Effect of laser light treatment on some biochemical and physiological processes in seeds and seedlings of white lupine and faba bean

Podleśny, J.; Stochmal, Anna; Podleśna, A.; Misiak, Lucjan E.

doi:10.1007/s10725-012-9681-7

Cited by 53 publications

(45 citation statements)

References 12 publications

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“…However, according to some authors, the best method to combine these goals is the use of physical treatments (Delibatowa and Ivanova, 2006;Flórez et al, 2007;Hernandez et al, 2010;Jun et al, 2007;Rochalska and Orzeszko-Rywka, 2008). In some researches opinion, presowing physical treatments of seeds are environmentally safe because they only modify biochemical and physiological processes in seeds, which, in consequence, accelerate seedling emergence and improve plant development (Chen et al, 2005a;Podleśny et al, 2012;Rubinov, 2003). Physical treatments, such as laser irradiation, do not replace chemical methods, but they can supplement them (Ouf and Abdel-Hardy, 1999;Vasilevski, 2003).…”

Section: Introductionmentioning

confidence: 99%

Changes in the germination process and growth of pea in effect of laser seed irradiation

Podleśna

Gładyszewska

Podleśny

et al. 2015

International Agrophysics

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A b s t r a c t. The aim of this study was to determine the effect of pre-sowing helium-neon (He-Ne) laser irradiation of pea seeds on changes in seed biochemical processes, germination rate, seedling emergence, growth rate, and yield. The first experimental factor was exposure to laser radiation: D0 -no irradiation, D3 -three exposures, D5 -five exposures, and the harvest dates were the second factor. Pre-sowing treatment of pea seeds with He-Ne laser light increased the concentrations of amylolytic enzymes and the content of indole-3-acetic acid (IAA) in pea seeds and seedlings. The exposure of seeds to He-Ne laser light improved the germination rate and uniformity and modified growth stages, which caused acceleration of flowering and ripening of pea plants. Laser light stimulation improved the morphological characteristics of plants by increasing plant height and leaf surface area. Irradiation improved the yield of vegetative and reproductive organs of pea, although the effects varied at the different growth stages. The increase in the seed yield resulted from a higher number of pods and seeds per plant, whereas no significant changes were observed in the number of seeds per pod. Both radiation doses exerted similarly stimulating effects on pea growth, development, and yield.

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Section: Introductionmentioning

confidence: 99%

Changes in the germination process and growth of pea in effect of laser seed irradiation

Podleśna

Gładyszewska

Podleśny

et al. 2015

International Agrophysics

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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%

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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“…H 2 O 2 generated during the conversion of O 2 − can be further eliminated by POD and other antioxidants (Apel and Hirt 2004). It has been reported that laser irradiation could enhance enzyme activities of seeds and plants (Chen et al 2005a;Jamil et al 2013;Podlesny et al 2012). Therefore, increasing SOD and POD activities under laser irradiation could be a strategy to protect cells from oxidative damage.…”

Section: Discussionmentioning

confidence: 99%

Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa

Liu

et al. 2016

Environ Sci Pollut Res

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Effects of laser irradiation on photosystem II (PS II) photochemical efficiencies, growth, and other physiological responses of Microcystis aeruginosa were investigated in this study. Results indicate that laser irradiation (wavelengths 405, 450, 532, and 650 nm) could effectively inhibit maximal PS II quantum yield (Fv/Fm) and maximal electron transport rates (ETR max ) of M. aeruginosa, while saturating light levels (E k ) of M. aeruginosa did not change significantly. Among the four tested wavelengths, 650 nm laser (red light) showed the highest inhibitory efficiency. Following 650 nm laser irradiation, the growth of M. aeruginosa was significantly suppressed, and contents of cellular photosynthetic pigments (chlorophyll a, carotenoid, phycocyanin, and allophycocyanin) decreased as irradiation dose increased. Meanwhile, laser irradiation enhanced the enzyme activities of superoxide dismutase (SOD) and peroxidase (POD) in M. aeruginosa cells. Lower irradiation doses did not change the intracellular microcystin contents, but higher dose irradiation (>1284 J cm −2 ) caused the release of microcystin into the culture medium. Transmission electron microscope examination showed that the ultrastructure of M. aeruginosa cells was destructed progressively following laser irradiation. Effects of laser irradiation on M. aeruginosa may be a combination of photochemical, electromagnetic, and thermal effects.

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Effect of laser light treatment on some biochemical and physiological processes in seeds and seedlings of white lupine and faba bean

Cited by 53 publications

References 12 publications

Changes in the germination process and growth of pea in effect of laser seed irradiation

Changes in the germination process and growth of pea in effect of laser seed irradiation

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

Effects of laser irradiation on a bloom forming cyanobacterium Microcystis aeruginosa

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