Rubin J
J Embryol Exp Morphol. 1976 Oct;36(2):261-271.
Tips from fruiting bodies and conuses were transplanted into interphase fields of Dictyostelium discoideum amoebae. Progressively increasing concentrations of beef-heart phosphodiesterase added to the fields significantly decreased the chemotactic range of the responding amoebae. The findings suggest that the tip secretes c-AMP. We also find that the chemotactic range is independent of the size of the tip implying that the tip may produce a regulating gradient.
将子实体和圆锥体的尖端移植到盘基网柄菌变形虫的间期区域。向这些区域逐渐增加添加牛心磷酸二酯酶的浓度，显著降低了反应性变形虫的趋化范围。这些发现表明尖端分泌环磷酸腺苷（c-AMP）。我们还发现趋化范围与尖端大小无关，这意味着尖端可能产生一种调节梯度。
