Ácido salicílico atenua o efeito do estresse hídrico na germinação e crescimento inicial de plântulas de &lt;i&gt;Cereus jamacaru&lt;/i&gt; DC

Nóbrega, Jackson Silva; Nascimento, Rodrigo Garcia da Silva; Silva, Ronimeire Tôrres da; Figueiredo, Francisco Romário Andrade; Bezerra, Ana Carolina; Lopes, Maria de Fátima de Queiroz; Alves, Edna Ursulino; Bruno, Riselane de Lucena Alcântara

doi:10.14808/sci.plena.2021.040204

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…This beneficial effect of seed osmopriming with salicylic acid on initial seedling growth was also observed by Costa et al (2021;2022) in S. hispanica, for which the 1.0 mM concentration of SA stimulated seedling length under salt and water stress. In C. jamacaru, the application of 1.0 mM of SA stimulated seedling growth up to -1.2 MPa (Nóbrega et al, 2021b).…”

Section: Discussionmentioning

confidence: 95%

“…Liu et al (2019) concluded that osmopriming L. bicolor seeds with SA at a concentration of 0.08 mM increases germination under stress conditions. Nóbrega et al (2021b) found that priming with a concentration of 1.71 mM of SA attenuated the harmful effect of water stress on germination of Cereus jamacaru. Silva et al (2024) pointed out that the treatment of Cucumis melo seeds with 50 µM of SA mitigated the effect of salt stress on germination and seedling emergence.…”

Section: Discussionmentioning

confidence: 95%

“…However, it is noteworthy that the osmopriming of seeds with salicylic acid increased vigor, promoting greater speed in those subjected to the concentration of 1.0 mM. The soaking of seeds in salicylic acid can induce an increase in the production of osmoprotective compounds, reducing the damage caused by water deficit in internal tissues, enabling faster germination under stress conditions (Nóbrega et al, 2021b).…”

Section: Discussionmentioning

confidence: 99%

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Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Nóbrega,

Silva,

Silva

et al. 2024

RARV

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Cenostigma pyramidale is an endemic species of Brazil, widely spread in the Caatinga biome. The conditions in the semi-arid Northeastern region of Brazil can affect the development of plants due to the irregularity of rainfall, limiting the availability of water and reducing the germination and initial growth of native species. Therefore, seed priming with salicylic acid may mitigate the effects of water stress on plants. The objective of this work was to evaluate the effect of seed osmopriming with salicylic acid as a water deficit attenuator on germination and initial growth of C. pyramidale seedlings. A completely randomized design in a 5 × 5 factorial scheme, corresponding to five osmotic potentials (Ψs – 0, -0.3, -0.6, -0.9 and -1.2 MPa) and five doses of salicylic acid (0, 0.5, 1.0, 1.5 and 2.0 mM), with four repetitions of 25 seeds, was used. Germination and initial growth of C. pyramidale were compromised by water deficit. Osmopriming of seeds with salicylic acid at a dose of 0.63 mM is an efficient strategy to reduce the effect of water deficit in the germination stage from the potential of -0.2 MPa. The vigor of C. pyramidale seeds increased under deficit conditions with the application of salicylic acid, with the concentration varying from 0.5 to 1.0 mM. Osmopriming seeds with 0.87 mM salicylic acid promotes the development of vigorous seedlings under water deficit conditions.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

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Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Nóbrega,

Silva,

Silva

et al. 2024

RARV

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“…Thus, this technique can promote increases in the activities of several enzymes, as well as physiological adjustments that allow plants to survive a given stress condition (ACHARYA et al, 2020). Allied to this, there is an easier water absorption by the seed, which activates the pre-germinative metabolism from DNA repair processes and modulations in the redox system, promoting the induction of tolerance to abiotic stresses during germination (NÓBREGA et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of seed priming with NaCl on the induction of salinity tolerance in Myracrodruon urundeuva Allemão in vitro

Souza

Conceição²,

Barbosa

et al. 2022

Ciênc. Florest.

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Soil salinization is an environmental factor that frequently occurs in semi-arid regions around the world and seed priming technique is one of the alternatives to obtain the greatest establishment of seedlings in the field, through the induction of tolerance to environmental stresses. This research aimed to evaluate the effect of seed priming with NaCl on the induction of salinity tolerance in Myracrodruon urundeuva Allemão in vitro. The research was carried out at the Center for Strategic Technologies of the Northeast, in Recife / PE-Brazil M. urundeuva seeds were disinfected and submitted to two treatments: water (control) or NaCl (2mM), and inoculated in WPM medium at three saline concentrations (0.0; 25.0 and 50.0 mM NaCl) for 45 days. Plant height, number of leaves, fresh biomass (total, shoot, and root), shoot/root ratio, sodium and potassium and Na/K ratio, antioxidant enzyme activity, and peroxide content were evaluated malondialdehyde hydrogen. The data were subjected to variance analysis and the results were compared using the Student-Newman-Keuls test at 5% probability, using the R software. Seed priming with NaCl promoted a beneficial effect on the height of seedlings exposed to salinity. On the other hand, height was inversely proportional to saline concentrations, regardless of seed priming. The shoot/root ratio was also lower in seedlings cultivated under 25 and 50 mM NaCl. Despite being favorable for most growth variables, seed priming with NaCl induced an increase in lipid peroxidation in seedlings that were not exposed to salinity, which is linked to a decrease in the activity of antioxidant enzymes. The antagonistic response to NaCl stimulation between growth parameters and plant defense observed in the present research raises the need for further complementary studies that make it possible to delineate the metabolic alterations of M. urundeuva against a chemical stimulus to induce tolerance to a given stress.

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Caroba-tree and Brazilian peppertree germinative response to salinity stress and application of salicylic acid

Braga,

Santos,

Silveira

et al. 2024

Ornam. Hortic.

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Abiotic stresses, such as salinity, interfere with the growth and development of plants and can reduce, delay, or even inhibit the germination of the seeds. The knowledge about ornamental plants tolerance to those factors and the search for alternatives that reduce those effects, as is the use of salicylic acid, indicate paths to better development of the plants in environments affected by those stresses. This work aimed to evaluate the germination of Caroba-tree seeds and Brazilian peppertree seeds in different saline concentrations of sodium chloride (NaCl), using salicylic acid, as a possible saline stress attenuator. The experimental design utilized was completely randomized, with treatments arranged in factorial scheme 4 x 2 being four saline concentrations (0, 30, 60, and 90 mM of NaCl) combined with the absence (immersion in distilled water) or presence of salicylic acid (immersion in a solution containing salicylic acid at 1.0 mM). It was concluded that Caroba-tree showed moderate tolerance to salinity promoted by NaCl during seed germination. The average germination percentage was 83.91%. However, the seeds germinated at slower paces with the increasing saline solutions. The application of salicylic acid at the concentration of 1.0 mM did not influence the germination percentage of seeds subjected to saline solutions, regardless of the concentration. However, the seeds germinated faster in the absence of salicylic acid. Brazilian peppertree was not tolerant to salinity promoted by NaCl, with an average germination percentage of 47% and 40%, respectively, for the absence and presence of salicylic acid.

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Ácido salicílico atenua o efeito do estresse hídrico na germinação e crescimento inicial de plântulas de <i>Cereus jamacaru</i> DC

Cited by 3 publications

References 20 publications

Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Seed osmopriming with salicylic acid on induction of tolerance of Cenostigma pyramidale to water deficit

Effect of <i>seed priming</i> with NaCl on the induction of salinity tolerance in <i>Myracrodruon urundeuva</i> Allemão <i>in vitro</i>

Caroba-tree and Brazilian peppertree germinative response to salinity stress and application of salicylic acid

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