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Registros recuperados: 361
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9-Hydroxydec-trans-2-enoic acid, a pheromone stabilizing honeybee swarms National Institute of Agronomic Research
Butler, C.G.; Callow, R.K.; Chapman, J.R..
A colony of honeybees (Apis mellifera L.) deprived of its hive and combs behaves like a reproductive swarm and will cluster on any convenient support. When the queen is taken away from such an artificial swarm, the workers soon become restless and increasing numbers fly off until eventually the cluster breaks up altogether.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; SWARM; 9-HYDROXYDEC-TRANS-2-ENOIC ACID; ESTER; PHEROMONE; MANDIBULAR GLAND; ABEILLE DOMESTIQUE; INSECTE SOCIAL; ESSAIM; ACIDE 9-HYDROXYDEC-TRANS-2-ENOIQUE; ESTER; PHEROMONE; GLANDE MANDIBULAIRE.
Ano: 1964 URL: http://hdl.handle.net/2174/444
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A comparative study of the dorval vessels of bees National Institute of Agronomic Research
Wille, Alvaro.
Two main types of dorsal vessels were found in the 101 species dissected, representing 61 genera and including most of the major groups of bees. In one type the dorsal vessel is straight and ruris dorsal to the gut; in the other type it makes an arch between the dorsal longitudinal muscles of the thorax, sometimes with a series of loops just behind the ascending portion. Intermediate types occur. Within any family or tribe in which both main types occur, that with the straight thoracic portion is always found in the primitive forms; and vessels with a series of loops are found only in the most specialized bees. An evolutionary trend is evident toward reduction of the posterior section of the dorsal vessel and its ostia. In the Meliponini, or stingless...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS; APIDAE; HYMENOPTERA; SOCIAL INSECT; ANATOMY; DORSAL VESSEL; COMPARATIVE STUDY; ABEILLE DOMESTIQUE; INSECTE SOCIAL; ANATOMIE; VAISSEAU DORSAL; ETUDE COMPARATIVE.
Ano: 1958 URL: http://hdl.handle.net/2174/430
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A new design of microsyringe tip for the instrumental insemination of queen honey-bees National Institute of Agronomic Research
Butler, C.G..
IN 1927, Watson described the construction of a number of glass microsyringes which he had used for the instrumental insemination of queen honey-bees. The tips of these syringes were straight and the operator holds one of these syringes in line with the long axis of the queen when, introducing it into her vagina. This type of glass syringe was simplified and improved during the course of time both by Watson himself and also by Nolan and others; but really satisfactory results were infrequently obtained at this stage.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; QUEEN; INSEMINATION; DEVICE; MICROSYRINGE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; REINE; INSEMINATION ARTIFICIELLE; APPAREILLAGE; MICROSERINGUE.
Ano: 1950 URL: http://hdl.handle.net/2174/392
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A new gene controlling resistance to Fusarium oxysporum f. sp. melonis races 0 and 2 in melon National Institute of Agronomic Research
Oumouloud, A.; González Torres, R.; Arnedo Andrés, M.S.; Alvarez, J.M..
‘Tortuga’ is a cantalupensis accession of Spanish origin which has proven to be resistant to Fusarium oxysporum f.sp. melonis races 0 and 2. In this work we report the results of an allellism test to assess the inheritance of this resistance. Resistance in ‘Tortuga’ seems to be controlled by two genes, one of them is the already described Fom-1, and the other is either a dominant one linked to Fom-1, or an independent recessive factor. Further work will be needed to clarify the nature of this resistance.
Tipo: Poster Palavras-chave: Mediterranean country; Cucumis melo; Fusarium wilt; Physiological races; Allelism test; Disease resistance; Cantaloup.
Ano: 2008 URL: http://hdl.handle.net/2174/242
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A new view on aphid resistance in melon: the role of Aphis gossypii variability National Institute of Agronomic Research
Boissot, N.; Mistral, P.; Chareyron, V.; Dogimont, C..
Resistance to Aphis gossypii in Cucumis melo has been largely studied but A. gossypii variability has never been considered. Resistance to colonization by A. gossypii, clone NM1, and to non persistent virus transmission by this clone is conferred by a NBS-LRR gene called Vat, isolated in the PI 161375 accession. We investigated resistance to A. gossypii with four clones of A. gossypii that belong to two very distinct genotypes, NM1 and C9. The Vat gene conferred a high level of resistance to a NM1 clone and partial resistance to a C9 clone. Four additive QTL and two pairs of epistatic QTL were detected in a recombinant inbred line population derived from the cross ‘Védrantais’ x PI 161375. Half of them clearly have a specific effect on the acceptance by...
Tipo: Conference Paper Palavras-chave: Cucumis melo; Vat; QTL; Insect resistance; Allelic variability; Disease resistance; Virus vector; Virus transmission; SSR markers; Aphis gossypii.
Ano: 2008 URL: http://hdl.handle.net/2174/207
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A qualitative analysis of amino acids in pollen collected by bees National Institute of Agronomic Research
Auclair, Jacques L.; Jamieson, Cecil A..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; POLLEN; COLLECTED POLLEN; AMINO ACID; ABEILLE DOMESTIQUE; INSECTE SOCIAL; ACIDE AMINE; POLLEN COLLECTE.
Ano: 1948 URL: http://hdl.handle.net/2174/407
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A recessive gene conferring ethylene insensitivity and androecy in Cucurbita pepo National Institute of Agronomic Research
Manzano, S.; Dominguez, V.J.; Garrido, D.; Gómez, P.; Jamilena, M..
The genetic and physiological analysis performed in the ‘Vegetable spaghetti’ (Veg) inbred line of Cucurbita pepo subsp. pepo has indicated that its androecious phenotype is determined by a single recessive gene conferring ethylene insensitivity. The production of female flowers in the androecious line starts much later than in normal varieties, and is lower than 30 %, with some of the plants producing less than 5 % female flowers. The androecious trait segregates as a single recessive gene in F2 generation, and cosegregates with a weak ethylene insensitive phenotype in seedlings. In fact, etiolated seedlings of the ‘Veg’ line and the most androecious plants in the F2 generation produce more ethylene than the contrasting line, but are less sensitive to...
Tipo: Poster Palavras-chave: Inheritance; Ethylene production; Sex expression; Cucurbita pepo; Androecy.
Ano: 2008 URL: http://hdl.handle.net/2174/280
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A review of production systems on watermelon quality National Institute of Agronomic Research
Davis, A.R.; Webber III, C.L.; Perkins-Veazie, P.; Ruso, V.; Lopez-Galarza, S.; Sakata, Y..
Cultural practices have been reported to affect quality and phytonutrient content of watermelon [Citrullus lanatus var. lanatus (Thunb.) Matsum. & Nakai]. Knowing which cultivars perform well under various technologies and production systems, and knowing how these systems affect quality and phytonutrient content is imperative to ensure high quality fruit. Organic production and grafting are two cultural practices that are increasing among watermelon producers. Each of these technologies have the potential to interact with cultivars to influence watermelon quality. This review discusses the effects organic culture, input level, and grafting have on watermelon fruit quality.
Tipo: Poster Palavras-chave: Citrullus lanatus; Lycopene; Brix; Quality; Organics; Grafting; Watermelon; Production system; Cultural practices.
Ano: 2008 URL: http://hdl.handle.net/2174/279
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A simple method of feeding Nosema apis inoculum to individual honeybees National Institute of Agronomic Research
Furgala, B.; Maunder, M.J..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; INDIVIDUAL; NOSEMA APIS; INOCULUM; ABEILLE DOMESTIQUE; INSECTE SOCIAL; INDIVIDU; NOSEMA APIS; INOCULATION.
Ano: 1961 URL: http://hdl.handle.net/2174/452
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A survey of the incidence of Nosema disease (Nosema apis Zander) of the honey bee in south Australia National Institute of Agronomic Research
Doull, Keith; Cellier, K.M..
A 2-year survey of the incidence cf nosema disease of the honey bee in South Australia bas shown that a spring peak of infection may be expected each year. The level of infection is at a minimum in midsummer and winter but a rise may occur in the autumn. It was considered that the disease, either in the form of a few infected bees or of spores on the combs, was present in all hives throughout the survey. Significant differences in the level of infection between hives in the same apiary suggested that there may be factors, varying in some way from hive to hive, which determine the level of infection within each hive. In view of the appreciable variation between hives it is evident that the incidence of the disease in individual hives was estimated with...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; AUSTRALIA; NOSEMA APIS; INFECTIOUS DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; AUSTRALIE; NOSEMA APIS; MALADIE INFECTIEUSE.
Ano: 1961 URL: http://hdl.handle.net/2174/479
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A theory of the causes of development of epizootics of nosema disease of the honey bee National Institute of Agronomic Research
Doull, Keith M..
A hypothesis is presented to explain the developments of epizootics of nosema disease of the honey bee, Apis mellifera Linnaeus. It is assumed that most hives contain some lightly infected carrier bees in which the numbers of the parasite increase very slowly. But under the influence of certain conditions the parasites within these bees increase in numbers very quickly, and, if other conditions are favorable, an epizootic of the disease will develop. A hypothetical course of development of an epizootic is described. It is suggested that the numbers of the parasite increase when the metabolism of infected bees is changed so as to change the environment of the intracellular parasites. Changes in the metabolism of infected bees are considered to be stress...
Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; NOSEMA; INFECTIOUS DISEASE; EPIZOOTICS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; NOSEMA; MICROSPORIDIE; MALADIE INFECTIEUSE; EPIDEMIE.
Ano: 1961 URL: http://hdl.handle.net/2174/478
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Abeilles et Environnement National Institute of Agronomic Research
Leconte, Yves; Belzunces, Luc; Vaissière, Bernard; Vermandère, Jean-Paul; Carré, Gabriel.
Tipo: Working Paper Palavras-chave: Bee; Environment; Ecology; Population dynamics; Pollination; Toxicology; Abeille; Environnement; Ecologie; Dynamique des populations; Toxicologie; Ecologie.
Ano: 2008 URL: http://hdl.handle.net/2174/187
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Absorption of C14-labeled sucrose by alfalfa nectaries National Institute of Agronomic Research
Pedersen, M.W.; Lefevre, Cecil W..
Tipo: Journal Article-postprint Palavras-chave: ALFALFA; MEDICAGO SATIVA; NECTARY; SUCROSE; ABSORPTION; C14; LUZERNE; MEDICAGO SATIVA; NECTAIRE; SUCROSE; ABSORPTION; C14.
Ano: 1958 URL: http://hdl.handle.net/2174/418
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Acarapis mites of the honey bee, Apis mellifera Linnaeus National Institute of Agronomic Research
Eckert, J.E..
A review of references on Acarapis woodi (Rennie) indicated that this acarapis mite is not as serious as has generally been stated in American beekeeping literature. It is not considered to be the cause of Isle of Wight disease of bees. The quarantine against the importation of honey bees into the United States, except from Canada, is based on the probable effect this pest might have on the beekeeping industry. The rediscovery of an external acarapis mite in the United States in 1959, raised the question as to the actual relationship of acarapis mites to bees. The two external mites, Acarapis dorsalis Morgenthaler and Acarapis externus Morgenthaler were subsequently found to be widely scattered in Canada and the United States without any visible symptoms...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; AGE; DEVELOPMENT; UNITED STATES; CANADA; ACARAPIS DORSALIS; ACARAPIS EXTERNUS; MITE; HOST-PARASITE; RELATIONSHIP; ABEILLE DOMESTIQUE; INSECTE SOCIAL; AGE; DEVELOPPEMENT; ETATS-UNIS; CANADA; ACARAPIS DORSALIS; ACARAPIS EXTERNUS; ACARIEN; RELATION HOTE-PARASITE.
Ano: 1961 URL: http://hdl.handle.net/2174/446
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Accumulation des anthocyanes et caroténoïdes dans les abricots rouges National Institute of Agronomic Research
Bureau, Sylvie; Gouble, Barbara; Grotte, Maggy; Ginies, Christian; Reich, Maryse; Reling, Patrice; Bogé, Marielle; Clauzel, Guy; Audergon, Jean-Luc.
Tipo: Working Paper Palavras-chave: Anthocyanin; Carotenoid; Apricot; Secondary metabolite; Anthocyane; CaroténoÏde; Abricot; Métabolite secondaire.
Ano: 2008 URL: http://hdl.handle.net/2174/174
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Acetylcholine in the larval food, honey, and stored pollen of a stingless bee, Melipona quadrifasciata National Institute of Agronomic Research
Welsh, John H.; Nogueira-Neto, Paulo; Jaeger, Celso P.; Ancona Lopez, Ana Amelia.
1) Using several methods, the larval food of Melipona quadrifasciata was found to contain amounts of acetylcholine estimated to range between O. 5 and 2.0 mg. equivalents of acetylcholine chloride per gram of larval food. Similar amounts have been reported for the larval food of the honey, bee, Apis mellifera. 2) The larval food of M. quadrifasciata was also found to contain a large amount of choline and an unidentified substance that was soluble in ethanol, gave a blue fluorescence, reacted with Dragendorf's reagent, and had a weak acetylcholine-like action. In one sample of larval food, a substance with the properties of glycine betaine was also found. 3) Samples of stored pollen were also found to contain acetylcholine, choline and the unidentified...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MELIPONA QUADRAFASCIATA; FOOD; LARVAE; HONEY; ACETYLCHOLINE; NEUROTRANSMITTER; QUANTIFICATION; IDENTIFICATION; POLLEN; ABEILLE DOMESTIQUE; INSECTE SOCIAL; NOURRITURE; LARVE; MIEL; ACETYLCHOLINE; NEUROTRANSMETTEUR; QUANTIFICATION; IDENTIFICATION; POLLEN.
Ano: 1965 URL: http://hdl.handle.net/2174/353
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Action de divers constituants chimiquement définis du miel et des extraits d'abeille sur des cellules colchinées du blé National Institute of Agronomic Research
Rebert, A.F..
Parmi les constituants chimiquement définis du miel, des extrait de pollen ou d'abeilles, les vitamines E, K et l'inositol se sont révélés comme de puissants freinateurs de la croissance (jusqu'à 50%) des plantules de blé et comme des corps anti ou problastiques (selon les doses) vis-à-vis des tumeurs colchiciniques du blé ou des phytocarcinomes à Pseudomonas tumefaciens (parfois fonte tumorale). Le groupe des naphtoquinones où nous trouvons le phtyocol (antagoniste possible de la tuméfaction dans les tuberculoses évolutives) comprend également les variations métaboliques des vitamines E et K dont les propriétés physiologiques, en dehors des phénomènes classiques mériteraient une étude plus approfondie.
Tipo: Journal Article-postprint Palavras-chave: HONEY; BEE EXTRACT; POLLEN EXTRACT; CORN; TRITICUM; CELL; COLCHICIN; MIEL; EXTRAIT D'ABEILLE; EXTRAIT DE POLLEN; BLE; TRITICUM; CELLULE; COLCHICINE.
Ano: 1953 URL: http://hdl.handle.net/2174/428
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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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Affecting cucurbit hormonal status by a ZYMV transient expression vector National Institute of Agronomic Research
Davidovich, V.; Leibman, D.; Gal-On, A.; Perl-Treves, R..
Squash and cucumber plants were infected with ZYMV strains engineered to over-express enzymes involved in ethylene and gibberellin biosynthesis. Presence of the inserted ACS gene within the viral RNA was transient and the insert was deleted after 20-40 days. Ethylene over-expressing plants produced very high ethylene levels and were severely stunted. Monoecious cucumbers produced earlier, consecutive female flowers. Gibberellin over-expression was deduced from the observed phenotypic change, plants were taller and flowered earlier.
Tipo: Poster Palavras-chave: Zucchini yellow mosaic virus (ZYMV); GA20 oxidase; ACC synthase; Ethylene; Squash; Cucumber.
Ano: 2008 URL: http://hdl.handle.net/2174/281
Registros recuperados: 361
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