scholarly journals Morphological Adaptation of Cave-Dwelling Ground Beetles in China Revealed by Geometric Morphometry (Coleoptera, Carabidae, Trechini)

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1002
Author(s):  
Mengzhen Chen ◽  
Wanru Guo ◽  
Sunbin Huang ◽  
Xiaozhu Luo ◽  
Mingyi Tian ◽  
...  
Keyword(s):  
Morphological Variation ◽  
Ground Beetles ◽  
Morphological Adaptation ◽  
First Report ◽  
Geometric Morphometry ◽  
Morphological Adaptations ◽  
The World ◽  
Morphometry Analysis ◽  
Cave Environment ◽  
Surface Dwelling

Cave-dwelling ground beetles in China represent the most impressive specific diversity and morphological adaptations of the cavernicolous ground beetles in the world, but they have not been systematically examined in quantitative terms. The present study focuses on the application of geometric morphological methods to address the morphological adaptations of the tribe Trechini, the most representative group in China. We have employed a geometric morphometry analysis of the head, pronotum, and elytra of 53 genera of Trechini, including 132 hypogean and 8 epigean species. Our results showed that the overall morphological variation of cave carabids has gradually specialized from an anophthalmic to semi-aphaenopsian to aphaenopsian type. There were extremely significant differences (p < 0.01) among four different adaptive types including aphaenopsian, semi-aphaenopsian, anophthalmic, and surface-dwelling Trechini when their adaptability to a cave environment was used as the basis for grouping. Furthermore, there were differences in the phenotypic tree of the head, pronotum, and elytra, and an integrated morphology. To the best of our knowledge, this is the first report on the analysis of the head, pronotum, and elytra of four different adaptive types of ground beetles in order to clarify the morphological adaptations of cavernicolous carabids to the cave environment.

scholarly journals Functional morphology of parasitic isopods: understanding morphological adaptations of attachment and feeding structures inNerocilaas a pre-requisite for reconstructing the evolution of Cymothoidae

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2188 ◽  
Author(s):  
Christina Nagler ◽  
Joachim T. Haug
Keyword(s):  
Food Webs ◽  
Functional Morphology ◽  
Micro Ct ◽  
Lateral Movement ◽  
Morphological Adaptation ◽  
Animal Group ◽  
Morphological Adaptations ◽  
The World ◽  
Parasitic Isopods ◽  
Ancestral Type

Parasites significantly influence food webs and ecosystems and occur all over the world in almost every animal group. Within crustaceans there are numerous examples of ectoparasites; for example, representatives of the isopod group Cymothoidae. These obligatory parasitic isopods are relatively poorly studied regarding their functional morphology. Here we present new details of the morphological adaptations to parasitism of the cymothoiid ingroupNerocilawith up-to-date imaging methods (macro photography, stereo imaging, fluorescence photography, micro CT, and histology). Central aspects of the study were (1) the morphology of the mouthparts and (2) the attachment on the host, hence the morphology of the thoracopods. The mouthparts (labrum, mandibles, paragnaths, maxillulae, maxillae, maxillipeds) form a distinct mouth cone and are most likely used for true sucking. The mouthparts are tightly “folded” around each other and provide functional rails for the only two moving mouthparts, mandible and maxillula. Both are not moving in an ancestral-type median-lateral movement, but are strongly tilted to move more in a proximal-distal axis. New details concerning the attachment demonstrate that the angular arrangement of the thoracopods is differentiated to impede removal by the host. The increased understanding of morphological adaptation to parasitism of modern forms will be useful in identifying disarticulated (not attached to the host) fossil parasites.

First report of Rinamba opacicollis Cameron (Hymenoptera: Braconidae, Doryctinae) in India as parasitoid of coffee stem borer, Xylotrechus quadripes (Chevrolat) (Coleoptera: Cerambycidae)

ENTOMON ◽  
2020 ◽  
Vol 44 (4) ◽  
pp. 311-314
Author(s):  
A. Roobakkumar ◽  
H.G. Seetharama ◽  
P. Krishna Reddy ◽  
M.S. Uma ◽  
A. P. Ranjith
Keyword(s):  
Integrated Control ◽  
Host Record ◽  
Stem Borer ◽  
Arabica Coffee ◽  
First Report ◽  
The World ◽  
First Time

Rinamba opacicollis Cameron (Hymenoptera: Braconidae) was collected from Chikkamagaluru, Karnataka, India for the first time from the larvae of white stem borer, Xylotrechus quadripes Chevrolat infesting arabica coffee. Its role in the biological or integrated control of X. quadripes remains to be evaluated. White stem borer could be the first host record of this parasitoid all over the world.

scholarly journals First report on the prevalence of Fasciola hepatica in the endangered Père David’s deer (Elaphurus davidianus) in China

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Si-Yang Huang ◽  
Jing-Zhi Gong ◽  
Yi-Jun Ren ◽  
Ming Pan ◽  
Wei-Min Cai ◽  
...  
Keyword(s):  
Fasciola Hepatica ◽  
Potential Threat ◽  
Prevalence Data ◽  
First Report ◽  
Natural Reserve ◽  
Zoonotic Parasite ◽  
The World ◽  
Père David’S Deer ◽  
Microscopy Examination ◽  
Elaphurus Davidianus

Abstract Background Fasciola hepatica is an important zoonotic parasite that causes fasciolosis in a broad range of animals. No information is available about the prevalence of F. hepatica in Père David’s deer (Elaphurus davidianus), an endangered species in the world. Therefore, the purpose of the study was to evaluate the prevalence of fasciolosis in Père David’s deer in the Dafeng Elk National Natural Reserve, Jiangsu province, China. Results In this study, 142 fecal samples from Père David’s deer were analyzed for F. hepatica by microscopy and nest-PCR. Only one sample was positive for F. hepatica according to microscopy examination, while 18 of 142 (12.68, 95%CI: 2.841–22.45%) samples were positive for F. hepatica according to nest-PCR results. Conclusions This is the first report of prevalence of F. hepatica in Père David’s deer. The prevalence data indicated that F. hepatica was also present in this endangered animal, which may cause a potential threat to this precious species.

Aphelenchoides besseyi parasitizing cowpea (Vigna unguiculata) in Brazil

Plant Disease ◽  
2021 ◽  
Author(s):  
Luciany Favoreto ◽  
Rafaela Bueno ◽  
Angélica Calandrelli ◽  
Patrícia Priscila França ◽  
Mauricio Conrado Meyer ◽  
...  
Keyword(s):  
Common Bean ◽  
Vigna Unguiculata ◽  
Host Reaction ◽  
First Report ◽  
Cowpea Cultivars ◽  
The World ◽  
Cotton Plants ◽  
Aphelenchoides Besseyi ◽  
Leaf Deformation

Several species of nematodes are known to cause losses to cowpea (Vigna unguiculata) throughout the world. In Brazil, Aphelenchoides besseyi was recently described causing damages on soybean, cotton, and common bean, but no report was found about the parasitism of this nematode in cowpea. The present study aimed to verify the host reaction of cowpea cultivars to A. besseyi. The experiment was conducted under greenhouse conditions, using as inoculum two A. besseyi populations, obtained from symptomatic soybean and cotton plants collected in naturally infested fields. Cultivars ‘Imponente’, ‘Aracê’, ‘Guariba’, ‘Tumucumaque’, ‘Nova Era’, and ‘Tracuateua’ were inoculated with 500 A. besseyi of each population, separately, into soil and after 30 days from the inoculation nematodes were extracted from shoot systems. Both populations were able to parasitize all the cowpea cultivars. Independently of the cultivar, cowpea plants exhibited symptoms of leaf deformation similar to those described for soybean, cotton, and common bean and, in addition, severe brooming was observed and the interior of the stems was porous and necrotic. To our knowledge, this is the first report of parasitism by A. besseyi of cowpea in Brazil, under greenhouse conditions, increasing the list of hosts of this nematode.

scholarly journals Exposure of Domestic Cats to Distinct Ehrlichia canis TRP Genotypes

2021 ◽  
Vol 8 (12) ◽  
pp. 310
Author(s):  
Ísis Assis Braga ◽  
Isis Indaiara Gonçalves Granjeiro Taques ◽  
Estefânia Crivelatti Grontoski ◽  
Ingrid Savino de Oliveira Dias ◽  
Nathalia Assis Pereira ◽  
...  
Keyword(s):  
Antibody Test ◽  
Ehrlichia Canis ◽  
Indirect Fluorescence Antibody Test ◽  
Domestic Cats ◽  
Serum Samples ◽  
Specific Antibodies ◽  
First Report ◽  
The World ◽  
Fluorescence Antibody ◽  
Indirect Fluorescence Antibody

Cats naturally exposed to Ehrlichia canis have been described in different regions of the world, but little is known about the genotypes associated with infection in these animals. To detect E. canis-specific antibodies and investigate the E. canis TRP genotypes in cats, serum samples from 76 domestic cats reactive to crude E. canis antigens by the indirect fluorescence antibody test (IFAT) were analyzed by ELISA, using E. canis-specific peptides (i.e., TRP19 and TRP36 /BR/US/CR). Of these, 25 (32.9%) cats reacted to at least one TRP peptide, confirming their specific exposure to E. canis. Eighteen (23.7%) cats reacted to TRP19, 15 (19.8%) to BRTRP36, and 11 (14.5%) to USTRP36, but none of them reacted to CRTRP36. Eight (10.5%) cats reacted to TRP19 but not to any TRP36 genotype, demonstrating the possible existence of a new E. canis genotype infecting felines. Nevertheless, this study provides the first report of anti-E. canis-specific antibodies in domestic cats.

scholarly journals First record of Proechimys pattoni da Silva, 1998 (Rodentia, Echimyidae) in northwestern Bolivia

Check List ◽  
2018 ◽  
Vol 14 (6) ◽  
pp. 1115-1121
Author(s):  
Pamela Sánchez-Vendizú ◽  
Joseph A. Cook ◽  
James Wood ◽  
Jorge Salazar-Bravo
Keyword(s):  
Morphological Variation ◽  
First Record ◽  
Geographic Range ◽  
Lowland Forest ◽  
Molecular Analyses ◽  
First Report ◽  
Diagnostic Characters ◽  
Madre De Dios ◽  
Distributional Range ◽  
Biogeographic Region

Proechimys pattoni da Silva, 1998 is one of the 3 small-bodied species of Proechimys and its geographic range is only known in western Brazil and eastern and southern Peru. However, based on morphological and molecular analyses, we report P. pattoni from the lowland forest of Bolivia (Pando: Rio Madre de Dios, near San Rosa). This is the first report of P. pattoni in Bolivia and extends its distributional range 315 km to the southeast in the Amazon biogeographic region of Bolivia, representing the southeastern most record. Furthermore, we document the karyotype (2n = 40 / FN = 56) and morphological variation in diagnostic characters.

First record of Stenostomum sphagnetorum (Platyhelminthes, Catenulida) from India

Zootaxa ◽  
2020 ◽  
Vol 4816 (3) ◽  
pp. 392-396
Author(s):  
DAIZY BHARTI ◽  
FRANCISCO BRUSA ◽  
SANTOSH KUMAR ◽  
KAILASH CHANDRA
Keyword(s):  
North America ◽  
South America ◽  
Marine Species ◽  
First Record ◽  
Freshwater Ecosystems ◽  
Ganga River ◽  
Knowledge Gap ◽  
Free Living ◽  
First Report ◽  
The World

Catenulida are mostly inhabitants of freshwater ecosystems, like ponds, streams, though the marine species are few (Larsson and Willems, 2010). About 110 species of catenulids are known worldwide, with most of the studies conducted in South America (Marcus, 1945a, 1945b; Noreña et al., 2005), North America (Kepner and Carter 1931; Nuttycombe and Waters, 1938) and Scandinavian Peninsula (Luther, 1960, Larsson and Willems, 2010; Larsson et al., 2008). The diversity of catenulids from India has not been studied intensively; however some reports on other turbellaria exists for the country (Annandale, 1912; Whitehouse, 1913; Kapadia, 1947; Basil and Fernando, 1975; Apte and Pitale, 2011; Kalita and Goswami, 2012; Venkataraman et al., 2015). The genus Stenostomum, however, has been studied extensively around the world with identification of over 60 species (Tyler et al., 2006-2016). This is first report of the genus from India. The present study was part of the project to catalogue the diversity of free living protozoan ciliates from the Hooghly stretch of the Ganga River during which the flatworms were found. The worms were studied based on the live observations, with recognition of characters which led to its identification. This study serves to fill knowledge gap in the freshwater flatworms from India. 

scholarly journals First Report of Peanut mottle virus in Forage Peanut (Arachis pintoi) in the United States

2018 ◽  
Vol 19 (1) ◽  
pp. 13-14
Author(s):  
K. K. Dey ◽  
L. Hassell ◽  
C. Li ◽  
M. Elliott ◽  
X. Sun
Keyword(s):  
United States ◽  
The United States ◽  
Mottle Virus ◽  
Arachis Glabrata ◽  
First Report ◽  
Arachis Pintoi ◽  
Reverse Transcription Pcr ◽  
The World ◽  
Pcr Products ◽  
The Many

Arachis pintoi is one of the many perennial peanuts grown in many tropical and subtropical countries around the world. Although Peanut mottle virus (PeMoV) was reported in Arachis glabrata from Georgia in 2007, there are no reports of PeMoV infecting A. pintoi in the United States. In June 2017, samples of A. pintoi that originated from Hardee County, FL, plants showed a variety of symptoms ranging from yellowing to dark islands, green vein banding, and mild mottling. They tested positive initially with broad-spectrum lateral flow antibody immunoassay and later were confirmed by sequencing the reverse-transcription PCR products. Detection of PeMoV in A. pintoi is significant because it is transmitted by aphids in a nonpersistent manner and is seed-borne in A. hypogea. It is not known if PeMoV is seed-borne in A. pintoi. However, A. pintoi is commonly vegetatively propagated using stolon cuttings. It is possible that PeMoV can spread to A. pintoi in Florida by all these means, making maintenance of virus-free propagation stock plants important. To our knowledge, this is the first report of PeMoV in A. pintoi the United States.

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