二磷酸甘油酸和植酸作为吸血昆虫长红猎蝽的取食刺激物。

Diphosphoglycerate and phytic acid as feeding stimulants for the blood-feeding bug Rhodnius prolixus.

Smith J J, Friend W G

Comp Biochem Physiol A Comp Physiol. 1982;72(1):133-6. doi: 10.1016/0300-9629(82)90021-4.

Abstract

The compounds 2,3-diphosphoglycerate (DPG), phytic acid (PA) and adenosine triphosphate (ATP) were tested as gorging stimulants for Rhodnius prolixus. All three are potent phagostimulants, with ED50 values less than 10 microM; in contrast, only ATP stimulates the black fly Simulium venustum, with an ED50 of 13 microM. 2. Equimolar mixtures of DPG and ATP showed pronounced synergism, causing 75% of test R. prolixus to gorge at a dose of 0.3 microM. 3. The response to DPG and PA supports the hypothesis that R. prolixus detects blood during biting by tasting signal chemicals released from red blood cells.

摘要

对化合物2,3 - 二磷酸甘油酸（DPG）、植酸（PA）和三磷酸腺苷（ATP）作为红带锥蝽（Rhodnius prolixus）饱腹刺激物进行了测试。这三种物质都是强效的摄食刺激物，半数有效剂量（ED50）值小于10微摩尔；相比之下，只有ATP能刺激黑蝇（Simulium venustum），其ED50为13微摩尔。2. DPG和ATP的等摩尔混合物表现出明显的协同作用，在0.3微摩尔的剂量下，导致75%的受试红带锥蝽饱腹。3. 对DPG和PA的反应支持了这样一种假说，即红带锥蝽在叮咬时通过品尝从红细胞释放的信号化学物质来检测血液。