通过观察不同饥饿胁迫处理对三疣梭子蟹(Portunus trituberculatus)溞状Ⅰ期幼体变态和发育的影响,研究了其"营养储存饱和点"(the point of reserve saturation,PRS)和"不可恢复点"(the point of no return,PNR)现...通过观察不同饥饿胁迫处理对三疣梭子蟹(Portunus trituberculatus)溞状Ⅰ期幼体变态和发育的影响,研究了其"营养储存饱和点"(the point of reserve saturation,PRS)和"不可恢复点"(the point of no return,PNR)现象的发生情况。结果表明:以轮虫为饵料,三疣梭子蟹溞状Ⅰ期幼体(ZⅠ)在前期投喂后期饥饿的条件下,随着前期摄食时间的增加,幼体变态率和发育速度呈上升趋势,50%营养储存饱和点(PRS50)出现在47.5 h,100%营养储存饱和点(PRS100)出现在72 h;在前期饥饿后期投喂的条件下,随着前期饥饿时间的增加,幼体变态率和发育速度呈下降趋势,50%不可恢复点(PNR50)出现在39 h,100%不可恢复点(PNR100)出现在56 h。展开更多
Gqα proteins of one thousand pairs of compound eyes of Macrobrachium rosnbergii in zoaea I～IV were isolated with SDS-PAGE electrophoresis , gel and protein maps photoed and the percent of protein was analyzed by Tan...Gqα proteins of one thousand pairs of compound eyes of Macrobrachium rosnbergii in zoaea I～IV were isolated with SDS-PAGE electrophoresis , gel and protein maps photoed and the percent of protein was analyzed by Tanon GIS gel image disposal system. The results showed that the amount of Gqα protein of compound eyes increased gradually from zoaea I to IV, the percent of the Gqαin zoaea I～IV was 3.499%,3.540%,3.558% and 3.565% respectively. However, the percent of the protein in zoae IV and zoae I was significantly different (pair t test p <0.05). Our research verified that the function of compound eyes perfected gradually with individual development in zoaea of Macrobrachium rosnbergii.展开更多
文摘通过观察不同饥饿胁迫处理对三疣梭子蟹(Portunus trituberculatus)溞状Ⅰ期幼体变态和发育的影响,研究了其"营养储存饱和点"(the point of reserve saturation,PRS)和"不可恢复点"(the point of no return,PNR)现象的发生情况。结果表明:以轮虫为饵料,三疣梭子蟹溞状Ⅰ期幼体(ZⅠ)在前期投喂后期饥饿的条件下,随着前期摄食时间的增加,幼体变态率和发育速度呈上升趋势,50%营养储存饱和点(PRS50)出现在47.5 h,100%营养储存饱和点(PRS100)出现在72 h;在前期饥饿后期投喂的条件下,随着前期饥饿时间的增加,幼体变态率和发育速度呈下降趋势,50%不可恢复点(PNR50)出现在39 h,100%不可恢复点(PNR100)出现在56 h。
文摘Gqα proteins of one thousand pairs of compound eyes of Macrobrachium rosnbergii in zoaea I～IV were isolated with SDS-PAGE electrophoresis , gel and protein maps photoed and the percent of protein was analyzed by Tanon GIS gel image disposal system. The results showed that the amount of Gqα protein of compound eyes increased gradually from zoaea I to IV, the percent of the Gqαin zoaea I～IV was 3.499%,3.540%,3.558% and 3.565% respectively. However, the percent of the protein in zoae IV and zoae I was significantly different (pair t test p <0.05). Our research verified that the function of compound eyes perfected gradually with individual development in zoaea of Macrobrachium rosnbergii.
