Publications serve as the concrete art form for the scientist. It is his modus operandi. Authorship is akin to success and achievement. It cannot and should not deteriorate into a bargaining tool or commodity.
Dagne, E., Bisrat, D., Van Wyk, B-E., Viljoen, A.M., Hellwig, V., Steglich, W. 1997. Anthrones from Aloe microstigma. Phytochemistry 44: 1271–1274.
5-Hydroxyaloin A and a new anthrone, named as microstigmin A, were isolated from the leaf exudate of Aloe microstigma. The structure of microstigmin A was determined by spectroscopic techniques as well as by conversion into 5-hydroxyaloin A.