نتایج جستجو برای: beauvria bassiana

تعداد نتایج: 1797  

2010
Rajasekhar Pinnamaneni P. Kalidas Sambasiva Rao

Beauveria bassiana is a biocontrol agent which shows entomopathogenecity on insect pests especially the Lepidopterons invading the agriculturally important crops. The mode of infection is through the cuticle by degrading the chitin present on it which is enabled by the exochitinase enzyme of Bbchit1 gene. A good quality DNA was isolated from Beauveria bassiana and amplified with specific primer...

Journal: :The British journal of ophthalmology 1985
S W Sachs J Baum C Mies

The cornea of a 64-year-old white male underwent progressive thinning following removal of a foreign body and after treatment with topical antibiotics and corticosteroid. Initial attempts at laboratory identification of an infectious agent were negative. The process progressed to corneal perforation. After a penetrating keratoplaty, histopathological examination of host button tissue showed a f...

Journal: :Organic & biomolecular chemistry 2005
Juan L Oller-López María Iranzo Salvador Mormeneo Eulalia Oliver Juan M Cuerva J Enrique Oltra

We have established the chemical structure of (+)-bassianolone (3), the antimicrobial compound precursor of cephalosporolides E and F, and that of the furan metabolite 4 from the entomopathogenic fungus Beauveria bassiana.

2016
E.T. Machtinger E.N.I. Weeks C. J. Geden

Filth flies are pests of livestock, and can transmit pathogens that cause disease to animals and their caretakers. Studies have shown successful infection of adult filth flies following exposure to different strains and formulations of entomopathogenic fungi. This study aimed to examine the effects of commercial formulations of Beauveria bassiana (Balsamo) (Moniliales: Moniliaceae) (i.e., Botan...

بیمارگری دو قارچ Beauveria bassiana وLecanicillium muscarium  و مخلوط آن‌ها علیه پوره‌های سن دوم و حشرات کامل سفیدبالک پنبه، Bemisia tabaci در شرایط آزمایشگاهی (در اتاقک رشد، در دمای C˚1±23، رطوبت 5±95 درصد و دورة روشنایی ـ تاریکی 16:8) بررسی شد. پنج غلظت به همراه شاهد (توئین ـ 80) در سطح زیرین برگ‌های بادمجان پاشیده شد. تأثیر قارچ بر حشرات کامل با کاربرد مستقیم غلظت‌ها روی آن‌ها و رهاسازی حشرا...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
حسن عسکری دانشیار ، پردیس ابوریحان ، دانشگاه تهران کیمیا کوهستانی دانشجوی کارشناسی ارشد پردیس ابوریحان، دانشگاه تهران مهدی ضرابی استادیار ، گروه گیاه پزشکی پردیس ابوریحان ، دانشگاه تهران احمد بغدادی استادیار دانشگاه پیام نور، استان تهران

pathogenicity of beauveria bassiana strain debi001, lecanicillium muscarium strain daom 198499 and their combination was investigated on 2nd nymphs and adults of b. tabaci in lab condition (in a germinator, 23±1ºc, 95±5% and 16:8 l:d). five concentrations of each fungi were sprayed on undersides of young eggplant leaves that involved 2nd nymphs. experiments were carried out on adults with the s...

خلیل طالبی رضا طلایی حسنلویی ریحانه عزتی تبریزی عزیز خرازی پاکدل

تهیه فرمولاسیون‌ از بلاستوسپورهای قارچ­های بیمارگر حشرات، امکان استفاده از آنها را به عنوان عوامل کنترل بیولوژیک در شرایط نامساعد محیطی میسر و سبب افزایش کارایی آنها می‌گردد. در پژوهش ­حاضر، فرآورده­های مختلف پودر وتابل از بلاستوسپور جدایه­های EUT105 Beauveria bassiana و EUT116 B. bassiana تهیه و در دو دمای متفاوت یخچال (1±4 درجه سلسیوس) و آزمایشگاه (3±24 درجه سلسیوس) ذخیره شدند. بعد از یک دوره...

2014
Maribel Portilla Gordon Snodgrass Randall Luttrell

A non-autoclaved solid diet was used to evaluate the entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin (Hypocreales: Clavicipitaceae) strain NI8 and the insect growth regulator novaluron (Diamond® 0.83EC insecticide) for control of the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae). The diet was composed of toasted wheat germ, ground lima bean meal...

2013
Giuseppe Cozzi Stefania Somma Miriam Haidukowski Antonio F. Logrieco

Grape berries attacked by Lobesia botrana larvae are more easily infected by Aspergillus section Nigri (black aspergilli) ochratoxigenic species. Two-year field trials were carried out in Apulia (Italy) to evaluate a bioinsecticide control strategy against L. botrana and the indirect effect on reducing ochratoxin A (OTA) contamination in vineyards. A commercial Bacillus thuringiensis formulate...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Ge Wei Yiling Lai Guandong Wang Huan Chen Fang Li Sibao Wang

The insect gut microbiota plays crucial roles in modulating the interactions between the host and intestinal pathogens. Unlike viruses, bacteria, and parasites, which need to be ingested to cause disease, entomopathogenic fungi infect insects through the cuticle and proliferate in the hemolymph. However, interactions between the gut microbiota and entomopathogenic fungi are unknown. Here we sho...

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