Evaluation of the effect of biological elicitors on the resistance to salinity stress in the date palm (Phoenix dactylifera L., cv. Stameran)
Bita Sadeghi
Science and ResearchBranch, Islamic Azad University, Tehran, IranVahid Abdossisi
Islamic Azad University, Tehran, Iranhttps://orcid.org/0000-0001-8215-2865
Vahid Zarrinnia
Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, IranNader Hasanzadeh
Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iranhttps://orcid.org/0000-0003-4168-1001
Abstrakt
To evaluate the effect of biological elicitors, including fungi and bacteria, on resistance to salinity stress in the date palms. The experiment was conducted in a factorial, completely randomized design (CRD) with two factors, i.e., salinity with three levels (0, 150, and 300 mM) and the fungal and bacterial elicitors at five levels. The elicitors treatments were comprised of fungal consortium (BFC), fungal elicitor at 1,000 ppm concentration (EL1), fungal elicitor at 2,000 ppm concentration (EL2), and the bacteria (BS), Bacillus safensis, and Bacillus pumilus. The results showed that the lowest hydrogen peroxide content (278 µmol/g) was found in the seedling treated with elicitor of B. safensis at the zero salinity level. Catalase enzyme activity was higher in plants treated with fungal elicitor at 2,000 ppm concentration and the zero salinity level, B. safensis at the 150 mM salinity level, and fungal consortium at the 300 mM salinity level. The hydrogen peroxide content in the plant decreased as the activity of PAL and PPO enzymes increased. Applying an elicitor may reduce the effects of salinity stress in the date palm, but the stress level could determine the impact of each elicitor.
Słowa kluczowe:
antioxidant enzymes, bacteria, concentration, fungus, hydrogen peroxideBibliografia
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Science and ResearchBranch, Islamic Azad University, Tehran, Iran
Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran
Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran https://orcid.org/0000-0003-4168-1001
Licencja
Utwór dostępny jest na licencji Creative Commons Uznanie autorstwa 4.0 Międzynarodowe.
Artykuły są udostępniane na zasadach CC BY 4.0 (do 2021 r. na zasadach CC BY-NC-ND 4.0 międzynarodowe).
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Autor podpisuje oświadczenie o oryginalności dzieła, wkładzie poszczególnych osób i źródle finansowania.
