A sensitive and versatile chromogenic assay for peroxidase and peroxidase-coupled
reactions is described. The assay is based on the oxidative coupling of 3-methyl-2-…

… viridissima (Muscatine & Lenhoff, 1965), is now used routinely for culturing most of our … of
a bud as a hydra nth (Lenhoff & Loomis, 1957). Feed the hydra to repletion with Artemia nauplii. …

CONCLUSIONS Results obtained with this system indicate its potential as a detector for flow
injection titrimetry. The measurements themselves are time measurements which can be …

… , Brian Johnson and Gloria Lenhoff (daughter of author Howard M. Lenhoff)—attended a …
Lenhoff is professor emeritus of biological sciences at the University of California, Irvine, the …

The line between behavior and physi-ology is tenuous. Although behavior is categorized by
many'scientists as an aspect of physiology, the distinction between them cannot be put off as …

Horseradish peroxidase, assayed with o-phenylenediamine, is irreversibly inactivated when
incubated in phosphate buffer, 100 mmol/L, at pH 5. The inactivation depends on both …

Absolute pitch is reported to occur in 1 out of 10,000 persons, usually those trained in music
before age 6. We demonstrate that the five individuals we tested, who have Williams …

A simple and accurate quantitative assay of the glutathione-activated feeding reflex in Hydra
is described. The results show: (a) There are a limited number of receptor-effector systems, …

A rapid and highly sensitive spectrophotometric assay for lysine decar☐ylase is described. It
is based upon the principle that cadaverine, a product of lysine decar☐ylase, reacts with 2,4,…

… and Lenhoff, 1965) how permit a similar approach using green hydra, thus affording insight
… C1402 for exactly 24 hours, using a procedure described by Muscatine and Lenhoff (1963). …