Untersuchungen zur Physiologie der Carnivoren-Drüsen

✍ Scribed by Ulrich Lüttge

• Publisher: Springer-Verlag
• Year: 1966
• Tongue: English
• Weight: 801 KB
• Volume: 68
• Category: Article
• ISSN: 0032-0935
• DOI: 10.1007/bf00385370

✦ Synopsis

The transport of chloride in isolated tissue from Nepenthes pitchers was investigated using 3~Cl-, an Aminco-Cotlove ehloride-titrator for the determinations of C1-concentrations, and KCN and AsOj-as metabolic inhibitors.

The tissue was brought in contact with different experimental solutions (: medium). The surface corresponding to the outside of the pitchers was cut with a razor blade to remove the eutinized epidermal layer. At this surface the C1uptake from the medium is a metabolic process which depends on the C1--concentration of the medium in a manner that corresponds to the ~[ICIIAELIS-MENTEN kinetics. The Michaelis-constant of this transport step was 3 • 10 -2 M. The CI-efflux into the medium, however, is a passive process.