Exogenous salicylic acid alleviates NaCl toxicity and increases antioxidative enzyme activity in Lycopersicon esculentum

He, Yao; Zhu, Zhujun

doi:10.1007/s10535-008-0155-8

Cited by 78 publications

(50 citation statements)

References 24 publications

(21 reference statements)

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“…In this study, Na + /K + (Table 2) gradually increased with increasing salt concentration in each organ of the evaluated plants; a strong negative correlation between K + over Na + uptake in A. annua under salinity was observed. Our results were consistent with previous studies (El-Tayeb 2005;Guo et al 2011;He and Zhu 2008). Obviously, increased ratio of Na + and K + was the result of excessive Na + uptake.…”

Section: Discussionsupporting

confidence: 94%

“…Results on the accumulation of Mg 2+ in the plant that suffered salt stress were not consistent. However, SA was consistently helpful to Mg 2+ accumulation (Gunes et al 2007;He and Zhu 2008). The specific reason needs further research.…”

Section: Discussionmentioning

confidence: 90%

“…Decline in photosynthetic capacity negatively affected the accumulation of dry matter. (Guo et al 2011;He and Zhu 2008;Tang et al 2007). Additionally, salt stress produced plenty of reactive oxygen species (ROS) which stimulated the oxidative damage of lipids, proteins, and nucleic acids, even caused the degradation of membrane system (Demiral and Türkan 2005).…”

Section: Introductionmentioning

confidence: 99%

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The physiological response of Artemisia annua L. to salt stress and salicylic acid treatment

Lin

Zhang

et al. 2014

Physiol Mol Biol Plants

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Salinity has a great influence on plant growth and distribution. A few existing reports on Artemisia annua L. response to salinity are concentrated on plant growth and artemisinin content; the physiological response and salt damage mitigation are yet to be understood. In this study, the physiological response of varying salt stresses (50, 100, 200, 300, or 400 mM NaCl) on A. annua L. and the effect of exogenous salicylic acid (0.05 or 0.1 mM) at 300-mM salt stress were investigated. Plant growth, antioxidant enzyme activity, proline, and mineral element level were determined. In general, increasing salt concentration significantly reduced plant growth. Superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were stimulated by salt treatment to a higher enzyme activity in treated plants than those in untreated plants. Content of proline had a visible range of increment in the salt-treated plants. Distribution of mineral elements was in inconformity: Na + and Ca 2+ were mainly accumulated in the roots; K + and Mg 2+ were concentrated in leaves and stems, respectively. Alleviation of growth arrest was observed with exogenous applications of salicylic acid (SA) under salt stress conditions. The activity of SOD and POD was notably enhanced by SA, but the CAT action was suppressed. While exogenous SA had no discernible effect on proline content, it effectively inhibited excessive Na + absorption and promoted Mg 2+ absorption. Ca 2+ and K + contents showed a slight reduction when supplemented with SA. Overall, the positive effect of SA towards resistance to the salinity of A. annua will provide some practical basis for A. annua cultivation.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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The physiological response of Artemisia annua L. to salt stress and salicylic acid treatment

Lin

Zhang

et al. 2014

Physiol Mol Biol Plants

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“…To give an example, foliar SA application significantly improved the growth of NaCl-treated tomato plants. This alleviation of NaCl toxicity by SA was related to a decrease in Na concentrations, an increase in K and Mg concentrations in the shoots and roots, and an increase in the antioxidant mechanism [225]. SA application was also found to partially protect pistachio seedlings against salt stress injuries by improving different physiological parameters such as RWC, chlorophyll content, chlorophyll fluorescence and the photosynthetic rate [226].…”

Section: Effect Of Biostimulants In the Salt-stress Responsementioning

confidence: 91%

Plant Responses to Salt Stress: Adaptive Mechanisms

et al. 2017

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This review deals with the adaptive mechanisms that plants can implement to cope with the challenge of salt stress. Plants tolerant to NaCl implement a series of adaptations to acclimate to salinity, including morphological, physiological and biochemical changes. These changes include increases in the root/canopy ratio and in the chlorophyll content in addition to changes in the leaf anatomy that ultimately lead to preventing leaf ion toxicity, thus maintaining the water status in order to limit water loss and protect the photosynthesis process. Furthermore, we deal with the effect of salt stress on photosynthesis and chlorophyll fluorescence and some of the mechanisms thought to protect the photosynthetic machinery, including the xanthophyll cycle, photorespiration pathway, and water-water cycle. Finally, we also provide an updated discussion on salt-induced oxidative stress at the subcellular level and its effect on the antioxidant machinery in both salt-tolerant and salt-sensitive plants. The aim is to extend our understanding of how salinity may affect the physiological characteristics of plants.

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“…To give an example, foliar SA application significantly improved the growth of NaCl-treated tomato plants. This alleviation of NaCl toxicity by SA was related to a decrease in Na concentrations, an increase in K and Mg concentrations in the shoots and roots, and an increase in the antioxidant mechanism [219]. SA application was also found to partially protect pistachio seedlings against salt stress injuries by improving different physiological parameters such as RWC, chlorophyll content, chlorophyll fluorescence and the photosynthetic rate [220].…”

Section: Effect Of Biostimulants In the Salt-stress Responsementioning

confidence: 91%