Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

Ferraz, Carolina Magri; Soares, Filippe Elias de Freitas; Senna, Caio Colodette; Silva, L. P. C.; Araújo, Jackson Víctor de; Moreira, Tiago Facury; Monteiro, Fl?vio Cunha; Braga, Fábio Ribeiro

doi:10.1590/1519-6984.231550

Cited by 3 publications

(1 citation statement)

References 9 publications

(15 reference statements)

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“…P. chlamydosporia has already been used to manage nematodes in food security crops such as tomato (Escudero et al, 2017), potato (Varandas et al, 2020), soybean (Messa et al, 2020), cucumber (Swarnakumari et al, 2020), rice (Khan et al, 2021), banana (Silva et al, 2017) and root beet (Haj Nuaima et al, 2021). P. chlamydosporia has also been used for biocontrol of animal parasitic nematodes (Li et al, 2022) and can also infect insects in the laboratory, such as hemipters (Ferraz et al, 2021).…”

Section: Conocybe Lacteal Coprinus Comatus Stropharia Rugosoannulatamentioning

confidence: 99%

Chitosan and nematophagous fungi for sustainable management of nematode pests

Lopez-Nuñez

Suarez-Fernandez²,

López-Moya³

et al. 2022

Front. Fungal Biol.

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Plants are exposed to large number of threats caused by herbivores and pathogens which cause important losses on crops. Plant pathogens such as nematodes can cause severe damage and losses in food security crops worldwide. Chemical pesticides were extendedly used for nematode management. However, due to their adverse effects on human health and the environment, they are now facing strong limitations by regulatory organisations such as EFSA (European Food Safety Authority). Therefore, there is an urgent need for alternative and efficient control measures, such as biological control agents or bio-based plant protection compounds. In this scenario, chitosan, a non-toxic polymer obtained from seafood waste mainly, is becoming increasingly important. Chitosan is the N-deacetylated form of chitin. Chitosan is effective in the control of plant pests and diseases. It also induces plants defence mechanisms. Chitosan is also compatible with some biocontrol microorganisms mainly entomopathogenic and nematophagous fungi. Some of them are antagonists of nematode pests of plants and animals. The nematophagous biocontrol fungus Pochonia chlamydosporia has been widely studied for sustainable management of nematodes affecting economically important crops and for its capability to grow with chitosan as only nutrient source. This fungus infects nematode eggs using hyphal tips and appressoria. Pochonia chlamydosporia also colonizes plant roots endophytically, stimulating plant defences by induction of salicylic and jasmonic acid biosynthesis and favours plant growth and development. Therefore, the combined use of chitosan and nematophagous fungi could be a novel strategy for the biological control of nematodes and other root pathogens of food security crops.

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Section: Conocybe Lacteal Coprinus Comatus Stropharia Rugosoannulatamentioning

confidence: 99%

Chitosan and nematophagous fungi for sustainable management of nematode pests

Lopez-Nuñez

Suarez-Fernandez²,

López-Moya³

et al. 2022

Front. Fungal Biol.

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Biological control 2.0: Use of nematophagous fungi enzymes for nematode control

Soares

Ferreira

Gênier

et al. 2023

Journal of Natural Pesticide Research

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Entomopathogenic Fungi Biodiversity in the Soil of Three Provinces Located in Southwest China and First Approach to Evaluate Their Biocontrol Potential

Chen

Xie

Cai

et al. 2021

JoF

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Entomopathogenic fungi (EF), who represent active agents to control insect natural populations, usually persist in terrestrial habitats. Southwest area in China has various climate conditions and abundant plant biodiversity (crop, forest, grassy, orchard and arable areas). Nevertheless, the potential of soil-inhabitant EF as insect pest biocontrol agents, is unknown. In this study, first the EF biodiversity from soil of three provinces (Guizhou, Sichuan, and Yunnan) was surveyed. Then, the virulence of 29 isolated strains against Bemesia tabaci and Spodoptera litura was assessed. After analyzing 212 soil samples, 497 isolated fungi were identified. Out of them, 490 isolates were classified in 45 species of 24 genera, whereas the other seven isolates, belonging to Paecilomyces and Purpureocillium genera, were not identified under species level. Furthermore, the EF biodiversity from soil of Sichuan, Yunan, and Guizhou areas, analyzed by Shannon Wiener Index (SWI) was rated at 2.98, 1.89, and 2.14, while SWIs-biodiversity in crop, forest, grassy, orchard and arable areas was rated at 2.88, 2.74, 3.05, 2.39, and 2.47. SWI data suggested that soil from Sichuan area and grassy had higher EF biodiversity compared with other analyzed provinces and areas. Virulence bioassay results indicated that, out of the 29 isolates tested, 24 were pathogenic against B. tabaci and S. litura, resulting in mortality rates >10%. In conclusion, this study reports the EF distribution and biodiversity in soil from three provinces located at Southwest China, whereas their potential use as a tool for the B. tabaci and S. litura biocontrol must be further investigated.

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Interaction of the nematophagous fungus Pochonia chlamydosporia on eggs of Spartocera dentiventris (Berg) (Hemiptera: Coreidae) under laboratory conditions

Cited by 3 publications

References 9 publications

Chitosan and nematophagous fungi for sustainable management of nematode pests

Chitosan and nematophagous fungi for sustainable management of nematode pests

Biological control 2.0: Use of nematophagous fungi enzymes for nematode control

Entomopathogenic Fungi Biodiversity in the Soil of Three Provinces Located in Southwest China and First Approach to Evaluate Their Biocontrol Potential

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