Photosynthetic metabolism and antioxidant in Ormosia arborea are modulated by abscisic acid under water deficit?

Bastos, S S; Scalon, Silvana de Paula Quintão; Souza, Ana Paula Rissato de; Dresch, Daiane Mugnol; Junglos, Fernanda Soares; Scalon, Lourenço Quintão; Mussury, Rosilda Mara; Freitas, V M B

doi:10.1590/1519-6984.244331

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…The relationship between total chlorophyll content and low soil water availability is a complex variable, as it depends on the phenotypic plasticity of the plant to tolerate the low availability of water in the substrate. However, water deficit generally leads to low chlorophyll content (Freitas et al, 2020;Bastos et al, 2021). Thus, this relationship may be reversible through physiological mechanisms that prevent or minimize the degradation of these photosynthetic pigments, such as shading.…”

Section: Discussionmentioning

confidence: 99%

“…Plant species with greater phenotypic plasticity exhibit changes in morphology and response to the environment, enabling them to adapt to new conditions to maximize resource acquisition (Esperon-Rodriguez et al, 2020). The greater the degree of plasticity, the greater the ability to acclimate and survive in unfavorable environmental conditions (Barbosa et al, 2021;Bastos et al, 2021;Santos et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

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Ecophysiological mechanisms and growth of Inga vera Willd. under different water and light availability

Cerqueira,

Scalon,

Santos

et al. 2023

Braz. J. Biol.

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Light and water availability can impact plant survival and growth, making ecophysiological studies crucial for understanding their tolerance and to single and combined stresses. The aimed of this study was to investigate the physiological and growth responses of Inga vera Willd. plants induced by different water regimes and light intensities. Three water regimes were implemented based on substrate water retention capacity (WRC) - 50%, 75%, and 100%, along with shading levels (SH) - 0% (full sun), 30%, and 70%. Evaluations were conducted at 25 and 50 days after applying the water regimes, and during a recovery period of 30 days when all treatments were maintained at 75% of WRC. Photochemical efficiency, gas exchange, chlorophylls indices, growth, quality of the seedlings and content proline amino acid were assessed. Overall, I. vera plants showed greater sensitivity to increased exposure to light than to low water availability. The interaction of SH + WRC was beneficial for the gas exchange and chlorophylls indices characteristics under SH 70% + WRC 75-100% at 25 and 50 days, with higher results, greater plant growth and higher proline contents for leaves and roots under SH 30% and 70% + WRC 50%, 75% and 100% at 25 and 50 days. There was no recovery effect for seedlings grown in full sun. The plants grown under shade during the recovery period maintained their values for most of the characteristics evaluated. SH 30% + WRC 75% contributed to an increase in photosynthetic metabolism and, as a result, to the quality of the seedlings.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecophysiological mechanisms and growth of Inga vera Willd. under different water and light availability

Cerqueira,

Scalon,

Santos

et al. 2023

Braz. J. Biol.

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show abstract

“…The complex anatomy of plant leaves played a key role in plant growth and development, which related to the response of the water deficit (Barbour and Farquhar 2004 ). Detection of leaf water potential was one of the best method to measure plant water deficit, that was usually used to guide the amount of irrigation water in planting (Bastos et al 2022 ). Although there were many methods of measuring the leaf water potential, it remained to be determined which method will be most accurate in the context of RDI (Atherton et al 2012 ; Cheng et al 2011 ; Higa et al 2013 ; Sperry et al 1996 ; Ullah et al 2013 ; Yi et al 2013 ; Zhang et al 2012 ).…”

Section: The Mechanism Of Rdi Theorymentioning

confidence: 99%

Regulated deficit irrigation: an effective way to solve the shortage of agricultural water for horticulture

Yang

et al. 2022

Stress Biology

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The deficient agricultural water caused by water shortage is a crucial limiting factor of horticultural production. Among many agricultural water-saving technologies, regulated deficit irrigation (RDI) has been proven to be one of the effective technologies to improve water use efficiency and reduce water waste on the premise of maintaining the quality of agricultural products. RDI was first reported more than 40 years ago, although it has been applied in some areas, little is known about understanding of the implementation method, scope of application and detailed mechanism of RDI, resulting in the failure to achieve the effect that RDI should have. This review refers to the research on RDI in different crops published in recent years, summarizes the definition, equipment condition, function, theory illumination, plant response and application in different crops of RDI, and looks forward to its prospect. We expect that this review will provide valuable guidance for researchers and producers concerned, and support the promotion of RDI in more horticultural crops.

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“…Ormosia arborea (Vell.) Harms (Fabaceae: Papilionoideae) is a species native to the Atlantic forest and the Cerrado, it can grow in riparian environments or in well-drained soil, and its introduction into plantations for recovery of degraded areas is recommended to stimulate recovery (Junglos et al 2018;Bastos et al 2022). The physical dormancy of its seeds, which is caused by seed coat impermeability, can be overcome by chemical scarification with sulfuric acid for 15 minutes (Silva et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Tolerance of Ormosia arborea (Fabaceae) seed to water submersion

Junglos

Dresch

et al. 2022

Rodriguésia

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Soil flooding restricts the availability of the oxygen necessary to activate the embryonic physiological processes that characterize seed germination. However, some species have adaptations that allow them to grow naturally in areas prone to flooding, such as Ormosia arborea, a native species of the Atlantic forest and the Cerrado. The objective of this work was to evaluate how seed germination and emergence in this species were affected by submersion in water and scarification. In experiment 1, the seeds were scarified by 15 minutes in sulfuric acid and was subsequently sown in tubes submerged in water for 0, 15, 30 and 45 days. In experiments 2 and 3, seeds were submerged in running water for the same period and, after each time of submersion, were scarified by 0, 5, 10 and 15 minutes in sulfuric acid and sown either in tubes and in Germitest® paper. It was found that, after breaking the tegumental dormancy, 15 days of flooding is enough to derail the germination of O. arborea seeds that tolerate submersion in water when they are intact. This response indicates that the hard, impermeable seed coat is an important seed characteristic for this response.

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Photosynthetic metabolism and antioxidant in Ormosia arborea are modulated by abscisic acid under water deficit?

Cited by 6 publications

References 17 publications

Ecophysiological mechanisms and growth of Inga vera Willd. under different water and light availability

Ecophysiological mechanisms and growth of Inga vera Willd. under different water and light availability

Regulated deficit irrigation: an effective way to solve the shortage of agricultural water for horticulture

Tolerance of Ormosia arborea (Fabaceae) seed to water submersion

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