The regulatory effect of melatonin on physiological, biochemical and molecular parameters in cold-stressed wheat seedlings

Turk, Hulya; Erdal, Serkan; Geni̇şel, Mucip; Atıcı, Ökkeş; Demir, Yavuz; Yanmis, Derya

doi:10.1007/s10725-014-9905-0

Cited by 220 publications

(162 citation statements)

References 94 publications

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“…In our research, the leaf H 2 O 2 contents of HG35 under both P + 1 μM and P + 10 μM melatonin treatments did not decrease obviously; however, the root H 2 O 2 contents of HG35 decreased significantly under the two melatonin treatments. Previous researches have also reported that melatonin could eliminate H 2 O 2 content directly, protecting chlorophyll damage from the induced oxidative stress injury (Wang et al, 2012 a;Turk et al, 2014). For JM22, leaf and root H 2 O 2 contents both decreased with 1 μM and 10 μM melatonin under drought treatment, which was consistent with the former conclusion.…”

Section: Discussionsupporting

confidence: 87%

“…In particular, melatonin can trigger the plant defense responses against abiotic stress, playing an important role in improving the tolerance of plants to adverse environment (Li et al, 2012;Turk et al, 2014;Meng et al, 2015;Bałabusta et al, 2016). This has been proposed to be related to scavenging active oxygen, increment of root to stem ratio, delaying induced leaf senescence, up-regulating of anti-stress genes and so on (Wang et al, 2012 b;Jiang, Zu, 2015;Li et al, 2015;Ye et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Physiological response of plants to polyethylene glycol (PEG-6000) by exogenous melatonin application in wheat

Zhang

Wang

et al. 2017

Zemdirbyste-Agriculture

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The regulation effect of melatonin on water use efficiency of leaf and potential mechanisms related to phytohormone of leaf/root were investigated using two wheat (Triticum aestivum L.) cultivars with contrasting drought tolerance: drought-tolerant 'Hengguan35' (HG35) and growing in irrigated fields 'Jimai22' (JM22). Four treatments, including normal water treatment (N), 20% polyethylene glycol (PEG) (P), P + 1 μM melatonin and P + 10 μM melatonin were conducted. Results indicated that exogenous melatonin could significantly improve net photosynthetic rate (Pn), instantaneous water use efficiency (WUE inst. ) and intrinsic water use efficiency (WUE intr. ) of cultivar 'Jimai22'. This was possibly related to increasing root auxin (IAA), zeatin riboside (ZR) content and inhibiting abscisic acid (ABA), hydrogen peroxide (H 2 O 2 ) and aminocyclopropane-1-carboxylic acid (ACC) production in leaf. However, for cultivar 'Hengguan35', 1 μM and 10 μM melatonin did not improve photosynthetic rate and chlorophyll content even took negative effect on that. This could be caused by high vapour pressure deficit (VPD) and high H 2 O 2 contents in leaf. Also, as a drought-tolerant cultivar, 'Hengguan35' possesses some physiological regulation itself such as increasing IAA and ZR content in root and leaf, inhibiting H 2 O 2 production in root. But ABA and ACC content in root was not inhibited, even increased with melatonin under drought treatment. ACC was a potential central player in the hormone cross-talks that regulated leaf and root growth and physiological function. These results suggest that the effect of exogenous melatonin application on drought-resistance in seedling was distinct owing to wheat cultivars with different drought sensitivity, and this was also involved in complicated mechanism of physiological regulation to keep water status. Suitable application of melatonin thus can be an effective way in improving plant drought tolerance in wheat.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Physiological response of plants to polyethylene glycol (PEG-6000) by exogenous melatonin application in wheat

Zhang

Wang

et al. 2017

Zemdirbyste-Agriculture

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“…In the present study, both H 2 O 2 and O 2 .− analysis showed increased ROS in chilling-treated plants (Figure 1). These findings are consistent with those of prior researchers (Scebba et al 1998;Janda et al 2003;Tasgin et al 2006;Mutlu et al 2013;Luo et al 2014;Türk et al 2014). Enhanced production of ROS under stress conditions induces both cellular damage and protective responses.…”

Section: Discussionsupporting

confidence: 93%

“…Most studies have concluded that SOD decomposes O 2 .− to O 2 and H 2 O 2 , which are further oxidized to molecular oxygen and H 2 O by the enzymes CAT and POX (Karabal et al 2003;Molassiotis et al 2006;. So far, several investigators have indicated that chilling stress affects the activities of antioxidant enzymes Türk et al 2014). On the other hand, a relationship between the antioxidant system and chilling tolerance has been revealed in plants (Scebba et al *Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Effects of exogenous nitric oxide and salicylic acid on chilling-induced oxidative stress in wheat (Triticum aestivum)

Esim

Atıcı

2015

Frontiers in Life Science

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This study investigated the effect of pretreatments of nitric oxide (NO) and/or salicylic acid (SA) on alleviation of chilling stress in wheat (Triticum aestivum). Sodium nitroprusside (SNP) was used as the NO source. Eleven-day-old wheat seedlings were pretreated with 0.1 mM SNP and/or 1 mM SA for 12 h and then exposed to chilling conditions (5/2°C day/night temperature) for 3 days. The rate of generation of reactive oxygen species (ROS) such as hydrogen peroxide (H 2 O 2 ) and superoxide anion (O 2 .− ) significantly increased in chilling-treated compared with control plants. Similarly, malondialdehyde content increased in chilling-treated plants. SNP and/or SA significantly decreased the rate of H 2 O 2 and O 2 .− compared with only chilling-treated plants. Combined application of SNP and SA considerably reduced the rates of malondialdehyde, H 2 O 2 and O 2.− in chilling-treated seedlings. SNP and/or SA increased the activity of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX), which contributed to ROS scavenging in wheat under chilling stress. The highest values for SOD, CAT and POX activities were observed in the combined application of SNP and SA under chilling stress. The results suggest that alleviation of chilling-stress induced oxidative damage was more efficient by the combined application of SNP and SA than by SNP or SA alone.

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“…According to these authors, water status can be improved by dual protective mechanisms (reduced contents of both ABA and H 2 O 2 ) working synergistically to improve stomata functioning. A mitigating effect of melatonin on RWC was also found in wheat seedlings under cold stress (Turk et al, 2014), although in soybean plants subjected to drought stress, RWC was slightly lower than in the control plants (Wei et al, 2015). …”

Section: Discussionmentioning

confidence: 78%

Melatonin Application to Pisum sativum L. Seeds Positively Influences the Function of the Photosynthetic Apparatus in Growing Seedlings during Paraquat-Induced Oxidative Stress

2016

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Melatonin, due to its pleiotropic effects plays an important role improving tolerance to stresses. Plants increase endogenous melatonin synthesis when faced with harsh environments as well as exogenously applied melatonin limits stress injuries. Presented work demonstrated that single melatonin application into the seeds during pre-sowing priming improved oxidative stress tolerance of growing seedlings exposed to paraquat (PQ). PQ is a powerful herbicide which blocks the process of photosynthesis under light conditions due to free radicals excess production, when O2 is rapidly converted to O2•– and subsequently to other reactive oxygen species. The parameters of chlorophyll fluorescence [Fv/Fm, Fv/Fo, Rfd, ΦPSII, qP, and non-photochemical quenching (NPQ)] in all variants of pea leaves (derived from control non-treated seeds – C, and those hydroprimed with water – H, and hydroprimed with melatonin water solution 50 or 200 μM – H-MEL50 and H-MEL200, respectively) were analyzed as a tool for photosynthetic efficacy testing. Moreover stability of the photosynthetic pigments (chlorophylls a, b, and carotenoids) was also monitored under oxidative stress conditions. The results suggest that melatonin applied into the seed significantly enhances oxidative stress tolerance in growing seedlings. This beneficial effect was reflected in reduced accumulation of O2•– in leaf tissues, preservation of photosynthetic pigments, improved functioning of the photosynthetic apparatus and higher water content in the tissues during PQ-mediated stress. Our findings provide evidence for the physiological role of this molecule and serve as a platform for its possible applications in agricultural or related areas of research.

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The regulatory effect of melatonin on physiological, biochemical and molecular parameters in cold-stressed wheat seedlings

Cited by 220 publications

References 94 publications

Physiological response of plants to polyethylene glycol (PEG-6000) by exogenous melatonin application in wheat

Physiological response of plants to polyethylene glycol (PEG-6000) by exogenous melatonin application in wheat

Effects of exogenous nitric oxide and salicylic acid on chilling-induced oxidative stress in wheat (Triticum aestivum)

Melatonin Application to Pisum sativum L. Seeds Positively Influences the Function of the Photosynthetic Apparatus in Growing Seedlings during Paraquat-Induced Oxidative Stress

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