Search results for "pollina"
showing 10 items of 160 documents
Efficacia dei pronubi sulla produttività del melone d'inverno( Cucumis melo var. inodorus) in coltura protetta.
1998
THE ROLES OF PLANT VOLATILES AND THEIR POTENTIAL USE AS FLY ATTRACTANTS
2014
The essential oils composition of the skin, pulp and seeds from fruits of two Sicilian cultivars of Opuntia ficus-indica (cv. Sanguigna and cv. Surfarina has been obtainedby hydrodistillation and the possible semiochemical roles have been investigated comparing the data with those reported in the literature. Several compounds identified in this study have been reported to influence the behaviour of Ceratitis capitata, a phytophagous which causes severe damages to severalcrops including O. ficus-indica and the kairomonal activity of the odour of the fruits seems provided by a blend of compounds found in the various matrices analysed. In sapromyiophilous plants, up to date, long range attract…
Fetid odors in Caralluma europaea (Guss.) N.E.Br. (Apocynaceae-Asclepiadoideae): a chemical characterization
2008
Les métaphores dans L'Enchanteur pourrissant de Guillaume Apollinaire
2001
Mätänevän velhon taidejulistus : intertekstuaalisen ja -figuraalisen aineiston asema Apollinairen L'enchanteur pourrissant teoksen tematiikassa ja sy…
2008
Ranskalainen modernisti Guillaume Apollinaire (1880-1918) marssittaa esikoisteoksessaan L’Enchanteur pourrissant (1909) kuolemattoman velhon haudalle vanhentuneen Troijan Helenan. Rapistuneen kaunottaren ohella mädäntyvän tietäjän lihaa saapuvat haistelemaan mm. viehkeytensä menettäneet juoruileviksi naisiksi muuttuneet haltijattaret, höperöityneet antiikin filosofit ja Raamatun kuolemattomat pyhimykset, jotka ovat unohtaneet uskonsa merkityksen. Apollinairen luomassa groteskissa maailmassa vanha myyttinen perintö kuolee ja mätänee samalla kun maailma vajoaa dekadenttiseen rappioonsa. Riikka Mahlamäki-Kaistisen tutkima Apollinaire on yksi tärkeimmistä 1900-luvun alun ranskalaisista kirjaili…
Guillaume Apollinaire, hymyilevä varas : intertekstuaalisuuden muodot L'Enchanteur pourrissant -teoksessa
2001
Ontogeny of the Calliandra – massulae (Mimosaceae: Ingeae), and the associated viscin body
2006
Abstract Polyads, called also massulae, are common in the Mimosaceae. Within this family, only in Calliandra (s. l.) polyads show a remarkable morphological variation: 16-grained lens-shaped massulae in the neotropical Zapoteca (syn. Calliandra p.p.), and highly asymmetric eight-grained massulae in Calliandra (s. str.). As a further specialisation the massulae in Calliandra (s. str.) possess a sticky appendage called a viscin body. The form and ontogeny of this unique two-dimensional construction of the massula is of particular interest. In Calliandra (s. str.) the octad is normally the developmental product of the initiation stage, beginning with one pollen mother cell (PMC). In total, Cal…
Floral volatiles in a sapromyiophilous plant and their importance in attracting house fly pollinators
2015
Floral scent in sapromyiophilous plants often consists of complex blends with not only fetid (e.g., sulfides) but also sweet (e.g., terpenoids) volatile organic compounds and a recent study suggests that both groups of compounds are involved in pollinator attraction. However, little is known about the number and identity of compounds involved in pollinator attraction in these deceptive plants that mimic breeding sites of fly pollinators. In the present paper, we studied flower volatiles of sapromyiophilous Periploca laevigata and their capability to elicit biological responses in one of the pollinator species, Musca domestica. Floral volatiles were collected by dynamic headspace and analyse…
Olfactory attraction of the hornet Vespa velutina to honeybee colony odors and pheromones.
2014
19 pages; International audience; Since the beginning of the last century, the number of biological invasions has continuously increased worldwide. Due to their environmental and economical consequences, invasive species are now a major concern. Social wasps are particularly efficient invaders because of their distinctive biology and behavior. Among them, the yellow-legged hornet, Vespa velutina, is a keen hunter of domestic honeybees. Its recent introduction to Europe may induce important beekeeping, pollination, and biodiversity problems. Hornets use olfactory cues for the long-range detection of food sources, in this case the location of honeybee colonies, but the exact nature of these c…