Biocontrol potential and genetic diversity of
            <i>Metarhizium anisopliae</i>
            lineage in agricultural habitats

Francis, Juliya R.

doi:10.1111/jam.14328

Cited by 10 publications

(7 citation statements)

References 35 publications

(47 reference statements)

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“…dcjhyium was also evidenced against the subterranean termite Odontotermes formosanus Shiraki, being highly susceptible to the fungus, causing 100 % mortality 3 days after inoculation (Dong et al, 2009). Other studies with M. anisopliae also demonstrated virulence on the termites Odontotermes obesus, Coptotermes curvignathus and C. formosanus (Keppanan et al, 2018;Francis, 2019;Syazwan et al, 2021). The pathogenicity and virulence of the species is explained by enzymatic activities and by the induction of metabolic alterations in the host, as seen for the mite species Psoroptes ovis var.…”

Section: Discussionmentioning

confidence: 86%

NATIVE AMAZONIAN FUNGI TO CONTROL TERMITES Nasutitermes sp. (BLATTODEA: TERMITIDAE)

Fernanda

Gleison²,

Atilon³

et al. 2021

Acta biol. Colomb.

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Termites of the Nasutitermes genus are considered one of the main urban and agroforestry pests in Brazil, where the main method of control is the application of pesticides. The uso of entomopathogenic fungi to reduce the population of this plague in the environment could be use as an alternative. The goal of this study was to evaluate the virulence of isolates native Amazonian fungi belonging to the Tolypocladium endophyticum, Metarhizium anisopliae and Metarhizium marquandii species for the control of Nasutitermes sp. The strains of T. endophyticum (4.439), M. anisopliae (4.443) and M. marquandii (4.472) with their respective isolation codes, were evaluated using suspensions at concentrations of 105, 106, 107 and 108 conidia/mL against the termites. The fungi were characterized to species level by molecular analysis. The greatest virulence was registered with T. endophyticum (4.439), with a mortality of 100 % on the 4th day of treatment for all analyzed concentrations. The M. anisopliae strain (4.443) proved to be efficient, causing a mortality of 100 % on the 7th and 6th days at dilutions of 107 and 108 conidia/mL, respectively. Rates lower than 100 % were registered with M. marquandii (4.472). Therefore, the three fungal strains showed virulence against the termites Nasutitermes sp. In this study, the fungi Tolypocladium endophyticum and Metarhizium marquandii are reported for the first time for the biological control of pests, indicating the potential of native Amazonian fungi for the biological control of thermites Nasutitermes sp.

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Section: Discussionmentioning

confidence: 86%

NATIVE AMAZONIAN FUNGI TO CONTROL TERMITES Nasutitermes sp. (BLATTODEA: TERMITIDAE)

Fernanda

Gleison²,

Atilon³

et al. 2021

Acta biol. Colomb.

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“…The most predominant genera found in these agrosystems were related to Fusarium , Trichoderma, Acrostalagmus , Metarhizium , Daldinia and Chaetomium . According to the literature, these genera are associated with organic matter decomposition and plant protection (Francis, 2019 ; Rubini et al, 2005 ; Soytong et al, 2021 ; Zin & Badaluddin, 2020 ). However, Fusarium species, in agriculture, are also widely associated with plant pathogenicity and can cause serious yield losses (Arie, 2019 ; Blanco & Aveling, 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Microorganism community structure: A characterisation of agrosystems from Madeira Archipelago

Oliveira,

Ragonezi,

Valente

et al. 2024

Environ Microbiol Rep

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Microbial diversity profoundly influences soil ecosystem functions, making it vital to monitor community dynamics to comprehend its structure. Our study focused on six agrosystems in Madeira Archipelago, analysing bacteria, archaea, fungi and AMF through classical microbiology and molecular techniques. Despite distinct edaphoclimatic conditions and management practices, bacterial structures exhibited similarities, with Alphaproteobacteria at 18%–20%, Bacilli at 11%–18% and Clostridia at 9%–14%. The predominance of copiothrophic groups suggested that soil nutrient content was the driver of these communities. Regarding archaea, the communities changed among sites, and it was evident that agrosystems provided niches for methanogens. The Crenarchaeota varied between 15% and 29%, followed by two classes of Euryarchaeota, Methanomicrobia (17%–25%) and Methanococci (4%–32%). Fungal communities showed consistent composition at the class level but had differing diversity indices due to management practices and soil texture. Sordaryomycetes (21%–28%) and Agaricomycetes (15%–23%) were predominant. Conversely, AMF communities appeared to be also influenced by the agrosystem, with Glomus representing over 50% of the community in all agrosystems. These insights into microbial groups' susceptibilities to environmental conditions are crucial for maintaining healthy soil and predicting climate change effects on agrosystems' productivity, resilience and sustainability. Additionally, our findings enable the development of more robust prediction models for agricultural practices.

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“…In response to these problems, molecular analysis is important in species identification efforts. Lately, molecular techniques have been employed in the examination of the fungus Metarhizium, with several studies focused on genetic diversity at a local scale (Iwanicki et al 2019), genetic diversity of isolates in distant locations (Francis 2019), fungal isolates originating from of closely related species (Luan et al 2013), and isolates originating from agricultural areas (Hernández-Domínguez and Guzmán-Franco 2017). This research focuses on the genetic diversity of fungi isolates of the same agricultural land and different host insects.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of Metarhizium sp. isolated from various hosts in East Dumoga, North Sulawesi, Indonesia

SIAHAAN,

MANGAIS,

KOLONDAM

et al. 2024

Biodiversitas

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Abstract. Siahaan P, Mangais RER, Kolondam B, Tangapo A, Mambu S. 2023. Genetic diversity of Metarhizium sp. isolated from various hosts in East Dumoga, North Sulawesi, Indonesia. Biodiversitas 24: 6888-6896. Metarhizium fungus is an entomopathogenic fungus known to kill many insect pests. This means that Metarhizium sp. has an important ecological role in the ecosystem, especially in controlling insect populations and recycling nutrients. Studying the genetic diversity of Metarhizium species and their relationships with insect hosts provides insight into pest management and the study of their taxonomy. The study aimed to investigate the genetic variability among Metarhizium fungi by examining their respective host types, which can be used as basic data for taxonomic studies, germplasm conservation efforts, and pest management. Exploration results showed that three insect species were infected with the Metarhizium sp fungus, namely Scotinophara coarctata, Nilaparvata lugens, and Recilia dorsalis. The results of a phylogenetic analysis has shown that the S. coarctata isolate was in the same group as four comparable Metarhizium anisopliae isolates from GenBank with a similarity level of 100%, while the N. lugens and R. dorsalis isolates were in the same group as four Metarhizium huainamdangense isolates with a similarity level. 99% and three isolates of Metarhizium flavoviride with 98% similarity. Molecular analysis confirmed that the Metarhizium isolated from S. coarctata was the M. anisopliae species, while those isolated from N. lugens and R. dorsalis were the M. huainamdangense species. Differences in host insects have been proven to provide genetic variation to the Metarhizium sp. fungus.

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Biocontrol potential and genetic diversity of Metarhizium anisopliae lineage in agricultural habitats

Cited by 10 publications

References 35 publications

NATIVE AMAZONIAN FUNGI TO CONTROL TERMITES Nasutitermes sp. (BLATTODEA: TERMITIDAE)

NATIVE AMAZONIAN FUNGI TO CONTROL TERMITES Nasutitermes sp. (BLATTODEA: TERMITIDAE)

Microorganism community structure: A characterisation of agrosystems from Madeira Archipelago

Genetic diversity of Metarhizium sp. isolated from various hosts in East Dumoga, North Sulawesi, Indonesia

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