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Oscar E Romero - One of the best experts on this subject based on the ideXlab platform.
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cocconeis Pediculus ehrenberg and c placentula ehrenberg var placentula bacillariophyta typification and taxonomy
Fottea, 2009Co-Authors: Regine Jahn, Wolfhenning Kusber, Oscar E RomeroAbstract:The nominate varieties of the monoraphid diatoms Cocconeis Pediculus EHRENBERG and C. placentula EHRENBERG are typified. Discrepancies from common concepts in Ehrenberg's types, habitats and descriptions were discovered which might affect our current understanding of both Cocconeis species. To ensure stabilization of names and concepts for these two taxa, epitypes from a location in Berlin close to the locus typicus are presented. Monoclonal cultures of these two taxa have been established. Morphological and morphometric data from clones as well as from populations for both taxa are presented. The taxonomy of C. Pediculus and C. placentula var. placentula is discussed and evaluated in the context of historical and recent publications.
Regine Jahn - One of the best experts on this subject based on the ideXlab platform.
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cocconeis Pediculus ehrenberg and c placentula ehrenberg var placentula bacillariophyta typification and taxonomy
Fottea, 2009Co-Authors: Regine Jahn, Wolfhenning Kusber, Oscar E RomeroAbstract:The nominate varieties of the monoraphid diatoms Cocconeis Pediculus EHRENBERG and C. placentula EHRENBERG are typified. Discrepancies from common concepts in Ehrenberg's types, habitats and descriptions were discovered which might affect our current understanding of both Cocconeis species. To ensure stabilization of names and concepts for these two taxa, epitypes from a location in Berlin close to the locus typicus are presented. Monoclonal cultures of these two taxa have been established. Morphological and morphometric data from clones as well as from populations for both taxa are presented. The taxonomy of C. Pediculus and C. placentula var. placentula is discussed and evaluated in the context of historical and recent publications.
Lance A. Durden - One of the best experts on this subject based on the ideXlab platform.
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molecular markers of pesticide resistance and pathogens in human head lice phthiraptera pediculidae from rural georgia usa
Journal of Medical Entomology, 2017Co-Authors: Marina E. Eremeeva, Denise L Bonilla, Danielle Capps, Emmanuel B Winful, Shamta Warang, Sarah E Braswell, N K Tokarevich, Lance A. DurdenAbstract:Although the head louse, Pediculus humanus capitis De Geer, and body louse, Pediculus humanus humanus L., both have a worldwide distribution, the occurrence of head louse pediculosis appears to be more prevalent in modern societies despite systematic use of various pediculicides. This study tested head lice collected in rural Georgia and body lice collected in Russia for the prevalence of a kdr-biomarker that is associated with permethrin resistance. This study also screened lice for the presence of DNA from Bartonella quintana and Acinetobacter species. The kdr-permethrin resistance biomarker for the T917I mutation was detected by RFLP and PCR in 99.9% of head lice tested from Georgia, whereas only 2.9% of body lice from Russia tested positive for this kdr biomarker. DNA of B. quintana was detected in 10.3% of head lice from Georgia, whereas 84.8% of body lice from Russia tested positive. Acinetobacter DNA was detected in 80.8% (95% CI, 68-89%) of head lice from Georgia and all body lice from Russia tested.
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The Sucking Lice (Phthiraptera: Anoplura) of Georgia, USA: Hosts, Geographical Distributions, and Medical/Veterinary Importance
Journal of Entomological Science, 2014Co-Authors: Lance A. Durden, Edie E. Willis, Allison M. Garretson, Marina E. EremeevaAbstract:Abstract Twenty-five species of sucking lice (Phthiraptera: Anoplura) are recorded from Georgia, USA. One of these species is currently recognized as 2 distinct subspecies, the body louse (Pediculus humanus humanus L.) and head louse (Pediculus humanus capitis De Geer) of humans. Gray squirrels, southern flying squirrels, humans, and domestic cattle are parasitized by relatively rich faunas of sucking lice in Georgia with 3 characteristic species/subspecies recorded from each of these hosts within the state. Despite some previously published erroneous host-louse records, most species of sucking lice are host specific in Georgia. Sucking lice have been recorded from domestic hogs, cattle, equines, goats, and dogs in Georgia, and some of these lice can cause veterinary problems. The head louse is common in Georgia, especially in school children. The crab/pubic louse [Pthirus pubis (L.)] also appears to be widespread in the state. We report only one verified record of the body louse from Georgia, but we susp...
Marina E. Eremeeva - One of the best experts on this subject based on the ideXlab platform.
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molecular markers of pesticide resistance and pathogens in human head lice phthiraptera pediculidae from rural georgia usa
Journal of Medical Entomology, 2017Co-Authors: Marina E. Eremeeva, Denise L Bonilla, Danielle Capps, Emmanuel B Winful, Shamta Warang, Sarah E Braswell, N K Tokarevich, Lance A. DurdenAbstract:Although the head louse, Pediculus humanus capitis De Geer, and body louse, Pediculus humanus humanus L., both have a worldwide distribution, the occurrence of head louse pediculosis appears to be more prevalent in modern societies despite systematic use of various pediculicides. This study tested head lice collected in rural Georgia and body lice collected in Russia for the prevalence of a kdr-biomarker that is associated with permethrin resistance. This study also screened lice for the presence of DNA from Bartonella quintana and Acinetobacter species. The kdr-permethrin resistance biomarker for the T917I mutation was detected by RFLP and PCR in 99.9% of head lice tested from Georgia, whereas only 2.9% of body lice from Russia tested positive for this kdr biomarker. DNA of B. quintana was detected in 10.3% of head lice from Georgia, whereas 84.8% of body lice from Russia tested positive. Acinetobacter DNA was detected in 80.8% (95% CI, 68-89%) of head lice from Georgia and all body lice from Russia tested.
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The Sucking Lice (Phthiraptera: Anoplura) of Georgia, USA: Hosts, Geographical Distributions, and Medical/Veterinary Importance
Journal of Entomological Science, 2014Co-Authors: Lance A. Durden, Edie E. Willis, Allison M. Garretson, Marina E. EremeevaAbstract:Abstract Twenty-five species of sucking lice (Phthiraptera: Anoplura) are recorded from Georgia, USA. One of these species is currently recognized as 2 distinct subspecies, the body louse (Pediculus humanus humanus L.) and head louse (Pediculus humanus capitis De Geer) of humans. Gray squirrels, southern flying squirrels, humans, and domestic cattle are parasitized by relatively rich faunas of sucking lice in Georgia with 3 characteristic species/subspecies recorded from each of these hosts within the state. Despite some previously published erroneous host-louse records, most species of sucking lice are host specific in Georgia. Sucking lice have been recorded from domestic hogs, cattle, equines, goats, and dogs in Georgia, and some of these lice can cause veterinary problems. The head louse is common in Georgia, especially in school children. The crab/pubic louse [Pthirus pubis (L.)] also appears to be widespread in the state. We report only one verified record of the body louse from Georgia, but we susp...
Ismail Soner Koltas - One of the best experts on this subject based on the ideXlab platform.
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The epidemic typhus and trench fever are risk for public health due to increased migration in southeast of Turkey.
Acta tropica, 2017Co-Authors: Nilgün Ulutasdemir, Fadime Eroglu, Mustafa Tanrıverdi, Eda Icbay Dagli, Ismail Soner KoltasAbstract:Pediculus humanus capitis is a small ectoparasitic insect that has lived and feds on human beings for thousands of years. Molecular techniques have been used for Pediculus species identification and evolutionary, phylogenic, and ecological studies. A total of 23 adults of P. h. capitis were collected in Gaziantep, located in southeast Turkey, and DNA was isolated from all P. h. capitis using DNA extraction kit. All DNA samples were screened for investigate of Ricettsia prowazekii, Bartonella quintana and Borrelia recurrentis with real-time polymerase chain reaction. In addition, we investigated genetic variation in DNA samples of Pediculus humanus capitis using the cytochrome oxidase I genetic DNA sequence. We found 4 (17.4%) Ricettsia prowazekii and 3 (13.1%) Bartonella quintana in DNA samples of Pediculus humanus capitis, while we did not find any Bartonella recurrentis in any of the DNA samples. We demonstrated 1.8% genetic variations in DNA samples of Pediculus humanus capitis with Bartonella quintana. The phylogenetic tree based on the cytochrome oxidase I gene revealed that P. h. capitis in southeast Turkey are classified into two clades (clade A, clade B) and Bartonella quintana was found in only clade B. However, we did not find any genetic variations in other DNA samples in this region. The genetic variations may be related to P. h.capitis vector of Bartonella quintana has found in this study. In addition, this study was shown that P. h. capitis do transmit Rickettsia prowazekii and Bartonella quintana to people, epidemic typhus and trench fever may emergence in Gaziantep southeast of Turkey in the future.
