Alleviation of salt stress and changes in glycyrrhizin accumulation by arbuscular mycorrhiza in liquorice (Glycyrrhiza glabra) grown under salinity stress
| Autor: | Ehsan Mohseni Fard, Mohsen Ashrafi, Setareh Amanifar, Maryam Khodabandeloo, Mohammad Sadegh Askari |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Soil salinity biology fungi food and beverages Plant Science biology.organism_classification 01 natural sciences Salinity Arbuscular mycorrhiza 03 medical and health sciences chemistry.chemical_compound Horticulture 030104 developmental biology chemistry Symbiosis Shoot Glycyrrhiza Proline Glycyrrhizin Agronomy and Crop Science Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Environmental and Experimental Botany. 160:25-34 |
| ISSN: | 0098-8472 |
| DOI: | 10.1016/j.envexpbot.2019.01.001 |
| Popis: | The symbiotically interaction of arbuscular mycorrhiza (AM) with liquorice (Glycyrrhiza glabra) which is widely used in traditional Iranian medicine, may have a good potential to enhance host plant growth and resistance to salt stress and may regulate the synthesis and accumulation pattern of secondary metabolites in plant tissues. The aims of this study were to assess the effect of AM fungus Funneliforms mosseae on liquorice plant's growth and nutrition, and the expression of important genes participated in the glycyrrhizin biosynthesis under salinity stress. The salinity stress induced a decreased trend in root fungal colonization, growth parameters, K and P concentrations and K+/Na+ ratios. Moreover, salinity caused a significant increase in electrolyte leakage and Na+ concentration in shoot and root of liquorice. AM colonization considerably increased P and K concentrations under salinity stress and promoted shoot proline accumulation and a higher K+/Na+ ratio and concentration of glycyrrhizin. The expression of three genes including beta-amyrin synthas (bAS), squalene synthase1 (SQS1) and P450 under different treatments were assessed by qRT-PCR. The highest increase in bAS and P450 gene expression was observed in stressed mycorrhizal plants. The expression of SQS1 was higher in stress condition compared to non-stressed plants. This study indicated the ameliorating effects of arbuscular mycorrhizal symbiosis in liquorice plant under salinity stress. The symbiosis of liquorice with AM fungi can be suggested as an alternative to enhance liquorice quality for pharmaceutical purposes and a practical approach for exploiting saline soils. |
| Databáze: | OpenAIRE |
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