A Novel Endophytic Fungus Fusarium falciforme R-423 for the Control of Rhizoctonia solani Root Rot in Pigeon Pea as Reflected by the Alleviation of Reactive Oxygen Species-Mediated Host Defense Responses

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: 73(6), P. 3373 - 3388

Published: Jan. 30, 2025

Rhizoctonia solani root rot is a devastating fungal disease that causes significant yield losses in legume crops. A novel endophytic fungus Fusarium falciforme R-423 isolated from pigeon pea had antagonistic capacity against R. solani. F. extracts could inhibit growth and cause it to die. Four host-specific 15 genus-specific metabolites were identified as potential antimicrobial compounds. R-423's inoculation effectively controlled seedlings promoted growth. Co-inoculation of reduced the levels oxidative stress, pathogenesis- biosynthesis-related gene expression, phenolic compound accumulation roots compared those infected with solani, confirming reactive oxygen species-mediated host defense responses alleviated due effective control by R-423. Overall, was promising biocontrol agent

Language: Английский

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Deciphering core microbiota in rhizosphere soil and roots of healthy and Rhizoctonia solani-infected potato plants from various locations

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 22, 2024

Black scurf caused by Rhizoctonia solani severely affects potato production. Through amplification of V3-V4 and ITS1-5f variable regions 16S internal transcribed spacer (ITS) rRNA, the study was based on location (Kunming, Qujing, Zhaotong), plant components (rhizosphere soil roots), sample types (healthy diseased) to assess diversity bacterial fungal communities. We found significantly influence microbial diversity, with rhizosphere being more diverse than roots, community in root is mainly derived from soil. Moreover, roots healthy plants exhibit greater compared those infected . Bacterial phyla Actinobacteriota Acidobacteriota were enriched that whereas Proteobacteria Cyanobacteria showed opposite trend. Fungal phylum Ascomycota low relative abundance Basidiomycota genera including Streptomyces , Lysobacter Bacillus Pseudomonas Ensifer Enterobacter Rhizobium group ( Allorhizobium Neorhizobium Pararhizobium ), along such as Aspergillus Penicillium Purpureocillium Gibberella moniliformis have potential ability growth promotion disease resistance. However, most species some are pathogenic could provide a conducive environment for black infection. Interaction within network increased plants, contrasting trend network. Our findings indicate R. alters underscoring complexity interactions between communities promoting health resistance against scurf.

Language: Английский

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Leguminous Seedborne Pathogens: Seed Health and Sustainable Crop Management

Plants, Journal Year: 2023, Volume and Issue: 12(10), P. 2040 - 2040

Published: May 19, 2023

Pulses have gained popularity over the past few decades due to their use as a source of protein in food and favorable impact on soil fertility. Despite being essential modern agriculture, these species face number challenges, such agronomic crop management threats from plant seed pathogens. This review’s goal is gather information distribution, symptomatology, biology, host range seedborne Important diagnostic techniques are also discussed part successful process health certification. Additionally, strategies for sustainable control provided. Altogether, data collected suggested basic criteria set up conscious laboratory approach.

Language: Английский

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Paenibacillus as a Biocontrol Agent for Fungal Phytopathogens: Is P. polymyxa the Only One Worth Attention?

Microbial Ecology, Journal Year: 2024, Volume and Issue: 87(1)

Published: Oct. 31, 2024

Control of fungal phytopathogens is a significant challenge in modern agriculture. The widespread use chemical fungicides to control these pathogens often leads environmental and food contamination. An eco-friendly alternative that can help reduce reliance on chemicals plant growth-promoting bacteria (PGPB), particularly those the genus Paenibacillus, which appear be highly effective. review aims summarize existing knowledge potential Paenibacillus spp. as biocontrol agents, identify gaps, answer whether other species addition polymyxa, also effective agents. combat through various mechanisms, including production lipopeptides (such fusaricidin, paenimyxin, pelgipeptin), induction systemic resistance (ISR), hydrolytic enzymes (chitinase, cellulase, glucanase), volatile organic compounds. These properties enable strains suppress growth fungi such Fusarium oxysporum, F. solani, Rhizoctonia Botrytis cinerea, or Colletotrichum gloeosporioides. Notably, several P. illinoisensis KJA-424, lentimorbus B-30488, elgii JCK1400, have demonstrated efficacy controlling diseases plants. Importantly, many formulations with already been patented, some are commercially available, but most them contain only polymyxa. Nevertheless, considering data presented this review, we believe from (besides polymyxa) will commercialized used protection future. there still limited information regarding their impact native microbiota, metataxonomic metagenomic perspectives. Expanding area could enhance effectiveness agents containing spp., ensuring safe sustainable biological fungicides.

Language: Английский

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Nanoparticles for Control of Soil-Borne Fungal Pathogens

Published: Jan. 1, 2025

Language: Английский

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Synthesis, Characterization, and Evaluation of the Antifungal Properties of 3-Indolyl-3-Hydroxy Oxindole Derivatives Against Plant Pathogenic Fungi

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1079 - 1079

Published: Feb. 26, 2025

To discover novel fungicides with good inhibitory effects on plant fungal diseases, twenty-five 3-indolyl-3-hydroxy oxindole derivatives (3a-3y) were synthesized. These newly characterized by NMR and HRMS. Their antifungal activities against five pathogenic fungi assessed in vitro. Most of the compounds exhibited moderate to excellent fungi. Notably, 3t, 3u, 3v, 3w displayed remarkable broad-spectrum comparable or superior those carvacrol (CA) phenazine-1-carboxylic acid (PCA). Among them, compound 3u most activity Rhizoctonia solani Kühn (R. solani), an EC50 3.44 mg/L, which was CA (7.38 mg/L) PCA (11.62 mg/L). Preliminary structure-activity relationship (SAR) results indicated that introduction I, Cl, Br substituents at position 5 3-hydroxy-2-oxindole indole rings is crucial for exhibit activity. The vivo assay showed has curative R. solani. current suggest these are capable serving as promising lead compounds.

Language: Английский

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Diversity and pathogenicity of anastomosis groups of Rhizoctonia associated with bottom rot of field-grown lettuce in Brazil

European Journal of Plant Pathology, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

Language: Английский

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Rhizoctonia

Published: Jan. 1, 2025

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Seed biopriming with potential bioagents influences physiological processes and plant defense enzymes to ameliorate sheath blight induced yield loss in rice (Oryza sativa L.)

World Journal of Microbiology and Biotechnology, Journal Year: 2023, Volume and Issue: 39(5)

Published: March 28, 2023

Language: Английский

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Extremophilic bacterial strains as plant growth promoters and biocontrol agents against Pythium ultimum and Rhizocotnia solani

Journal of Plant Pathology, Journal Year: 2023, Volume and Issue: 105(4), P. 1347 - 1369

Published: July 28, 2023

Language: Английский

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