Results 41 to 50 of about 1,246 (154)

Emulsifiable oils protect Metarhizium robertsii and Metarhizium pingshaense conidia from imbibitional damage

open access: yesBiological Control, 2011
AbstractImbibitional damage (ID) may take place when dehydrated cells are immersed in water and, within certain limits, damage to the plasma membrane is inversely proportional to the immersion temperature. Dried Metarhizium anisopliae conidia formulated in pure oil are not severely impacted when rehydrated in a cold agar-based substrate, whereas dried,
Xavier-Santos, Solange   +2 more
openaire   +1 more source

Erratum to: Genetic basis of destruxin production in the entomopathogen Metarhizium robertsii [PDF]

open access: yesCurrent Genetics, 2012
The online version of the original article can be found underdoi:10.1007/s00294-012-0368-4.B. Giuliano Garisto Donzelli (&) S. B. Krasnoff D. M. GibsonBiological Integrated Pest Management Research Unit,Robert W. Holley Center for Agriculture and Health,USDA-ARS, 538 Tower Road, Ithaca, NY 14853, USAe-mail: bdd1@cornell.eduY.-S.
Bruno Giuliano Garisto Donzelli   +4 more
openaire   +1 more source

Medium supplemented with insect pupae powder to induce growth of Beauveria bassiana and Metarhizium robertsii and the pathogenicity of Metarhizium robertsii

open access: yesRevista Colombiana de Entomología, 2023
The use of insect cuticle is a viable option to induce the growth of entomopathogenic fungi. Spodoptera frugiperda (Sf) and Heliothis virescens (Hv). Pupal powder was obtained, which was added to enrich the Potato Dextrose Agar (PDA) culture medium at ...
Adara Graciano-Obeso   +5 more
openaire   +1 more source

Effect of Endophytic Fungi on Thrips tabaci Development and Population Dynamics

open access: yesJournal of Applied Entomology, Volume 150, Issue 8, Page 1102-1114, September 2026.
ABSTRACT Endophytic fungi are promising biocontrol agents because they colonise healthy plant tissues asymptomatically while inducing systemic resistance that negatively affects herbivorous insects. We investigated whether treatments with the endophytes Trichoderma harzianum and Beauveria bassiana in two onion cultivars (Allium cepa L.; Sturon and Red ...
Ngoc Anh Vu   +2 more
wiley   +1 more source

Cellular immune response of Amblyomma sculptum and Amblyomma americanum to entomopathogenic fungi: Implications for biological tick control

open access: yesMedical and Veterinary Entomology, Volume 40, Issue 3, Page 582-594, September 2026.
Amblyomma sculptum showed a plasmatocyte‐dominant haemocyte profile. Beauveria bassiana increased plasmatocytes and reduced granulocytes, whereas Metarhizium robertsii did not cause significant changes. Amblyomma americanum showed a granulocyte‐dominant haemocyte profile. Beauveria bassiana reduced total haemocytes and granulocytes. B.
Cárita de Souza Ribeiro‐Silva   +7 more
wiley   +1 more source

The divergence of DHN-derived melanin pathways in Metarhizium robertsii

open access: yesWorld Journal of Microbiology and Biotechnology
Abstract The important role of dihydroxynaphthalene-(DHN) melanin in enhancing fungal stress resistance and its importance in fungal development and pathogenicity are well-established. This melanin also aids biocontrol fungi in surviving in the environment and effectively infecting insects.
Linan Xie   +8 more
openaire   +2 more sources

MrSkn7 Controls Sporulation, Cell Wall Integrity, Autolysis, and Virulence in Metarhizium robertsii [PDF]

open access: yesEukaryotic Cell, 2015
ABSTRACT Two-component signaling pathways generally include sensor histidine kinases and response regulators. We identified an ortholog of the response regulator protein Skn7 in the insect-pathogenic fungus Metarhizium robertsii , which we named MrSkn7. Gene deletion assays and functional characterizations
Yanfang Shang   +4 more
openaire   +2 more sources

Empirical Support for the Pattern of Competitive Exclusion between Insect Parasitic Fungi

open access: yesJournal of Fungi, 2021
Fungal entomopathogens are largely facultative parasites and play an important role in controlling the density of insect populations in nature. A few species of these fungi have been used for biocontrol of insect pests.
Shiqin Li   +3 more
doaj   +1 more source

Leaf penetration by endophytic Metarhizium brunneum enables infection of Phthorimaea absoluta in tomato mines while inducing the crop defense system

open access: yesPest Management Science, Volume 82, Issue 8, Page 7794-7808, August 2026.
Spraying Metarhizium brunneum on tomato plants controls heterogeneous and upcoming Phthorimaea absoluta populations by infecting larvae within mines and priming plant induced systemic defences. Abstract BACKGROUND The endophytic entomopathogenic fungus Metarhizium brunneum Petch EAMa 01/58‐Su shows strong potential for managing Phthorimaea absoluta, a ...
Esther Aguilera Cuenca   +5 more
wiley   +1 more source

Production of Helvolic Acid in Metarhizium Contributes to Fungal Infection of Insects by Bacteriostatic Inhibition of the Host Cuticular Microbiomes

open access: yesMicrobiology Spectrum, 2022
The nortriterpenoid helvolic acid (HA) has potent antibiotic activities and can be produced by different fungi, yet HA function remains elusive. Here, we report the chemical biology of HA production in the insect pathogen Metarhizium robertsii.
Yanlei Sun   +4 more
doaj   +1 more source

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