Microorganisms in Plant Growth and Development: Roles in Abiotic Stress Tolerance and Secondary Metabolites Secretion

Ntombikhona Appear Koza, Afeez Adesina Adedayo, Olubukola Oluranti Babalola, Abidemi Paul Kappo

Research output: Contribution to journalReview articlepeer-review

77 Citations (Scopus)

Abstract

Crops aimed at feeding an exponentially growing population are often exposed to a variety of harsh environmental factors. Although plants have evolved ways of adjusting their metabolism and some have also been engineered to tolerate stressful environments, there is still a shortage of food supply. An alternative approach is to explore the possibility of using rhizosphere microorganisms in the mitigation of abiotic stress and hopefully improve food production. Several studies have shown that rhizobacteria and mycorrhizae organisms can help improve stress tolerance by enhancing plant growth; stimulating the production of phytohormones, siderophores, and solubilizing phosphates; lowering ethylene levels; and upregulating the expression of dehydration response and antioxidant genes. This article shows the secretion of secondary metabolites as an additional mechanism employed by microorganisms against abiotic stress. The understanding of these mechanisms will help improve the efficacy of plant-growth-promoting microorganisms.

Original languageEnglish
Article number1528
JournalMicroorganisms
Volume10
Issue number8
DOIs
Publication statusPublished - Aug 2022

Keywords

  • abiotic stress
  • endophytes
  • plant biotechnology
  • plant microbiomes
  • secondary metabolites

ASJC Scopus subject areas

  • Microbiology
  • Microbiology (medical)
  • Virology

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