ArticleBMC plant biology2025
Mechanisms underlying the biocontrol activity of Serratia marcescens YNAU-SM-1 against Phytophthora infestans in potato.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Structure guided development of phenoxyethanol based N-aryloxyethyl heterocycles for the control of Phytophthora infestans.Pest management science · 2026Article
- Phyllosphere microbiome responses to spray-induced gene silencing targeting Phytophthora infestans in potato.NPJ biofilms and microbiomes · 2026Article
- Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
The use of beneficial microorganisms offers a sustainable alternative to chemical fungicides for managing plant diseases. This study aimed to investigate the biocontrol potential and underlying mechanisms of Serratia marcescens (YNAU-SM-1) for controlling potato late blight caused by Phytophthora infestans. Dual culture assay, fluorescent dye staining, spore germination inhibition assays, in vitro bioassays, greenhouse experiments, and biochemical analyses of defense-related enzymes and osmotic regulators were conducted to determine the effects of YNAU-SM-1 using P. infestans HJG02 as a target pathogen. Dual culture assays revealed that YNAU-SM-1 significantly inhibited the mycelial growth of P. infestans HJG02 by 70.26%. Abnormal hyphal expansion and excessive branching were also observed under microscopic observations. Fluorescent dye staining revealed that YNAU-SM-1 induced intracellular accumulation of reactive oxygen species (ROS) in P. infestans HJG02, leading to sporangial inactivation. Spore germination inhibition assays suggested the bacterial strain strongly inhibited sporangial direct germination (98.86%), zoospore release (70.13%), and cystospore germination (100%). Detached leaf, tuber slice, and greenhouse assays confirmed the efficacy of YNAU-SM-1, with disease control efficiencies of 67.62%, 65.48%, and 71.04% under preventive, simultaneous, and curative treatments, respectively. Biochemical analyses indicated that YNAU-SM-1 increased soluble protein and reduced malondialdehyde (MDA) content, and altered the general trend of peroxidase (POD), and soluble sugar content in potato leaves. These findings suggest that YNAU-SM-1 suppresses P. infestans HJG02 through both direct antagonism and the induction of host defenses, highlighting its potential as an effective biocontrol agent for managing potato late blight.
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Registered trials
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