Salinity and drought stresses improve antioxidant potential of Allium roseum L., an edible medicinal plant

Najjaa, Hanen; Boubakri, Abdelbasset; Arfa, Abdelkarim Ben; Zouari, Nacim; Neffati, Mohamed

doi:10.1007/s11738-018-2774-9

Cited by 9 publications

(6 citation statements)

References 37 publications

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“…Ascorbic acid is one of the most essential metabolite for plants which acts as a cofactor for photosynthetic enzymes and enzymes involved in biosynthesis of phytohormones, anthocyanins, and the antioxidants regeneration. Plants exposed to drought and salinity, such as the analysed halophytes, has increased ascorbic acid content (Ahanger et al, 2017) in order to develop an adaptive strategy to stress caused by salinity conditions and water deficit (Najjaa et al, 2018).…”

Section: Vitamins Contentmentioning

confidence: 99%

Revalorization of Tunisian wild Amaranthaceae halophytes: Nutritional composition variation at two different phenotypes stages

Zaier

Ciudad‐Mulero

Cámara

et al. 2020

Journal of Food Composition and Analysis

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Wild halophytes are traditionally consumed in Tunisia as gourmet vegetables due to their salty taste and organoleptic proprieties. However, their nutritional composition is not deeply studied. The aim of this study was to characterize three Tunisian wild halophytic species (Arthrocnemum indicum (Willd.) Moq, Halocnemum strobilaceum (Pall.) M. Bieb., and Suaeda fruticosa Forssk) at two different phenotypic stages according to the seasonal variation. Amaranthaceae, is one of the well spread halophytes family shrubs in the world, mainly in Mediterranean countries. The studied wild halophytes are an interesting source of nutrients and could be considered as healthy foods with high levels of dietary fibers (7.63-10.14 g/100 g fw), protein (2.45-4.14 g/100 g fw), n-3 polyunsaturated fatty acids in green phenotypic stage (29.87 %-40.5 %) and n-6 polyunsaturated fatty acids in red-violet phenotypic stage (25.4 %-75.26 %), with particular relevance to linolenic acid content (20.7 %-75.22 %). These halophytes are also a good source of minerals, particularly sodium, calcium, potassium and magnesium, as well as vitamins C and E, with a major abundance of α-tocopherol.

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Section: Vitamins Contentmentioning

confidence: 99%

Revalorization of Tunisian wild Amaranthaceae halophytes: Nutritional composition variation at two different phenotypes stages

Zaier

Ciudad‐Mulero

Cámara

et al. 2020

Journal of Food Composition and Analysis

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“…A study reported by Rodrigues et al also showed an increase in total phenolic content in red onions due to drought conditions [ 43 ]. Moreover, Najjaa et al reported significantly increased antioxidant activity as measured by DPPH and a significantly higher total antioxidant activity caused by drought-induced stress in A. roseum [ 44 ]. The discrepancy between the reported results could arise from different experimental designs, including the choice of medium for drought simulation, such as the use of PEG or water deprivation; the duration and severity of the induced stress; and the physiological maturity of the plant at the chosen sampling point.…”

Section: Discussionmentioning

confidence: 99%

The Interplay of Physiological and Biochemical Response to Short-Term Drought Exposure in Garlic (Allium sativum L.)

Kovačević,

Išić,

Major

et al. 2023

Plants

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The impacts of global climate change and a rapid increase in population have emerged as major concerns threatening global food security. Environmental abiotic stress, such as drought, severely impairs plants’ morphology, physiology, growth, and yield more than many other environmental factors. Plants use a complex set of physiological, biochemical, and molecular mechanisms to combat the negative effects caused by drought-induced stress. The aim of this study was to investigate morphological, spectral, physiological, and biochemical changes occurring in 30 garlic accessions exposed to short-term drought stress in a greenhouse setting and to identify potential early drought-induced stress markers. The results showed that, on average, garlic plants exposed to drought conditions exhibited a decrease in assimilation, transpiration, and stomatal conductance of 39%, 52%, and 50%, respectively, and an average increase in dry matter and proline content of 10.13% and 14.29%, respectively. Nevertheless, a significant interaction between the treatment and accessions was observed in the investigated photosynthetic and biochemical parameters. The plants’ early response to drought ranged from mild to strong depending on garlic accession. Multivariate analysis showed that accessions with a mild early drought response were characterized by higher values of assimilation, transpiration, and stomatal conductance compared to plants with moderate or strong early drought response. Additionally, accessions with strong early drought response were characterized by higher proline content, lipid peroxidation, and antioxidant capacity as measured by FRAP compared to accessions with mild-to-moderate early drought response.

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“…Zaher-Ara et al (2016) showed that accumulation of soluble sugars was involved in drought tolerance in citrus plants. Najjaa et al (2018) reported that soluble sugars increased in Allium roseum in both salt and drought stress conditions. On the other hand, Abdallah et al (2016) demonstrated that the exogenous application of trehalose reduced the adverse effects of salinity stress in rice plants.…”

Section: 3accumulations Of Carbohydratesmentioning

confidence: 99%

“…At the beginning of salinity or drought stress, the accumulation of osmotic regulating substance in the cytoplasm leads to protection of cellular functions. Also, these compounds increase the activity of antioxidant enzymes and protect the activity of enzymatic systems (Ashraf and Foolad, 2007;Wei et al, 2009;Hossain and Fujita, 2010;Hayat et al, 2012;Kaya et al, 2013;Theerakulpisut and Phongngarm, 2013;Filippou et al, 2014;Najjaa et al, 2018;Khalid et al, 2020). Several studies have looked at the effect of exogenous application of osmoprotectant substances on the growth and tolerance in drought and salinity stressed plants (Mäkelä et al, 2019;Nakhaie et al, 2020).…”

Section: 1production Of Substances That Affect Osmotic Adjustmentmentioning

confidence: 99%

Physiological, biochemical, and metabolic responses of abiotic plant stress: salinity and drought

Goharrizi¹,

Hamblin²,

Karami³

et al. 2021

Turk J Bot

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The most important types of abiotic stress that affect agricultural crops throughout the world, are drought and salinity. These stresses will continue to worsen as the current climate crisis progresses. Plants have evolved a complex set of mechanisms in order to protect themselves from salt and drought. At the macrobiological level, these include alterations in growth rate, water balance, antioxidant defenses, and photosynthesis. Altered metabolites include proline, carbohydrates, glycine betaine, gamma-aminobutyric acid, and polyamines. It is not surprising, thus, that one of the most important research areas of plant biology is the study of plant responses to abiotic stress and stress tolerance mechanisms. The methods, used in this study, are diverse, including the study of physiological properties, and biochemical research, and metabolomics approaches toward abiotic stress. This awareness 2 should lead to the development of (near) future, sustainable and better-adapted agriculture in the sense of global warming and environmental emission scenarios. Also, different information presented in this overview can be regarded by the scientific community to produce tolerant cultivars in response to salinity and drought stresses.

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Salinity and drought stresses improve antioxidant potential of Allium roseum L., an edible medicinal plant

Cited by 9 publications

References 37 publications

Revalorization of Tunisian wild Amaranthaceae halophytes: Nutritional composition variation at two different phenotypes stages

Revalorization of Tunisian wild Amaranthaceae halophytes: Nutritional composition variation at two different phenotypes stages

The Interplay of Physiological and Biochemical Response to Short-Term Drought Exposure in Garlic (Allium sativum L.)

Physiological, biochemical, and metabolic responses of abiotic plant stress: salinity and drought

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