-3-Indoleacrylic Acid: A Nematicidal Compound from YMF3.862 as V-ATPase Inhibitor on .

The application of the bionematicides derived from microorganisms and their secondary metabolites represents a promising strategy for managing root-knot nematodes. In this study, a nematicidal compound, -3-indoleacrylic acid, was isolated from YMF3.862.

AfSwi6 Regulates the Stress Response, Chlamydospore Production, and Pathogenicity in the Nematode-Trapping Fungus .

Nematode-trapping (NT) fungi are a major resource for controlling parasitic nematodes. , as a typical NT fungus, can capture nematodes by producing three-dimensional nets. The APSES transcription factor plays a vital role in fungal growth and the pathogenicity of pathogens.

Diversity of species associated with the black rot disease of , including four new species.

Introduction: species establish symbiotic relationships with plants through both parasitic and mutualistic mechanisms. While some species act as plant pathogenic fungi, others utilize various strategies to protect and enhance plant growth.

Methods: Phylogenetic positions of new species of were determined through multi-gene analysis relying on the internal transcribed spacer (ITS) regions of the ribosomal DNA, the translation elongation factor 1-α (α) gene, and the RNA polymerase II () gene.

Exploring the nematicidal mechanisms and control efficiencies of oxalic acid producing WF01 against root-knot nematodes.

Background And Aims: Root-knot nematodes (RKN; spp.) are among the highly prevalent and significantly detrimental pathogens that cause severe economic and yield losses in crops. Currently, control of RKN primarily relies on the application of chemical nematicides but it has environmental and public health concerns, which open new doors for alternative methods in the form of biological control.

High-throughput method for screening pendimethalin-degrading bacteria from one microbial bank.

The extensive use of chemical pesticides, such as herbicides, has resulted in significant environmental pollution. Microbial degradation represents a crucial approach for managing this pesticide-associated pollution, with enrichment culturing serving as a method for isolating pesticide-degrading microorganisms. However, the efficiency of this strategy is limited, often yielding only a few isolated strains.

Root-knot nematode infections and soil characteristics significantly affected microbial community composition and assembly of tobacco soil microbiota: a large-scale comparison in tobacco-growing areas.

Introduction: Tobacco root-knot nematode (RKN) is a highly destructive soil-borne disease worldwide. However, there is a lack of research on the relationship between RKN and tobacco root microbial community composition under large-scale geographical conditions in China.

Methods: In this study, we collected 65 samples from 28 main tobacco-growing areas across 10 provinces in China and conducted 16S rDNA sequencing to investigate the dynamic microbial changes in tobacco soil infected by RKN compared to healthy tobacco soil.

Eco-friendly management of Meloidogyne incognita in cadmium-contaminated soil by using nematophagous fungus Purpureocillium lavendulum YMF1.683: Efficacy and mechanism.

Root-knot nematodes (RKNs) are distributed globally, including in agricultural fields contaminated by heavy metals (HM), and can cause serious crop damages. Having a method that could control RKNs in HM-contaminated soil while limit HM accumulation in crops could provide significant benefits to both farmers and consumers. In this study, we showed that the nematophagous fungus Purpureocillium lavendulum YMF1.

2-Furoic acid associated with the infection of nematodes by and its biocontrol potential on plant root-knot nematodes.

is a typical nematode-trapping fungus that has garnered the attention of many scholars for its highly effective lethal potential for nematodes. Secondary metabolites play an important role in -nematode interactions, but which metabolites perform which function remains unclear. We report the metabolic functions based on high-quality, chromosome-level genome assembly of wild YMF1.

Two new species (Hypocreales, Hypocreaceae) isolated from decaying tubers of .

Species of are widely distributed around the world. In this study, two new species in , named as and , were introduced and illustrated. These species were isolated from diseased tubers of in China and identified based on morphological characteristics and multi-gene sequence analyses of three loci that is the internal transcribed spacer regions of the ribosomal DNA (ITS), the translation elongation factor 1-α encoding gene () and the gene encoding the second largest nuclear RNA polymerase subunit ().

New Species of within Aquatic Plants from Southwestern China.

Members of have a wide geographical distribution throughout different ecosystems, and most species are associated with fruit, leaf, stem and root diseases of land plants. However, species that occur in aquatic plants are not clearly known. During a survey of the diversity of endophytes in aquatic plants in Yunnan, Sichuan, and Guizhou provinces, we obtained 51 isolates belonging to based on internal transcribed spacer region (ITS) sequences.

Volatile Metabolites from and Nematicidal Esters Inhibit .

is broadly distributed in terrestrial and aquatic environments and has various biological activities. In this study, we found that exhibited nematicidal activity against the plant root-knot nematode, . A total of 42 volatile organic compounds (VOCs) from were identified using gas chromatography-mass spectrometry (GC-MS).

Vermicomposting of spent mushroom substrates and the possible mechanisms of vermicompost suppressing nematode disease caused by .

The mushroom industry produces a large amount of spent mushroom substrate (SMS), which requires a large geographical footprint and causes pollution. Vermicomposting is a low-cost technology for its value in recycling of organic wastes and production of beneficial organic fertilizers. In this study, the changes of physicochemical properties was characterized during vermicomposting of SMS with cow dung (CD) as amendment.

Characterization of the complete mitochondrial genome of the nematode-trapping fungus .

The complete mitochondrial genome of was characterized in this study. This mitogenome is a closed circular molecule of 246860 bp in length with a GC content of 26.16%, including 87 predicted protein-coding genes, 29 transfer RNA genes, and two rRNA gens.

Microbiota and functional analyses of nitrogen-fixing bacteria in root-knot nematode parasitism of plants.

Background: Root-knot nematodes (RKN) are among the most important root-damaging plant-parasitic nematodes, causing severe crop losses worldwide. The plant rhizosphere and root endosphere contain rich and diverse bacterial communities. However, little is known about how RKN and root bacteria interact to impact parasitism and plant health.

First Report of Meloidogyne arenaria Infecting Maize in Guizhou Province of China.

Maize (Zea mays L.) as the most important crops is globally cultivated for food, feedstuff and industrial raw materials. During August to September 2021, we carried out a survey on the soil-borne diseases of tobacco in Guizhou Province.

AWA and ASH Homologous Sensing Genes of Contribute to the Tomato Infection Process.

The AWA neurons of mainly perceive volatile attractive odors, while the ASH neurons perceive pH, penetration, nociception, odor tropism, etc. The perceptual neurons of have been little studied. The number of infestations around and within tomato roots was significantly reduced after RNA interference for high-homology genes in AWA and ASH neurons compared between and Through in situ hybridization, we further determined the expression and localization of the homologous genes and in .

B16 Enhanced the Rhizosphere Colonization of ZK7 and Controlled the Efficacy of the Root-Knot Nematode .

is widely applied in many countries as a biocontrol fungus against parasitic nematodes in plants. In a field experiment, the combined use of B16 increased the biocontrol efficiency of ZK7 against . Further study indicated that the colonization of ZK7 in the rhizosphere soil and the roots of tomatoes was significantly higher in the combined use group than in the control group.

Survival and infectivity of second-stage root-knot nematode Meloidogyne incognita juveniles depend on lysosome-mediated lipolysis.

Adaptation to nutrient deprivation depends on the activation of metabolic programs to use reserves of energy. When outside a host plant, second-stage juveniles (J2) of the root-knot nematode (Meloidogyne spp.), an important group of pests responsible for severe losses in the production of crops (e.

Fungistatic Mechanism of Ammonia against Nematode-Trapping Fungus Arthrobotrys oligospora, and Strategy for This Fungus To Survive Ammonia.

Soil fungistasis is a phenomenon in which the germination and growth of fungal propagules is widely inhibited in soils. Although fungistatic compounds are known to play important roles in the formation of soil fungistasis, how such compounds act on soil fungi is little studied. In this study, it was found that ammonia (NH) induced global protein misfolding marked by increased ubiquitination levels of proteins (ubiquitylome data and Western blot verification).

sp. nov., a novel bacterium isolated from wormcast of .

A novel Gram-stain-negative, rod-shaped, non-motile, yellowish bacterium, designated strain 1.3611, was isolated from the wormcast of . The strain grew optimally at 30-37 ℃, at pH 7.

Methylglyoxal Has Different Impacts on the Fungistatic Roles of Ammonia and Benzaldehyde, and Lactoylglutathione Lyase Is Necessary for the Resistance of to Soil Fungistasis.

Biocontrol of root-knot nematode has attracted increasing attention over the past two decades. The inconsistent field performance of biocontrol agents, which is caused by soil fungistasis, often restricts their commercial application. There is still a lack of research on the genes involved in biocontrol fungi response to soil fungistasis, which is important for optimizing practical applications of biocontrol fungi.

sp. nov., isolated from a cave stalactite surface.

An aerobic, rod-shaped, Gram-stain-positive, actinobacterial strain, designated 1.0914, was isolated from a stalactite sample collected from a cave located in Guizhou Province, southwest PR China. Based on 16S rRNA gene sequence analysis, strain 1.

Comparative Transcriptomics Reveals Features and Possible Mechanisms of Glucose-Mediated Soil Fungistasis Relief in .

Soil-borne pest diseases result in large annual agricultural losses globally. Fungal bio-control agents are an alternative means of controlling pest diseases; however, soil fungistasis limits the effect of fungal agents. Nutrients can relieve soil fungistasis, but the mechanisms behind this process remain poorly understood.

sp. nov., a novel bacterium isolated from wormcast.

A Gram-stain-negative, yellow-green bacterium, designated 1.1416, was isolated from wormcast of . The strain was non-motile, rod-shaped, and grew optimally on NA medium at 30 °C, pH 7.