Effects of exogenous salicylic acid on growth and H2O2-metabolizing enzymes in rice seedlings under lead stress

Chen, Jing; C, Zhu; Li, Liping; Sun, Zhongyang; Pan, Xing‐Bin

doi:10.1016/s1001-0742(07)60007-2

Cited by 114 publications

(41 citation statements)

References 28 publications

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“…Furthermore, in regard to the lead effect on the leaf pigments, identical results have been found by researchers like Padjama et al (1990;Moreno-Casseles et al, 2000;Kosobrukhov et al, 2004;Qureshi et al, 2005;Chen et al, 2007;Gopal and Rizvi, 2008) who noted a disturbance in pigments contained in the leaves of young plants grown from seeds treated with heavy metals. In addition, chlorophyll (b) appears to be more sensitive than chlorophyll (a) (Wozny et al, 1995;Vodnik et al, 1999).…”

Section: Discussionsupporting

confidence: 79%

Lead Phytotoxicity Induced Changes in Biochemical Markers in Germination and Seedlings in Durum Wheat <i>Triticum durum</i> Desf. Cv.Vitron and Gta

Slimani

Boudelaa

Abdelmadjid

et al. 2017

American Journal of Environmental Sciences

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Among the heavy metals most commonly found on land, lead is a strongly represented pollutant in soil and sediments. It is easily absorbed and accumulated in different parts of plants. On the macroscopic scale, lead causes unfavorable effects on plants. First and in the event of excess, it may exert toxicity affecting several stages of germination development in leaf formation and root elongation in the early stages of development. The effect of lead on two varieties of durum wheat Triticum durum cv Gta and Vitron have been analyzed on germination under laboratory conditions. The objective is to determine the influence of lead on (i) germinal parameters and (ii) the stress physiological markers. The experiment was set up in a completely randomized design with 3 replications of 20 seeds per variety, including 4 concentrations of Pb(NO 3 ) 2 (0, 320, 430 and 660 ppm) on the germination. Average ambient temperature was 22°C, the humidity was 32% and photoperiod light/dark was 16/8 h. The obtained results showed a real sensitivity of germination to lead. Indeed, it was noted a total absence of germination of the two varieties in all seeds treated with the highest concentration. The treatment of seeds by the increasing doses of lead decreased the germinative faculty considerably, the content of pigments and disrupted the cellular metabolism, the proteins, the proline and glutathione levels. These results indicated that lead stress caused a decrease in germinal parameters and significant impairment of cell biochemical markers. Such effect was inversely proportional to the doses used. It was also noted that the Gta variety was less sensitive to lead toxicity than Vitron.

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Section: Discussionsupporting

confidence: 79%

Lead Phytotoxicity Induced Changes in Biochemical Markers in Germination and Seedlings in Durum Wheat <i>Triticum durum</i> Desf. Cv.Vitron and Gta

Slimani

Boudelaa

Abdelmadjid

et al. 2017

American Journal of Environmental Sciences

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“…It was reported that the addition of silicon increased SOD activity under stress of salt and drought [41,42], and the increase of SOD activity induced the higher tolerance to oxidative stress [46]. Similar patterns of CAT activity had been observed in plant tissues under cadmium toxicity, acid rain and lead stress [47][48][49]. The antioxidant enzymes including GPX, GR and GST are all related to GSH cycles, which promote the conversion of GSH to remove environmental oxidative stress.…”

Section: Enzymatic Antioxidant Systemmentioning

confidence: 61%

Allelochemical ethyl 2-methyl acetoacetate (EMA) induces oxidative damage and antioxidant responses in Phaeodactylum tricornutum

Yang

Liu

Zhou

et al. 2011

Pesticide Biochemistry and Physiology

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“…• inhibition of plastoquinone and carotenoid synthesis (Kosobrukhov et al 2004;Chen et al 2007;Liu et al 2008;Cenkci et al 2010), • obstruction of the electron transport system (Qufei et al 2009),…”

Section: Photosynthesis Effectsmentioning

confidence: 99%

Lead Uptake, Toxicity, and Detoxification in Plants

Pourrut

Shahid

Dumat

et al. 2011

Reviews of Environmental Contamination and Toxicology

479

388

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Effects of exogenous salicylic acid on growth and H2O2-metabolizing enzymes in rice seedlings under lead stress

Cited by 114 publications

References 28 publications

Lead Phytotoxicity Induced Changes in Biochemical Markers in Germination and Seedlings in Durum Wheat <i>Triticum durum</i> Desf. Cv.Vitron and Gta

Lead Phytotoxicity Induced Changes in Biochemical Markers in Germination and Seedlings in Durum Wheat <i>Triticum durum</i> Desf. Cv.Vitron and Gta

Allelochemical ethyl 2-methyl acetoacetate (EMA) induces oxidative damage and antioxidant responses in Phaeodactylum tricornutum

Lead Uptake, Toxicity, and Detoxification in Plants

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