Consulta: creatorFacets:"PALMA,M.S."
Registros recuperados: 5
Data/hora: 10/06/2024 10:24:52

ALARM PHEROMONES AND THE INFLUENCE OF PUPAL ODOR ON THE AGGRESSIVENESS OF Polybia paulista (IHERING) (HYMENOPTERA: VESPIDAE)
Provedor de dados: 79
Autores: MANZOLI-PALMA,M.F.; GOBBI,N.; PALMA,M.S.
Field bioassays were used to demonstrate that aggressive behavior of Polybia paulista (Ihering) workers is elicited by alarm pheromones present in the venom reservoirs of nest defenders and that the brood care pheromone (pupal odor) produced by the young inside the nest also plays an important defensive role. Pupal odor was extracted from the surface of pupa bodies with methanol. When bioassayed alone, the pupal odor elicited only attractiveness of workers towards the odor source, but no stinging attacks were observed. However, in the presence of alarm pheromones, the brood care pheromone potentiated the effect caused by the pupal odors, increasing the number of stinging attacks during an action of colony defense. Thus, the presence of pupae within the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Wasps; Brood; Defense behavior; Venom reservoirs.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301998000100006

BIOINSECTICIDE ACTION OF THE VENOM OF AFRICANIZED BEES Apis mellifera LINNAEUS 1758 (HYMENOPTERA: APIDAE): I -THE MOST SUSCEPTIBLE AGE OF Diatraea saccharalis FABRICIUS 1794 (LEPELETIER: PYRALIDAE) EGGS TO THE VENOM ACTION
Provedor de dados: 79
Autores: BONFANTI-ALMEIDA,J.C.; GOBBI,N.; PALMA,M.S.
The present paper aimed at testing the action of non-lyophilized venom of Africanized bees Apis mellifera through topical applications on Diatraea saccharalis egg masses. The CL50, DL50 and the most susceptible age of eggs to the venom topic application were also determined. Three-day-old eggs were the most susceptible to the venom action with CL50 equal to 8.6 mg/ml and DL50 equal to 0.173 mg/mass. The venom loses its action after being stored for 15 days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Venom; Africanized bee; Apis mellifera; Eggs; Sugar-cane borer; Diatraea saccharalis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100006

THE EFFECT OF A POLYDNAVIRUS OF APANTELES GALLERIAE  ON THE HEMOLYMPH PROTEINS OF HOST GALLERIA MELLONELA
Provedor de dados: 79
Autores: BROCHETTO-BRAGA,M.R.; PALMA,M.S.; RIBEIRO,J.C.; GOBBI,N.
The presence of a polydnavirus in the ovary of the microhymenoptera Apanteles galleriae was detected. This wasp parasites the larvae of the wax moth Galleria mellonella. To study the possible viral effects on the total protein of G.mellonella, hemolymph extracts of the ovary calyxes of parasitized A. galleriae were injected into 6th and 7th instar cells of G.mellonella larvae. Protein profiles on polyacrilamide gel electrophoresis containing sodium dodecyl sulfate (SDS-PAGE) of host cell extracts showed a suppression of several protein bands when infection occurred in the 6th instar. However, in the 7th instar, parasitism caused an amplification in the synthesis of most proteins with some changes in the electrophoretic profile.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microhymenoptera; Wax moth; Parasitism; Polydnavirus; SDS-PAGE; Apanteles galleriae; Galleria mellonela.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301995000200005

CHEMICAL COMMUNICATION IN Apis mellifera: TEMPORAL MODULATION OF ALARM BEHAVIORS
Provedor de dados: 79
Autores: COSTA,H.; TALORA,D. C.; PALMA,M.S.; CHAUD-NETTO,J.
The effect of pheromones and their chemical analogues in honeybee alarm behaviors was studied in observation boxes. Defensive behaviors, as follows: a) attraction to scent source, b) elevation of wings in "V", c) abdomen elevation, d) abdomen elevation and pumping and e) first leg pair elevation had been temporarily registered when the following compounds were presented: isoamyl alcohol, octyl alcohol, benzyl alcohol, n-butyl acetate, n-octyl acetate, isopentyl acetate, benzyl acetate and 2-heptanone. The results were as follows: 1. the bees elicited some characteristic behaviors when chemical alarm messages were presented, 2. agression (stinging) was not completed with any compound tested, probably because there was not a target (visual stimulus), 3. in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Defensive behavior; Alarm behaviors; Pheromones; Hybrid honey bees; Chemical communication.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100005

MOLECULAR EXCLUSION CHROMATOGRAPHY OF CRUDE VENOM AS AN AUXILIARY TOOL TO IDENTIFY HYBRID HONEYBEE POPULATIONS
Provedor de dados: 79
Autores: PALMA,M.S.; BROCHETTO-BRAGA,M.R.; CHAUD-NETTO,J.; MALASPINA,O.; OLIVEIRA,M.R.
A comparison among the profiles of molecular exclusion chromatography in Sephadex G 100 column of venoms from Apis mellifera adansonii and Africanized honeybees revealed unique peaks which might be used to identify these populations. The venoms from hybrid populations resulting from the reciprocal mating of Apis mellifera adansonii and Africanized honeybees presented unique peaks, probably resulting from a synergistic effect between the parental genomes. The occurrence of characteristic peaks in venoms of hybrid populations might be used to identify these populations as well as to distinguish them from their parents.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Venom; Hybrid populations; Molecular exclusion chromatography; Honeybees.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301995000100004