Journal
JOURNAL OF INSECT PHYSIOLOGY
Volume 47, Issue 7, Pages 759-766Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0022-1910(01)00050-6
Keywords
diapause; Galleria mellonella; storage proteins; larval hemolymph proteins; fat body; hemolymph
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When one-day-old, last instar Galleria mellonella larvae are exposed to 18 degreesC they enter diapause and cease further development for several months. During diapause a group of proteins (72-84 kDa) synthesized in the fat body and secreted into the hemolymph is markedly elevated. Partial sequencing of the N-terminus of two proteins from this group confirmed their identity with larval hemolymph proteins (LHP) belonging to the family of hexameric storage proteins. The expression of two Lhp genes of known sequence (Lhp76 and Lhp82) were monitored in both diapausing and non-diapausing individuals. The expression of both genes and subsequent synthesis of the proteins (LHP76 and LHP82) is maintained until at least 90-100 days of diapause. (C) 2001 Elsevier Science Ltd. All rights reserved.
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