Interactive effects of aluminum and cadmium on phenolic compounds, antioxidant enzyme activity and oxidative stress in blueberry ( Vaccinium corymbosum L.) plantlets cultivated in vitro

Manquián-Cerda, Karen; Cruces, Edgardo; Escudey, Mauricio; Zúñiga, Gustavo E.; Calderón, R.

doi:10.1016/j.ecoenv.2017.12.050

Cited by 60 publications

(24 citation statements)

References 65 publications

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“…Overproduction of ROS has been observed earlier in many other species under HM stress (Nahar et al 2016; Rajpoot et al 2016; Muszyńska et al 2018). Thus, for a long time, ROS have been considered as dangerous molecules, whose levels need to be kept as low as possible (Schützendübel and Polle 2002; Manquián-Cerda et al 2018; Ghori et al 2019). Recently, it has been also realized that ROS play an integral role as signaling molecules in the regulation of numerous biological processes and plant responses to abiotic and/or biotic stresses (Miller et al 2008; Baxter et al 2014; Rajpoot et al 2016; Waszczak et al 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Some of them are highly widespread in plant kingdom, while the others are specific for family or even species (Cheynier 2012; Kisa et al 2016; Vidot et al 2019). The protective role of phenols could be explained by their diversified levels depending on stress conditions (Kováčik and Klejdus 2008; Marguez-Garcia et al 2009; Manquián-Cerda et al 2018; Muszyńska et al 2019). Additionally, excess amounts of ROS can be removed by reduced glutathione (GSH).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of heavy metal-induced responses in Silene vulgaris ecotypes

et al. 2019

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Silene vulgaris is a pseudometallophyte that spontaneously occurs in various ecological niches. Therefore, three ecotypes of this species representing calamine (CAL), serpentine (SER), and non-metallicolous (NM) populations were investigated in this study. Owing to the presence of Pb or Ni ions in natural habitats from metallicolous populations originated, we used these metals as model stressors to determine the survival strategy of tested ecotypes and analyze metal distribution at various levels of organism organization. We focused on growth tolerance, non-enzymatic antioxidants, and photosynthetic apparatus efficiency as well as anatomical and ultrastructural changes occurred in contrasting ecotypes exposed in vitro to excess amounts of Pb 2+ and Ni 2+ . Although Ni application contributed to shoot culture death, the study revealed that the mechanisms of Pb detoxification differed between ecotypes. The unspecific reaction of both metallicolous specimens relied on the formation of effective mechanical barrier against toxic ion penetration, while the Pb appearance in the protoplasts led to the activation of ecotype-specific intracellular defense mechanisms. Hence, the response of CAL and SER ecotypes was almost unchanged under Pb treatment, whereas the reaction of NM one resulted in growth disturbances and physiological alternations. Moreover, both metallicolous ecotypes exhibited increase generation of reactive oxygen species (ROS) in leaves, even before the harmful ions got into these parts of plants. It may implicate the potential role of ROS in CAL and SER adaptation to heavy metals and, for the first time, indicate on integral function of ROS as signaling molecules in metal-tolerant species.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of heavy metal-induced responses in Silene vulgaris ecotypes

et al. 2019

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“…These heavy metals cause high toxicity in plants, because they increase the oxidative stress by the production of reactive oxygen species (ROS). The authors of the study suggest that the phenolic compounds, specifically chlorogenic and ellagic acids, Figure 11, reduce the ROS in blueberry plants [33].…”

Section: Factors That Induce the Synthesis Of Phenolic Compounds In Pmentioning

confidence: 98%

Shikimic Acid Pathway in Biosynthesis of Phenolic Compounds

Santos-Sánchez¹,

Salas-Coronado²,

Hernández-Carlos³

et al. 2019

Plant Physiological Aspects of Phenolic Compounds

142

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Phenolic compounds are secondary metabolites found most abundantly in plants. These aromatic molecules have important roles, as pigments, antioxidants, signaling agents, the structural element lignan, and as a defense mechanism. The expression of phenolic compounds is promoted by biotic and abiotic stresses (e.g., herbivores, pathogens, unfavorable temperature and pH, saline stress, heavy metal stress, and UVB and UVA radiation). These compounds are formed via the shikimate pathway in higher plants and microorganisms. The enzymes responsible for the regulation of phenolic metabolism are known, and shikimic acid is a central metabolite. The shikimate pathway consists of seven reaction steps, beginning with an aldol-type condensation of phosphoenolpyruvic acid (PEP) from the glycolytic pathway, and D-erythrose-4-phosphate, from the pentose phosphate cycle, to produce 3-deoxy-D-arabino-heptulosonic acid 7-phosphate (DAHP). A key branchpoint compound is chorismic acid, the final product of the shikimate pathway. The shikimate pathway is described in this chapter, as well as factors that induce the synthesis of phenolic compounds in plants. Some representative examples that show the effect of biotic and abiotic stress on the production of phenolic compounds in plants are discussed.

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“…Therefore, phenolic compounds exert their effects by scavenging ROS or avoiding their generation [ 14 , 15 ]. The scavenging ROS activity of phenolic compounds are determined by their chemical structure, type and number of functional groups [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Responses of Phenolic Compounds and Immobilization of Copper in Imperata cylindrica, a Plant with Potential Use for Bioremediation of Cu Contaminated Environments

Vidal

Ruíz

Ortiz

et al. 2020

Plants

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This work examined the capability of Imperata cylindrica to respond, tolerate and accumulate Cu when growing at high Cu concentration (300 mg kg−1 of substrate) at different times of exposure (2, 14 and 21 days). The Cu accumulation in plants was examined by atomic absorption spectroscopy (AAS) and Cu localized by Scanning Electron Microscopy-Energy Dispersive X-Ray spectroscopy. Additionally, the phenolic compound identifications and concentrations were determined using liquid chromatography coupled to mass spectrometry. Our results showed that root biomass decreased significantly at high Cu levels, with a greater decrease at 21 days (39.8% less biomass in comparison to control). The root showed 328 mg Cu kg−1 dry weight at 21 days of exposure to Cu, being the tissue that accumulates most of the Cu. Lipid peroxidation was a clear indicator of Cu stress, principally in shoots. The exposure to Cu significantly increased the synthesis of phenolic compounds in shoots of plants exposed 21 days to Cu, where 5-caffeoylquinic acid reached the highest concentrations. Our results support that I. cylindrica is a Cu accumulator plant in root organs with a medium level of accumulation (between 200–600 mg Cu kg−1 biomass), which can tolerate the exposure to high Cu levels by means of increasing the synthesis of phenolic compound in shoots, suggesting a potential use as phytoremediation tool in Cu polluted environments.

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Interactive effects of aluminum and cadmium on phenolic compounds, antioxidant enzyme activity and oxidative stress in blueberry ( Vaccinium corymbosum L.) plantlets cultivated in vitro

Cited by 60 publications

References 65 publications

Evaluation of heavy metal-induced responses in Silene vulgaris ecotypes

Evaluation of heavy metal-induced responses in Silene vulgaris ecotypes

Shikimic Acid Pathway in Biosynthesis of Phenolic Compounds

Antioxidant Responses of Phenolic Compounds and Immobilization of Copper in Imperata cylindrica, a Plant with Potential Use for Bioremediation of Cu Contaminated Environments

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