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Ultrastructure Studies of the Lupulin Glands of Different Hop (Humulus lupulus L.) Varieties Observed by Scanning Electron Microscope
C. Almaguer, F. Thiele, C. Schnberger and E. K. Arendt

The cones of the female hop (Humulus lupulus L.) plants are of importance to the brewing industry. Only the cones of the female plants are able to secrete the fine yellow resinous powder known as lupulin glands. The lupulin glands are technically termed glandular trichomes; secondary metabolites are synthesized in

Descriptors: hops, lupulin glands, glandular trichomes, scanning electron microscope (SEM), Humulus lupulus L.

BrewingScience - Monatsschrift fr Brauwissenschaft, 68 (November/December 2015), pp. 153-160