Titre :
|
N-15-marked aphids for predation studies under field conditions
|
Auteurs :
|
K. Nienstedt ;
H. Poehling
|
Type de document :
|
article/chapitre/communication
|
Année de publication :
|
2000
|
Format :
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319-323
|
Langues:
|
= Anglais
|
Mots-clés:
|
N-15
;
marker
;
aphids
;
Sitobion avenae
;
Marquage isotopique
;
Azote
;
Aphididae
|
Résumé :
|
Individuals of Sitobion avenae (F.) (Homoptera: Aphididae) were marked with the stable isotope N-15 through feeding on cereal seedlings which were immersed in a N-15-enriched nutrient solution. Increased N-15-contents were obtained in all aphids with no detrimental effect on survival and fertility. When N-15-marked aphids were transferred to non N-15-enriched seedlings, after a short initial decreasing phase, N-15-contents remained nearly constant in time. A content of 10% N-15 in the nutrient solution of the seedlings was sufficient for marking the aphids.
|
Source :
|
Entomologia Experimentalis Et Applicata - 0013-8703, vol. 94, n° 3
|