| RefNo | EC/1981/27 |
| Previous numbers | Cert XXI, 27 |
| Level | Item |
| Title | Maddrell, Simon Hugh Piper: certificate of election to the Royal Society |
| Date | 1979 |
| Description | Citation typed |
| Citation | Has made distinguished and elegant contributions to the study of the excretory system of insects, devising improved techniques for measuring secretory activity of Malpighian tubules in vitro. He discovered the existence of a diuretic hormone in Rhodnius, derived from neurosecretory cells in the thoracic ganglia and liberated commonly by exocytosis, from axon terminations along the abdominal nerves. He found that many insecticides induce release of diuretic hormone and this may be one reason for their effectiveness. Neurohormones were also shown to control the plasticity of the cuticle. Maddrell's methods are being widely employed in the search for diuretic hormones in vertebrates. |
| AccessStatus | Closed |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA4321 | Maddrell; Simon Hugh Piper (1937-2020) | 1937-2020 |