Weili Kong1, Guangpeng Ma2 and Jinhua Liu1*

...l role in moderating the virulence of influenza virus by multiple mechanisms. Due to C-terminal ‘tail’ (CTT) truncation of NS1, there are length variation types of NS1 in different subtype influenza viruses. CTT functions in several ways to defeat the cellular innate immune responses. Here, we discuss those different effects of CTT truncation or elongation of NS1 protein in different genetic backgrounds of influenza experimentations. Conclusively, ...

Hu Zenglei1 and Xiufan Liu1, 2*

 

Rashid Pervez, Santhosh J. Eapen, S. Devasahayam and M. Dinsha

Characterization of entomopathogenic nematode, Stein-ernema carpocapsae from ginger (Zingiber officinale Rosc.) rhizosphere in India
...s isolate displayed high virulence on above insect species. This study reported occurrence of a isolate of S. carpocapsae from ginger rhizosphere from India. This indigenous isolate could be investigated further for managing insect pests of ginger.

...

M. S. Joshi , D.M. Sawant and A.P. Gaikwad

Isolate variations in Colletotrichum gloeosporioides infecting pomegranate
...assessed on the basis of virulence of the isolates and reaction of a particular variety was expressed in Disease Reaction Index (DRI). There was considerable variation in virulence and suscep-tibility within isolates and varieties. Isolate Cg 86 was found to be virulent (DRI 7.2), Cg 81 as less virulent (DRI 2.87), and other isolates were moderately virulent irrespective of varieties. Fruit varieties Aarakta and Bhagwa were ...
Tiansen Li1, Meiling Huang2, Zhen Wang1,Fei Guo3,Hui Zhang1,* and Chuangfu Chen1,*
...) on bacterial survival, virulence, phagosome-lysosome fusion, and apoptosis induction, as assessed in appropriate in vitro (cell culture) and animal models. Results showed the omp10 mutant was dramatically attenuated for survival in macrophages and mice than the parent strain 2308. With decrease in the spleen/body weight ratios of mice infected with omp10 mutants were noted, inhibition of phagosome-Lysosome fusion was dramaticly impaired,...
Hailong Dong1, Hui Zhang2, Kun Li2, Khalid Mehmood2,3, Mujeeb Ur Rehman2, Fazul Nabi2, Yajing Wang2, Zhenyu Chang1,2, Qingxia Wu1,* and Jiakui Li1,2,*

 

...to detect representative virulence factors or genes, including E.coli adherence factor (K88, CS31A, afaE-8), toxins (estA, estB, Stxl, Stx2, EAST1), pathogenicity island (eaeA, irp2, ETT2) and outer membrane protein (ompA). Moreover O-antigen serotype was tested by slide agglutination test and a mouse model was built to assess the lethality of the E.coli isolates through subcutaneous-infection. Out of 81 E.co...
Abdul Nabi Jatt1,*, Sarfraz Ali Tunio1, Shaista Bano Memon1, Abdul Sattar Qureshi2 and Muhammad Aqeel Bhutto
...ecies utilize enzymes as virulence factors to cause diseases. The aim of the present study was to evaluate enzymatic activities of the bacterial strain Shigella dysenteriae IM using API-ZYM test system. Out of nineteen different enzymes, S. dysenteriae IM strain was capable to poroduce nine enzymes, i.e., alkaline-phosphatase, acidic-phosphatase, lipase, valine arylamidase, cystine arylamidase, napthol-AS-BI-phosphohydrolase, β-galact...
Aqeela Ashraf1,2,*, Muhammad Imran1 and Yung-Fu Chang2
...microbial resistance and virulence genes associated with them. Antimicrobial susceptibility testing was performed by disk diffusion method. Resistance and virulence genes were detected by PCR. The results showed that 100% of isolates were resistant to penicillin, 54% to ampicillin, 44% to tetracycline and 30% to streptomycin, while none of them was resistant to chloramphenicol. These E. coli isolates carried one or mo...

Fatma Abdallah1*, Ola Hassnain2, Elsayed Attar3, Haytham Ali3,5, Mohamed Megahed1 and Venugopal Nair

... associated with the MDV virulence and a unique distortion in the Proline repeats (Proline-to-Alanine) at position 176 in the Egyptian MDV strains. The Phylogenetic analysis grouped the eight analysed sequences with the previously investigated Meq from Egypt (2011-2013) together with the very virulent European and Chinese MDV isolates. The latter confirmed the geographical structuring of the Egyptian MDV strains together with the Eurasian origin viruses in an ...

G. Venkatesan* and Amit Kumar  

...cts. Unique and specific virulence genes located at termini of ORFV genome with their encoded products are attributed to host immune evasion, short-term immunity both in natural infection post-vaccination in target species and repeated host susceptibility. However, these genes are variable among ORFV isolates/strains as they are not located in central part of genome and some of them are either virus specific namely Viral interferon resistant (VIR) and GM-CSF/I...
Arifa Mehreen1, Iram Liaqat2,Muhammad Arshad3, Muzzamil Waheed4 and Najma Arshad1,*
...derstanding of bacterial virulence and immune evasion mechanisms provide novel opportunities to adopt preventive measures and design therapeutics against most prevailing resistant and virulent strains. With this background, this study was designed to characterize Staphylococcus aureus, the most common pathogen,using conventional microbiological and molecular methods. The agar disc diffusion method was used to evaluate the antibiotic susceptibility.

Yasir Ali1*, Muhammad Aslam Khan1, Muhammad Atiq1 and Muhammad Hussain2

Ahmed Samy1*, Hala Mohamed Nabil Tolba2, Gamelat Kotb Farag3 and Ahmed Abd El Halim1 

... infect chickens and its virulence enhanced upon passaging in chickens causing clinical signs and deaths. In the present study brain samples were collected from twelve pigeon flocks exhibiting signs of nervousness and diarrhea in a live bird market (LVM) in Egypt. All collected samples were positive for NDV and negative for avian influenza virus and infectious bronchitis virus. Seven positive samples were subjected for genotypic characterization based upon par...
Sher Bahadar Khan1,2,*, Zou Geng1, Cheng Yu-ting1, Asad Sultan3, Mumtaz Ali4,5, Irshad Ahmad6 and Rui Zhou1
...ogenic isolates based on virulence gene contents that may pose a potential threat to public health.

...
Iram Liaqat1,*, Nazish Mazhar Ali2, Najma Arshad3, Riffat Iqbal1 and Zain-ul-Abideen1
...trypsin target bacterial virulence in Desulfovibrio spp. that causes bacteremia, periodontitis and abdominal infections. Ten soil samples were collected and screened by morphological and biochemical study. Only one strain DUV1 was confirmed by 16S rRNA gene sequencing as D. vulgaris (accession number: KY698020). It showed significantly reduced biofilm formation (52%; p<0.05) by test tube method compared to liquid interface coverslip assay (35%...
Abdul Hanan1, Talha Nazir1, Abdul Basit1, Shahbaz Ahmad2 and Dewen Qiu1,*
...eco-friendly nature. The virulence potential of 3 different isolates of Lecanicillium lecanii formerly recognized as Verticillium lecanii (V-2, V-3 and V-5) with different bioassay materials (conidia, filtrate and the binary combination of conidia + filtrate) were evaluated against green peach aphid (Myzus persicae) under control condition. Conidial bioassay of fungal isolates were evaluated with three different concentrations (1×10<...
Abdul Samad1, Raheela Asmat2, Muhammad Naeem1, Hamida Ali3, Mohammad Zahid Mustafa1, Ferhat Abbas1, Jannat Raza1,3 and Muhammad Tauseef Asmat1*

 

...nd genes associated with virulence. Only 10 (1.25%) samples were found contaminated with Listeria monocytogenes. Milk samples were the most contaminated as 4 samples collected from retail shops or dairy farm were found positive for Listeria. While 2 samples of each beef, chicken meat and salad were contaminated with Listeria. The virulent genes inlA, inlB, prfA, hlyA, actA, plcA and iap <...
Murtala Muhammad, Ting Zhang, Siyu Gong, Jing Bai, Jiansong Ju, Baohua Zhao* and Dong Liu*

Pakistan Journal of Zoology

October

Vol. 52, Iss. 5, Pages 1631-2026

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