Polyamine and nitric oxide crosstalk: Antagonistic effects on cadmium toxicity in mung bean plants through upregulating the metal detoxification, antioxidant defense and methylglyoxal detoxification systems

Nahar, Kamrun; Hasanuzzaman, Mirza; Alam, Md. Mahabub; Rahman, Anisur; Suzuki, Toshisada; Fujita, Masayuki

doi:10.1016/j.ecoenv.2015.12.026

Cited by 326 publications

(242 citation statements)

References 69 publications

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“…The MG level markedly increases in different plants under abiotic stress including Cd stress (Hasanuzzaman et al, 2012c;Suhartono et al, 2014;Nahar et al, 2016;, which is similar to the findings of our present study. Upregulation of the MG detoxification system or glyoxalase system is very important for plants to improve stress tolerance against toxic MG or MG-induced oxidative stress (Yadav et al, 2005a).…”

Section: Discussionsupporting

confidence: 82%

“…They reported that levels of non-protein thiols and phytochelatins increased greatly in leaves of B. juncea by increasing Cd supply, but no change was observed in B. napus. Plants grown in heavy metal-contaminated medium showed higher metal accumulation in the roots than the shoots (Srivastava et al, 2014;Ahmad et al, 2015;Nahar et al, 2016;Rahman et al, 2016). In our present study, Cd exposure resulted in the accumulation of Cd in the root and shoot tissues of all three Brassica seedlings, with the highest accumulation showing in B. juncea.…”

Section: Discussionmentioning

confidence: 56%

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Relative tolerance of different species of Brassica to cadmium toxicity: Coordinated role of antioxidant defense and glyoxalase systems

Mahmud¹,

Hasanuzzaman²,

Rahman³

et al. 2017

Plant Omics

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The present study was carried out to examine the metal accumulation and tolerance abilities of three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress (0.25 and 0.5 mM CdCl 2 for three days). Of the Brassica species studied, B. juncea accumulated the highest amount of Cd in a dose-dependent manner, and in every case, the Cd content was higher in the roots than the shoots. Cadmium stress reduced seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) content, whereas proline (Pro), MDA, and H 2 O 2 content and lipoxygenase (LOX) activity increased in all species. Under Cd stress, ascorbate (AsA) content reduction was lower and glutathione (GSH) content increase was higher in B. juncea compared with other species. Monodehydroascorbate reductase (MDHAR), glutathione reductase (GR), and superoxide dismutase (SOD) activities increased significantly in B. juncea under Cd stress compared with the other species. Catalase (CAT) activity did not decrease in B. juncea due to Cd stress, compared with the other species. Dehydroascorbate reductase (DHAR) activity decreased with both levels of Cd stress in all species except for B. juncea under 0.25 mM CdCl 2 stress. Glyoxalase system components performed better in B. juncea than the other species under Cd stress. Methylglyoxal (MG) increased substantially under both levels of Cd stress, but MG content was lower in B. juncea compared with the others. Considering the antioxidant defense and glyoxalase systems performance B. juncea is relatively tolerant species to Cd toxicity though it accumulated highest Cd.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 56%

Relative tolerance of different species of Brassica to cadmium toxicity: Coordinated role of antioxidant defense and glyoxalase systems

Mahmud¹,

Hasanuzzaman²,

Rahman³

et al. 2017

Plant Omics

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“…Usually, plants produce proline (Pro) or other compatible solutes to stabilize osmotic homeostasis by maintaining the water relationship and stabilizing protein and enzyme complexes (Iqbal et al 2015;Reddy et al 2015;Nahar et al 2016a). Besides this, to detoxify overproduced ROS, plants have an antioxidant defense system composed of non-enzymatic antioxidants (ascorbic acid, AsA; glutathione, GSH; phenolic compounds; alkaloids; non-protein amino acids; and a-tocopherols) and enzymatic antioxidants (superoxide dismutase, SOD; catalase, CAT; ascorbate peroxidase, APX; glutathione reductase, GR; monodehydroascorbate reductase, MDHAR; dehydroascorbate reductase, DHAR; glutathione peroxidase, GPX; and glutathione S-transferase, GST) (Pang and Wang 2008;Gill and Tuteja 2010;Hasanuzzaman et al 2012;Hasanuzzaman et al 2013a, b).…”

Section: Introductionmentioning

confidence: 99%

Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Rahman

Hossain

Mahmud

et al. 2016

Physiol Mol Biol Plants

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Hydroponically grown 12-day-old rice (Oryza sativa L. cv. BRRI dhan47) seedlings were exposed to 150 mM NaCl alone and combined with 0.5 mM MnSO 4 . Salt stress resulted in disruption of ion homeostasis by Na ? influx and K ? efflux. Higher accumulation of Na ? and water imbalance under salinity caused osmotic stress, chlorosis, and growth inhibition. Salt-induced ionic toxicity and osmotic stress consequently resulted in oxidative stress by disrupting the antioxidant defense and glyoxalase systems through overproduction of reactive oxygen species (ROS) and methylglyoxal (MG), respectively. The saltinduced damage increased with the increasing duration of stress. However, exogenous application of manganese (Mn) helped the plants to partially recover from the inhibited growth and chlorosis by improving ionic and osmotic homeostasis through decreasing Na ? influx and increasing water status, respectively. Exogenous application of Mn increased ROS detoxification by increasing the content of the phenolic compounds, flavonoids, and ascorbate (AsA), and increasing the activities of monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), superoxide dismutase (SOD), and catalase (CAT) in the salt-treated seedlings. Supplemental Mn also reinforced MG detoxification by increasing the activities of glyoxalase I (Gly I) and glyoxalase II (Gly II) in the salt-affected seedlings. Thus, exogenous application of Mn conferred salt-stress tolerance through the coordinated action of ion homeostasis and the antioxidant defense and glyoxalase systems in the salt-affected seedlings.

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“…Abiotic stresses result in a series of physiological changes in plants that adversely affect the yield and even death. Reactive oxygen species (ROS) and methylglyoxal (MG) production in plant cell is the ultimate result under any kind of abiotic stresses (Singla-pareek et al, 2006;Hasanuzzaman et al, 2014;Nahar et al, 2016). Methylglyoxal is a highly toxic compound that produces under abiotic stress.…”

Section: Introductionmentioning

confidence: 99%

“…These two enzymes catalyze 2-oxoaldehydes coordinately to convert into 2-hydroxyacids when reduced glutathione used as a cofactor (Silva et al, 2013). The reaction is catalyzed by Gly I and Gly II (Hoque et al, 2007;Nahar et al, 2016) (Fig 1). Methylglyoxal is a primary physiological substrate for Gly I (Kalapos, 1999;Hasanuzzaman et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Salinity and drought-induced methylglyoxal detoxification in Brassica spp. and purification of a high active glyoxalase I from tolerant genotype

Hossain¹,

Hasanuzzaman²,

Hoque³

et al. 2016

Plant Omics

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This experiment was conducted to study the role of glyoxalase system in conferring salinity and drought stress in Brassica spp. Two Brassica genotypes viz. BARI Sharisha16 (tolerant) and Tori7 (susceptible) were exposed to salt (16 dS m -1 ) and drought for 2, 4 and 6 days. The comparative study of two Brassica genotypes under salinity and drought stresses revealed that BARI Sharisha16 is more tolerant than Tori7 in both stresses. Under drought stress and salinity stress, Gly I activity increased significantly in both genotypes. Notably, concomitant increased activities of Gly I and Gly II with increased methylglyoxal (MG) suggested their role in MG detoxification in Brassica Spp. At six-day of salt stress, it was remarkable that Gly I and Gly II activities were 49 and 36 % higher in BARI Sharisha16 than Tori7. In addition, Gly I and Gly II activities were 24 and 21 % higher in BARI Sharisha16 than Tori7 after sixth day of drought, and hence, using different column chromatography Gly I was purified from BARI Sharisha16 seedlings. In purification, the fraction eluted from affinity chromatography showed specific activity of 173.51 µM min -1 mg -1 protein. In SDS-PAGE, the purified Gly I protein migrated as a single band on with an apparent molecular mass of 27 kDa. In final purification, the recovery of Gly I activity was 0.38% along with purification fold 112.7. In this study, role of glyoxalase system in detoxification of MG was observed and subsequently, Gly I was purified from tolerant genotypes.

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Polyamine and nitric oxide crosstalk: Antagonistic effects on cadmium toxicity in mung bean plants through upregulating the metal detoxification, antioxidant defense and methylglyoxal detoxification systems

Cited by 326 publications

References 69 publications

Relative tolerance of different species of Brassica to cadmium toxicity: Coordinated role of antioxidant defense and glyoxalase systems

Relative tolerance of different species of Brassica to cadmium toxicity: Coordinated role of antioxidant defense and glyoxalase systems

Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Salinity and drought-induced methylglyoxal detoxification in Brassica spp. and purification of a high active glyoxalase I from tolerant genotype

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