He–Ne laser pretreatment protects wheat seedlings against cadmium-induced oxidative stress

Qiu, Zongbo; Li, Jinting; Zhang, Man-man; Bi, Zhenzhen; Li, ZhenLin

doi:10.1016/j.ecoenv.2012.11.001

Cited by 53 publications

(46 citation statements)

References 40 publications

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“…The effect of He-Ne laser on plants has recently received attention this led to various investigations (Qiu et al, 2010(Qiu et al, & 2013Podleśny et al, 2012;Abu-Elsaoud and Tuleukhanov, 2013;Jamil et al, 2013;Jia and Duan, 2013;Abu-Elsaoud, 2013& 2015 . Nevertheless, these previous investigations have not focused on the damage repair role of laser on photosynthesis under ultraviolet radiations stress.…”

Section: Discussionmentioning

confidence: 99%

“…Ultr aviolet radiation is a signific ant abiotic s tress f act or for plants ; it may c ause v arious d elet erious and dam aging ef fec t t o t he c ell membranes , cellular m et abolism and genetic s yst em. Many inves tigations s howed t he p ositive ef fect of laser irradiation as a pre-treatm ent f or protecti on against many str ess es (Qiu et al , 2007(Qiu et al , , 2013(Qiu et al , , & 2017W u et al, 2007). So, the present res earc h st udies t he eff ect of the laser as a pre-tr eatm ent for plant protec tion from UV radiati on.…”

Section: Discussionmentioning

confidence: 99%

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Role of He-Ne laser pre-treatment in protecting Zea mays against the deleterious effects of ultraviolet radiations

Abu-Elsaoud¹,

Shahda²

2017

Egypt. J. Exp. Biol. (Bot.)

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The current st udy aims to r ec ord the rol e of the pretreatment of Z ea m ays grains with a He-Ne las er in d amage rep air of ultr aviolet (UVA+B) radiati on eff ect. Plants wer e divided into f our groups; c ontrol group, group expos ed to t he He -Ne l aser onl y f or 1-300 sec onds, group expos ed t o U V A+ B only and protect ed group. In t he prot ect ed group the grains were tr eated with diff erent H e -Ne las er irradiation dur ation f or two w eeks t hen expos ed to 3. 6 and 7. 2 KJ m − 2 d −1 UVA+B radiation.Irradiation with H e-Ne las er significantl y (p ≤ 0.05) increas ed shoot length, number of l eav es, s hoot biomas s (week 1), root dr y w eight, c hl orophyll -a, chl orophyll -b, and t ot al c hlor ophyll . Sup eroxide free r adical, hydrogen peroxide and lipid peroxidation wer e decreas ed at l ow dos es and increas ed with higher dos es of las er. V arious d elet erious eff ects of ultravi olet r adiations w ere recorded in Zea m ays i ncluding decr eased phot os ynt hetic pigments, s hoot and root biomass, and root and shoot length. The pretreatm ent with a l aser bef ore expos ure t o UVA+B radiation c auses a slight i ncrease i n plant l engt h and t he number of leav es, an increase of r oot length, whil e a decreas e of shoot /root length and an i ncreas e i n l eaf paramet ers at s ome las er tr eatments wer e observed . T he res ults rev eal ed t hat the pretreatm ent of m aize grai ns wit h H e -N e laser dos es f or 10s to 300s allevi at ed the damaging eff ect s of U V-B radiati on in the range of 7.2 KJ m −2 d −1 UVA+B radiation. KEY WORDS:He-Ne las er, Ultravi olet r adiation, prot ectiv e role, pigments, oxidative stress, antioxidants, U V-B abs orbing compounds, flav onoids. I NTRODUCTI ON :Ultraviolet radiati ons (UV) ar e a nonionizing el ectrom agnetic spectr um t hat embraces about 8-9% of s ol ar energ y (Gill et al., 2015). O zone depleti on in the strat osphere has r esult ed in an increm ent i n ultravi olet-B irradiati on (UV-B ; 280-320 nm), which has pot entiall y destr uctiv e consequences for crop yield and production and aff ect nat ural environm ents (J ulkunenTiitto et al., 2005;Siipola et al ., 2015).Enhanc ed levels of ultravi olet r adiations trigger different str uct ural, p hysiol ogical and molec ular resp ons es i n plant s (Cas ati, 2003; Kum ari et al. , 2009; Sal ama et al. , 2011;Gill et al. , 2015). A higher d ose of UV-B prov ok es impairment and modific ation of macrom olec ules like DNA , RN A, and prot eins , decreas e net phot os ynthesis and adjust the activities of sev eral antioxidant enz ym es (Gill and T ut eja, 2010;Sharma et al., 2012). Nevert heless , plants hav e d evel oped v arious protectiv e strategies to m anage and withst and, agai nst high UV-B irradiation. The act ual accum ulation of U V -absorbing materi als c an cert ainl y help in the prev ention of U V penetrati on to vul ner able layers of the leaf . T his kind of c ompounds build -up withi n the upper epidermal l ayers of the leav es of sev eral higher plants purs uin...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Role of He-Ne laser pre-treatment in protecting Zea mays against the deleterious effects of ultraviolet radiations

Abu-Elsaoud¹,

Shahda²

2017

Egypt. J. Exp. Biol. (Bot.)

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“…It is widely used for general purpose turf and low-maintenance grass cover, and plays an important role in environmental protection and livestock production in China (Wang and Ge 2005;Ma et al 2014). Accordingly, increased tolerance to unfavorable environmental conditions such as drought, high soil salinity, extreme temperature, ultraviolet-B radiation, high light, air pollution, heavy metals, NPs or some combination of these conditions appears indispensable for tall fescue growth and development (Yang et al 2012b;Zsigmond et al 2012;Qiu et al 2013;Gao et al 2015;Hu et al 2015;Gao et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The cytotoxic effects of free cadmium ions (Cd 2+ ) on organisms are well known (Qiu et al 2013;Zhang et al 2016). CdSNPs inside a living organism releases free Cd 2+ into cells under an oxidative environment or UV-light radiation ( Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The low power He-Ne visible wavelength laser, commonly employed in crops and many agricultural plants in experimental conditions, plays a positive role in accelerating plant growth and metabolism (Qiu et al 2008(Qiu et al , 2010(Qiu et al , 2013Perveen et al 2011;Gao et al 2015), and also protects plant seedlings against biotic and abiotic damage induced by a variety of unfavorable environmental stressors, like fungal infection (Han et al 2006;Dong et al 2007), enhanced UV-B radiation (Qi et al 2002;Chen 2008;Yang et al 2012a), chilling stress (Chen et al 2010), osmotic stress (Qiu et al 2010), drought stress (Qiu et al 2008), and cadmium stress (Qiu et al 2013). However, the use of He-Ne laser radiation as a protective method against the cytotoxic effects of NPs on living organisms, in particular agricultural plants, has not been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

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The detoxification effects of He-Ne laser irradiation on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings

Gao

Han

2016

Can. J. Plant Sci.

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Because of their wide applications in manufacturing life science and medicine, nanoparticles (NPs) are becoming potential limiting factors for agricultural plant growth and productivity. Thus, development of some low cost and low risk methods for detoxifying or alleviating cytotoxicity of NPs on crops would be a proactive attractive solution. In this study, we investigated the ameliorating effect of He-Ne laser illumination of seedlings on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings. Physiological parameters and biochemical characteristics of 20-d-old seedlings with different times of laser illumination and graded doses of CdSNPs treatment, either alone or in combination, were measured. Cadmiun sulfide nanoparticles exhibited pronounced inhibitory effect on shoot and root growth, respectively. Accumulation of CdSNPs in plant root cells resulted in oxidative stress as detected by the formation of reactive oxygen species (ROS), which aggravate the cytotoxicity of CdSNPs on seedlings. Treatment of seedlings with CdSNPs alone also reduced antioxidant concentration, phytochelatins (PCs) content, enzymatic activities of phytochelatin synthase (PCS), and antioxidant enzymes, such as CAT, APX, GR, and POD, except SOD. However, He-Ne laser illumination prior to CdSNPs exposure alleviated the inhibitory effect on seedling growth and development through activation of tall fescue antioxidant systems due to induction of antioxidants biosynthesis and antioxidant enzyme activities. Furthermore, PCs and GSH induced by laser was also demonstrated to be involved in decreasing the cytotoxicity of CdSNPs through binding free cadmium ions release from CdSNPs. The interactive mechanisms between He-Ne lasers, plant antioxidant systems, and PCs biosynthesis pathways need be further investigated.

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Physiological Role of Gamma-Aminobutyric Acid in Salt Stress Tolerance

Jalil

Ansari

2020

Salt and Drought Stress Tolerance in Plants

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He–Ne laser pretreatment protects wheat seedlings against cadmium-induced oxidative stress

Cited by 53 publications

References 40 publications

Role of He-Ne laser pre-treatment in protecting Zea mays against the deleterious effects of ultraviolet radiations

Role of He-Ne laser pre-treatment in protecting Zea mays against the deleterious effects of ultraviolet radiations

The detoxification effects of He-Ne laser irradiation on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings

Physiological Role of Gamma-Aminobutyric Acid in Salt Stress Tolerance

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