Induction of reactive oxygen species and necrotic death-like destruction in strawberry leaves by salinity

Tanou, Georgia; Molassiotis, Athanassios; Diamantidis, Grigorios

doi:10.1016/j.envexpbot.2008.09.005

Cited by 157 publications

(77 citation statements)

References 59 publications

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“…The results are in agreement with the findings reported by Madziga et al (2010). Environmental stresses such as drought and salinity can induce generation of reactive oxygen species (ROS) due to the disruption of cellular homeostasis (Sharma & Dubey, 2005;Tanou et al, 2009). …”

Section: Discussionmentioning

confidence: 99%

Simulated Drought and Salinity Modulates the Production of Phytochemicals in Acalypha wilkesiana

Odjegba¹,

Alokolaro²

2013

JPS

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In this study, 3-month old Acalypha wilkesiana plants grown from stem cuttings were exposed to simulated drought and salinity separately to assess the effects of such abiotic factors on the phytochemical production level in this plant. Preliminary study, based on the qualitative analysis, showed the presence of alkaloids, cardial glycosides, flavonoids, saponins, steroids, and tannins in A. wilkesiana leaves. Results of the quantitative analysis showed that plants under drought and salinity stresses produce lower quantity of alkaloids, flavonoids, and tannins while saponin production was increased.

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Section: Discussionmentioning

confidence: 99%

Simulated Drought and Salinity Modulates the Production of Phytochemicals in Acalypha wilkesiana

Odjegba¹,

Alokolaro²

2013

JPS

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“…High salt concentration causes an imbalance of cellular ions resulting in ion toxicity and osmotic stress while an increasing body of evidence suggests that high salinity induces the production of reactive oxygen species (ROS) and methylglyoxal (MG) in plants (Tanou et al, 2009;Mittler, 2002;Munns, 2002;Yadav et al, 2005a,b). ROS and MG are highly toxic to plant cell and by reacting with proteins, lipids, carbohydrates and DNA, they can lead to cell death in the absence of any protective mechanism (Foyer and Noctor, 1999;Hernandez et al, 2001;Singla-Pareek et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Evidence for a role of exogenous glycinebetaine and proline in antioxidant defense and methylglyoxal detoxification systems in mung bean seedlings under salt stress

Hossain

Fujita

2010

Physiol Mol Biol Plants

141

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In mung bean seedlings, salt stress (300 mM NaCl) caused a significant increase in reduced glutathione (GSH) content within 24 h of treatment as compared to control whereas a slight increase was observed after 48 h of treatment. Highest oxidized glutathione (GSSG) content was observed after 48 h to treatment with a concomitant decrease in glutathione redox state. Glutathione peroxidase, glutathione S-transferase, and glyoxalase II enzyme activities were significantly elevated up to 48 h, whereas glutathione reductase and glyoxalase I activities were increased only up to 24 h and then gradually decreased. Application of 15 mM proline or 15 mM glycinebetaine resulted in an increase in GSH content, maintenance of a high glutathione redox state and higher activities of glutathione peroxidase, glutathione S-transferase, glutathione reductase, glyoxalase I and glyoxalase II enzymes involved in the ROS and methylglyoxal (MG) detoxification system for up to 48 h, compared to those of the control and mostly also salt stressed plants, with a simultaneous decrease in GSSG content, H 2 O 2 and lipid peroxidation level. The present study suggests that both proline and glycinebetaine provide a protective action against saltinduced oxidative damage by reducing H 2 O 2 and lipid peroxidation level and by enhancing antioxidant defense and MG detoxification systems.

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“…Drought stress severity increases up to 30% of FC decreased CAT production; however, an increase in nitrogen application led to an increase in CAT production under severe drought stress conditions. The CAT activity decrease under severe drought and salinity stress conditions could be attributed to an increase in the accumulation of H 2 O 2 (Tanou et al, 2009). An overview of changes in CAT activity at different stages indicates that levels of CAT decrease in advanced stages of plant growth; this could mean a decrease in CAT ability to scavenge ROS.…”

Section: Discussionmentioning

confidence: 98%

Changes in enzymatic and nonenzymatic antioxidant defense mechanisms of canola seedlings at different drought stress and nitrogen levels

Ahmadi¹,

Ebadi²,

Jahanbakhsh³

et al. 2015

Turk J Agric For

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To evaluate the responses of canola seedlings to different levels of drought stress and nitrogen at different growth stages, a factorial experiment was conducted in a completely randomized design with three replications at the experimental greenhouse of Mohaghegh Ardabili University in 2013. Treatments included three levels of drought stress (30%, 50%, and 70% of FC) and five levels of nitrogen (control, based on soil test results; 25% less than the recommended level; 50% less than the recommended level; 25% more than the recommended level; and 50% more than the recommended level). The recommended level of nitrogen, based on soil test results, was 0.09 g of nitrogen per kilogram of soil. Results showed that drought stress, nitrogen, and their interaction significantly affected the enzymatic activity of antioxidant catalase (CAT), polyphenol oxidase (PPO), and peroxidase (PO) at various stages of growth. Proline was also affected by drought stress and nitrogen. Maximum CAT activity (794.04 OD mg protein min -1 ) was observed at the 4-6 leaf stage under mild drought stress conditions (50% of FC) and a nitrogen application rate 50% less than the recommended level. Increased rates of nitrogen enhanced the PPO activity at the 4-6 and 6-8 leaf stages. PO had a negative response to increased rates of nitrogen application. The highest rate of increase in proline was at the 8-10 leaf stage: 205% and 207% higher under mild drought stress (50% of FC) and severe drought stress (30% of FC) conditions, respectively, compared to favorable moisture conditions (70% of FC). Increased nitrogen application led to an increase in proline production at all stages of sampling (4-6, 6-8, and 8-10 leaf stages).

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Induction of reactive oxygen species and necrotic death-like destruction in strawberry leaves by salinity

Cited by 157 publications

References 59 publications

Simulated Drought and Salinity Modulates the Production of Phytochemicals in Acalypha wilkesiana

Simulated Drought and Salinity Modulates the Production of Phytochemicals in Acalypha wilkesiana

Evidence for a role of exogenous glycinebetaine and proline in antioxidant defense and methylglyoxal detoxification systems in mung bean seedlings under salt stress

Changes in enzymatic and nonenzymatic antioxidant defense mechanisms of canola seedlings at different drought stress and nitrogen levels

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