Showing papers in "Journal of Invertebrate Pathology in 1976"

TL;DR: Hemagglutinin-containing extracts of Otala albumin gland were shown to opsonize formalized red cells and the rate of ingestion of the bacteria used in this study by Otala hemocytes was variable and was not influenced by the presence of hemolymph in the medium.

TL;DR: The role of granular hemocytes in the formation of the initial cell/bacteria aggregates is discussed along with the possible importance of nodules to the cellular defense reactions of insects.

TL;DR: The pathology caused by bacterial infection includes diminution in numbers of hemocytes, reduced clotting ability of the hemolymph, and progressive formation of hemocyte aggregations with necrotic centers in the heart, arteries, and hemal sinuses and spaces.

TL;DR: It is suggested that clumping is a cellular defense reaction and that it is related to the production of nodules, and a theoretical model of the process was found to agree well with the data.

TL;DR: Pathogenicity studies were undertaken on first- to fifth-instar larvae fed a high dosage of Nosema necatrix spores and, after comparison with existing species of the genera Nosema and Parathelohania, it is placed in the new genus Vairimorpha.

TL;DR: Methods of obtaining uniform batches of conidiospores and stock insects are described together with an assay technique using isolated apterae on leaf discs at virtually 100% relative humidity, with effects on precision of varying the numbers of replicate assays, doses within an assay, and insects per dosage.

TL;DR: A mycosis in larvae of the Dungeness crab, Cancer magister, was observed about 48 hr after they had molted to second-stage zoeae in the laboratory during a chronic bioassay, and a fungus of the genus Lagenidium caused about 40% mortality of larvae before the test was terminated.

TL;DR: The transmission of the baculovirus of Oryctes rhinoceros, previously called Rhabdionvirus oryctes, was studied and found that the virus is transmitted most frequently during mating, possibly when the unin infected partner contacts virus material excreted by the infected partner.

TL;DR: As alfalfa looper nuclear polyhedrosis virus (NPV) was serially passed through TN-368 cell cultures, the percentage of the cell population that developed infection with the MP variant decreased, while cells infected with FP variant increased, and both variants were detected in viral progeny from diseased larvae.

TL;DR: Adult longevity, oviposition, fecundity and fertility were adversely affected by infection with Nosema pyrausta, and Reproduction of infected moths was 39.3% lower than that of moths with no detectable infection, and heavily infected moth had 52.0% lower reproduction.

TL;DR: A comparison of this fungus with other mite-infecting fungi revealed that it is more closely related to E. floridana than toE.

TL;DR: Cabbage looper larvae and Velvetbean caterpillars were equally susceptible to isolates of the entomogenous fungus Nomuraea rileyi from Missouri, Mississippi, and Brazil; an isolate from Florida was 7–17 times less active than the other isolates.

TL;DR: Several modifications of the dissolution method employed for obtaining Porthetria dispar nuclear polyhedrosis virus from polyhedral inclusion bodies (PIBs) were utilized in attempts to obtain undegraded virus particles and polyhedron proteins.

TL;DR: Peroral infection of Solenopsis richteri larvae with spores of Beauveria bassiana was demonstrated and the fungal spores were observed to germinate in the gut within 72 hr postinfection.

TL;DR: In this article, the effect of various vaccines on the humoral and cellular defense mechanisms of the American lobster was evaluated by quantifying accurately the in vitro phagocytosis of sheep erythrocytes and Aerococcus viridans var. homari (formerly Gaffkya homari).

TL;DR: The results suggest than an observed gross loss of potency of this serotype in beehives is more likely to be due to death of spores than to deterioration of crystals, and the reaction of G. mellonella to serotype V is nearest to that of a type 3 host species.

TL;DR: Several protocols were then tested for producing the NPV of Autographa californica in this culture system and the results are described.

TL;DR: The utilization of glucose and glycogen, coupled with the production of lactate and no increase in oxygen utilization, by M. mercenaria cells actively engaged in phagocytosis indicates that glycolysis is the energy-providing pathway.

TL;DR: A heavy application of Nomuraea rileyi conidia significantly altered the epizootic pattern normally associated with soybean caterpillars, and low populations of susceptible caterpillar that are infected with N. r Rileyi may produce sufficient conidia to regulate incipient pest populations.

TL;DR: A synergistic factor than enhances the infection of a nuclear polyhedrosis virus in the armyworm, Pseudaletia unipuncta, was isolated from the occlusion body (capsule) of a granulosis virus of the armyworms.

TL;DR: Results indicated that B. thuringiensis δ-endotoxin could act as an uncoupler of oxidative phosphorylation and lead to metabolic imbalance and possible cell death in mitochondria isolated from Bombyx mori midgut epithelium.

TL;DR: Feeding and probing choice experiments demonstrate that infected chickens are less attractive to Aedes aegypti than uninfected chickens.

TL;DR: The levels of aminopeptidase activity in the serum and hemolymph cells of the American oyster, Crassostrea virginica, have been determined to be 2.89 ± 2.25 and 0.62 ± 0.39 Sigma units/ml, respectively as mentioned in this paper.

TL;DR: Observations on the behavior of these granulocytic leukocytes in vitro confirm that a strong phagocytic response develops toward a variety of particles in the virtual absence of snail hemolymph.

TL;DR: Host response of two penaeid species from the Gulf of Mexico to the pathogenic fungus Fusarium sp.

TL;DR: The tentative conclusion is made that this fungus is the causative agent of a new mycosis of larval lobsters.

TL;DR: The occurrence of lipase in serum and cells suggests that suitable substrates could be degraded by hydrolysis extracellularly as well as within phagocytes.