Chilling tolerance of Cicer arietinum lines evaluated by photosystem II and antioxidant activities

Turan, Özlem; Ekmekçi, Yasemin

doi:10.3906/bot-1309-7

Cited by 12 publications

(9 citation statements)

References 65 publications

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“…In general, the activity of APX in chickpea leaves exposed to low temperature increased, compared to the NS control. Similar results concerning the increased activity of APX under abiotic stress conditions have been reported in different plants [33][34][35][36][37][38]. High activity of APX can decrease the ROS levels and increase the resistance to oxidative stress, and reduced activity of this enzyme can cause the lower plant cold tolerance [31,39].…”

Section: Discussionsupporting

confidence: 80%

Influence of long-term cold stress on enzymatic antioxidative defense system in chickpea (Cicer arietinum L.)

Yousefi¹,

Ahmadi²,

Sadeghzadeh-Ahari³

et al. 2018

Acta Agrobot

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Abiotic stresses such as cold, heat, and drought are the main causes of universal crop losses. Plants have generated adaptive responses which prevent them from oxidative damage caused by environmental stresses. The present research aimed to evaluate the effect of cold stress on lipid peroxidation and antioxidant enzyme activity in the leaves of eight cultivars / advanced lines of chickpea (<em>Cicer arietinum</em> L.). Three-week-old plantlets were subjected to cold stress (0°C) for 24 or 48 hours. Selected antioxidant enzyme activity and oxidative status of chickpea plantlets under cold stress were determined. In most genotypes, catalase and ascorbate peroxidase activities were increased and guaiacol peroxidase activity decreased under stress conditions but the activity of superoxide dismutase remained almost constant. Based on its ranking, <em>Cicer arietinum</em> ‘Saral’, a newly released cold-resistant Iranian chickpea cultivar, had the strongest, and FLIP 05-77C had the weakest antioxidative defense system under low temperature stress.

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Section: Discussionsupporting

confidence: 80%

Influence of long-term cold stress on enzymatic antioxidative defense system in chickpea (Cicer arietinum L.)

Yousefi¹,

Ahmadi²,

Sadeghzadeh-Ahari³

et al. 2018

Acta Agrobot

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“…The amino acid Pro is a compatible solute which ameliorates different environmental stresses in plants. Elevated Pro levels play an important role in detoxification, enzyme protection, water-binding capacity, and protein synthesis stabilization (Sharma and Dietz 2006;Gill and Tuteja 2010;Gallego et al 2012;Turan and Ekmekci 2014). We interpret the observed Pro accumulation as part of a defense mechanism under severe stress (long-time metal treatments and drought) (Figs.…”

Section: Discussionmentioning

confidence: 77%

“…According to Hossain et al (2013), cold pre-treatment played an important role to scavenge H 2 O 2 in drought or salt-stressed B. campestris seedlings and induced heavy metal tolerance due to the higher antioxidant enzyme activities. Higher POD activity in cold-acclimated chickpea leaves also contributed their protective role against oxidative stress (Turan and Ekmekci 2014). Synergistic coactivation of antioxidative systems is highly essential to control the levels of ROS-induced damage.…”

Section: Discussionmentioning

confidence: 99%

“…Plants can have varying metabolic responses to single and multiple stressors, and this highlights the need for further detailed research (Mittler 2002). It is clear that plants have evolved many different defense mechanisms for their cellular protection, including enzymatic and non-enzymatic antioxidants (Ashraf and Foolad 2007;Gill and Tuteja 2010;Gallego et al 2012;Filippou et al 2014;Turan and Ekmekci 2014).…”

Section: Introductionmentioning

confidence: 99%

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Abiotic stress effects on the antioxidative response profile of Albizia julibrissin Durazz. (Fabaceae)

et al. 2016

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Abiotic stresses (e.g., heavy metals, drought, cold, or combinations) induce oxidative stress with overproduction of reactive oxygen species (ROS). We have investigated the antioxidative responses of Albizia julibrissin Durazz. (silk tree, Fabaceae). Four-month-old plants grown in sand cultures were subjected to various single or sequential treatments involving exposure to cadmium (50-250 lmol L-1 Cd), lead (1000-5000 lmol L-1 Pb), chilling at 4°C (CH), or drought (DR), for a period of 7-45 days. Leaf extracts were assayed for glutathione peroxidase (GPX), glutathione-disulfide reductase (GR), catalase (CAT), soluble proline (Pro), ascorbate peroxidase (APX), and guaiacol peroxidase (GUAPX). Cd and Pb accumulation in the leaves was also measured. CAT activity decreased strongly with increasing Pb exposure and after CH. It was also found to be reduced after Cd and DR treatments. GR activity increased highly in nearly all treatments, most strongly at high Cd or Pb, after DR ? CH, and after CH followed by Cd. GUAPX and GPX showed similar trends of increase. APX activity dropped after CH, but increased after low Cd treatment and in CH ? DR sequential stresses. Massive accumulation of soluble Pro occurred after 14-21 days in highly Cd-or Pbstressed plants. CH or DR acclimation led to some alterations of antioxidative responses, particularly for CAT, GR, and APX. Our data indicate that GSH, GSHlinked redox systems, peroxidases, and Pro are possibly the more important antioxidants under severe stress.

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“…Within the GSH cycle, glutathione reductase (GR) catalyzes the reduction of GSSG to GSH, and with the help of DHAR it maintains high AsA-redox and a favorable GSH/GSSG ratio. This is necessary for the tight control of metal-induced ROS scavenging (Noctor et al, 2012;Anjum et al, 2014;Turan and Ekmekçi, 2014). Outside the AsA-GSH cycle, catalases (CAT) metabolize H 2 O 2 , which can oxidize GSH through the action of GSH-S-transferase (GST) (Finnegan and Chen, 2012).…”

Section: Introductionmentioning

confidence: 99%

A metabolic diversion in the upstream thiol cascade of cysteine-deficient lentil (Lens culinaris Medik.) mutants induces arsenate tolerance by modulating downstream antioxidant defense

Talukdar¹

2016

Turk J Bot

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The functional interplay between upstream and downstream thiol cascades was investigated in a cysteine-deficient mutant (cysLc1), a catalase-deficient (catLc2) mutant, a double mutant (showing deficiency of both cysteine (Cys) (upstream) and catalase (downstream antioxidant defense) (cysLc1/catLc2)), and the VL125 genotype of lentil under the following treatments: a) 50 μM sodium arsenate (As); and b) As + 1 mM L-buthionine-sulfoximine (BSO). Both cysLc1 and the double mutant experienced As-induced oxidative stress due to the lack of responsiveness of the entire thiol cascade and antioxidant defense. Contrastingly, the catLc2 mutant and VL125 exhibited As tolerance. Under the As + BSO treatment, glutathione (GSH) synthesis was inhibited, but sulfate transport and Cys synthesis were differentially regulated in the four genotypes. The cysLc1 and catLc2 mutants induced Cys desulfuration pathways and generated huge endogenous hydrogen sulfide, stimulating ascorbate-mediated antioxidant defense and catalases as an alternative mechanism of As tolerance under low GSH redox. The nonresponsiveness of this alternate route, coupled with a crippled ascorbate-mediated antioxidant defense, led to huge Cys build-up and ROS overaccumulation in VL125 and the double mutant, which consequently experienced Asinduced growth inhibition. The study indicated that a metabolic diversion in an upstream thiol cascade through Cys desulfuration is imminent for Cys homeostasis and modulation of the downstream antioxidant defense against As toxicity when the Cys consumption route towards GSH is blocked.

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Chilling tolerance of Cicer arietinum lines evaluated by photosystem II and antioxidant activities

Cited by 12 publications

References 65 publications

Influence of long-term cold stress on enzymatic antioxidative defense system in chickpea (Cicer arietinum L.)

Influence of long-term cold stress on enzymatic antioxidative defense system in chickpea (Cicer arietinum L.)

Abiotic stress effects on the antioxidative response profile of Albizia julibrissin Durazz. (Fabaceae)

A metabolic diversion in the upstream thiol cascade of cysteine-deficient lentil (Lens culinaris Medik.) mutants induces arsenate tolerance by modulating downstream antioxidant defense

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