| three new species of antricola (acari: argasidae) from brazil, with a key to the known species in the genus. | three new species of antricola (acari: argasidae) are described from adult specimens collected on bat guano in different caves in brazil. the female of antricola guglielmonei n. sp. is easily determined by the presence of 2 smooth, depressed areas lacking setae in the posterolateral portions of the dorsum of the idiosoma, together with the partial fusion of the tubercles in the anteromedian portion of the idiosoma. the male of this species has a small spiracular plate surrounded by a pattern of ... | 2004 | 15270091 |
| observations on antricola ticks: small nymphs feed on mammalian hosts and have a salivary gland structure similar to ixodid ticks. | ticks use bloodmeals as a source of nutrients and energy to molt and survive until the next meal and to oviposit, in the case of females. however, only the larvae of some tick species are known to feed upon bats; females are obligatorily autogenous, and nymphal stages are believed to not feed. we investigated the presence of blood in a natural population of nymphal antricola delacruzi ticks collected from bat guano; their ability to feed upon laboratory hosts; and the microscopic structure of bo ... | 2008 | 18576742 |
| new reports of antricola guglielmonei and antricola delacruzi in brazil, and a description of a new argasid species (acari). | adults of 3 tick species (acari: argasidae) identified as antricola guglielmonei, antricola delacruzi, and carios rondoniensis n. sp. were collected on bat guano in a cave in the state of rondônia, western amazon, brazil. adults of c. rondoniensis possess a unique combination of characters that distinguish them from all described adults in the argasidae, i.e., a large spiracular plate densely filled with small goblets, a well-developed flap covering the female genital opening, and palpi containi ... | 2008 | 18576796 |
| comparative bioinformatics, temporal and spatial expression analyses of ixodes scapularis organic anion transporting polypeptides. | organic anion-transporting polypeptides (oatps) are an integral part of the detoxification mechanism in vertebrates and invertebrates. these cell surface proteins are involved in mediating the sodium-independent uptake and/or distribution of a broad array of organic amphipathic compounds and xenobiotic drugs. this study describes bioinformatics and biological characterization of 9 oatp sequences in the ixodes scapularis genome. these sequences have been annotated on the basis of 12 transmembrane ... | 2014 | 24582512 |
| conserved amblyomma americanum tick serpin19, an inhibitor of blood clotting factors xa and xia, trypsin and plasmin, has anti-haemostatic functions. | tick saliva serine protease inhibitors (serpins) facilitate tick blood meal feeding through inhibition of protease mediators of host defense pathways. we previously identified a highly conserved amblyomma americanum serpin 19 that is characterised by its reactive center loop being 100% conserved in ixodid ticks. in this study, biochemical characterisation reveals that the ubiquitously transcribed a. americanum serpin 19 is an anti-coagulant protein, inhibiting the activity of five of the eight s ... | 2015 | 25957161 |
| tick-borne infections in human and animal population worldwide. | the abundance and activity of ectoparasites and its hosts are affected by various abiotic factors, such as climate and other organisms (predators, pathogens and competitors) presenting thus multiples forms of association (obligate to facultative, permanent to intermittent and superficial to subcutaneous) developed during long co-evolving processes. ticks are ectoparasites widespread globally and its eco epidemiology are closely related to the environmental conditions. they are obligatory hematop ... | 2015 | 27047089 |
| the sialotranscriptome of antricola delacruzi female ticks is compatible with non-hematophagous behavior and an alternative source of food. | the hosts for antricola delacruzi ticks are insectivorous, cave-dwelling bats on which only larvae are found. the mouthparts of nymphal and adult a. delacruzi are compatible with scavenging feeding because the hypostome is small and toothless. how a single blood meal of a larva provides energy for several molts as well as for oviposition by females is not known. adults of a. delacruzi possibly feed upon an unknown food source in bat guano, a substrate on which nymphal and adult stages are always ... | 2012 | 22306723 |