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Acute infection of bees with paralysis virus National Institute of Agronomic Research
Bailey, L.; Gibbs, J..
Acute bee paralysis virus (ABPV) occurs commonly in adult honey bees (Apis mellifera Linnaeus) in Britain. The amount of the virus in different bees differs, as does the proportion of infected bees in different colonies. No organ or part of a bee, or feces, was found to be invariably free of virus. Bees fed either by other bees that had been infected with pathogenic doses of ABPV, or with food containing up to 10(10) particles of ABPV, did not become obviously diseased but the virus content of their tissues temporarily increased. However, bees either fed with at least 10(11) ABPV particles each, or injected with at least 10(2) particles, became diseased and died, and their abnormal behavior was possibly attributable to the changes observed in their brains....
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; INFECTIOUS DISEASE; VIRUS; PARALYSIS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MALADIE VIRALE; PARALYSIE; VIRUS.
Ano: 1964 URL: http://hdl.handle.net/2174/471
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Ætiology of european foul brood ; a disease of the larval honey-bee National Institute of Agronomic Research
Bailey, L..
THE cause of European foul brood was originally thought to be Bacillus alvei or a mixture of B. alvei and Streptococcus apis. The causative organism was later named and described by White as Bacillus pluton, a lanceolate Gram-positive bacterium. This organism is the first of several which have been found to appear in diseased larvæ. However, White and others failed to culture B. pluton in vitro and it was afterwards considered to be a dissociant form of Bacillus alvei, of Bacterium eurydice, or of both. Others have maintained that B. pluton is a separate organism. It has been pointed out that Streptococcus pluton would be a more suitable designation than Bacillus pluton both on morphological grounds and in the absence of evidence that it forms spores. For...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; ETIOLOGY; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; LOQUE EUROPEENNE; MALADIE INFECTIEUSE; ETIOLOGIE.
Ano: 1956 URL: http://hdl.handle.net/2174/497
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Bacillus larvae : its cultivation in vitro and its growth in vivo National Institute of Agronomic Research
Bailey, L.; Lee, D.C..
Spores of Bacillus larvae White germinate and make initial vegetative growth best in a limited range of low redox potentials, but later growth and sporulation occur best aerobically. Different media needed for best results with each phase of development of the bacillus are described. Spores of B. larvae germinate in the mid-gut contents of honey-bee larvae up to 2 days old. The vegetative forms then migrate and become closely applied to, but do not penetrate, the mid-gut epithelium. Most organisms seem to be voided with the contents of the intestine when an infected larva defaecates shortly before it pupates. A few organisms are presumably left in the intestine and probably invade the tissues of the larva as it pupates.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; BACILLUS LARVAE; IN VITRO SPORULATION; IN VIVO GERMINATION; MIDGUT; LARVAE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; BACILLUS LARVAE; IN VITRO SPORULATION; IN VIVO GERMINATION; INTESTIN; LARVE.
Ano: 1962 URL: http://hdl.handle.net/2174/506
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Comb fumigation for nosema disease National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; NOSEMA; MICROSPORIDIA; DISEASE; COMB; FUMIGATION; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; NOSEMA; MICROSPORIDIE; MALADIE; RAYON; FUMIGATION.
Ano: 1957 URL: http://hdl.handle.net/2174/503
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European foul brood : a disease of the larval honeybee (Apis mellifera L.) caused by a combination of streptococcus pluton (Bacillus pluton White) and Bacterium eurydice White National Institute of Agronomic Research
Bailey, L..
Result of preliminary experiments have shown that European foul brood disease of the larval honeybee can be caused in bee colonies by spraying their brood with suspensions of Streptococcus pluton (Bacillus pluton White) and Bacterium eurydice White if the two organisms are grown together in mixed anaerobic culture ; fifth subcultures of a mixed culture were usually virulent, although virulence diminished rapidly after further sub-cultivation. It was not possible to cause the disease by simultaneous inoculation with separate cultures of the two organisms. As there is a tendency for colonies of S. pluton and B. eurydice to grow within, or upon, each other on agar in anaerobic cultures, the separate cultures of each organism were subcultured five times to try...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; STREPTOCOCCUS PLUTON; BACTERIUM EURYDICE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; LOQUE EUROPEENNE; MALADIE INFECTIEUSE; STREPTOCOCCUS PLUTON; BACTERIUM EURYDICE.
Ano: 1957 URL: http://hdl.handle.net/2174/495
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European foulbrood National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; EUROPEAN FOULBROOD; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LOQUE EUROPEENNE.
Ano: 1961 URL: http://hdl.handle.net/2174/508
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Infectious diseases of the honeybee National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; INFECTIOUS DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MALADIE INFECTIEUSE.
Ano: 1959 URL: http://hdl.handle.net/2174/496
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Paralysis of the Honey Bee, Apis mellifera Linnaeus National Institute of Agronomic Research
Bailey, L..
Chronic bee paralysis virus (CBPV) was differentiated from acute bee paralysis virus (ABPV) by the symptoms it caused when injected into normal bees and by histological and serological means. It was isolated from naturally paralyzed bees from various parts of Britain and from Hong Kong, and, in one instance, from normal bees. Overt disease disappeared when the queens of naturally diseased colonies were replaced with others from normal colonies. Normal bees in colonies or cages were resistant to chronic paralysis when sprayed or fed with CBPV. Bees injected with CBPV transmitted it in the food they passed to normal bees.
Tipo: Journal Article-postprint Palavras-chave: APIS MELLIFERA; APIDAE; APIFORMES; HYMENOPTERA; HONEYBEE; SOCIAL INSECT; POLLINATOR; CHRONIC DISEASE; PARALYSIS; HISTOLOGY; SEROLOGY; RESISTANCE; TROPHALLAXIS; VIRUS; ACUTE DISEASE; QUEEN; TRANSMISSION; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; MALADIE CHRONIQUE; PARALYSIE; HISTOLOGIE; SEROLOGIE; TROPHALLAXIE; REINE; MALADIE AIGUE.
Ano: 1965 URL: http://hdl.handle.net/2174/337
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Results of field trials at Rothamsted of control methods for nosema disease National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; NOSEMA; MICROSPORIDIA; DISEASE; CONTROL; FIELD TRIAL; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; NOSEMA; MICROSPORIDIE; MALADIE; LUTTE; ESSAI EN CHAMP.
Ano: 1955 URL: http://hdl.handle.net/2174/498
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The action of the proventriculus of the worker honeybee, Apis mellifera L. National Institute of Agronomic Research
Bailey, L..
1. The proventriculus of the worker honeybee is an organ which effects a highly efficient separation of pollen grains from the medium in which they are suspended. 2. The pollen grains are packed tightly together by the proventriculus and are passed as a bolus down to the ventriculus. 3. The boluses pass quite quickly towards the posterior end of the ventriculus (5-20 min.), depending on the concentration and amount of pollen suspension which is fed. 4. The peritrophic membranes do not move down the ventriculus with these packages but pass down at a slower rate. 5. At the posterior end of the ventriculus the pollen may be held up for a considerable time. In the brood-rearing bee it stays there for many hours (up to 12 or more). In the forager it begins...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; PROVENTRICULUS; POLLEN; FILTRATION; APIS MELLIFERA; ABEILLE; APIDAE; APPAREIL DIGESTIF.
Ano: 1952 URL: http://hdl.handle.net/2174/520
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The cause of european foul brood National Institute of Agronomic Research
Bailey, L..
Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LOQUE EUROPEENNE; MALADIE INFECTIEUSE.
Ano: 1957 URL: http://hdl.handle.net/2174/491
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The control of nosema disease National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; NOSEMA; MICROSPORIDIA; INFECTIOUS DISEASE; CONTROL; ABEILLE DOMESTIQUE; INSECTE SOCIAL; NOSEMA; MICROSPORIDIE; MALADIE INFECTIEUSE; LUTTE.
Ano: 1954 URL: http://hdl.handle.net/2174/494
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The epidemiology and control of nosema disease of the honey-bee National Institute of Agronomic Research
Bailey, L..
The proportion of honey-bees infected with Nosema apis (Zander) declines in summer as the old infected bees die, for they cease to transmit their infection to the newly emerged individuals during the flying season. N. apis spores survive the summer on combs contaminated with infected faeces during the preceding winter. Although bees clean the combs during the summer, all infected material is not removed, and even well-used brood comb, which has been repeatedly cleaned by bees, can carry infection. Only a few bees may contract infection in the autumn from these faeces, but they join the winter cluster and initiate the next outbreak of the disease. Transferring a colony on to clean comb early in the spring or summer removes the source of the disease, and it...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; NOSEMA; MICROSPORIDIA; DISEASE; EPIDEMIOLOGY; ABEILLE DOMESTIQUE; INSECT SOCIAL; LARVE; NOSEMA; MICROSPORIDIE; MALADIE; EPIDEMIOLOGIE.
Ano: 1955 URL: http://hdl.handle.net/2174/502
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The epizootiology of european foulbrood of the larval honey bee, Apis mellifera Linnaeus National Institute of Agronomic Research
Bailey, L..
Larvae, artificially infected when 0 to 1 day old with Streptococcus pluton (White) and placed in colonies, were usually ejected by adult bees. Ejection was delayed from colonies deprived either of unsealed brood or their queen, or which were reinforced with adult bees. The feces of surviving larvae whose weight was subnormal, contained many viable cells of S. pluton. Colonies reinforced with unsealed brood removed more infected larvae than usual. It is concluded that infected larvae are ejected when larval food is merely adequate, as it may be when a colony is growing rapidly ; and they are kept when larval food is more abundant, as it may be when brood rearing is retarded. Natural outbreaks of disease occurred when brood-rearing, in colonies heavily...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; LOQUE EUROPEENNE; MALADIE INFECTIEUSE.
Ano: 1960 URL: http://hdl.handle.net/2174/493
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The "Isle of Wight disease" : the origin and signifiance of the myth National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; ISLE OF WIGHT DISEASE; PARASITIC ACARI; ACARAPIS WOODI; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MALADIE DE L'ILE DE WIGHT; ACARIEN PARASITE; ACARAPIS WOODI.
Ano: 1963 URL: http://hdl.handle.net/2174/371
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The isolation and cultural characteristics of streptococcus pluton and further observations on bacterium eurydice National Institute of Agronomic Research
Bailey, L..
An account is given of the development of a reliable method for the isolation of Streptococcus pluton (Bacillus pluton White), an organism associated with European foul-brood disease of the larval honeybee. S. pluton, isolated as an anaerobe, may be trained to grow as an aerobe in rod form. Its principal anaerobic growth requirements are a low molar ratio of Na: K, high inorganic phosphate concentration, glucose or fructose, and undetermined factors provided by yeast extract. Peptones are harmful to growth. Aerobic growth has no very critical requirements other than glucose, fructose or sucrose. Bacterium eurydice White which, together with S. pluton, causes European foul-brood disease grows well anaerobically on a yeast extract + glucose + fructose...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; STREPTOCOCCUS PLUTON; BACTERIUM EURYDICE; ISOLATION; CULTURE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; LOQUE EUROPEENNE; MALADIE INFECTIEUSE; STREPTOCOCCUS PLUTON; BACTERIUM EURYDICE; ISOLATION; CULTURE.
Ano: 1957 URL: http://hdl.handle.net/2174/500
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The natural incidence of Acarapis woodi (rennie) and the winter mortality of honeybee colonies National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MORTALITY; WINTER; ACARAPIS WOODI; ACARI; PARASITE; RESPIRATORY SYSTEM; DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MORTALITE; HIVER; ACARAPIS WOODI; PARASITE; APPAREIL RESPIRATOIRE; MALADIE.
Ano: 1961 URL: http://hdl.handle.net/2174/507
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The natural mechanism of suppression of Nosema apis Zander in enzootically infected colonies of the honey bee, Apis mellifera Linnaeus National Institute of Agronomic Research
Bailey, L..
Honey bees, artificially infected with Nosema apis Zander and introduced into an enzootically infected colony in summer when infection was naturally diminishing, were all infected and developed similar numbers of spores to those in naturally infected bees in spring when infection was high. This, and other evidence, suggests infection is not naturally suppressed by increased environmental temperature, but by reduction of infective fecal matter of the bees, which do not transmit infection to young individuals in summer.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; NOSEMA APIS; MICROSPORIDIA; INFECTIOUS DISEASE; NATURAL SUPPRESSION; ABEILLE DOMESTIQUE; INSECTE SOCIAL; NOSEMA APIS; MICROSPORIDIE; MALADIE INFECTIEUSE; SUPPRESSION NATURELLE.
Ano: 1959 URL: http://hdl.handle.net/2174/492
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The occurence of chronic and acute bee paralysis viruses in bees outside Britain National Institute of Agronomic Research
Bailey, L..
Honey bees (Apis mellifera Linnaeus) from Austria and Switzerland, suffering from Waldtrachtkrankheit, and from Italy and Norway suffering from Mal Noir contained as much chronic bee paralysis virus as bees suffering from “paralysis” in Britain and Malta. These diseases appear to be etiologically the same, therefore, and the variable and unreliable signs sometimes exhibited are perhaps caused by factors secondary to infection by the virus. Apparently healthy bees from Canada and Italy were infected with the virus of acute paralysis, as they are in Britain.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; AUSTRIA; SWITZERLAND; GREAT BRITAIN; CHRONIC PARALYSIS; ACUTE PARALYSIS; VIRUS; WALDTRACHTKRANKHEIT; MAL NOIR; ABEILLE DOMESTIQUE; INSECTE SOCIAL; AUTRICHE; SUISSE; GRANDE BRETAGNE; PARALYSIE CHRONIQUE; PARALYSIE AIGUE; MAL NOIR; WALDTRACHTKRANKHEIT; VIRUS.
Ano: 1965 URL: http://hdl.handle.net/2174/376
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The pathogenicity for honey-bee larvae of microorganisms associated with european foulbrood National Institute of Agronomic Research
Bailey, L..
Tests made on larvae in normal bee colonies with pure cultures of Streptococcus pluton (White), Streptococcus faecalis Andrews and Horder, and Bacillus alvei Cheshire and Cheyne, three bacterial species commonly associated with European foulbrood (EFB), showed that S. pluton was the natural prirnary etiological agent. These results, together with other recent work, indicate that S. pluton is the cause of EFB throughout the world. Of the other associated bacterial species, Bacterium eurydice White, which is the most commnon, and S. faecalis probably have supplementary pathogenic effects. Bacillus alvei and other less common bacilli are saprophytes of the dead larvae.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; EUROPEAN FOULBROOD; INFECTIOUS DISEASE; MICROORGANISM; BACTERIA; SAPROPHYTE; STREPTOCOCCUS PLUTON; STREPTOCOCCUS FAECALIS; BACILLUS ALVEI; BACTERIUM EURIDYCE; PATHOGENICITY; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; MALADIE NOIRE; PARALYSIE CHRONIQUE; MALADIE INFECTIEUSE; MICROORGANISME; BACTERIE; SAPROPHYTE; STREPTOCOCCUS PLUTON; STREPTOCOCCUS FAECALIS; BACILLUS ALVEI; BACTERIUM EURIDYCE; PATHOGENICITE; LOQUE EUROPEENNE.
Ano: 1963 URL: http://hdl.handle.net/2174/370
Registros recuperados: 24
Primeira ... 12 ... Última
 

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