Biochemical responses of triticale plants treated with UV-B irradiation and nutrient solution enriched with humic acids

Todorova, Dessislava; Sergiev, Iskren; Moskova, Irina; Katerova, Zornitsa; Georgieva, Nina; Alexieva, V.; Brambilla, I.; Mapelli, S.

doi:10.3906/bot-1312-52

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…In particular, when UV-B applied to tropical plants, MDA, POD, SOD, and anthocyanin contents was increased however, they found decreased activity of CAT was measured (Todorova et al, 2014; Table 1). According to Tripathi et al (2017), UV stress was significantly improved at Si and Si nanoparticle (SiNp) applied wheat seedlings.…”

Section: Ultraviolet-bmentioning

confidence: 99%

“…Following this several Si transport genes have been characterized in other corps such as barley ( HvLsi1, HvLsi2 ) and maize ( ZmLsi1, ZmLsi2 ; Ma et al, 2006; Mitani et al, 2009; Yamaji et al, 2012). After the absorption of Si from the soil into the root, it gets translocated to the shoot area, where it can stimulate various physiological responses, such as plant growth and development (Epstein, 1999; Hamayun et al, 2010; Kim et al, 2012; Mateos-Naranjo et al, 2015), enzymatic activity (Epstein, 1999; Liang et al, 2003; Gong et al, 2005; Kim et al, 2014a,b,c; Todorova et al, 2014; Abdel-Haliem et al, 2017), and gene expression (Ma and Yamaji, 2008; Kim et al, 2014a; Vatansever et al, 2017). …”

Section: Introductionmentioning

confidence: 99%

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Silicon Regulates Antioxidant Activities of Crop Plants under Abiotic-Induced Oxidative Stress: A Review

et al. 2017

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Silicon (Si) is the second most abundant element in soil, where its availability to plants can exhilarate to 10% of total dry weight of the plant. Si accumulation/transport occurs in the upward direction, and has been identified in several crop plants. Si application has been known to ameliorate plant growth and development during normal and stressful conditions over past two-decades. During abiotic (salinity, drought, thermal, and heavy metal etc) stress, one of the immediate responses by plant is the generation of reactive oxygen species (ROS), such as singlet oxygen (1O2), superoxide (O2−), hydrogen peroxide (H2O2), and hydroxyl radicals (OH), which cause severe damage to the cell structure, organelles, and functions. To alleviate and repair this damage, plants have developed a complex antioxidant system to maintain homeostasis through non-enzymatic (carotenoids, tocopherols, ascorbate, and glutathione) and enzymatic antioxidants [superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX)]. To this end, the exogenous application of Si has been found to induce stress tolerance by regulating the generation of ROS, reducing electrolytic leakage, and malondialdehyde (MDA) contents, and immobilizing and reducing the uptake of toxic ions like Na, under stressful conditions. However, the interaction of Si and plant antioxidant enzyme system remains poorly understood, and further in-depth analyses at the transcriptomic level are needed to understand the mechanisms responsible for the Si-mediated regulation of stress responses.

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Section: Ultraviolet-bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silicon Regulates Antioxidant Activities of Crop Plants under Abiotic-Induced Oxidative Stress: A Review

et al. 2017

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“…Likewise, free proline content was also increased in a comparable manner by Cu and Cd. Both parameters are usually used to demonstrate oxidative injuries in plants provoked by various stress factors [ 20 ]. Typically, increased quantity of MDA is associated with negative effects of ROS on biomembrane integrity, which result in peroxidation and fragmentation of unsaturated fatty acids [ 11 ].…”

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confidence: 99%

Protective Effect of Humic Acids Against Heavy Metal Stress in Triticale

Sergiev¹,

Todorova²,

Moskova³

et al. 2013

Proceeding BAS

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The effects of copper and cadmium and the preparation Biomin (natural substance extracted from coal with a.i. humic acids) on the biometric parameters, some stress markers and enzymatic activities in leaves and roots of triticale plants were investigated. The functional carbon distribution in Biomin was analyzed by 13 C NMR. It was found that all treatments retarded the growth and fresh weight of the plants. Heavy metals enhanced the content of stress markers proline and malondialdehyde and the activities of guaiacol peroxidase, superoxide dismutase and glutathione-S-transferase. The opposite trend was observed after Biomin application. Catalase activity was not affected considerably by the treatments. The free thiol-containing compounds were increased only in the roots of cadmium-treated plants. Comparative analysis of the measured parameters suggested that Biomin possessed protective effect against heavy metal toxicity.

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“…(Gill & tuteja, 2010;Zlatev et al, 2012). Exogenous application of different plant growth-regulating substances is also able to activate some or all of these defence systems in plants subjected to different type of abiotic stresses (todorova et al, 2008;dinG et al, 2010;Habibi, 2012;Katerova et al, 2014;todoro va et al, 2014;esrinGu et al, 2016;serGiev et al, 2016;aKsaKal et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Auxin-like compounds act as protectors against UV-B irradiation in garden pea plants

Sergiev¹,

Todorova²,

Shopova³

et al. 2017

Botanica Lithuanica

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Sergiev I., Todorova D., Shopova E., Katerova Z., Jankauskienė J., Jurkonienė S., 2017: Auxin-like compounds act as protectors against UV-B irradiation in garden pea plants. -Bot. Lith., 23(2): 79-88.Pretreatment with the original auxin physiological analogues 1-[2-chloroethoxycarbonylmethyl]-4-naphthalenesulfonic acid calcium salt (TA-12) and 1-[2-dimethylaminoethoxicarbonylmethyl]naphthalene chlormethylate (TA-14) and subsequent UV-B irradiation (180 min at λ max 312 nm for 6.6 kJ·m -2 ) of pea plants (Pisum sativum L.) was investigated to assess if foliar application of these compounds has ability to attenuate the negative effects caused by UV-B stress. UV-B treatment increased malondialdehyde (MDA) and proline levels as well as superoxide dismutase, catalase and guaiacol peroxidase activities, but decreased hydrogen peroxide, low-molecular thiols, total phenolics and total soluble protein contents. The pre-treatment with TA compounds decreased the oxidative stress provoked by UV-B radiation detected by lower level of MDA, increased the content of thiols and UV-absorbing compounds and had favourable effect on H 2 O 2 content and enzymatic activities. Exogenous application of auxin-like compounds on pea plantlets successfully counteracted UV-B induced oxidative stress via activation of ROS detoxifying enzymes and non-enzymatic antioxidants.

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Biochemical responses of triticale plants treated with UV-B irradiation and nutrient solution enriched with humic acids

Cited by 7 publications

References 41 publications

Silicon Regulates Antioxidant Activities of Crop Plants under Abiotic-Induced Oxidative Stress: A Review

Silicon Regulates Antioxidant Activities of Crop Plants under Abiotic-Induced Oxidative Stress: A Review

Protective Effect of Humic Acids Against Heavy Metal Stress in Triticale

Auxin-like compounds act as protectors against UV-B irradiation in garden pea plants

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