Cellular and Molecular Life Sciences, Springer (Birkhäuser), 1992/48/11-12/1173-1179
Abstract
Tyrosine betaine, four new cardenolides (<b>4</b>, <b>5</b>, <b>6</b>, and <b>7</b>) and three known cardenolides (<b>2</b>, <b>3</b>, and <b>8</b>) were isolated from the defensive secretion, of the leaf beetle <i>Oreina gloriosa</i> and their chemical structure determined. 16 secretion components of individual beetles were quantified. Secretion composition of field-collected beetles was affected by season, sex and body weight.
