نتایج جستجو برای: قارچ بیمارگر beauveria bassiana

تعداد نتایج: 9363  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Marit Farenhorst Joel C Mouatcho Christophe K Kikankie Basil D Brooke Richard H Hunt Matthew B Thomas Lizette L Koekemoer Bart G J Knols Maureen Coetzee

The evolution of insecticide resistance in mosquitoes is threatening the effectiveness and sustainability of malaria control programs in various parts of the world. Through their unique mode of action, entomopathogenic fungi provide promising alternatives to chemical control. However, potential interactions between fungal infection and insecticide resistance, such as cross-resistance, have not ...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 2015
Andrea Toledo Silvina López Mónica Aulicino Ana María de Remes-Lenicov Pedro Balatti

Entomopathogenic fungi are potential tools to biocontrol cicadellids and delphacids, two groups of insects that cause extensive damage to agricultural crops. However, bacteria living on the host cuticle may inhibit fungal growth. In the present work, following the molecular characterization of 10 strains of Bacillus isolated from the integument of cicadellids and delphacids, we selected isolate...

Journal: :Revista odontologica de Puerto Rico 1967
R Acevedo

Abstarct Effects of Beauveria bassiana (Bals.-Criv.) spores on immune functions of Glyphodes pyloalis Walker larvae were studied. Total and differential hemocyte counts revealed that infection by B. bassiana caused a dramatic change in hemocyte number. In vivo and in vitro studies demonstrated that increase in time exposure to fungal pathogen resulted in elevated phagocytic activity. Nodules we...

2007
Anna Augustyniuk-Kram Marina N. Mandrik Tatyana V. Romanovskaya Emily I. Kolomiets Vladislav N. Kuptsov

Highly active antagonistic actinomycete Streptomyces griseoviridis and entomopathogenic fungus Beauveria bassiana were applied to the soil separately and together (in association) in the laboratory experiments. We assessed survival rate, insecticidal and fungistatic activity of these strains. We also tested the influence of synthetic insecticide Regent 25® (fipronil 25g/l) on investigated param...

Journal: : 2022

In this study, the entomopathogenic fungi; Beauveria bassiana, Isaria fumosorosea and Metarhizium anisopliae were evaluated against fourth nymphs adults of green shield bug, P. prasina. The experiment was conducted both under field laboratory conditions. Isolates included six one fumosorosea. bioassayed in Four replications bioassays analyzed daily for 14 days. LT50 LT95 values experimented iso...

2013
Soroush Parsa Viviana Ortiz Fernando E. Vega

Beauveria bassiana is a fungal entomopathogen with the ability to colonize plants endophytically. As an endophyte, B. bassiana may play a role in protecting plants from herbivory and disease. This protocol demonstrates two inoculation methods to establish B. bassiana endophytically in the common bean (Phaseolus vulgaris), in preparation for subsequent evaluations of endophytic biological contro...

2012
Wanida Petlamul Poonsuk Prasertsan

Ten strains of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana were evaluated to find the most effective strain for optimization studies. The first criterion tested for strain selection was the mortality (> 50%) of Spodoptera litura larvae after inoculation of the fungus for 4 days. Results on several bioassays revealed that B. bassiana BNBCRC showed the most virulence ...

Journal: :Insect science 2016
Weronika Świergiel Nicolai V Meyling Mario Porcel Birgitta Rämert

Low impact alternatives to synthetic insecticides for the control of apple sawfly (Hoplocampa testudinea Klug) are scarce encumbering pest management in organic apple orchards. We investigated the soil persistence and field efficacy of the entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin (BotaniGard) against apple sawfly under common organic orchard practices. We also assessed the...

2017
Dongxu Xing Qiong Yang Liang Jiang Qingrong Li Yang Xiao Mingqiang Ye Qingyou Xia

The silkworm Bombyx mori is an economically important species. White muscardine caused by Beauveria bassiana is the main fungal disease in sericulture, and understanding the silkworm responses to B. bassiana infection is of particular interest. Herein, we investigated the molecular mechanisms underlying these responses in two silkworm strains Haoyue (HY, sensitive to B. bassiana) and Kang 8 (K8...

ژورنال: :نامه انجمن حشره شناسی ایران 0
لیدا فکرت مجتبی ممرآبادی

برهم کنش پاتوژن- میزبان فرایندی بسیار پیچیده است. همانند بسیاری از قارچ‏های پاتوژن حشرات، beauveria bassiana آنزیم‏هایی تولید می‏کند که در زمان آلودگی برای نفوذ به داخل بدن میزبان، کوتیکول را از بین می‏برند. کیتینازها آنزیم‏های مهمی برای هیدرولیز کیتین به شمار می‏روند و می‏توانند نقش مهمی در کنترل بیولوژیک آفات مختلف، ازجمله تریپس پیاز، thrips tabaci lind.، ایفا نمایند. در این پژوهش، آغازگرهای ...

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