𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Nocturnal water storage in plants having Crassulacean acid metabolism

✍ Scribed by U. Lüttge

Book ID
104759085
Publisher
Springer-Verlag
Year
1986
Tongue
English
Weight
226 KB
Volume
168
Category
Article
ISSN
0032-0935

No coin nor oath required. For personal study only.

✦ Synopsis

Measurements of water uptake and transpiration, during the dark period of plants having Crassulacean acid metabolism (CAM) allow calculation of leaf-volume changes (ΔV). Nocturnal leaf-volume changes of CAM plants have also been reported in the literature on the basis of waterdisplacement measurements. A third way of estimation is from measurements of turgor changes and cellular water-storage capacity using the pressure probe, cytomorphometry and the Scholander pressure chamber. An extension of the interpretation of results reported in the literature shows that for leaf succulent CAM plants the three different approaches give similar values of ΔV ranging between 2.3 and 10.7% (v/v). It is evident that nocturnal malic-acid accumulation osmotically drives significant water storage in CAM leaf tissue.

📜 SIMILAR VOLUMES

Oxygen and carbon dioxide exchanges in c
Oxygen and carbon dioxide exchanges in crassulacean-acid-metabolism-plants
✍ M. André; D. A. Thomas; D. J. Willert; A. Gerbaud 📂 Article 📅 1979 🏛 Springer-Verlag 🌐 English ⚖ 329 KB

The 24 h O2 uptake and release together with the CO2 balance have been measured in two CAM plants, one a non-succulent Sempervivum grandifolium, the other a succulent Prenia sladeniana. The O2 uptake was estimated by the use of (18)O2. It was found that the mean hourly O2 uptake in the light was 7 t

Day-night changes in the levels of adeni
Day-night changes in the levels of adenine nucleotides, phosphoenolpyruvate and inorganic pyrophosphate in leaves of plants having Crassulacean acid metabolism
✍ L. Pistelli; G. Marigo; E. Ball; U. Lüttge 📂 Article 📅 1987 🏛 Springer-Verlag 🌐 English ⚖ 875 KB

The levels of phosphorylated compounds studied during the dark period of Crassulacean acid metabolism (CAM) in Kalanchoë leaves showed increases for ATP and pyrophosphate and decreases for ADP, AMP and phosphenolpyruvate; levels of inorganic phosphate remained constant. Changes in adenylate levels a