Foliar application of the triterpene derivative 24-methylen-elemo-lanosta-8,24-dien-3-one alleviates salt toxicity in grapevine

Autor: Mariam El Ghali, Mohamed Faize, Tayeb Koussa, Lalla Aicha Rifai, Noureddine Mazoir, Kacem Makroum, Amal Smaili, Ahmed Benharref, Malika Belfaiza
Rok vydání: 2018
Předmět:
Zdroj: Acta Physiologiae Plantarum. 40
ISSN: 1861-1664
0137-5881
DOI: 10.1007/s11738-018-2636-5
Popis: This work focused on the effect triterpene derivative 24-methylen-elemo-lanosta-8,24-dien-3-one (F3) on the induction of salt stress tolerance of the Moroccan grapevine cv. “Doukkali”. Hardwood cuttings of the grapevine from a homogeneous plant material collected in the field were grown in hydroponic medium under different salt concentrations and treated with 50 or 100 µg ml−1 of F3. Salt stress affected several physiological and biochemical parameters including relative water content, chlorophyll a and b content, peroxidase, and polyphenol oxidase activities, which decreased along with time. Meanwhile, proline, proteins, soluble sugars, H2O2, and carotenoid content, as well as phenolic compound content increased, suggesting an evidence of tolerance of this local variety to salinity. An exogenous supply of the triterpenic product increased all these parameters under normal conditions. In addition, F3 at low dose was found to be successful in lowering Na+ content and alleviating the inhibitory effects of salt stress on relative water content as well as on chlorophyll a and b.
Databáze: OpenAIRE
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