Marine diatoms Coscinodiscus granii: They live in open waters such as the North Sea. Under the microscope, many single-celled diatoms can be seen, some of which are healthy, while others are infected by an egg fungus. The zoospores that the fungus forms for reproduction can be seen as small dots.

Publications of O. Schaaf

Journal Article (6)

2000
Journal Article
Jarvis, A. P.; Schaaf, O.; Oldham, N. J.: 3-Hydroxy-3-phenylpropanoic acid is an intermediate in the biosynthesis of benzoic add and salicylic acid but benzaldehyde is not. Planta 212 (1), pp. 119 - 126 (2000)
Journal Article
Schaaf, O.; Baumgarten, J.; Dettner, K.: Identification and function of prothoracic exocrine gland steroids of the dytiscid beetles Graphoderus cinereus and Laccophilus minutus. Journal of Chemical Ecology 26 (10), pp. 2291 - 2305 (2000)
Journal Article
Schaaf, O.; Dettner, K.: Transformation of steroids by Bacillus strains isolated from the foregut of water beetles (Coleoptera: Dytiscidae): II. Metabolism of 3 beta-hydroxypregn-5-en-20-one (pregnenolone). Journal of Steroid Biochemistry and Molecular Biology 75 (2-3), pp. 187 - 199 (2000)
Journal Article
Schaaf, O.; Dettner, K.: Polyunsaturated monoglycerides and a pregnadiene in defensive glands of the water beetle Agabus affinis. Lipids 35 (5), pp. 543 - 550 (2000)
Journal Article
Schaaf, O.; Jarvis, A. P.; Esch, V. D.; Giagnacovo, G.; Oldham, N. J.: Rapid and sensitive analysis of azadirachtin and related triterpenoids from Neem (Azadirachta indica) by high- performance liquid chromatography-atmospheric pressure chemical ionization mass spectrometry. Journal of Chromatography A 886 (1-2), pp. 89 - 97 (2000)
1998
Journal Article
Schaaf, O.; Dettner, K.: Transformation of steroids by Bacillus strains isolated from the foregut of water beetles (Coleoptera: Dytiscidae): I. Metabolism of androst-4-en-3,17-dione (AD). Journal of Steroid Biochemistry and Molecular Biology 67 (5-6), pp. 451 - 465 (1998)
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