions like acetate, succinate, malate, citrate and oxalate showed vital impacts on alleviating damages of drought and salt stresses that lead to higher yield in severe conditions. In order to recognize the mechanisms that increase tolerance of salt and drought stresses, this review illustrates roles of organic and inorganic anions and cations and their interactions on osmotic adjustment, stomata closure and ion hemostasis. Halophytes will be compared with glycophytes as the proper models to find out differences in stress tolerance mechanisms.

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Discriminating the impact of Na+ and Cl− in the deleterious effects of salt stress on the African rice species (Oryza glaberrima Steud.)

Cited by 19 publications

References 65 publications

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

Salt stress resilience in plants mediated through osmolyte accumulation and its crosstalk mechanism with phytohormones

Impact of salinity on yield-related parameters in two contrasting cultivars of Oryza glaberrima Steud. in Benin

Role of inorganic and organic ions in response to salt and drought stresses

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