differential responses of anopheles stephensi (diptera: culicidae) to skin emanations of a man, a cow, and a guinea pig in the olfactometer

نویسندگان

s -m omrani department of medical entomology and vector control, school of public health and national institute for health research , tehran university of medical sciences, tehran, iran and department of medical parasitology, school of medicine, shahrekord university of medical sciences,shahrekord, iran

h vatandoost department of medical entomology and vector control, school of public health and national institute for health research , tehran university of medical sciences, tehran, iran

ma oshaghi department of medical entomology and vector control, school of public health and national institute for health research , tehran university of medical sciences, tehran, iran

f shokri department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran

چکیده

background: biting habit of mosquitoes plays an important role in the epidemiology of mosquito-borne diseases. mosquitoes use a set of elaborate sensory modalities to find their preferred hosts by exploiting cues emanating from a nearby host. it has been suggested that the chemical profile of skin can provide further support for anthropophilic mosquito species to find their suitable hosts. this study aimed at revealing the value of skin emanation for a zoo- philic species like anopheles stephensi as a model. m ethods: skin emanations of a man, a cow and a guinea pig were collected by ethanol soaked cottons. upwind responses of mosquitoes to 100 and 200 3l of filtered skin materials were non-competitively explored in a dual-choice olfactometer. l-lactic acid and other chemical content of the skin samples were identified by an enzymatic kit and gc-ms, respectively. r esults: unexpectedly, only human skin emanation was resulted in the statistically significant activation and attrac- tion responses of an. stephensi in the wind tunnel. l-lactic acid content of this skin sample was 10 and 29 times more than the cow and the guinea pig, respectively. the possible role of lactic acid and a few other identified com- pounds have been discussed here. co n clusion: a n o p h eles stephensi showed higher and more specific upwind responses to human skin emanation in the olfactometer. undoubtedly, the thorough explanation of this unexpected finding needs further investigation. but, if new data verify this result, then, it may be necessary to reconsider the role of skin emanation and thence the human blood index and vectorial capacity of this zoophilic mosquito.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Differential Responses of Anopheles stephensi (Diptera: Culicidae) to Skin Emanations of a Man, a Cow, and a Guinea Pig in the Olfactometer

BACKGROUND Biting habit of mosquitoes plays an important role in the epidemiology of mosquito-borne diseases. Mosquitoes use a set of elaborate sensory modalities to find their preferred hosts by exploiting cues emanating from a nearby host. It has been suggested that the chemical profile of skin can provide further support for anthropophilic mosquito species to find their suitable hosts. This ...

متن کامل

a synchronic and diachronic approach to the change route of address terms in the two recent centuries of persian language

terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...

15 صفحه اول

a frame semantic approach to the study of translating cultural scripts in salingers franny and zooey

the frame semantic theory is a nascent approach in the area of translation studies which goes beyond the linguistic barriers and helps us to incorporate cognitive and cultural factors to the study of translation. based on rojos analytical model (2002b), which centered in the frames or knowledge structures activated in the text, the present research explores the various translation problems that...

15 صفحه اول

from linguistics to literature: a linguistic approach to the study of linguistic deviations in the turkish divan of shahriar

chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...

15 صفحه اول

a swot analysis of the english program of a bilingual school in iran

با توجه به جایگاه زبان انگلیسی به عنوان زبانی بین المللی و با در نظر گرفتن این واقعیت که دولت ها و مسئولان آموزش و پرورش در سراسر جهان در حال حاضر احساس نیاز به ایجاد موقعیتی برای کودکان جهت یاد گیری زبان انگلیسی درسنین پایین در مدارس دو زبانه می کنند، تحقیق حاضر با استفاده از مدل swot (قوت ها، ضعف ها، فرصتها و تهدیدها) سعی در ارزیابی مدرسه ای دو زبانه در ایران را دارد. جهت انجام این تحقیق در م...

15 صفحه اول

translating allusive devices:a survey of a portrait of the artist as a young man by james joyce

تلمیح یکی از عناصری است که تقریباً در همه ی متون ادبی یافت و باعث ایجاد شکاف های فرهنگی می شود. در این تحقیق به عنوان شکلی از بینامتنیت در ترجمه مورد توجه قرار می گیرد. تلاش شده است تا راهکارهای مترجمان برای ترجمه چهار نوع اسامی خاص و عبارات کلیدی تلمیحی (مذهبی، سیاسی، تاریخی و اسطوره ای) موجود در رمانِ چهره مرد هنرمند در جوانی به فارسی بررسی شود. این تحقیق مقایسه ای بر اساس راهکارهای ترجمه تلمیح...

15 صفحه اول

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of arthropod-borne diseases

جلد ۴، شماره ۱، صفحات ۱-۱۶

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023