Buscar
Mostrando ítems 1-10 de 237
Nestmate recognition in the stingless bee Frieseomelitta varia (Hymenoptera, Apidae, Meliponini): sources of chemical signals
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)
Social insects use cuticular lipids for nestmate recognition. These lipids are chiefly hydrocarbons that can be endogenously produced or acquired from the environment. Although these compounds are already described as ...
Chemometric approach to the foliar cuticle of Ptilophyllum micropapillosum sp. nov. from the Springhill Formation (Lower Cretaceous, Argentina)
(Elsevier Science, 2019-12)
Ptilophyllum micropapillosum sp. nov. is a new bennettitalean frond recovered from the Lower Cretaceous Springhill Formation, Patagonia, Argentina. The foliar cuticle is herein characterized by means of light and scanning ...
Comparison and correlation between chemical profiles of cephalic salivary glands and cuticle surface of workers of apis mellifera (Hymenoptera, Apidae)
(2017-01-01)
The cuticle surface of insects displays functions in communication, such as recognition. It is known that oenocytes are responsible for the origin of the compounds found in the epicuticle. Secretion of exocrine glands might ...
Cuticle ultrastructure in Brachyphyllum garciarum sp. nov (Lower Cretaceous, Argentina) reveals its araucarian affinity
(Elsevier Science, 2019-10)
A detailed and extensive study of a new species, Brachyphyllum garciarum sp. nov., was carried out through the analysis of the gross morphology and the cuticle fine details, structure and ultrastructure characters of its ...
Molecular structure of the cuticles of Dicroidium and Johnstonia (Corystospermaceae, Triassic, Argentina). Ecophysiological adaptations of two chemically indistinguishable, morphology-based taxa
(Elsevier Science, 2019-09)
Cuticles of compression-preserved Dicroidium odontopteroides and Johnstonia coriacea (Corystospermaceae, Upper Triassic, Mendoza, Argentina) are spectrochemically analyzed. The objectives included (i) studying the chemical ...
Relationship Between Hydrocarbon Composition on the Cuticle of Melipona quadrifasciata (Hymenoptera: Apidae) Workers and the Secretion of the Cephalic Salivary Glands
(Univ Estadual Feira Santana, 2018-10-01)
Since chemical communication is pivotal for social insect success, the present paper aimed to quantify and qualify the chemical compounds that might have pheromonal role in both cephalic salivary gland and epicuticle of ...
Chemical analysis of different larval instars and tissues of Pachycondyla (=Neoponera) villosa (Hymenoptera: Formicidae, Ponerinae)
(2002-01-01)
Chemical analyses of complete larvae of the first to third instar and cuticle, fat body and salivary glands extracts of fourth instar larvae using gas chromatography and gas chromatography-mass spectrometry, were performed ...