نتایج جستجو برای: b. germanica.

تعداد نتایج: 900179  

Background and Objective: Today, one of the problems of health systems is the presence of cockroaches in hospitals as insects that move freely in and out of the hospitals and are infected with pathogenic bacteria. The aim of this study was to identify carbapenem resistance genes in Escherichia coli isolated from Blattella germanica by dot blot assay in Hamadan hospitals in the west of Iran. Me...

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2003
Dong-Kyu Lee Won-Ja Lee Jae-Kug Sim

Studies on the population and infestation rates of domestic cockroaches were conducted from September 1999 to October 2000 in 154 residences in 21 districts (dong) in Busan and 170 residences in 12 districts in Seoul, Republic of Korea, using sticky traps. Blattella germanica, Periplaneta americana and Periplaneta fuliginosa were collected from three different types of houses, apartments, singl...

2017
Hafsa Memona Farkhanda Manzoor Saffora Riaz

BACKGROUND Cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various pathogens of diseases. The present study was conducted from April 2013 to March 2014 in various human dwelling localities of urban area of district Lahore, Pakistan. METHODS Cockroa...

Journal: :journal of arthropod-borne diseases 0
hafsa memona department of zoology, lahore college for women university, lahore, pakistan farkhanda manzoor department of zoology, lahore college for women university, lahore, pakistan saffora riaz department of zoology, lahore college for women university, lahore, pakistan

background : cockroaches are found as the most common urban pests of tropical countries, prompting economic and serious health risk problem for humans by carrying microbes and allergens, acting as vector for various patho­gens of diseases. the present study was conducted from april 2013 to march 2014 in various human dwelling local­ities of urban area of district lahore, pakistan. methods : coc...

Journal: :The Journal of Cell Biology 1976
M D Cave

Amplification of the genes coding for ribosomal RNA oocurs in the oocytes of a wide variety of organisms. In oocytes of various species of crickets (Orthoptera: Gryllidae) the amplified DNA is contained in a large extrachromosomal DNA body. Multiple nucleoli form about the periphery of the DNA body during the diplotene stage of meiosis I. In contrast to the general pattern of orthopteran oocyte...

Journal: :Pest management science 2006
Changlu Wang Gary W Bennett

The insecticidal activity of a cockroach gel bait containing a chitin synthesis inhibitor, noviflumuron, was evaluated using laboratory and field strains of the German cockroach, Blattella germanica (L.). Noviflumuron gel bait (0.01-5 mg g(-1)) caused > or = 90% nymphal mortality to laboratory and field strains of B. germanica in choice tests after 11 and 19 days of continuous exposure respecti...

Journal: :Asian Pacific journal of tropical biomedicine 2011
E Abolghasemi Kazem S H Moosa M Abolhasani M Davoudi

OBJECTIVE To determine the sensitivity of Blattela germanica L (B. germanica L) to differenct doses of insulin. METHODS B. germanica were reared in laboratory conditions at (25±2) °C and (50±5)% relative humidity (RH), and exposure period of 12:12 L/D. Different concentrations, viz. 5, 10, 15, 20 and 25 µ of insulin N, R, (N+R) were prepared and injected to 10 treated cockroaches with another...

2017
Yanlin Tian Ameya Gondhalekar Kevin Keener Gary Bennett Steve Yaninek Mahsa Fardisi Scott Williams Yi Chen Shandian Zhe Wanqing Zhang Gang Shao Tian Guo

Yanlin Tian. M.S., Purdue University, May 2015. Potential of ozone technology for german cockroach (Blattella germanica (L.)) management. Major Professors: Linda J Mason and Ameya D Gondhalekar. German cockroaches (Blattella germanica (L.)) are important urban pests that adversely impact human health. Previous studies indicated that ozone technology (ozone gas) can be used as a management tool ...

2002
KARL J. KRAMER

Abstraet--Sclerotized oothecae from four species of cockroaches, Periplaneta americana, P. fuliginosa, Blatta orientalis and Blattella germanica, were examined by solid-state 13C-nuclear magnetic resonance and chemical analyses. The oothecae were composed of protein, water, calcium oxalate, diphenolic compounds, lipid, and uric acid. Calcium oxalate was the major soluble component in egg cases ...

Journal: :The Journal of biological chemistry 1997
L K Arruda L D Vailes T A Platts-Mills M L Hayden M D Chapman

We report that a major 23-kDa allergen from German cockroach (Blattella germanica) is a glutathione S-transferase (EC 2.5.1.18; GST). Natural B. germanica GST, purified from cockroach body extracts by glutathione affinity chromatography, and recombinant protein expressed in Escherichia coli using the pET21a vector, showed excellent IgE antibody binding activity. B. germanica GST caused positive...

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