کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2791079 | 1154841 | 2013 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: FMRF-amide immunoreactivity pattern in the planula and colony of the hydroid Gonothyraea loveni FMRF-amide immunoreactivity pattern in the planula and colony of the hydroid Gonothyraea loveni](/preview/png/2791079.png)
Gonothyraea loveni (Allman, 1859) is a colonial thecate hydrozoan with a life cycle that lacks a free-swimming medusa stage. The development from zygote to planula occurs within meconidia attached to the female colony. The planula metamorphosis results in the formation of a primary hydranth. The colony then grows by development of new colony elements. In the present work, we studied the temporal pattern of the formation of FMRF-amide-positive cells during embryogenesis, in larvae and during early colony ontogeny. FMRF-amide-positive cells appear in the planula only after its maturation. However, they disappear after planula settlement. For the first time, we show that neural cells are present in the coenosarc of the hydroid colony. We also trace the process of neural net formation during the development of a new shoot internode of the G. loveni colony.
Journal: Zoology - Volume 116, Issue 1, February 2013, Pages 9–19