Physiological and antioxidant responses of the perennial halophyte Crithmum maritimum to salinity

Amor, Nader Ben; Hamed, Karim Ben; Debez, Ahmed; Grignon, Claude; Abdelly, Chédly

doi:10.1016/j.plantsci.2004.11.002

Cited by 272 publications

(121 citation statements)

References 75 publications

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“…This difference between the two provenances could be attributed to the higher capacity of Soliman to restrict sodium accumulation in above-ground organs, mainly leaves (Table 1). Sodium accumulation within tissues induced an oxidative stress, which is in agreement with literature (Chaparzadeh et al, 2004;Ben Amor et al, 2005;Ashraf, 2009). The damages resulting from the oxidative stress were estimated by MDA concentration and electrolyte leakage (EL).…”

Section: Discussionsupporting

confidence: 89%

Enzymatic and non-enzymatic antioxidant responses of two Mentha pulegium provenances to salt stress

Çalışkan¹,

Odabas²,

Çırak³

et al. 2010

J. Med. Plants Res.

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The aim of the present investigation was to evaluate the impact of moderate salinity in two Tunisian Mentha pulegium L. provenances differing in their salt sensitivity and to identify the antioxidant system responsible for the maintenance of plant vigor in the less sensitive provenance. Seedlings of the two provenances (Tekelsa and Soliman) were hydroponically grown at 0 and 35 mM NaCl over 15 and 45 days. Both the less (Soliman) and the more sensitive (Tekelsa) provenances behaved as a sensitive glycophyte not able to tolerate such a moderate salinity. But, Soliman showed less lipid peroxidation and electrolyte leakage since it restricted sodium uptake and accumulation into its tissues. In addition, lipid peroxidation and electrolyte leakage drastically increased with plant age. Interestingly, polyphenol production and antiradical activity increased with plant age, too. Salt stress stimulated these two parameters, especially in the less sensitive provenance, Soliman. During the first weeks of salt treatment, M. pulegium responded to the salt-induced oxidative stress by an activation of its enzymatic system then the non-enzymatic system took place.

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Section: Discussionsupporting

confidence: 89%

Enzymatic and non-enzymatic antioxidant responses of two Mentha pulegium provenances to salt stress

Çalışkan¹,

Odabas²,

Çırak³

et al. 2010

J. Med. Plants Res.

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show abstract

“…6). The correlation between salinity tolerance and the increase of SOD activity has been demonstrated in many works (Hernández et al, 2001;Sreenivasulu et al, 2000;Ben Amor et al, 2005;Mandhania et al, 2006;Koca et al, 2007;Ellouzi et al, 2011). Increased SOD activity in the cv.…”

Section: Discussionmentioning

confidence: 86%

“…The extent of lipid peroxidation was estimated by determining the amount of MDA in the leaves by the method of Ben Amor et al (2005). Fresh shoots (0.15 g) were homogenized in 1.5 mL of 0.1% (w/v) trichloroacetic acid (TCA) solution.…”

Section: Lipid Peroxidationmentioning

confidence: 99%

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Feki

Tounsi

Brini

2018

Span. j. agric. res.

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It has been demonstrated previously that the physiological and molecular analysis of seedlings of the tolerant (Om Rabia3) and susceptible (Mahmoudi) Tunisian wheat genotypes were different at short and long-term response to salinity. In this study, we examined the antioxidant defence system in seedlings of these two cultivars at short-term response to different NaCl concentrations. The findings showed that high salinity tolerance of cv. Om Rabia3, as manifested by lower decrease in its dry biomass, was associated with lower malondialdehyde and hydrogen peroxide contents, lower accumulation of the superoxide (O 2 -) in the roots and the shoots, and also lower decrease in ascorbate content than those in cv. Mahmoudi. Moreover, the expression of some genes coding for antioxidant enzymes such as the catalase, the superoxide dismutase and the peroxidase were enhanced by NaCl stress especially in the salt-tolerant cultivar. In parallel, their activities were increased in response to the same condition of stress and especially in the cv. Om Rabia3. Taken together, these data suggested that the capacity to limit oxidative damage is important for NaCl tolerance of durum wheat.

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“…Inferior physiological quality was observed in seeds of Silvânia RR and Jataí (Tables 1 and 2), which may be associated with greater activity of the PRX enzyme system due to the high levels of reactive oxygen species. High concentrations of reactive oxygen species cause oxidative damages and, in the first stage, there is an increase in the enzymatic and non-enzymatic antioxidant processes for maintenance of this species at non-toxic levels (Alscher, Erturk;Health, 2002;Ben Amor et al, 2005;Moller, Jensen;Hansson, 2007).…”

Section: Peroxidasementioning

confidence: 99%

Enzyme activity in soybean seeds produced under foliar application of manganese

et al. 2014

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Several factors affect the quality of soybean seeds, including the mineral nutrition of plants. Manganese (Mn) is an important nutrient because it has as one of its functions the enzyme activation. The aim of this study was to evaluate enzyme activity in seeds of soybean cultivars produced with foliar application of different doses of Mn. The experiment was conducted at the Universidade Federal de Lavras (UFLA) (Federal University of Lavras) in randomized blocks with three replications and 4 x 4 x 2 factorial arrangement consisting of four soybean cultivars, two conventional and its genetically modified RR derived (BRS Celeste and BRS Baliza RR; BRSGO Jataí and BRS Silvânia RR), four doses of Mn via foliar application (0; 200; 400 and 600 g Mn ha -1 ) and two stages of application (R 1 or R 3 ). In the seeds, the expressions of the enzymes esterase (EST), malate dehydrogenase (MDH), alcohol dehydrogenase (ADH), superoxide dismutase (SOD), peroxidase (PRX) and isocitratelyase (ICL) were determined. For evaluation of physiological quality, the germination test and emergence speed index (ESI) were performed. The Mn content in the seeds was also determined. The expression of the enzymes EST, SOD, PRX and ICL in soybean seeds are affected by foliar application of Mn, regardless of the stages of application. In the seeds of the cultivars that showed better physiological quality, Celeste and Baliza RR, greater expressions of the enzymes ADH and ICL and lower expressions of MDH and of PRX were observed.Index terms: Enzymes, Glycine max, quality, micronutrients. RESUMODiversos fatores afetam a qualidade das sementes de soja, dentre eles a nutrição mineral das plantas. O manganês (Mn) é um nutriente importante por ter como uma de suas funções a ativação enzimática. O objetivo, neste trabalho, foi avaliar a atividade enzimática em sementes de cultivares de soja, produzidas com aplicação foliar de diferentes doses de Mn. O experimento foi conduzido na Universidade Federal de Lavras (UFLA), em blocos casualizados, com três repetições e esquema fatorial 4 x 4 x 2, sendo quatro cultivares de soja, duas convencionais e suas derivadas transgênicas RR (BRS Celeste e BRS Baliza RR; BRSGO Jataí e BRS Silvânia RR), quatro doses de Mn via foliar (0; 200; 400 e 600 g Mn ha -1 ) e dois estádios de aplicação (R 1 ou R 3 ). Nas sementes, foram determinadas as expressões das enzimas esterase (EST), malato desidrogenase (MDH), álcool desidrogenase (ADH), superóxido dismutase (SOD), peroxidase (PRX) e isocitrato liase (ICL). Para avaliação da qualidade fisiológica foram realizados os testes de Germinação e de Índice de velocidade de emergência (IVE). Determinou-se, também, o teor de Mn nas sementes. A expressão das enzimas EST, SOD, PRX e ICL em sementes de soja são influenciadas pela aplicação de Mn via foliar, independente do estádio de aplicação. Nas sementes das cultivares, as quais apresentaram melhor qualidade fisiológica, Celeste e Baliza RR, foram constatadas maiores expressões das enzimas ADH e ICL e menores expressões de ...

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Physiological and antioxidant responses of the perennial halophyte Crithmum maritimum to salinity

Cited by 272 publications

References 75 publications

Enzymatic and non-enzymatic antioxidant responses of two Mentha pulegium provenances to salt stress

Enzymatic and non-enzymatic antioxidant responses of two Mentha pulegium provenances to salt stress

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Enzyme activity in soybean seeds produced under foliar application of manganese

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