Showing papers in "Journal of Invertebrate Pathology in 2010"

TL;DR: This review provides a survey of the current knowledge in the main fields of Varroa research including the biology of the mite, damage to the host, host tolerance, tolerance breeding andVarroa treatment and comments on the few examples of natural tolerance in A. mellifera.

TL;DR: The present day value of honey bees is highlighted, followed by a detailed description of some of the historical and present day factors that influence honey bee populations, with particular emphasis on colony populations in Europe and the United States.

TL;DR: The historical and recent data on DWV and its relatives are summarized, covering the genetics, pathobiology, and transmission of this important viral honeybee pathogen, and these within the wider theoretical concepts relating to the genetic variability and population structure of RNA viruses, the evolution of virulence and the development of disease symptoms are discussed.

TL;DR: The recent advancements in N. ceranae genetics, with a draft assembly of the N. Ceranae genome available, are discussed and the need for increased research on the impacts of this parasite on European honey bees is emphasized.

TL;DR: A review of recent developments in the study of American Foulbrood and of P. larvae into the general context of AFB research concludes that the disease is still among the most deleterious bee diseases.

TL;DR: This review briefly introduces the many pathogens and parasites afflicting honey bees, highlighting the biology of specific taxonomic groups mainly as they relate to virulence and possible defenses.

TL;DR: A review of the history and recent literature of this virus complex, covering history and origins; the geographic, host and tissue distribution; pathology and transmission; genetics and variation; diagnostics, and discuss these within the context of the molecular and biological similarities and differences between the viruses as discussed by the authors.

TL;DR: This review presents both historical results and recent molecular data to synthesize present knowledge of this enigmatic honey bee disease.

TL;DR: The current taxonomic classification of chalkbrood is discussed in light of the recent complete reworking of fungal systematics brought on by application of molecular methods, as well as pathogen biology, morphology and reproduction.

TL;DR: The infection of Greek honey bees by multiple viruses; the presence of N. ceranae inGreek honey bees and the first record of imidacloprid (neonicotonoid) residues in Greek honey bee tissues are presented.

TL;DR: Corn earworm and beet armyworm were most susceptible to fungal infection, and fall armyworm was least susceptible, and limited testing suggested low susceptibility of black cutworm and cabbage looper.

TL;DR: The morphology and growth of P. heteropterae is described and its potential impact on L. lineolaris in the field is discussed, which was previously reported only once, from an unidentified host species in Poland.

TL;DR: This study demonstrates that the bacteria and virus were both responsible for skin ulceration and peristome tumescence in A. japonicus, but resulted in different early disease symptoms.

TL;DR: Results indicate that this strain of B. bassiana can infect eggs, larvae and adults of R. ferrugineus, and semi-field preventive assays on potted 5-year old Phoenix canariensis palms confirmed the potential of this strain as a biological control agent against this weevil.

TL;DR: The results of such recent detection tests but also previous studies are considered including: (i) the distribution of CBPV infection within the bees and the hive, (ii) the way the virus spreads and its persistence in the colony environment, and (iii) geographical and seasonal distribution and impact ofCBPV infections.

TL;DR: The results indicate that LvHHSP60 and LvHSP70 may play important roles in mediating the immune responses of L. vannamei to bacterial challenge, and that the Ca(2+) signalling transduction pathway may be involved in the initiation of the shrimp's immune responses in early stages of infection.

TL;DR: A real-time PCR assay was developed to facilitate detection and quantification of both Nosema apis and N. ceranae in both single bee and pooled samples, providing the opportunity for detailed study of disease resistance, infection kinetics, and improvement of disease management practices for honey bees.

TL;DR: Specific virulence factors adapted to the insect intestine might exist in B. thuringiensis and B. entomophila, which suggests a co-evolution between host and pathogens and supports the close links between B. cereus and more distant links to their relative B. anthracis.

TL;DR: Vegetal water extracts, namely the water remaining after hydro-distillation and decoctions, and essential oils of 10 plant species were tested as inhibitors for the growth of Paenibacillus larvae, the causative agent of American Foulbrood.

TL;DR: A new semi-quantitative triplex PCR assay is more sensitive, economical, rapid, simple, and reliable than previously published standard PCR-based methods for detection of Nosema and will be useful in laboratories where real-time PCR is not available.

TL;DR: Observations demonstrate that P. imbricata have a variety of morphologically and functionally specialized haemocytes, many of which maybe associated with immunological functions.

TL;DR: The results of this study suggested that MM21 may have been an etiological element in the mass mortalities of hard clam (M. meretrix) in Jiangsu Province of China in 2007.

TL;DR: N. ceranae is found to be the only microsporidium infesting honeybees in Thailand, and it is found the frequencies of N. Ceranae infection in native bees to be less than that of A. mellifera.

TL;DR: Given the increasing dependence on honeybee pollination in North America and Europe, the unquestioned decline in managed honeybee colonies in these regions is alarming and the global health of honeybees is at risk.

TL;DR: A large-scale field experiment was conducted to monitor a husbandry-based method, using comb replacement, as a drug free EFB control option, and real-time PCR data demonstrated that fewer Shook swarm treated colonies contained M. plutonius carryover to the Spring following treatment.

TL;DR: The infestation by sporocyst was the only pathological threat detected for the studied populations because of its potential for host castration and the low infection intensity and/or prevalence of the other parasites and the lack of obvious lesions suggest that there is no other serious pathological risk for the studying mollusc populations.

TL;DR: Results suggest that a putative RNase fused with a BEN domain encoded in CpBV-S3 plays a parasitic role in inducing host immunosuppression in the parasitism.

TL;DR: The primary hemocyte culture could serve as a model for WSSV titration and viral and cellular immune related gene expression and also for investigations on cytotoxicity of aquaculture drugs and chemicals.

TL;DR: The purified lipase was found to promote N. rileyi spore germination in vitro and enhanced toxicity of N.Rileyi toward Spodoptera litura larvae with mortality via topical application reaching 63.3% at 4-10days post-treatment which calculated to be 2.7 times higher than the mortality obtained using conidial suspensions alone.

TL;DR: The outcomes of injection of the in vivo-secreted proteins showed that the toxic proteins secreted in vitro by the EABb 01/110-Su strain are not produced in vivo, suggesting that these toxic proteins may be virulence factors involved in invertebrate pathogenesis.