2013
DOI: 10.1590/s2197-00252013005000004
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Interaction of polyamine on oxidative stress induced by exogenously applied hydrogen peroxide in Salvinia natans Linn

Abstract: A hydroponics experiment was carried out to study the role of hydrogen peroxide (H 2 O 2 ) through changes of oxidative stress and antioxidation activity in Salvinia natans Linn. H 2 O 2 is an active oxygen species, widely generated in many biological systems, and mediates various physiological and biochemical processes in plants. In this study, we demonstrated that exogenous H 2 O 2 causes the degradation of pigments and induces the oxidative stress and the antioxidation activity. These effects enhanced with … Show more

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Cited by 19 publications
(15 citation statements)
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“…The products of PAL and TAL are modulated via phenylpropanoid metabolism to precursors of secondary metabolites containing flavonoid pigments and phytoalexins Ahmedet al (2016). Moreover, our results regarding Put treatments were in line with Mandal et al (2013), they documented that total phenolics and flavonoids content increased in Salvinia natans plant under exogenous application of Put (1mM) and 100µM H 2 O 2 as an indirect stressor for establishment of oxidative damage compared with the highest dose of H 2 O 2 (100µM)only without Put treatment. This increase may be ascribe to polyamine has been in regulation H 2 O 2 generation plants, since H 2 O 2 is generally one of decomposition products from Put oxidation by di-amine oxidase catalyzed by Cu Ao during stress conditions Zabihi et al (2014), Li et al(2015) which in turn activation of phenolic synthesis as potential agents in scavenging activity of ROS.…”
Section: Leaf Phenolic Compoundssupporting
confidence: 89%
“…The products of PAL and TAL are modulated via phenylpropanoid metabolism to precursors of secondary metabolites containing flavonoid pigments and phytoalexins Ahmedet al (2016). Moreover, our results regarding Put treatments were in line with Mandal et al (2013), they documented that total phenolics and flavonoids content increased in Salvinia natans plant under exogenous application of Put (1mM) and 100µM H 2 O 2 as an indirect stressor for establishment of oxidative damage compared with the highest dose of H 2 O 2 (100µM)only without Put treatment. This increase may be ascribe to polyamine has been in regulation H 2 O 2 generation plants, since H 2 O 2 is generally one of decomposition products from Put oxidation by di-amine oxidase catalyzed by Cu Ao during stress conditions Zabihi et al (2014), Li et al(2015) which in turn activation of phenolic synthesis as potential agents in scavenging activity of ROS.…”
Section: Leaf Phenolic Compoundssupporting
confidence: 89%
“…Though there recorded no such variation in band numbers but plants could vividly tune the genetic makeup to antagonize the Cd sensitivity with CAT expression. The downregulation of CAT activity as reported in many crop species under metal stress could be explained either impairment of de novo synthesis of the enzyme or the overload of cellular H 2 O 2 , if any, that creates toxicity to denature the proteins [23]. In conext to bioindication the apparent no change of CAT expression to Cd toxicity could thus find hardly any possibility in Marsilea plants.…”
Section: Resultsmentioning
confidence: 94%
“…OH) [10]. On the other hand, the cellular level of H 2 O 2 could be toxic enough to inhibit the enzymes' activity, leaving the plant vulnerable to oxidative damage [12]. Thus, allelochemicals present in plants can be used in weeds control.…”
Section: Introductionmentioning
confidence: 99%