手机知网 App
24小时专家级知识服务
打 开
生物学
Comparative studies on storage cells in tardigrades during starvation and anhydrobiosis
<正> The impact of starvation and anhydrobiosis on the number and size of the storage cells in the tardigrade species Milnesiumtardigradum, Paramacrobiotus tonollii and Macrobiolus sapiens was investigated to gain more insight on the energeticside of anhydrobiosis. Storage cells are free floating cells within the body cavity of tardigrades and are presumed to store and releaseenergy in form of glycogen, protein and fat to maintain a constant nutrient regime for the other tissues. The body size of theanimals was not correlated with the size of the storage cells, however, M. tardigradum the largest species analysed also had thelargest storage cells. A reduction in the size of the storage cells is apparent in all three species after seven days of starvation. Aseven-day period of anhydrobiosis leads to a decrease in cell size in M. tardigradum but not in P. tonollii and M. sapiens. AlthoughM. sapiens was raised on green algae, and M. tardigradum and P. tonollii were fed with rotifers and nematodes this differencein nourishment was not reflected in the response of the storage cells to anhydrobiosis
0 0
手机阅读本文
下载APP 手机查看本文
Current Zoology
2010年02期

搜 索