Effect of salinity stress on phenolic compounds and carotenoids in buckwheat (Fagopyrum esculentum M.) sprout

Lim, Jeong‐Ho; Park, Kee-Jai; Kim, Bum-Keun; Jeong, Jong‐Min; Kim, Hyun‐Jin

doi:10.1016/j.foodchem.2012.05.068

Cited by 208 publications

(152 citation statements)

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“…An increase in phenolic compounds in the present study under salt stress are in agreement with the reports of Lim et al (2012);Mehr et al (2012) and Petridis et al (2012) in Fagopyrum esculentum, Anethum graveolens, and Olea europaea, respectively. Treatment with AMF further increased the total phenolic content in the present study.…”

Section: Discussionsupporting

confidence: 94%

Alleviation of salt-induced adverse impact via mycorrhizal fungi inEphedra aphyllaForssk

Alqarawi

2014

Journal of Plant Interactions

141

104

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The current investigation was carried out to examine the role of arbuscular mycorrhizal fungi (AMF) in alleviating adverse effects of salt stress in Ephedra aphylla. The plants were exposed to 75 and 150 mM sodium chloride (NaCl) stress with and without application of AMF. Salt stress caused significant decrease in chlorophyll and carotenoid contents; however, the application of AMF restored the pigments content in salt-affected plants. Proline, phenols, and lipid peroxidation were increased with increasing concentration of NaCl, but lower accumulation has been reported in plants treated with AMF. NaCl stress also showed increase in different antioxidant enzymes activities (catalase, ascorbate peroxidase, peroxidase, glutathione reductase, and superoxide dismutase), and further increase was observed in plants treated with AMF. The nutrient uptake, Na + and Na/K ratio increased and potassium and phosphorus were decreased with increasing concentration of NaCl in the present study. However, the colonization with AMF significantly increased K + and P and reduced Na + uptake. It is concluded that presown soil treatment with AMF reduced severity of salt stress in E. aphylla through alterations in physiological parameters, antioxidants and uptake of nutrients.Keywords: arbuscular mycorrhizal fungi; Ephedra aphylla; salinity; antioxidant enzymes; ion accumulation IntroductionDesertification or the disappearance of vegetation from arid land is an increasing problem worldwide including Saudi Arabia (SA). Abiotic stress leads to loss of natural resources such as plant biomass, biodiversity, and imparts a great role in global warming. Among the abiotic stresses, salinity is one of the main factor that contributes to desertification of arid lands. Soil salinization has become a great challenge for rehabilitation of range lands and plant productivity (Alqarawi et al. 2014). Salinity not only reduces yield of plants but also disrupts the ecological balance of the area. Stress tolerance of plants is a complex phenomenon involving changes at morphological, physiological, biochemical, and molecular levels and are undoubtedly the most important response of plants to the adverse environmental conditions (Rasool, Hameed, et al. 2013;Shaheen et al. 2013;Ahmad et al. 2014;Alqarawi et al. 2014). Salinity causes nutritional disorders in plants which lead to deficiencies of several nutrients and drastically increasing Na + levels in the plant cells (Iqbal & Ashraf 2013). The adverse effects of salt stress causes imbalance in the synthesis of endogenous plant growth regulators (PGR), hence a number of changes take place which disturb growth and physiological processes such as plant cell permeability, respiration, energy transport, and photosynthesis in plant cells (Ahmad et al. 2012;Iqbal & Ashraf 2013). Moreover, the salt stress also causes oxidative stress through the generation of reactive oxygen species (ROS), such as hydrogen peroxide, superoxide ions, singlet oxygen, and hydroxyl radical. These ROS cause deleterious effects on mitoc...

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Section: Discussionsupporting

confidence: 94%

Alleviation of salt-induced adverse impact via mycorrhizal fungi inEphedra aphyllaForssk

Alqarawi

2014

Journal of Plant Interactions

141

104

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“…Salinity is one of the most common environmental stress factors, which has a great impact on plant growth, metabolism, and even its distribution (Li 2002). Plant subjected to salt stress was threatened by water stress, decline of photosynthetic performance, and ion imbalance.…”

Section: Introductionmentioning

confidence: 99%

“…It could induce plant resistance to stress environment (Pál 2013). Existing study reported SA was helpful to induce antioxidase activity, adjust the ion absorption, promote secondary metabolites, and alleviate negative effects of salinity on the growth of different plants (Ananieva et al 2004;Lim et al 2012;Yildirim et al 2008). Therefore, SA was expected to be a potential growth regulator of plant under stress.…”

Section: Introductionmentioning

confidence: 99%

The physiological response of Artemisia annua L. to salt stress and salicylic acid treatment

Lin

Zhang

et al. 2014

Physiol Mol Biol Plants

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Salinity has a great influence on plant growth and distribution. A few existing reports on Artemisia annua L. response to salinity are concentrated on plant growth and artemisinin content; the physiological response and salt damage mitigation are yet to be understood. In this study, the physiological response of varying salt stresses (50, 100, 200, 300, or 400 mM NaCl) on A. annua L. and the effect of exogenous salicylic acid (0.05 or 0.1 mM) at 300-mM salt stress were investigated. Plant growth, antioxidant enzyme activity, proline, and mineral element level were determined. In general, increasing salt concentration significantly reduced plant growth. Superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were stimulated by salt treatment to a higher enzyme activity in treated plants than those in untreated plants. Content of proline had a visible range of increment in the salt-treated plants. Distribution of mineral elements was in inconformity: Na + and Ca 2+ were mainly accumulated in the roots; K + and Mg 2+ were concentrated in leaves and stems, respectively. Alleviation of growth arrest was observed with exogenous applications of salicylic acid (SA) under salt stress conditions. The activity of SOD and POD was notably enhanced by SA, but the CAT action was suppressed. While exogenous SA had no discernible effect on proline content, it effectively inhibited excessive Na + absorption and promoted Mg 2+ absorption. Ca 2+ and K + contents showed a slight reduction when supplemented with SA. Overall, the positive effect of SA towards resistance to the salinity of A. annua will provide some practical basis for A. annua cultivation.

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“…It may be explained by the fact that metabolism of 7-dayold buckwheat seedlings is strictly directed on fl avonoid production (the eff ects of elicitation are clearly visible). The amount of phenolic compounds and carotenoids in the buckwheat sprouts was also improved by treatment with various concentrations of NaCl (10, 50, 100, and 200 mM) (Lim et al, 2012). In case of 3-day-old sprouts the most eff ective was treatment with 100 mM NaCl (which eff ected an almost 100% increase).…”

Section: Discussionmentioning

confidence: 93%

Elicitation and treatment with precursors of phenolics synthesis improve low-molecular antioxidants and antioxidant capacity of buckwheat sprouts

Świeca

2016

Acta Sci Pol Technol Aliment

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An increased interest has been noticed in the modifi cation of food along each step of its production (breeding, production technology, storage condition). Briefl y speaking nutritional properties as well as the level and activity of bioactive compounds present in plant-origin food may be modifi ed using a range of technological ELICITATION AND TREATMENT WITH PRECURSORS OF PHENOLICS SYNTHESIS IMPROVE LOW-MOLECULAR ANTIOXIDANTS AND ANTIOXIDANT CAPACITY OF BUCKWHEAT SPROUTS ABSTRACTBackground. Recently, an increase of interest in the modifi cation of food products on each step of production (breeding, production technology, storage condition) is observed. Nutritional properties as well as level and activity of bioactive compounds in plant-origin food may be modifi ed using a range of technological and biotechnological practices and elicitation should be mentioned between them. Material and methods. Elicitation with willow bark infusion supported by feeding with the phenylpropanoid pathway precursors were used for improving the quality of buckwheat sprouts. Special emphasis has been placed on the metabolomic and biochemical changes and the mechanism of overproduction of low--molecular antioxidants.Results. The accumulation of phenolics is caused by stimulation of two main enzymes the phenylpropanoid pathway (tyrosine ammonia-lyase and phenylalanine ammonia-lyase). Tyrosine ammonia-lyase activities were eff ectively induced by feeding with tyrosine (about four times that of the control), whereas phenylalanine ammonia-lyase activity was the highest in the elicited control sprouts and those fed with shikimic acid (an increase by 60% compared to the control). Shikimic acid feeding (both elicited and non-elicited sprouts) eff ectively improved the total phenolics (by about 10% and 20%, respectively), condensed tannins (by about 30% and 28%, respectively), and fl avonoids (by about 46% and 70%, respectively). Signifi cant increase of vitexin, rutin, chlorogenic acid and isoorientin contents was also observed. The treatments increased the ascorbic acid content, too. Total antioxidant capacity of sprouts was most eff ectively increased by feeding with shikimic acid and further elicitation. Conclusion. The studies transfer biotechnology commonly used for the induction of overproduction of secondary metabolites in plant cell line systems to low-processed food production. The obtained results could be used for better understanding of the eff ect of elicitation and precursor feeding on antioxidants production and contribute to improving the buckwheat sprouts quality.

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Effect of salinity stress on phenolic compounds and carotenoids in buckwheat (Fagopyrum esculentum M.) sprout

Cited by 208 publications

References 33 publications

Alleviation of salt-induced adverse impact via mycorrhizal fungi inEphedra aphyllaForssk

Alleviation of salt-induced adverse impact via mycorrhizal fungi inEphedra aphyllaForssk

The physiological response of Artemisia annua L. to salt stress and salicylic acid treatment

Elicitation and treatment with precursors of phenolics synthesis improve low-molecular antioxidants and antioxidant capacity of buckwheat sprouts

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