Predacious activity of Arthrobotrys spp isolates on infective Cooperia punctata larvae

Araújo, Jackson Víctor de

doi:10.1590/s1413-95961998000100001

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…The percentage of nematodes captured by each fungus increased linearly with time, demonstrating good trapping ability of both fungi on S. bradys. The capacity of these nematophagous fungi to capture nematodes is well known (Araújo, 1998;Gomes et al, 2001;Bordallo et al, 2002;Nordbring-Hertz et al, 2002;Kano et al, 2004). However, the type of nematode-trapping structures formed depends on the species or even the strains of species, and on both biotic and abiotic environmental conditions.…”

Section: Resultsmentioning

confidence: 99%

“…Nematophagous fungi, from all major taxonomic groups of fungi, have been widely studied around the world in several crops for the control of plant parasitic nematodes (Araújo, 1998;Ribeiro et al, 1999;Maia et al, 2001;Bordallo et al, 2002;Nordbring-Hertz et al, 2002). These fungi form sophisticated hyphal structures, such as three-dimensional adhesive nets, knobs, branches or rings, in which the nematodes are captured by adhesion or mechanically, and are used by the fungi as a nutrient source (Nordbring-Hertz et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

Soares¹,

Sousa²,

Coimbra

et al. 2006

Sci. agric. (Piracicaba, Braz.)

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Scutellonema bradys (Steiner & LeHew) Andrassy is the most important yam nematode in the State of Bahia, Brazil, being responsible for the decay of yam tubers, known as dry rot disease. Nematodetrapping fungi are potential biocontrol agents against plant parasitic nematodes. The in vitro predatory ability of Arthrobotrys musiformis Drechsler and Monacrosporium thaumasium Drechsler on S. bradys was evaluated. The fungi were grown in PDA medium, than transferred to the center of Petri dishes with 2% agar plus water. After 14 days of the fungal cultures incubation, 150 nematodes were added to the dishes. For a period of 5 days, at 24-hour intervals, the number of captured nematodes was counted. Both fungi formed trapping structures of single ring and three-dimensional adhesive network types, 24 hours after the addition of the nematodes to the fungal cultures.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

Soares¹,

Sousa²,

Coimbra

et al. 2006

Sci. agric. (Piracicaba, Braz.)

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show abstract

“…Their potential use in the control of phytonematodes in different economically important crops has also been demonstrated with successful results [174][175][176]. The predatory activity of nematophagous fungi, both in vitro and in vivo, against animal parasitic nematodes has been widely documented [177][178][179]; some of the most studied nematophagous fungi in the control of plant and animal parasitic nematodes are species from the genera Arthrobotrys, Duddingtonia, Purpureocillium and Pochonia chlamydosporia. Some of the main characteristics of these fungi are briefly described.…”

Section: Nematode-trapping Fungimentioning

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

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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.

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RNA-Seq reveals the molecular mechanism of trapping and killing of root-knot nematodes by nematode-trapping fungi

Pandit

Patel

et al. 2017

World J Microbiol Biotechnol

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Nematode-trapping fungi are well known for their inherent potential to trap and kill nematodes using specialized trapping devices. However, the molecular mechanisms underlying the trapping and subsequent processes are still unclear. Therefore, in this study, we examined differential genes expression in two nematode-trapping fungi after baiting with nematode extracts. In Arthrobotrys conoides, 809 transcripts associated with diverse functions such as signal transduction, morphogenesis, stress response and peroxisomal proteins, proteases, chitinases and genes involved in the host-pathogen interaction showed differential expression with fold change (>±1.5 fold) in the presence of nematode extract with FDR (p-value < 0.001). G-proteins and mitogen activated protein kinases are considered crucial for signal transduction mechanism. Results of qRT-PCR of 20 genes further validated the sequencing data. Further, variations in gene expression among Duddingtonia flagrans and A. conoides showed septicity of nematode-trapping fungi for its host. The findings illustrate the molecular mechanism of fungal parasitism in A. conoides which may be helpful in developing a potential biocontrol agent against parasitic nematodes.

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Predacious activity of Arthrobotrys spp isolates on infective Cooperia punctata larvae

Abstract: 0.05) was found between the isolate E and the control. This indicates that there can be an existing variability within a fungus species or genus concerning the predation of infective C. punctata larvae.]]>

Cited by 3 publications

References 3 publications

Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

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

RNA-Seq reveals the molecular mechanism of trapping and killing of root-knot nematodes by nematode-trapping fungi

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