Enhancement of Brassica napus Tolerance to High Saline Conditions by Seed Priming

Stassinos, Panaiotis M.; Rossi, Massimiliano; Borromeo, Ilaria; Capo, Concetta; Beninati, Simone; Forni, C.

doi:10.3390/plants10020403

Cited by 21 publications

(33 citation statements)

References 40 publications

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“…The area dedicated to canola cultivation worldwide is growing because of its economic importance. Previous studies highlighted that, in presence of moderate saline stress (EC = 4-8 dS/m), B. napus growth is reduced [14,20]. To relieve the inhibitory effect of soil salinity on canola growth, different strategies have been developed and tested, including plant acclimation [10], seed priming [14], and exogenous application of methyl jasmonate [47].…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies highlighted that, in presence of moderate saline stress (EC = 4-8 dS/m), B. napus growth is reduced [14,20]. To relieve the inhibitory effect of soil salinity on canola growth, different strategies have been developed and tested, including plant acclimation [10], seed priming [14], and exogenous application of methyl jasmonate [47]. In addition, the inoculation of plants with PGPB can significantly improve plant tolerance to stressful conditions [14,16].…”

Section: Discussionmentioning

confidence: 99%

“…To relieve the inhibitory effect of soil salinity on canola growth, different strategies have been developed and tested, including plant acclimation [10], seed priming [14], and exogenous application of methyl jasmonate [47]. In addition, the inoculation of plants with PGPB can significantly improve plant tolerance to stressful conditions [14,16]. For this study, we selected five bacterial strains based on their plant growth-promoting activities [24,[29][30][31][32][33].…”

Section: Discussionmentioning

confidence: 99%

“…and then incubated for 30 min at 40 Phenolic compounds were extracted from homogenized samples (n = 9) suspended in 3 mL of 0.1 N HCl and then incubated for three hours at 4 • C. after the incubation the samples were centrifuged for 15 min at 8000× g. Supernatants were collected, and the pellets were resuspended in 2 mL of 0.1 N HCl and centrifuged again for 15 min at 8000× g. The supernatants were pooled and brought to a final volume of 6 mL with an additional 0.1 N HCl. Total phenols amount was extrapolated owing to the protocol of Stassinos et al [14]. The sample absorbance was measured at 724 nm.…”

Section: Membrane Injury Index (Mii)mentioning

confidence: 99%

“…This species is a glycophyte, which is quite sensitive to the presence of salt in the soil, even though its genotypes can range from sensitive to tolerant [10]. Different approaches can be applied to help canola plants to overcome salt stress, including plant acclimation [10] and seed priming [14]. In addition, the establishment of a mutualistic relationship between plants and plant growth-promoting bacteria (PGPB) [15][16][17][18][19][20] can be a good strategy to help plants to overcome salt stress.…”

Section: Introductionmentioning

confidence: 99%

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PGPB Improve Photosynthetic Activity and Tolerance to Oxidative Stress in Brassica napus Grown on Salinized Soils

et al. 2021

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Soil salinization, one of the most common causes of soil degradation, negatively affects plant growth, reproduction, and yield in plants. Saline conditions elicit some physiological changes to cope with the imposed osmotic and oxidative stresses. Inoculation of plants with some bacterial species that stimulate their growth, i.e., plant growth-promoting bacteria (PGPB), may help plants to counteract saline stress, thus improving the plant’s fitness. This manuscript reports the effects of the inoculation of a salt-sensitive cultivar of Brassica napus (canola) with five different PGPB species (separately), i.e., Azospirillum brasilense, Arthrobacter globiformis, Burkholderia ambifaria, Herbaspirillum seropedicae, and Pseudomonas sp. on plant salt stress physiological responses. The seeds were sown in saline soil (8 dS/m) and inoculated with bacterial suspensions. Seedlings were grown to the phenological stage of rosetta, when morphological and physiological features were determined. In the presence of the above-mentioned PGPB, salt exposed canola plants grew better than non-inoculated controls. The water loss was reduced in inoculated plants under saline conditions, due to a low level of membrane damage and the enhanced synthesis of the osmolyte proline, the latter depending on the bacterial strain inoculated. The reduction in membrane damage was also due to the increased antioxidant activity (i.e., higher amount of phenolic compounds, enhanced superoxide dismutase, and ascorbate peroxidase activities) in salt-stressed and inoculated Brassica napus. Furthermore, the salt-stressed and inoculated plants did not show detrimental effects to their photosynthetic apparatus, i.e., higher efficiency of PSII and low energy dissipation by heat for photosynthesis were detected. The improvement of the response to salt stress provided by PGPB paves the way to further use of PGPB as inoculants of plants grown in saline soils.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Membrane Injury Index (Mii)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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PGPB Improve Photosynthetic Activity and Tolerance to Oxidative Stress in Brassica napus Grown on Salinized Soils

et al. 2021

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Spermidine mitigates salt stress in grapevine with alterations in physicochemical properties and nutrient composition

Shokri,

Amiri,

Barin

2024

J. Plant Nutr. Soil Sci.

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BackgroundPolyamines are plant growth regulators that exert a pivotal role in salt tolerance.AimsThis research focused on investigating the effect of spermidine on morphological and physicochemical characteristics and ion accumulation of two grapevine cultivars under NaCl stress.MethodsA greenhouse experiment was conducted with three factors, including two grapevine cultivars (Vitis vinifera L. cv. Bidaneh‐Sefid and cv. Siah‐Sardasht), four levels of NaCl (together with the nutrient solution, including 0 [control], 20, 40, and 80 mM), and four spermidine levels ([foliar spray], 0 [control], 0.25, 0.5, and 1 mM). The experiment was performed in a factorial trial in accordance with a randomized complete design with three replicates.ResultsVegetative growth indices, including leaf number, fresh and dry weight of shoot, and root, were decreased by NaCl treatments. The application of spermidine positively reduced the effects of NaCl on morphological characteristics. Moreover, NaCl and/or spermidine significantly (p ≤ 0.05) improved antioxidant enzyme activities associated with rising total protein accumulation. NaCl stress significantly decreased ion percentage (calcium, magnesium, phosphate, potassium, iron, and zinc) in the leaves of both cultivars. Based on the results, increasing salinity levels significantly boosted plant Na+ and Cl− percentage, along with increased membrane permeability and malondialdehyde (MDA) concentration. Interestingly, cv. Bidaneh‐Sefid leaves accumulated less Na+ and Cl− compared to the other cultivar. On the other hand, applying spermidine reduced the levels of Na+ and Cl− in both cultivars, and this reduction was associated with a decrease in membrane permeability and MDA concentration.ConclusionsThe findings confirmed the role of spermidine in reducing the negative effects of NaCl, although more investigations with different grapevine cultivars under NaCl stress are required.

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Seed priming using different agents can alleviate salt stress in kenaf (Hibiscus cannabinus L.) by activating antioxidant system and related genes expression

Li,

Luo,

Rehman

et al. 2024

Physiol Mol Biol Plants

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Enhancement of Brassica napus Tolerance to High Saline Conditions by Seed Priming

Cited by 21 publications

References 40 publications

PGPB Improve Photosynthetic Activity and Tolerance to Oxidative Stress in Brassica napus Grown on Salinized Soils

PGPB Improve Photosynthetic Activity and Tolerance to Oxidative Stress in Brassica napus Grown on Salinized Soils

Spermidine mitigates salt stress in grapevine with alterations in physicochemical properties and nutrient composition

Seed priming using different agents can alleviate salt stress in kenaf (Hibiscus cannabinus L.) by activating antioxidant system and related genes expression

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