The potential of lactic acid bacteria in mediating the control of plant diseases and plant growth stimulation in crop production - A mini review

Abstract

The microbial diseases cause significant damage in agriculture, resulting in major yield and quality losses. To control microbiological damage and promote plant growth, a number of chemical control agents such as pesticides, herbicides, and insecticides are available. However, the rising prevalence of chemical control agents has led to unintended consequences for agricultural quality, environmental devastation, and human health. Chemical agents are not naturally broken down by microbes and can be found in the soil and environment long after natural decomposition has occurred. As an alternative to chemical agents, biocontrol agents are employed to manage phytopathogens. Interest in lactic acid bacteria (LAB) research as another class of potentially useful bacteria against phytopathogens has increased in recent years. Due to the high level of biosafety, they possess and the processes they employ to stimulate plant growth, LAB is increasingly being recognized as a viable option. This paper will review the available information on the antagonistic and plant-promoting capabilities of LAB and its mechanisms of action as well as its limitation as BCA. This review aimed at underlining the benefits and inputs from LAB as potential alternatives to chemical usage in sustaining crop productivity.

Phyllosphere bacterial community dynamics in response to bacterial wildfire disease: succession and interaction patterns

“…Lastly, M4 group shows enrichment of bacterial orders of Clostridiales (LDA =5.53), Lactobacillales (LDA =5.56), and Bacillales (LDA =4.32). These bacteria often considered to be plant-beneficial and antagonistic against phytopathogens ( Ahmed et al., 2022 ; Jaffar et al., 2023 ).…”

“…The existence of these bacteria in the M4 period may represent tobacco’s response mechanism to attract microorganisms during biotic stressors like pathogen invasion and unfavorable climatic conditions ( Chen et al., 2014 ). Similarly, the relative abundances of Clostridiales, Bacillales, Lactobacillales ( Ahmed et al., 2022 ; Jaffar et al., 2023 ), and Sphingobacteriales ( Ikeda et al., 2023 ), which are often considered to be plant-beneficial and antagonistic microbes, showed significant decrease in severally diseased sample (M3) compared to the pre-diseased samples (M1/M2) in the MENs. This might be seen as the plant’s “cry for help” mechanism to lessen the effects of these stresses ( Wang and Song, 2022 ).…”

Nisin-based therapy: a realistic and eco-friendly biocontrol strategy to contrast Xylella fastidiosa subsp. pauca infections in planta

“…In particular, the use of nisin, a natural antimicrobial peptide (AMP) secreted by L. lactis subsp. lactis , to address Xf infections specifically highlights the potential of LAB in sustainable and environmentally friendly control strategies ( Jaffar et al, 2023 ).…”

Characterization of Antimicrobial Peptide Produced by Bacillus Subtilis Subsp. Subtilis

“…The widespread resistance of bacterial pathogens to conventional antibiotics has prompted renewed interest in the use of alternative natural microbial inhibitors such as antimicrobial peptides (Mba and Nweze, 2022). They have been mostly proposed as novel food preservatives (Kamal et al, 2023;Popa et a., 2022) but there is also interest in using them for the control of bacterial diseases in humans and animals (Ahmad et al, 2017) and even as biocontrol agents for plant diseases (Jaffar et al, 2023). Bacillus species produce a large number of peptide antibiotics of at least 25 different basic chemical structures (Kasper et al, 2019) representing a vast source of potentially useful products.…”