نتایج جستجو برای: entomopathogenic fungi

تعداد نتایج: 46713  

2008
Yanping Zhu Jieru Pan Junzhi Qiu Xiong Guan

Entomopathogenic fungus Verticillium lecanii is a promising whitefly and aphid control agent. Chitinases secreted by this insect pathogen have considerable importance in the biological control of some insect pests. An endochitinase gene Vlchit1 from the fungus was cloned and overexpressed in Escherichia coli. The Vlchit1 gene not only contains an open reading frame (ORF) which encodes a protein...

Journal: :Applied and environmental microbiology 2009
Michael Meissle Christina Pilz Jörg Romeis

Genetically engineered maize producing the insecticidal protein Cry3Bb1 from Bacillus thuringiensis (Bt maize) is protected against corn rootworms (Diabrotica spp.), which are serious maize pests in North America and Europe. The aim of the present study was to investigate the interaction of Bt maize (event MON88017) and the entomopathogenic fungus Metarhizium anisopliae for controlling the west...

Journal: :Fungal biology 2015
Tatiana I Sanjuan Ana E Franco-Molano Ryan M Kepler Joseph W Spatafora Javier Tabima Aída M Vasco-Palacios Silvia Restrepo

The neotropical biogeographic zone is a 'hot spot' of global biodiversity, especially for insects. Fungal pathogens of insects appear to track this diversity. However, the integration of this unique component of fungal diversity into molecular phylogenetic analyses remains sparse. The entomopathogenic fungal genus Ophiocordyceps is species rich in this region with the first descriptions dating ...

2012
Andrew G. S. Cuthbertson James J. Mathers Lisa F. Blackburn Michelle E. Powell Gay Marris Stephane Pietravalle Mike A. Brown Giles E. Budge

The Small hive beetle, Aethina tumida, is an invasive pest of honey bees. Indigenous to sub-Saharan Africa, it has now become established in North America and Australia. It represents a serious threat to European honey bees. Commercially available entomopathogenic agents were screened for their potential to control beetle larvae. Entomopathogenic fungi investigated had minimal impact. The nemat...

2011
Francisco J. Posada Fabio C. Chaves Thomas J. Gianfagna Monica Pava-Ripoll Prakash Hebbar

The entomopathogenic fungus Beauveria bassiana was re-isolated from surface sterilized pieces of the cocoa pod outer section and peduncle, two and three months after flowers of greenhouse cocoa plants were hand-pollinated and sprayed with a 1x107 mL-1 suspension of B. bassiana conidia. The colonization frequency of B. bassiana on cocoa pods was 0.8% and 1.3% two and three months post-spraying o...

2013
Almudena Ortiz-Urquiza Nemat O. Keyhani

Infections mediated by broad host range entomopathogenic fungi represent seminal observations that led to one of the first germ theories of disease and are a classic example of a co-evolutionary arms race between a pathogen and target hosts. These fungi are able to parasitize susceptible hosts via direct penetration of the cuticle with the initial and potentially determining interaction occurri...

Journal: :African Journal of Biotechnology 2022

The current study evaluated the bio-control activity of Sudanese isolates entomopathogenic-fungi against 3rd larval instars Khapra beetle (Trogoderma granarium) (Everts) in Sudan and morphologically molecularly characterized virulent isolates. Fungi were isolated using Galleria-baiting method tested larvae immersion-technique at concentration 1×107 conidia ml-1. Commercial product, Eco-Bb...

Journal: :iranian journal of microbiology 0
siji-jinachandrannair vijayakumari central tuber crops research institute, thiruvananthapuram - 695 017, kerala, india. nishanth-kumar sasidharannair central tuber crops research institute, thiruvananthapuram - 695 017, kerala, india. bala nambisan central tuber crops research institute, thiruvananthapuram - 695 017, kerala, india. chellappan mohandas central tuber crops research institute, thiruvananthapuram - 695 017, kerala, india.

background and objectives: entomopathogenic nematodes, belonging to the family heterorhabditis and steinernematidae, are reported to be symbiotically associated with specific bacteria and the secondary metabolites produced by these bacteria possess antimicrobial activity. in this study, bacteria were isolated from nematodes belonging to the family rhabditidae, and the antimicrobial activity was...

Journal: :Jurnal Farmasi Udayana 2023

The occurrence of Mycobacterium tuberculosis resistance encourages the discovery new antitubercular candidates. Microbes including fungi and bacteria are well known reservoir for isolating antibiotic compounds, among natural product resources. In this review, we report promising compounds from marine-derived entomopathogenic fungi, reported 2000 to 2022. A comprehensive literature search was co...

Journal: :Applied and environmental microbiology 2014
Linzhi Yang Nemat O Keyhani Guirong Tang Chuang Tian Ruipeng Lu Xin Wang Yan Pei Yanhua Fan

Serpins are ubiquitously distributed serine protease inhibitors that covalently bind to target proteases to exert their activities. Serpins regulate a wide range of activities, particularly those in which protease-mediated cascades are active. The Drosophila melanogaster serpin Spn43Ac negatively controls the Toll pathway that is activated in response to fungal infection. The entomopathogenic f...

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