Extracts from Yeast and Carrot Roots Enhance Maize Performance under Seawater-Induced Salt Stress by Altering Physio-Biochemical Characteristics of Stressed Plants

  • Arafat Abdel Hamed Abdel LatefEmail author
  • Mohammad Golam Mostofa
  • Md. Mezanur Rahman
  • Ibrahim Bayoumi Abdel-Farid
  • Lam-Son Phan TranEmail author


Damage to plant productivity due to soil salinity is a major agricultural problem, necessitating the development of effective salinity management measures. Here, we sought the potential effects of yeast and carrot extracts, and their associated mechanisms in the alleviation of seawater-induced salt stress in maize. Pretreatment of maize seeds with yeast or carrot extract provided maize plants with enormous abilities in reducing growth inhibition and biomass loss when exposed to seawater. The better growth performance of yeast extract- and carrot extract-primed plants under saline conditions coincided with improved protection of the photosynthetic pigments, chlorophylls and carotenoids. The primed plants also restricted Na+ accumulation in both roots and shoots while maintaining a higher K+ content and lower Na+/K+ ratio when compared with that of non-primed plants. Yeast extract and carrot extract also potentiated salt tolerance mechanisms by accelerating the production of osmolytes, as evidenced by accumulating levels of total free amino acids and soluble sugars, especially in the roots of primed plants during salinity. The enhanced levels of ascorbic acid and phenolic compounds, and the heightened activities of reactive oxygen species-detoxifying enzymes superoxide dismutase, catalase, and ascorbate peroxidase with concurrent reduction of lipid peroxidation in the leaves of primed plants clearly indicated a positive impact of yeast extract- and carrot extract-priming on the antioxidant system of maize under salt stress. Our results together suggest decisive roles of yeast extract and carrot extract in the management of salt-induced adverse effects in economically important maize, and perhaps other crops.


Biostimulants Maize Oxidative damage Seed-priming Soil salinity Na+/K+ balance 



M.G.M gratefully acknowledges the fellowship from the Japanese Society for the Promotion of Science (JSPS).

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Authors and Affiliations

  • Arafat Abdel Hamed Abdel Latef
    • 1
    • 2
    Email author
  • Mohammad Golam Mostofa
    • 3
  • Md. Mezanur Rahman
    • 4
  • Ibrahim Bayoumi Abdel-Farid
    • 5
    • 6
  • Lam-Son Phan Tran
    • 7
    • 8
    Email author
  1. 1.Botany Department, Faculty of ScienceSouth Valley UniversityQenaEgypt
  2. 2.Biology Department, Turabah University CollegeTaif University, Turabah BranchTurabahSaudi Arabia
  3. 3.Department of Biochemistry and Molecular BiologyBangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipurBangladesh
  4. 4.Department of Agroforestry and EnvironmentBangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipurBangladesh
  5. 5.Department of Botany, Faculty of ScienceAswan UniversityAswanEgypt
  6. 6.Department of Biology, College of ScienceAljouf UniversitySakakaSaudi Arabia
  7. 7.Institute of Research and DevelopmentDuy Tan UniversityDa NangVietnam
  8. 8.Stress Adaptation Research UnitRIKEN Center for Sustainable Resource ScienceYokohamaJapan

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