Using controlled salt stress and β-aminobutyric acid signaling to decrease transplant failure

Karimi, Shahram; Mirfattahi, Zahra; Ferguson, Louise; Tavallali, Vahid

doi:10.1016/j.scienta.2017.06.070

Cited by 15 publications

(9 citation statements)

References 45 publications

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“…In species that are susceptible reduced more [37]. In the present study, despite the relative de types, it can be seen that RWC was similar at 200 mM NaCl, w rootstocks were successful in using cell water retention mecha level of MSI is considered to be an important indicator of tol plants [38]. Other researchers also confirmed that the MSI of p treatment [39,40].…”

Section: Discussionsupporting

confidence: 66%

“…In the present study, despite the relative decrease of RWC in all genotypes, it can be seen that RWC was similar at 200 mM NaCl, which means that all three rootstocks were successful in using cell water retention mechanisms (Figure 2A). A high level of MSI is considered to be an important indicator of tolerance to abiotic stress in plants [38]. Other researchers also confirmed that the MSI of plants declines under NaCl treatment [39,40].…”

Section: Discussionmentioning

confidence: 86%

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Osmolyte Accumulation and Sodium Compartmentation Has a Key Role in Salinity Tolerance of Pistachios Rootstocks

et al. 2021

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Physio-biochemical responses of pistachio varieties including Pistacia vera L. ‘Ghazvini’ (GH), P. vera ‘Ghermez-Pesteh’ (GP) and P. atlantica subsp. mutica (M) were assessed under salt stress to understand the common mechanisms of salt tolerance in two popular Pistacia species. In the experiment, half-sib seedlings of the varieties were subjected to high (100 mM) and severe (200 mM) levels of NaCl-induced salinity for 90 days. Growth, physiological, biochemical and ionic parameters in the roots and shoots of plants were measured in the experiment. Salinity markedly declined plant growth, and increased the number of necrotic leaves (NL) and leaf abscission. In terms of physiological responses, salinity reduced the relative water content (RWC), membrane stability index (MSI) and the concentrations of photosynthetic pigments, but increased carbohydrates and proline content in the leaves. MSI of the leaves was positively correlated with the concentrations of anthocyanins and carotenoids. Salinity increased sodium content in root and shoot tissues of the plants, and decreased potassium concentration and K/Na ratio. Among the rootstocks, GH had better performance on all parameters. Despite the high concentration of Na+ and low K/Na ratio in the shoots, the lowest number of NL was found in GH under both salinity levels. The results indicated that salt tolerance in GH was most likely related to compartmentation of Na+ ions. Finally, accumulation of osmolytes and sodium compartmentation were considered to be the most important mechanisms in the salt tolerance of pistachio rootstocks.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 86%

Osmolyte Accumulation and Sodium Compartmentation Has a Key Role in Salinity Tolerance of Pistachios Rootstocks

et al. 2021

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“…Thereafter, plants were subjected to non‐saline, moderate, and severe salt stress by irrigating the pot with 900 mL Hoagland nutrient solution containing 0, 45, and 90 mM (~1.5, 6, and 10.5 dSm −1 ) NaCl, respectively, every 48 h for 90 days (May 21 to August 18, the first irrigation was on May 21) as previously reported (Gohari et al 2021; Zahedi et al 2019). To prevent the accumulation of salt in the pots, each pot was leached every 2 weeks using 5000 mL tap water as previously reported (Behzadi Rad et al 2021; Giuffrida & Lipari 2003; Karimi et al 2017). All pots used have holes in the bottom to maintain drainage and remove the excessive solution.…”

Section: Methodsmentioning

confidence: 99%

Exogenous melatonin mitigates salinity‐induced damage in olive seedlings by modulating ion homeostasis, antioxidant defense, and phytohormone balance

Zahedi

Hosseini

Hoveizeh

et al. 2021

Physiologia Plantarum

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Melatonin (MEL) is a ubiquitous molecule with pleiotropic roles in plant adaption to stress. In this study, we investigated the effects of foliar spray of 100 and 200 μM MEL on the biochemical and physiological traits linked with the growth performance of olive seedlings exposed to moderate (45 mM NaCl) and severe (90 mM NaCl) salinity. Both salt stress conditions caused a considerable reduction in leaf relative water content and the contents of photosynthetic pigments (carotenoids, chlorophylls a and b, and total chlorophylls), K+ and Ca+2, while the contents of Na+ and the activities of antioxidant enzymes increased. In addition, salt‐stressed olive seedlings showed high accumulations of hydrogen peroxide (H2O2), malondialdehyde (MDA), and electrolyte leakage (EL), indicating that olive seedlings suffered from salinity‐induced oxidative damage. In contrast, MEL application revived the growth of olive seedlings, including shoot height, root length and biomass under salt stress conditions. MEL protected the photosynthetic pigments and decreased the Na+/K+ ratio under both moderate and severe salt stresses. Furthermore, MEL induced the accumulations of proline, total soluble sugars, glycine betaine, abscisic acid, and indole acetic acid in salt‐stressed olive seedlings, which showed a positive correlation with improved leaf water status and biomass. MEL application also increased the activities of catalase, superoxide dismutase, ascorbate peroxidase, and peroxidase in salt‐stressed seedlings, resulting in lower levels of H2O2, MDA, and EL in these plants. Taken together, MEL mitigates salinity through its roles in various biochemical and physiological processes, thereby representing a promising agent for application in crop protection.

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“…The preconditioning treatments consist of the use of physical or chemical treatments that enhance the expression of genes related to the stress tolerance in plants (Funnekotter et al, 2016). As a result, the preconditioned plants are able to respond to sudden changes in environmental conditions in a faster and stronger way (Karimi et al, 2017b). The β-aminobutyric acid (BABA) is a non-protein amino acid that acts as a signal associated with environmental and biological stresses (Tavallali et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, the BABA prepares the plants for unfavorable conditions by increasing the transcription of abscisic acid and ethylene genes (Zimmerli et al, 2008;Schwarzenbacher et al, 2020). Increasing the accumulation of abscisic acid following the application of BABA increases the plant's tolerance to salinity and drought stress by accelerating stomatal closure and reducing water consumption (Karimi et al, 2017b). Moreover, an increased activity of antioxidative enzymes has been reported following the application of BABA (Du et al, 2012;Baccelli and Mauch-Mani, 2016).…”

Section: Introductionmentioning

confidence: 99%

The Improvement of Growth, Water Relations, and Oxidative Reduction of Pistachio Rootstock in Drought Stress Conditions with Beta-Aminobutyric Acid Pretreatment

Karimi

Shokri

2022

Poljoprivreda (Online)

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Environmental stresses are inevitable during the plant growth. The β-aminobutyric acid (BABA) induces systemic resistance in plants. The efficiency of BABA pretreatments (0.5 and 10 mM) in inducing drought tolerance in the ‘Akbari’ pistachio rootstock in controlled environmental conditions was investigated. The BABA solutions were sprayed three times every two days on pistachio seedlings at the 15-leaf stage. Subsequently, the irrigation of plants was withheld for 25 days, and the effects of BABA pretreatments on the growth, water relations, and oxidative damage indices in plants were investigated. The BABA pretreatments prevented the reduction of shoot dry and fresh mass under a drought stress by inhibiting the leaf abscission and maintaining the relative water content. Owing to the leaf abscission, leaf water potential and turgidity of drought-stressed plants were similar to the control plants. However, the measurement of osmotic potential indicated that the BABA pretreatments improved turgor potential in leaves of the drought-stressed plants by inducing osmotic regulation. A declined membrane stability index and chlorophylls, as well as the malondialdehyde accumulation in line with the hydrogen peroxide accumulation in the leaves, indicated the development of oxidative damage under drought. Still, the BABA pretreatment restricted the severity of oxidative damages. In this regard, a 5 mM BABA pretreatment was the most effective one in the anti-drought plant protection.

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Using controlled salt stress and β-aminobutyric acid signaling to decrease transplant failure

Cited by 15 publications

References 45 publications

Osmolyte Accumulation and Sodium Compartmentation Has a Key Role in Salinity Tolerance of Pistachios Rootstocks

Osmolyte Accumulation and Sodium Compartmentation Has a Key Role in Salinity Tolerance of Pistachios Rootstocks

Exogenous melatonin mitigates salinity‐induced damage in olive seedlings by modulating ion homeostasis, antioxidant defense, and phytohormone balance

The Improvement of Growth, Water Relations, and Oxidative Reduction of Pistachio Rootstock in Drought Stress Conditions with Beta-Aminobutyric Acid Pretreatment

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