Fine structure of tarsal sensilla in the tick Amblyomma americanum (L.)
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چکیده
منابع مشابه
Tissue and life-stage distribution of a defensin gene in the Lone Star tick, Amblyomma americanum.
The transcript sequence of the Amblyomma americanum Linnaeus (Acari: Ixodidae) defensin, termed amercin (amn), was ascertained and a 219-bp amn coding region identified. The gene encodes a 72-amino acid prepropeptide with a putative 37-amino acid mature peptide. This gene shows little similarity to either of the defensins from Amblyomma hebraeum Koch, the only other Amblyomma species for which ...
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Campaniform sensilla on cockroach legs provide a good model system for the study of mechanoreceptive sensory transduction. This paper describes the structure of campaniform sensilla on the cockroach tibia as revealed by light- and electron-microscopy. Campaniform sensilla are proprioceptive mechanoreceptors associated with the exoskeleton. The function of each sensillum centers around a single ...
متن کاملLocalization and visualization of a coxiella-type symbiont within the lone star tick, Amblyomma americanum.
A Coxiella-type microbe occurs at 100% frequency in all Amblyomma americanum ticks thus far tested. Using laboratory-reared ticks free of other microbes, we identified the Amblyomma-associated Coxiella microbe in several types of tissue and at various stages of the life cycle of A. americanum by 16S rRNA gene sequencing and diagnostic PCR. We visualized Amblyomma-associated Coxiella through the...
متن کاملAntibiotic Treatment of the Tick Vector Amblyomma americanum Reduced Reproductive Fitness
BACKGROUND The lone star tick Amblyomma americanum is a common pest and vector of infectious diseases for humans and other mammals in the southern and eastern United States. A Coxiella sp. bacterial endosymbiont was highly prevalent in both laboratory-reared and field-collected A. americanum. The Coxiella sp. was demonstrated in all stages of tick and in greatest densities in nymphs and adult f...
متن کاملMolecular and expression analysis of a family of the Amblyomma americanum tick Lospins.
Serine proteinase inhibitors (serpins) are a family of structurally similar but functionally diverse proteins that regulate several important proteolytic cascades in most branches of life. We have characterized 17 Amblyomma americanum serpin cDNAs here named as ;Lospins' (L; an acronym for Lone Star tick serpin) that possess three beta-sheets, eight alpha-helices and a reactive center loop cons...
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ژورنال
عنوان ژورنال: Zeitschrift f�r Zellforschung und Mikroskopische Anatomie
سال: 1971
ISSN: 0302-766X,1432-0878
DOI: 10.1007/bf00339463