Role of Salicylic Acid in Promoting Salt Stress Tolerance and Enhanced Artemisinin Production in Artemisia annua L.

Aftab, Tariq; Khan, M. Masroor A.; Silva, Jaime A. Teixeira da; Idrees, Mohd.; Naeem, M.; Moinuddin, Mohammed

doi:10.1007/s00344-011-9205-0

Cited by 110 publications

(45 citation statements)

References 57 publications

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“…Previous studies on the A. annua response to salinity mainly concentrated on photosynthetic performance, cell oxidation damage, and artemisinin content. Less information on ionic homeostasis and protection from salt damage was reported (Aftab et al 2011;Prasad et al 1998;Qureshi et al 2005). Antioxidant response of A. annua to salt stress also remained to be elucidated.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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“…The commercialization of artemisinin, however, is greatly limited due to the low artemisinin content of A. annua (0.01-0.8% of dry weight). Research groups all over the world are using different strategies to enhance artemisinin content, such as spraying with exogenous phytohormones (Aftab et al, 2011;Caretto et al, 2011) and overexpressing key artemisinin biosynthetic pathway enzyme genes (Shen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Cloning and characterization of DELLA genes in Artemisia annua

Shen

Cui

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Gibberellins (GA) are some of the most important phytohormones involved in plant development. DELLA proteins are negative regulators of GA signaling in many plants. In this study, the full-length cDNA sequences of three DELLA genes were cloned from Artemisia annua. Phylogenetic analysis revealed that AaDELLA1 and AaDELLA2 were located in the same cluster, but AaDELLA3 was not. Subcellular localization analysis suggested that AaDELLAs can be targeted to the nucleus and/or cytoplasm. Real-time PCR indicated that all three AaDELLA genes exhibited the highest expression in seeds. Expression of all AaDELLA genes was enhanced by exogenous MeJA treatment but inhibited by GA 3 treatment. Yeast two-hybrid assay showed that AaDELLAs could interact with basic helix-loop-helix transcription factor AaMYC2, suggesting that GA and JA signaling may be involved in cross-talk via DELLA and MYC2 interaction in A. annua.

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“…The increase in the content of nitrates and thereby activity of NR due to exogenous SA treatment under normal growth conditions was also reported by Hayat et al (2005Hayat et al ( , 2012. When SA was applied to the plants, NR activities also increased significantly in the leaves of salt-treated Artemisia annua plants (Aftab et al, 2011).…”

Section: Discussionmentioning

confidence: 75%

Interactive effects of salicylic acid on enzymes of nitrogen metabolism in clusterbean (Cyamopsis tetragonoloba L.) under chromium(VI) toxicity

Sangwan

Kumar

Gulati

et al. 2015

Biocatalysis and Agricultural Biotechnology

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Role of Salicylic Acid in Promoting Salt Stress Tolerance and Enhanced Artemisinin Production in Artemisia annua L.

Cited by 110 publications

References 57 publications

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

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

Cloning and characterization of DELLA genes in Artemisia annua

Interactive effects of salicylic acid on enzymes of nitrogen metabolism in clusterbean (Cyamopsis tetragonoloba L.) under chromium(VI) toxicity

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