Biocontrol potential of volatile organic compounds produced by Streptomyces corchorusii CG-G2 to strawberry anthracnose caused by Colletotrichum gloeosporioides

Li, Xiaojuan; Zhang, Lu; Zhao, Yankun; Feng, Junting; Chen, Yufeng; Li, Kai; Zhang, Miaoyi; Qi, Dengfeng; Zhou, Dengbo; Wei, Yongzan; Wang, Wei; Xie, Jianghui

doi:10.1016/j.foodchem.2023.137938

Cited by 13 publications

(4 citation statements)

References 36 publications

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“…Effectively preventing and controlling anthracnose has become an important task. Currently, anthracnose prevention and control methods include using resistant varieties [ 19 , 20 ] and chemical agents [ 21 , 22 ] and identifying and screening biocontrol microorganisms [ 23 , 24 ]. Most of the above techniques target one or several types of anthrax bacteria.…”

Section: Introductionmentioning

confidence: 99%

Identification and Genetic Diversity Analysis of the Pathogen of Anthracnose of Pepper in Guizhou

Zhang,

Li,

Xie

et al. 2024

Plants

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Anthracnose of pepper is a significant disease caused by Colletotrichum spp. In 2017 and 2021, 296 isolates were obtained from 69 disease samples. Through morphological analysis, pathogenicity detection, and polygenic phylogenetic analysis, the above strains were attributed to 10 species: C. scovillei, C. fructicola, C. karstii, C. truncatum, C. gloeosporioides, C. kahawae, C. boninense, C. nymphaeae, C. plurivorum, and C. nigrum. C. scovillei had the most strains (150), accounting for 51.02% of the total isolates; C. fructicola came in second (72 isolates), accounting for 24.49%. Regarding regional distribution, Zunyi City has the highest concentration of strains—92 strains total, or 34.18%—across seven species. Notably, this investigation showed that C. nymphaeae infected pepper fruit for the first time in China. Genetic diversity analysis showed that C. fructicola could be divided into seven haplotypes, and the population in each region had apparent genetic differentiation. However, the genetic distance between each population was not significantly related to geographical distance. Neutral detection and nucleotide mismatch analysis showed that C. fructicola might have undergone population expansion.

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Section: Introductionmentioning

confidence: 99%

Identification and Genetic Diversity Analysis of the Pathogen of Anthracnose of Pepper in Guizhou

Zhang,

Li,

Xie

et al. 2024

Plants

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“…Actinomycetes, particularly Streptomyces, which have a great potential for producing large amounts of bioactive secondary metabolites, , showed strong bioactivity in biocontrol practice, − indicating the great potential of biological control. However, to the best of our knowledge, biocontrol antagonists with broad-spectrum resistance to crop pathogens are rare.…”

Section: Introductionmentioning

confidence: 99%

Critical Secondary Metabolites Confer the Broad-Spectrum Pathogenic Fungi Resistance Property of a Marine-Originating Streptomyces sp. HNBCa1

Xiong,

Xia,

et al. 2024

J. Agric. Food Chem.

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Obtaining a microorganism strain with a broad-spectrum resistance property and highly efficient antifungal activity is important to the biocontrol strategy. Herein, a marine Streptomyces sp. HNBCa1 demonstrated a broad-spectrum resistance to 17 tested crop pathogenic fungi and exhibited a high biocontrol efficiency against mango anthracnose and banana fusarium wilt. To uncover the critical bioactive secondary metabolites basis, genome assembly and annotation, metabolomic analysis, and a semipreparative HPLC-based activity-guide method were employed. Finally, geldanamycin and ectoine involved in codifferential secondary metabolites were also found to be related to biosynthetic gene clusters in the genome of HNBCa1. Reblastatin and geldanamycin were uncovered in response to broad-spectrum resistance to the 17 crop pathogenic fungi. Our results suggested that reblastatin and geldanamycin were critical to maintaining the broad-spectrum resistance property and highly efficient antifungal activity of HNBCa1, which could be further developed as a biological control agent to control crop fungal diseases.

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“…2 Recently, there has been increasing interest in identifying alternative and sustainable approaches for managing plant diseases, with an aim to reduce the reliance on synthetic chemical pesticides. 3 One promising approach is the utilization of beneficial plant-associated microorganisms, which collectively form the plant microbiota, whereby they live as endophytes within plants or as epiphytes on the surface of plant organs. 4 Furthermore, these advantageous microorganisms can also be used as biological control agents (BCAs), biostimulants, and fertilizers in agriculture; 5 they serve as a source of microbes for the assembly of artificial (synthetic) consortia aimed at restoring the structure and functionality of impaired plant microbiota.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, there has been increasing interest in identifying alternative and sustainable approaches for managing plant diseases, with an aim to reduce the reliance on synthetic chemical pesticides . One promising approach is the utilization of beneficial plant-associated microorganisms, which collectively form the plant microbiota, whereby they live as endophytes within plants or as epiphytes on the surface of plant organs .…”

Section: Introductionmentioning

confidence: 99%

Antifungal Activity and Mechanisms of 2-Ethylhexanol, a Volatile Organic Compound Produced by Stenotrophomonas sp. NAU1697, against Fusarium oxysporum f. sp. cucumerinum

Zhang,

Li,

Wei

et al. 2024

J. Agric. Food Chem.

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Researchers often consider microorganisms from Stenotrophomonas sp. to be beneficial for plants. In this study, the biocidal effects and action mechanisms of volatile organic compounds (VOCs) produced by Stenotrophomonas sp. NAU1697 were investigated. The mycelial growth and spore germination of Fusarium oxysporum f. sp. cucumerinum (FOC), which is a pathogen responsible for cucumber wilt disease, were significantly inhibited by VOCs emitted from NAU1697. Among the VOCs, 33 were identified, 11 of which were investigated for their antifungal properties. Among the tested compounds, 2-ethylhexanol exhibited the highest antifungal activity toward FOC, with a minimum inhibitory volume (MIV) of 3.0 μL/plate (equal to 35.7 mg/L). Damage to the hyphal cell wall and cell membrane integrity caused a decrease in the ergosterol content and a burst of reactive oxygen species (ROS) after 2-ethylhexanol treatment. DNA damage, which is indicative of apoptosis-like cell death, was monitored in 2ethylhexanol-treated FOC cells by using micro-FTIR analysis. Furthermore, the activities of mitochondrial dehydrogenases and mitochondrial respiratory chain complex III in 2-ethylhexanol-treated FOC cells were significantly decreased. The transcription levels of genes associated with redox reactions and the cell wall integrity (CWI) pathway were significantly upregulated, thus indicating that stress was caused by 2-ethylhexanol. The findings of this research provide a new avenue for the sustainable management of soil-borne plant fungal diseases.

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Biocontrol potential of volatile organic compounds produced by Streptomyces corchorusii CG-G2 to strawberry anthracnose caused by Colletotrichum gloeosporioides

Cited by 13 publications

References 36 publications

Identification and Genetic Diversity Analysis of the Pathogen of Anthracnose of Pepper in Guizhou

Identification and Genetic Diversity Analysis of the Pathogen of Anthracnose of Pepper in Guizhou

Critical Secondary Metabolites Confer the Broad-Spectrum Pathogenic Fungi Resistance Property of a Marine-Originating Streptomyces sp. HNBCa1

Antifungal Activity and Mechanisms of 2-Ethylhexanol, a Volatile Organic Compound Produced by Stenotrophomonas sp. NAU1697, against Fusarium oxysporum f. sp. cucumerinum

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