Giesy John P, Dickson Gary W
Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, 29801, Aiken, South Carolina, USA.
Oecologia. 1981 May;49(1):1-7. doi: 10.1007/BF00376890.
Concentrations of phosphoadenylate nucleotides and the adenylate energy charge ((ATP+1/2ADP)/(ATP+ADP+AMP)) have been suggested as sensitive integrating measures of the energy state of organisms. This synoptic study investigated the seasonal and spatial variation of phosphoadenylate concentrations and AEC in two freshwater bivalve molluscs, the paper-shell clam, Anodonta imbecillis and the asian clam, Corbicula fluminea. Concentrations of all three adenylates, as well as the total adenylate concentration and adenylate energy charge of both species varied seasonally. These fluctuations were closely related to reproductive periods in both species. Total adenylate concentrations and ATP concentrations were slightly negatively correlated with shell length in A. imbecillis but the ADP and AMP concentrations and AEC were not significantly correlated with shell length. In C. fluminea the AEC was negatively correlated were positively correlated with shell length. Neither species exhibited significant differences in AEC between two collection locations. When C. fluminea collected from the Savannah River were acclimated and fed in the laboratory their AEC increased significantly.
磷酸腺苷酸核苷酸的浓度以及腺苷酸能荷（(ATP + 1/2ADP)/(ATP + ADP + AMP)）已被认为是衡量生物体能量状态的敏感综合指标。这项综合研究调查了两种淡水双壳贝类软体动物，即纸壳蚌（Anodonta imbecillis）和亚洲蚬（Corbicula fluminea）中磷酸腺苷酸浓度和能荷的季节和空间变化。两种贝类的所有三种腺苷酸的浓度，以及总腺苷酸浓度和腺苷酸能荷都随季节变化。这些波动与两种贝类的繁殖期密切相关。在纸壳蚌中，总腺苷酸浓度和ATP浓度与壳长呈轻微负相关，但ADP和AMP浓度以及能荷与壳长无显著相关性。在亚洲蚬中，能荷与壳长呈负相关，而[此处原文似乎有误，推测可能是其他某种物质浓度与壳长呈正相关]与壳长呈正相关。两种贝类在两个采集地点的能荷均未表现出显著差异。当从萨凡纳河采集的亚洲蚬在实验室中适应环境并喂食后，它们的能荷显著增加。
