Ecophysiological response of Lippia gracilis (Verbanaceae) to duration of salt stress

Oliveira, Francisco Fábio Mesquita; Morais, Marciana Bizerra de; Silva, Marcos Emanuel de Souza; Saraiva, Yáskara Karine Fernandes; Arruda, Maria Valdiglezia de Mesquita; Silva, Jéssica Nayara Costa e; Albuquerque, Cynthia Cavalcanti de

doi:10.1016/j.ecoenv.2019.04.016

Cited by 16 publications

(11 citation statements)

References 43 publications

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“…These different responses between the present study and that conducted by Oliveira et al (2019) may be linked to the source of salinity used. The e uent from tilapia cultivation has a signi cant amount of nutrients originated from the feeds used in the diets of sh and animal excretes; possibly, the nutrients added to the soil reduce the deleterious effects of salinity of the saline nutrient solution, especially the effects of chloride and sodium toxicity on the plants, causing them to have greater tolerance to salinity when fertigation is used as a water and nutritional source in the crops.…”

Section: Discussioncontrasting

confidence: 76%

“…According to literature reports, conditions of low and high salinity of irrigation water do not interfere with the yield of the essential oil of L. gracilis species (Oliveira et al 2019). Based on the published data, the results obtained showed coherence because the most frequent components to appear in the essential oils of many species of Lippia are limonene, β-caryophyllene, p-cymene, camphor, linalool, α-pinene and thymol (Pascoal et al 2001).…”

Section: Discussionmentioning

confidence: 88%

“…As the species focused on in the study produces an essential oil with antimicrobial property and has shown tolerance to salinity in studies conducted in greenhouse (Ragagnin et al 2013;Oliveira et al 2019), it is important to enable its planting using saline e uent and/or in areas already salinized. The use of this native species of the Caatinga that is tolerant to salinity and maintains its chemical compounds potentially active opens perspectives to offer a product that can be marketed in the chemical industries, especially in pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

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Does Fertigation With Fish Farming Effluent Alter the Morphophysiology and Biochemistry of Lippia Gracilis (Verbenaceae)?

Neto

Morais

Dias

et al. 2021

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In order to evaluate the response mechanisms of L. gracilis fertigated with saline effluent from fish farming, L. gracilis plants were nourished with fish farming effluent with electrical conductivity of 0.45, 2.68, 4.60, 5.55 and 7.02 dS m− 1 for 60 days. The experiment was carried out in the open field using a completely randomized design with five treatments and four replicates. The salinity levels of the nutrient solution containing fish farming effluent did not affect the leaf and stem biomass production, relative water content and leaf area of the studied species. The activity of antioxidant enzymes varied when the nutrient solution salinity level was increased, which also stimulated the breakdown of starch reserves, but did not interfere with the biochemical parameters proline, photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids), levels of membrane damage and malondialdehyde, indicating that the plant showed no stress symptoms when fertigated with high-salinity effluent. The anatomy of L. gracilis leaf cross-sections shows a unistratified epidermis with glandular and non-glandular trichomes in the adaxial and abaxial sides. Plants that received only fish farming effluent (7.02 dS m− 1) showed a 25% reduction in the number of xylem bundles in the midrib region, compared to the control. The yield, chemical composition and antimicrobial activity of the essential oil extracted from L. gracilis leaves did not differ between treatments. Thus, the saline effluent from fish farming can be used in the fertigation of L. gracilis without compromising plant yield, avoiding environmental contamination with disposal in soil and/or water bodies.

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Section: Discussioncontrasting

confidence: 76%

Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Does Fertigation With Fish Farming Effluent Alter the Morphophysiology and Biochemistry of Lippia Gracilis (Verbenaceae)?

Neto

Morais

Dias

et al. 2021

Preprint

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“…Due to the semiarid climate in the western region of Rio Grande Norte, the cultivation of important crops requires the use of fertigation, which over time salinizes and degrades the soil. This problem is associated with the abandonment of agricultural land, causing environmental damage and social problems (OLIVEIRA et al, 2019). To make use of these soils, it is necessary to investigate plant species that are adapted to semiarid conditions with the potential to generate income people living in the region.…”

Section: Introductionmentioning

confidence: 99%

“…Salinity causes major disturbances in most plant species, resulting in growth restriction and productivity loss, triggering an imbalance in the plant's redox system and causing physiological stress, which can impair growth and development (MORAIS et al, 2018;OLIVEIRA et al, 2019). A strategy that has been investigated to minimize the deleterious effects of excess salt in plants is the symbiotic association of plants with arbuscular mycorrhizal fungi (AMF).…”

Section: Introductionmentioning

confidence: 99%

Mycorrhization and saline stress response in Hyptis suaveolens

et al. 2020

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The objective of this study was to evaluate the physiological and biochemical mechanisms of adaptation of Hyptis suaveolens under osmotic stress due to salinity inoculations with a mycorrhizal fungal species. H. suaveolens seeds were germinated in polyethylene pots containing a substrate associated with or without arbuscular mycorrhizal fungi (AMF). After plant formation, treatments were treated with different salt concentrations (0.0, 35, 70, and 105 mM) and fungi (control and two types of AMF), totaling 12 treatments with three replicates. The experimental design used randomized blocks in a 4 x 3 factorial scheme, totaling 12 treatments with three replicates each. Salinity affected all measured physiological and biochemical variables, and the stress reduced dry matter content. Plants associated with AMF had increased dry matter compared to non-associated plants, and there were increased biochemical and physiological responses of AMF-colonized plants in the 35 mM NaCl treatment. However, saline stress negatively affected the development of H. suaveolens; and therefore, no attenuation of fungi was observed.

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