DIVERSIDADE ESTRUTURAL EM &lt;i&gt;Eugenia&lt;/i&gt; L. (MYRTACEAE)

Santos, Sidinei Rodrigues dos; Marchiori, José Newton Cardoso; Siegloch, Anelise Marta

doi:10.5902/1980509815740

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…Native species represent a genetic heritage of great value and potential for economic and ecological expression, such as the Eugenia myrcianthes Nied (Myrtaceae), a deciduous tree species popularly known as "Pessegueiro-do-mato", whose fruits and leaves have antibacterial activity (Dexheimer and Pozzobon 2017). In addition, its fruits show food potential, in natura or processed, as sweets, liqueurs, and jams (Santos et al 2014), and are attractive to wild birds (Almeida et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Does silicon inEugenia myrcianthes Nied. seedlings under water stress contribute in the tolerance and recovery?

Foresti

Scalon

Santos

et al. 2023

Preprint

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Purpose: Silicon (Si) could contribute to the stability of photosystem II processes and gas exchange. Moreover, it can increase antioxidant enzyme activity, maintaining the growth of E. myrcianthes under water fluctuation, favoring seedling tolerance and recovery after stress suspension. This study aimed to evaluate the silicon effect on E. myrcianthes subjected to water fluctuation and the potential recovery of photosynthetic and enzymatic metabolism and seedling growth after stress suspension. Methods: Two water regimes: continuous irrigation (I), with 75% of the water retention capacity of the substrate, and water stress (E), with irrigation suspension followed by flooding. The water regimes were associated with different Si concentrations: 0, 2, and 4 mmol L-1. The seedlings were evaluated in five periods: Time zero (T0), with initial evaluations and irrigation suspension; First photosynthesis close to zero under water deficit - 1st P0; First recovery - 1st REC; Second photosynthesis close to zero under flooding - 2nd P0; Second recovery - 2nd REC. Results: Water fluctuation negatively affected the photosynthetic and enzymatic metabolism of E. myrcianthes. However, we observed 100% survival of all seedlings, suggesting the physiological plasticity of the species. Applying 2 mmol L-¹ of silicon to the seedlings helped them tolerate the stressful effect of water fluctuation. Conclusion: Water stress decreased the development of E. myrcianthes seedlings, damaging the photochemical and biochemical metabolism of photosynthesis, increasing antioxidant enzyme activity, and reducing root growth and seedling quality. However, Si application at concentrations of 2 mmol L-¹ mitigated water stress effects, favoring seedling development and tolerance to water fluctuation. The species can adjust to stressful conditions and shows potential for survival and tolerance at this developmental stage, recovering its metabolism and growth after stress.

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Section: Introductionmentioning

confidence: 99%

Does silicon inEugenia myrcianthes Nied. seedlings under water stress contribute in the tolerance and recovery?

Foresti

Scalon

Santos

et al. 2023

Preprint

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Identification of woods from museum archaeological collections: use of local and non-local wood in pre-Columbian societies from northwestern Argentina

Sprovieri

Baldini

Rivera

2018

Archaeol Anthropol Sci

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Does hydrogel help in the mitigation and recovery of Eugenia myrcianthes Nied. under water stress?

Silverio,

Santos,

Silva

et al. 2024

Rev. Caatinga

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Water deficit or flooding can damage the photosynthetic and enzymatic metabolism in plants such as Eugenia myrcianthes Nied. Thus, knowledge of technologies that can mitigate stress damage is necessary for the ex-situ cultivation of these species. This study evaluates the potential of hydrogel (H) to mitigate water stress and assist in the recovery of E. myrcianthes seedlings under different water conditions. The seedlings were separated into three water regimes: R1 - continuous irrigation (control); R2 - intermittent stress, characterized by two stress cycles: water restriction followed by flooding (stress); and R3 - intermittent stress + hydrogel - Forth® gel (stress + H). Evaluations occurred in six periods: zero time (T0), 1st zero photosynthesis (P0), 1st recovery (REC), 2nd P0, 2nd REC, and END. E. myrcianthes seedlings responded to water conditions with reduced CO2 assimilation rate, transpiration, and stomatal conductance during stressful conditions. We observed decrease in the growth parameters of this species under stress, including leaf area and biomass. Under stress, independent of H, plants increased the activity of the enzymes superoxide dismutase, peroxidase, and the content of the amino acid proline. We observed recovery potential in most of the evaluated traits. E. myrcianthes seedlings showed morphophysiological changes due to water deficit and flooding. Still, hydrogel did not contribute to alleviating the effects of water deficit on gas exchange and did not affect flooding. Seedlings showed survival and resumption of metabolism and growth after stressful conditions. This demonstrates their resilience due to physiological plasticity, regardless of the use of hydrogel.

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DIVERSIDADE ESTRUTURAL EM <i>Eugenia</i> L. (MYRTACEAE)

Cited by 4 publications

References 3 publications

Does silicon inEugenia myrcianthes Nied. seedlings under water stress contribute in the tolerance and recovery?

Does silicon inEugenia myrcianthes Nied. seedlings under water stress contribute in the tolerance and recovery?

Identification of woods from museum archaeological collections: use of local and non-local wood in pre-Columbian societies from northwestern Argentina

Does hydrogel help in the mitigation and recovery of Eugenia myrcianthes Nied. under water stress?

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