caa a22 4500 467889791 CHVBK 20180406152745.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s00049-006-0335-y doi (NATIONALLICENCE)springer-10.1007/s00049-006-0335-y Eggs of cabbage root fly stimulate conspecific oviposition: Evaluation of the activity and determination of an egg-associated compound [Elektronische Daten] [Sandrine Gouinguené, Thomas Poiger, Erich Städler] Summary.: Previous studies indicated the presence of antennally-active compounds in extracts of eggs laid by female cabbage root flies, Delia radicum, that stimulated oviposition by conspecific females. We confirmed that previously laid D. radicum eggs stimulated oviposition by other D. radicum females, in a dose-dependent manner. Methanol extracts of conspecific eggs stimulated oviposition by females D. radicum, whereas egg extracts of D. antiqua and Psila rosae had no effect. Electrophysiological recordings from the tarsal sensilla of D. radicum females indicated that neurones of the C5 sensillum responded to the egg extracts from both D. radicum and D. antiqua, but not P. rosae. Chemical analysis revealed that the extract of eggs from D. radicum contained the thia-triaza-fluorene compound, 1,2-dihydro-3-thia-4,10,10b-triaza-cyclopenta[.a.]fluorene-1-carboxylic acid (CIF-1), an oviposition stimulant found previously only in cruciferous plants. Another potentially active component has yet to be identified. Birkhäuser Verlag, Basel, 2006 Delia radicum nationallicence eggs nationallicence oviposition stimulant nationallicence CIF nationallicence contact chemoreception nationallicence HPLC-MS nationallicence Delia antiqua nationallicence Psila rosae nationallicence Gouinguené Sandrine Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut Poiger Thomas Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut Städler Erich Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut CHEMOECOLOGY Birkhäuser-Verlag; www.birkhauser.ch 16/2(2006-06-01), 107-113 0937-7409 16:2<107 2006 16 49 https://doi.org/10.1007/s00049-006-0335-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00049-006-0335-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gouinguené Sandrine Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut NATIONALLICENCE 700 1- Poiger Thomas Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut NATIONALLICENCE 700 1- Städler Erich Agroscope FAW Wädenswil, Swiss Federal Research Institute, 8820, Wädenswil, Switzerland aut NATIONALLICENCE 773 0- CHEMOECOLOGY Birkhäuser-Verlag; www.birkhauser.ch 16/2(2006-06-01), 107-113 0937-7409 16:2<107 2006 16 49 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer