Streptomyces as a promising biological control agents for plant pathogens

Abstract

Plant diseases caused by pathogenic microorganisms in agriculture present a considerable obstacle, resulting in approximately 30–40% crop damage. The use of conventional techniques to manage these microorganisms, i.e., applying chemical pesticides and antimicrobials, has been discovered to have adverse effects on human health and the environment. Furthermore, these methods have contributed to the emergence of resistance among phytopathogens. Consequently, it has become imperative to investigate natural alternatives to address this issue. The Streptomyces genus of gram-positive bacteria is a potentially viable natural alternative that has been extensively researched due to its capacity to generate diverse antimicrobial compounds, such as metabolites and organic compounds. Scientists globally use diverse approaches and methodologies to extract new bioactive compounds from these bacteria. The efficacy of bioactive compounds in mitigating various phytopathogens that pose a significant threat to crops and plants has been demonstrated. Hence, the Streptomyces genus exhibits potential as a biological control agent for combating plant pathogens. This review article aims to provide further insight into the Streptomyces genus as a source of antimicrobial compounds that can potentially be a biological control against plant pathogens. The investigation of various bioactive compounds synthesized by this genus can enhance our comprehension of their prospective utilization in agriculture.

Bacterial communities associated with Acrobeles complexus nematodes recovered from tomato crops in South Africa

“…complexus positively impacts tomato production and increases the yield. In contrast, Streptomyces is a promising biocontrol agent of plant pathogens [ 60 ], and some species are plant pathogens, such as S . scabies [ 61 ].…”

Genomic insights into an endophytic Streptomyces sp. VITGV156 for antimicrobial compounds

“…To correlate the relevance of this study to plant pathogen control, many citations are there: Streptomyces griseus H7602 and Streptomyces griseorubens E44G are associated with the control of Phytophthora capsici and Fusarium oxysporum f. sp. lycopersici , both devastating pathogens of tomato plants ( Khan et al, 2023 ). The ecological significance of these findings lies in the potential of these Streptomyces strains to offer sustainable solutions for disease management in tomato cultivation.…”

Rhizosphere Microorganisms Supply Availability of Soil Nutrients and Induce Plant Defense

“…A classic example of this is the production of antibiotics by soil bacteria of the genus Streptomyces . Streptomyces are renowned for their ability to produce a wide array of secondary metabolites, including antibiotics like streptomycin and tetracycline [ 166 ]. These compounds play a significant role in the soil microbial ecosystem by mediating competitive interactions.…”