Na2SO4 and NaCl salts differentially modulate the antioxidant systems in the highly stress tolerant halophyte Prosopis strombulifera

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Mariana Reginato
  • Ana M. Cenzano
  • Idris Arslan
  • Ana Furlán
  • Celeste Varela
  • Vanina Cavallin
  • Jutta Papenbrock
  • Virginia Luna

Research Organisations

External Research Organisations

  • Universidad Nacional de Rio Cuarto
  • CONICET
  • Zonguldak Karaelmas University
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Details

Original languageEnglish
Pages (from-to)748-762
Number of pages15
JournalPlant physiology and biochemistry
Volume167
Early online date8 Sept 2021
Publication statusPublished - Oct 2021

Abstract

Prosopis strombulifera (Lam.) Benth. is a halophytic shrub abundant in high-salinity areas in central Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the modulation of the antioxidant systems (enzymatic and non-enzymatic components) was analyzed under different salt treatments (NaCl, Na2SO4 and the iso-osmotic mixture) in hydroponic cultivation. Na2SO4-treated plants showed strong indications of oxidative stress (H2O2 and O2-• increase). Modifications in antioxidant enzymes activities were observed mainly under Na2SO4 treatment, where CAT seems to play an important role in early detoxification of H2O2 in roots, whereas SOD and APX have a predominant role in leaves. As part of the non-enzymatic system, 21 compounds were identified in leaves, being polyphenols the most abundant. Control plants contained the major variety of detected phytochemicals (14). Na2SO4-treated plants contained 10 compounds and NaCl-treated plants nine compounds, but with a different profile. NaCl-treated plants showed the highest antioxidant capacity. Our findings confirm that different types of salt treatments provoke a differential modulation of the antioxidant systems. Polyphenols and other ROS-detoxifying compounds, in a joint action with the enzymatic antioxidant system, are proposed to have a fundamental role in the cellular protection of P. strombulifera plants under severe oxidative stress. Our findings also highlight the potential of this halophyte as a valuable source of bioactive compounds with high antioxidant activity and health benefits.

Keywords

    Enzymatic antioxidants, NaSO, NaCl, Non-enzymatic antioxidants, Oxidative stress, Polyphenols, Reactive oxygen species (ROS)

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Physiology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Genetics
  • Agricultural and Biological Sciences(all)
  • Plant Science

Cite this

Na2SO4 and NaCl salts differentially modulate the antioxidant systems in the highly stress tolerant halophyte Prosopis strombulifera. / Reginato, Mariana; Cenzano, Ana M.; Arslan, Idris et al.
In: Plant physiology and biochemistry, Vol. 167, 10.2021, p. 748-762.

Research output: Contribution to journalArticleResearchpeer review

Reginato M, Cenzano AM, Arslan I, Furlán A, Varela C, Cavallin V et al. Na2SO4 and NaCl salts differentially modulate the antioxidant systems in the highly stress tolerant halophyte Prosopis strombulifera. Plant physiology and biochemistry. 2021 Oct;167:748-762. Epub 2021 Sept 8. doi: 10.1016/j.plaphy.2021.09.003
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title = "Na2SO4 and NaCl salts differentially modulate the antioxidant systems in the highly stress tolerant halophyte Prosopis strombulifera",
abstract = "Prosopis strombulifera (Lam.) Benth. is a halophytic shrub abundant in high-salinity areas in central Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the modulation of the antioxidant systems (enzymatic and non-enzymatic components) was analyzed under different salt treatments (NaCl, Na2SO4 and the iso-osmotic mixture) in hydroponic cultivation. Na2SO4-treated plants showed strong indications of oxidative stress (H2O2 and O2-• increase). Modifications in antioxidant enzymes activities were observed mainly under Na2SO4 treatment, where CAT seems to play an important role in early detoxification of H2O2 in roots, whereas SOD and APX have a predominant role in leaves. As part of the non-enzymatic system, 21 compounds were identified in leaves, being polyphenols the most abundant. Control plants contained the major variety of detected phytochemicals (14). Na2SO4-treated plants contained 10 compounds and NaCl-treated plants nine compounds, but with a different profile. NaCl-treated plants showed the highest antioxidant capacity. Our findings confirm that different types of salt treatments provoke a differential modulation of the antioxidant systems. Polyphenols and other ROS-detoxifying compounds, in a joint action with the enzymatic antioxidant system, are proposed to have a fundamental role in the cellular protection of P. strombulifera plants under severe oxidative stress. Our findings also highlight the potential of this halophyte as a valuable source of bioactive compounds with high antioxidant activity and health benefits.",
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note = "Funding Information: This research was funded by CONICET Argentina : ICT-ANPCYT 2015–0636 , SECYT- Universidad Nacional de R{\'i}o Cuarto, Argentina , to V.L. DAAD participates by funding a research stay for university academics and scientists to Mariana Reginato. Funding Information: This research was funded by CONICET Argentina: ICT-ANPCYT 2015?0636, SECYT- Universidad Nacional de R?o Cuarto, Argentina, to V.L. DAAD participates by funding a research stay for university academics and scientists to Mariana Reginato.",
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Download

TY - JOUR

T1 - Na2SO4 and NaCl salts differentially modulate the antioxidant systems in the highly stress tolerant halophyte Prosopis strombulifera

AU - Reginato, Mariana

AU - Cenzano, Ana M.

AU - Arslan, Idris

AU - Furlán, Ana

AU - Varela, Celeste

AU - Cavallin, Vanina

AU - Papenbrock, Jutta

AU - Luna, Virginia

N1 - Funding Information: This research was funded by CONICET Argentina : ICT-ANPCYT 2015–0636 , SECYT- Universidad Nacional de Río Cuarto, Argentina , to V.L. DAAD participates by funding a research stay for university academics and scientists to Mariana Reginato. Funding Information: This research was funded by CONICET Argentina: ICT-ANPCYT 2015?0636, SECYT- Universidad Nacional de R?o Cuarto, Argentina, to V.L. DAAD participates by funding a research stay for university academics and scientists to Mariana Reginato.

PY - 2021/10

Y1 - 2021/10

N2 - Prosopis strombulifera (Lam.) Benth. is a halophytic shrub abundant in high-salinity areas in central Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the modulation of the antioxidant systems (enzymatic and non-enzymatic components) was analyzed under different salt treatments (NaCl, Na2SO4 and the iso-osmotic mixture) in hydroponic cultivation. Na2SO4-treated plants showed strong indications of oxidative stress (H2O2 and O2-• increase). Modifications in antioxidant enzymes activities were observed mainly under Na2SO4 treatment, where CAT seems to play an important role in early detoxification of H2O2 in roots, whereas SOD and APX have a predominant role in leaves. As part of the non-enzymatic system, 21 compounds were identified in leaves, being polyphenols the most abundant. Control plants contained the major variety of detected phytochemicals (14). Na2SO4-treated plants contained 10 compounds and NaCl-treated plants nine compounds, but with a different profile. NaCl-treated plants showed the highest antioxidant capacity. Our findings confirm that different types of salt treatments provoke a differential modulation of the antioxidant systems. Polyphenols and other ROS-detoxifying compounds, in a joint action with the enzymatic antioxidant system, are proposed to have a fundamental role in the cellular protection of P. strombulifera plants under severe oxidative stress. Our findings also highlight the potential of this halophyte as a valuable source of bioactive compounds with high antioxidant activity and health benefits.

AB - Prosopis strombulifera (Lam.) Benth. is a halophytic shrub abundant in high-salinity areas in central Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the modulation of the antioxidant systems (enzymatic and non-enzymatic components) was analyzed under different salt treatments (NaCl, Na2SO4 and the iso-osmotic mixture) in hydroponic cultivation. Na2SO4-treated plants showed strong indications of oxidative stress (H2O2 and O2-• increase). Modifications in antioxidant enzymes activities were observed mainly under Na2SO4 treatment, where CAT seems to play an important role in early detoxification of H2O2 in roots, whereas SOD and APX have a predominant role in leaves. As part of the non-enzymatic system, 21 compounds were identified in leaves, being polyphenols the most abundant. Control plants contained the major variety of detected phytochemicals (14). Na2SO4-treated plants contained 10 compounds and NaCl-treated plants nine compounds, but with a different profile. NaCl-treated plants showed the highest antioxidant capacity. Our findings confirm that different types of salt treatments provoke a differential modulation of the antioxidant systems. Polyphenols and other ROS-detoxifying compounds, in a joint action with the enzymatic antioxidant system, are proposed to have a fundamental role in the cellular protection of P. strombulifera plants under severe oxidative stress. Our findings also highlight the potential of this halophyte as a valuable source of bioactive compounds with high antioxidant activity and health benefits.

KW - Enzymatic antioxidants

KW - NaSO

KW - NaCl

KW - Non-enzymatic antioxidants

KW - Oxidative stress

KW - Polyphenols

KW - Reactive oxygen species (ROS)

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U2 - 10.1016/j.plaphy.2021.09.003

DO - 10.1016/j.plaphy.2021.09.003

M3 - Article

AN - SCOPUS:85114678009

VL - 167

SP - 748

EP - 762

JO - Plant physiology and biochemistry

JF - Plant physiology and biochemistry

SN - 0981-9428

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