Auxin dependence and auxin oxidase of cultured sycamore cells

Summary Quantitative and qualitative differences in auxin-oxidases extracted from auxin-dependent (S) or auxin-independent (MB) sycamore cells were analyzed. MB auxin-oxidases have a higher activity, but the molecular weight of this enzymatic complex is lowered by freeze-drying, without loss of the activity. Correlations with auxin-independence are discussed in this context.     

Seasonal monoamine changes in the central nervous system ofMytilus edulis (Bivalvia)

Summary The levels of serotonin, dopamine and norepinephrine exhibit seasonal changes in the central nervous system of Mytilus edulis. These monoamines were higher during the summer and lower during the winter.     

Über die Wechselwirkungen zwischen der französischen Schule,Riemann und Weierstraß. Eine Übersicht mit zwei Quellenstudien

Ohne Zusammenfassung Vorgelegt von I. B. Cohen     

Isolation and partial characterization of receptor sites of normal human lymphocytes for lectins]

Glycoproteins of the lymphocyte surface are involved in many membrane mediated events. Their specific carbohydrate determinants might interact with lectins. Purification of macromolecules released from normal human lymphocytes by trypsin was performed using gel filtration and affinity properties for Ricinus sanguineus agglutinin. Some structural and biochemical characteristics are given. Relation to HLA determinants and surface immunoglobulins is discussed.     

Cyclic activity of the corpus allatum related to gonotrophic cycles in adult femalePeriplaneta americana

Zusammenfassung Durch Inkorporation von¹⁴C-Methionin in die Corpora allata vonPeriplaneta americana werden während des Eireifungszyklus zwei Aktivitätsmaxima festgestellt und diese als Juvenilhormonsynthese interpretiert.