Acta Biologica 20. (1969)
1. szám
ADIUVANTIBUS G. CSABA B FLERKÓ В. С » Y б R F F Y S. KROMPECIIER J SALÁNKI REDIGIT I. TÖRŐ TOMUS XX FASCICULUS I -•щт AKADÉMIAI KIADÓ, BUDAPEST 1969 Rajbanshi, V. К. — Tewari, H. В.: Histochemical studies on the distribution of alkaline and acid phosphatases in the barbels of a fresh-water teleost, Saccobranchus fossilis 1 Sharma, A. K. —Gosh, S.: A comparative study of the effects of certain chemical agents on chromosomes ................. 11 Hortobágyi, T.: Report of an algal bloom in Viet-Nam ... 23 Korotkova, G. P.—Tokin, B. P.: Stimulation of the processes of somatic embryogenesis in some Porifera and Coelenterata. II. Provocation of somatic embryogenesis in Laomcdea flexuosa HlNKS by colchicine and mechanical injuries .................................... 35 Guraya, S. S.: Histochemical study of follicular atresia in the amphibian ovary.............................................................................. 43 Csaba, G.—Surján, L. jr.—Fischer, J. —Kiss, J.—Törő, I. JR.: On the mechanism of mast cell formation. Effect of glucocorticoids on the mast cells of normal and thymectomizcd rats............................................................. 57 Zwierz, K. — Bialobrzeska, J.—Popowicz, J.: L-glutamine: D-fructose-6-phosphate aminotransferase (EC 2.6.1.16) activity in mammalian tissues ............................................... 75 Vitális, S. —Szabó, G.: Cytomorphological effect of factor C in submerged cultures on the hyphae of Streptomyces griseus strain No. 52 — 1............................................................. 85 Tar, E. —Oláh, I.—Törő, I.: Cell migration in the developing follicle of the bursa of Fabricius between cortex and medulla............................................................................ 93 H. Oláh, É.: Hexosamine production in vitro by rat tissues under aerobic and anaerobic conditions .......... 101 Áros, B. —Konok, I.: Light microscopic examination of the nervous system of Tunicata...................................................... 109 Recensiones ...................................................................................................... 125