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Phospholipids and Lipid Acyl Hydrolase (Phospholipase) in Leaf Galls (Hymenoptera: Cynipidae of Black Oak [Quercus robor L.]) 1

Authors
  • Margret H. Bayer
Publication Date
Sep 01, 1983
Source
PMC
Keywords
Disciplines
  • Biology
License
Unknown

Abstract

Phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and cardiolipin are the major phospholipids in young leaves of black oak (Quercus robor L.). Except for phosphatidylcholine, young, developing cynipid-galls on black oak leaves, i.e. the insect-transformed tissues, contain less phospholipid than normal leaf tissues. Lipid acyl hydrolase activity determined by the cleavage of free fatty acids from a labeled phospholipid substrate is higher in the tissue extracts from galls than from leaves. The increase in enzyme activity and the altered phospholipid composition are discussed in relation to expected membrane modifications and transport phenomena in insect-transformed tissues.

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