Duddingtonia flagrans preying a plant parasitic nematode

Monteiro, Thalita Suelen Avelar; Balbino, Huarlen Marcio; Mello, Ingrid Ney Kramer de; Coutinho, R. R.; Araújo, Jackson Víctor de; Freitas, Leandro Grassi de

doi:10.1590/1519-6984.209748

Cited by 7 publications

(4 citation statements)

References 4 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…VOC metabolites seem to have a synergistic effect regarding the pathogenic process of NTF D. flagrans against M. incognita. It has been shown that D. flagrans could reduce juveniles of M. javanica in soil [13]. These results indicate that D. flagrans has the potential to biocontrol plant root-knot nematodes.…”

Section: Discussionmentioning

confidence: 77%

“…[12]. Subsequently, Monteiro et al proved that D. flagrans reduced 72.7% of juveniles of Meloidogyne javanica at a concentration of 8201 chlamydospores per gram of soil [13], which illustrates the ability to control plant parasitic nematodes of the species. Hence, D. flagrans has the potential to be developed as a biological control agent against plant parasitic nematodes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pathogenicity and Volatile Nematicidal Metabolites from Duddingtonia flagrans against Meloidogyne incognita

Mei

Wang

2021

Microorganisms

View full text Add to dashboard Cite

Plant parasitic nematodes, especially parasitic root-knot nematodes, are one of the most destructive plant pathogens worldwide. The control of plant root-knot nematodes is extremely challenging. Duddingtonia flagrans is a type of nematode-trapping fungi (NTF), which produces three-dimensional adhesive networks to trap nematodes. In this study, the pathogenicity and volatile organic compounds (VOCs) of the NTF D. flagrans against the plant root-knot nematode, Meloidogyne incognita, were investigated. The predatory process of D. flagrans trapping M. incognita was observed using scanning electron microscopy. Gas chromatography-mass spectrometry analysis of the VOCs from D. flagrans led to the identification of 52 metabolites, of which 11 main compounds were tested individually for their activity against M. incognita. Three compounds, cyclohexanamine, cyclohexanone, and cyclohexanol, were toxic to M. incognita. Furthermore, these three VOCs inhibited egg hatching of M. incognita. Cyclohexanamine showed the highest nematicidal activity, which can cause 97.93% mortality of M. incognita at 8.71 µM within 12 h. The number of hatched juveniles per egg mass after 3 days was just 8.44 when treated with 26.14 µM cyclohexanamine. This study is the first to demonstrate the nematicidal activity of VOCs produced by D. flagrans against M. incognita, which indicates that D. flagrans has the potential to biocontrol plant root-knot nematodes.

show abstract

Section: Discussionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Pathogenicity and Volatile Nematicidal Metabolites from Duddingtonia flagrans against Meloidogyne incognita

Mei

Wang

2021

Microorganisms

View full text Add to dashboard Cite

show abstract

“…This fungus was reported as a new predatory species of Trichotecium that was seen as quite aggressive, capturing and killing nematodes. D. flagrans can produce three-dimensional adhesive nets, and it produces obovoidal to ellipsoidal conidia clusters regularly from groups of three to five from short, simple, and erect conidiophores with abundant chlamydospores [194,195]. Few records about the activity of this species against nematodes of importance for the agricultural industry have been published thus far [196,197].…”

Section: Species Duddingtonia Flagransmentioning

confidence: 99%

Soil-Borne Nematodes: Impact in Agriculture and Livestock and Sustainable Strategies of Prevention and Control with Special Reference to the Use of Nematode Natural Enemies

Gives

2022

Pathogens

View full text Add to dashboard Cite

Soil-borne parasitic nematodes cause severe deterioration in the health of crops and supply animals, leading to enormous economic losses in the agriculture and livestock industry worldwide. The traditional strategy to control these parasites has been based on chemically synthesised compounds with parasiticidal activity, e.g., pesticides and anthelmintic drugs, which have shown a negative impact on the environment. These compounds affect the soil’s beneficial microbiota and can also remain as toxic residues in agricultural crops, e.g., fruits and legumes, and in the case of animal products for human consumption, toxic residues can remain in milk, meat, and sub-products derived from the livestock industry. Other alternatives of control with much less negative environmental impact have been studied, and new strategies of control based on the use of natural nematode enemies have been proposed from a sustainable perspective. In this review, a general view of the problem caused by parasitic nematodes affecting the agriculture and livestock industry, traditional methods of control, and new strategies of control based on eco-friendly alternatives are briefly described, with a special focus on a group of natural nematode antagonists that have been recently explored with promising results against plagues of importance for agricultural and livestock production systems.

show abstract

“…Co‐cultivation resulted in increased uptake of nutrients by the plants (Monteiro et al, 2018). The addition of 8200 A. flagrans chlamydospores per gram of soil reduced the number of Meloidogyne javanica juveniles by 73% (Monteiro et al, 2020) These observations provide a basis for the control of plant‐parasitic nematodes by NTF.…”

Section: Introductionmentioning

confidence: 99%

Establishment of Arthrobotrys flagrans as biocontrol agent against the root pathogenic nematode Xiphinema index

Wernet¹,

Fischer²

2022

Environmental Microbiology

View full text Add to dashboard Cite

Plant-parasitic nematodes cause devastating agricultural damage worldwide. Only a few synthetic nematicides can be used and their application is limited in fields. Therefore, there is a need for sustainable and environmentfriendly alternatives. Nematode-trapping fungi (NTF) are natural predators of nematodes. They capture and digest them with their hyphae and are starting to being used as bio-control agents. In this study, we applied the NTF Arthrobotrys flagrans (Duddingtonia flagrans) against the wine pathogenic nematode Xiphinema index. A. flagrans reduced the number of X. index juveniles in pot cultures of Ficus carica, an alternative host plant for X. index, significantly. Sodium-alginate pellets with A. flagrans spores were produced for vineyard soil inoculation under laboratory conditions. The NTF A. conoides, A. musiformis and A. superba were enriched from several soil samples, showing their natural presence. Trap formation is an energyconsuming process and depends upon various biotic and abiotic stimuli. Here, we show that bacteria of the genus Delftia, Bacillus, Pseudomonas, Enterobacter and Serratia induced trap formation in NTF like A. conoides and A. oligospora but not in A. flagrans in the absence of nematodes. The application of NTF along with such bacteria could be a combinatorial way of efficient biocontrol in nematode-infested soil.

show abstract

Duddingtonia flagrans preying a plant parasitic nematode

Cited by 7 publications

References 4 publications

Pathogenicity and Volatile Nematicidal Metabolites from Duddingtonia flagrans against Meloidogyne incognita

Pathogenicity and Volatile Nematicidal Metabolites from Duddingtonia flagrans against Meloidogyne incognita

Soil-Borne Nematodes: Impact in Agriculture and Livestock and Sustainable Strategies of Prevention and Control with Special Reference to the Use of Nematode Natural Enemies

Establishment of Arthrobotrys flagrans as biocontrol agent against the root pathogenic nematode Xiphinema index

Contact Info

Product

Resources

About