Sulfate nutrition improves short-term Al3+-stress tolerance in roots of Lolium perenne L

Vera-Villalobos, Hernán; Lunario-Delgado, Lizzeth; Pérez-Retamal, Diana; Román, Domingo; Leiva, Juan Carlos; Zamorano, Pedro; Mercado, Ana; Gálvez, Anita; Benito, C.; Wulff-Zottele, Cristián

doi:10.1016/j.plaphy.2020.01.011

Cited by 11 publications

(6 citation statements)

References 41 publications

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“…Induction of miR395 probably negatively regulates the SULTR2;1 gene, controlling the flow of sulfate from roots to aerial plant parts (Capaldi et al 2015) and consequently promoting the formation of the AlSO 4 + complex and detoxification of Al (Vera-Villalobos et al 2020) in the CTC-2 genotype (Figure 4). miR395 induction during sulfate deprivation and consequent SULTR2;1 repression has previously been established.…”

Section: Resultsmentioning

confidence: 99%

MicroRNAs regulate tolerance mechanisms in sugarcane (Saccharum spp.) under aluminum stress

Silva

Nogueira

et al. 2021

Crop Breed. Appl. Biotechnol.

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The agricultural yield of sugarcane (Saccharum spp.) is influenced by various abiotic stresses, including aluminum toxicity (Al 3+). MicroRNAs (miRNAs) play a role in plant tolerance to such stresses by modulating the expression of several important target genes involved in plant growth. This study investigated the possible tolerance mechanisms of two sugarcane genotypes (CTC-2 and RB855453) under Al 3+ stress through miRNA expression profiles and in silico analysis of target genes. The expression data obtained using RT-qPCR and coexpression network analysis identified two possible regulatory mechanisms in the tolerant genotype (CTC-2) under Al 3+ stress. miR395 was involved in Al 3+ detoxification, whereas miR160, miR6225-5p, and miR167 participated in the process of lateral root formation, conferring tolerance to the genotype. These findings might be useful for biotechnological strategies that aim for miRNA silencing or gene overexpression and provide subsidies for future genetic improvement programs aimed at the development of abiotic stress-tolerant sugarcane genotypes.

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Section: Resultsmentioning

confidence: 99%

MicroRNAs regulate tolerance mechanisms in sugarcane (Saccharum spp.) under aluminum stress

Silva

Nogueira

et al. 2021

Crop Breed. Appl. Biotechnol.

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“…Root tips affected with Al 3+ are demonstrated with detoxification mechanisms through cell wall modification. Reactive oxygen species and its exposure on outer surface of plasmamembrane induce a complex network in wall modifying enzymes [25]. There are a few noticeable over expressed proteins like expansions, xyloglucan endo-transglucosylase, pectin actyl esterase are responsible for cell wall elasticity as well as cross linking with secondary deposition.…”

Section: Aluminum-induced Oxidative Stress and Metabolic Alterationsmentioning

confidence: 99%

Exploring Aluminum Tolerance Mechanisms in Crops: A Comprehensive Review of Genetic, Metabolic, and Physiological Adaptations in Acidic Soils

Chakraborty,

Das,

Pal

et al. 2024

Preprint

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Aluminum (Al), making up a third of the Earth's crust, is a widespread toxic contaminant, particularly in acidic soils. It impacts crops at multiple levels, from the cellular to the whole plant. This review delves into aluminum's reactivity, including its cellular transport, involvement in oxidative redox reactions, development of specific metabolites, and the influence of genes on the production of membrane channels and transporters, as well as its role in triggering apoptosis leading to senescence. It discusses the involvement of channel proteins in calcium influx, vacuolar proton pumping, the suppression of mitochondrial respiration, and the initiation of programmed cell death. At the cellular nucleus level, the effects of Al on gene regulation through alterations in nucleic acid modifications, such as methylation and histone acetylation, are examined. The review in addition outlines the pathways of Al induced metabolic disruption specifically citric acid metabolism, regulation of proton excretion, induction of specific transcription factors, modulation of Al-responsive proteins, changes of citrate and nucleotide glucose transporters and overall metal detoxification pathways in tolerant genotypes. It also considers the expression of phenolic oxidases in response to oxidative stress, their regulatory feedback on mitochondrial cytochrome proteins, and their consequences on root development. Ultimately, the review focuses on the selective metabolic pathways that facilitate Al exclusion and tolerance, emphasizing compartmentalization, antioxidative defense mechanisms, and the control of programmed cell death to manage metal toxicity.

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“…Root tips affected with Al 3+ are demonstrated with detoxification mechanisms through cell wall modification. ROS and their exposure on the outer surface of the plasma membrane induce a complex network of wall-modifying enzymes [25]. There are a few noticeable overexpressed proteins like expansions, xyloglucan endo-transglucosylase, and pectin acetyl esterase, the latter of which is responsible for cell wall elasticity as well as crosslinking with secondary deposition.…”

Section: Aluminum-induced Oxidative Stress and Metabolic Alterationsmentioning

confidence: 99%

Exploring Aluminum Tolerance Mechanisms in Plants with Reference to Rice and Arabidopsis: A Comprehensive Review of Genetic, Metabolic, and Physiological Adaptations in Acidic Soils

Chakraborty,

Das,

Pal

et al. 2024

Plants

View full text Add to dashboard Cite

Aluminum (Al) makes up a third of the Earth’s crust and is a widespread toxic contaminant, particularly in acidic soils. It impacts crops at multiple levels, from cellular to whole plant systems. This review delves into Al’s reactivity, including its cellular transport, involvement in oxidative redox reactions, and development of specific metabolites, as well as the influence of genes on the production of membrane channels and transporters, alongside its role in triggering senescence. It discusses the involvement of channel proteins in calcium influx, vacuolar proton pumping, the suppression of mitochondrial respiration, and the initiation of programmed cell death. At the cellular nucleus level, the effects of Al on gene regulation through alterations in nucleic acid modifications, such as methylation and histone acetylation, are examined. In addition, this review outlines the pathways of Al-induced metabolic disruption, specifically citric acid metabolism, the regulation of proton excretion, the induction of specific transcription factors, the modulation of Al-responsive proteins, changes in citrate and nucleotide glucose transporters, and overall metal detoxification pathways in tolerant genotypes. It also considers the expression of phenolic oxidases in response to oxidative stress, their regulatory feedback on mitochondrial cytochrome proteins, and their consequences on root development. Ultimately, this review focuses on the selective metabolic pathways that facilitate Al exclusion and tolerance, emphasizing compartmentalization, antioxidative defense mechanisms, and the control of programmed cell death to manage metal toxicity.

show abstract

Sulfate nutrition improves short-term Al3+-stress tolerance in roots of Lolium perenne L

Cited by 11 publications

References 41 publications

MicroRNAs regulate tolerance mechanisms in sugarcane (Saccharum spp.) under aluminum stress

MicroRNAs regulate tolerance mechanisms in sugarcane (Saccharum spp.) under aluminum stress

Exploring Aluminum Tolerance Mechanisms in Crops: A Comprehensive Review of Genetic, Metabolic, and Physiological Adaptations in Acidic Soils

Exploring Aluminum Tolerance Mechanisms in Plants with Reference to Rice and Arabidopsis: A Comprehensive Review of Genetic, Metabolic, and Physiological Adaptations in Acidic Soils

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