Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1985 Mar 15;226(3):679-84.
doi: 10.1042/bj2260679.

Effect of sucrose starvation on sycamore (Acer pseudoplatanus) cell carbohydrate and Pi status

F Rébeillé, R Bligny, J B Martin, R Douce

Effect of sucrose starvation on sycamore (Acer pseudoplatanus) cell carbohydrate and Pi status

F Rébeillé et al. Biochem J. .

Abstract

The mobilization of stored carbohydrates during sucrose starvation was studied with sycamore (Acer pseudoplatanus) cells. When sucrose was omitted from the nutrient medium, the intracellular sucrose pool decreased rapidly during the first hours of the experiment, whereas the starch content remained practically unchanged. After 10h of sucrose starvation, starch hydrolysis replaced sucrose breakdown. From this moment, the phosphate-ester pool and respiration rate decreased with time. Conversely, the intracellular Pi concentration increased. 31P n.m.r. of intact sycamore cells indicated that, under these conditions, most of the Pi accumulated in the vacuole. These results strongly suggest that starch breakdown, in contrast with sucrose hydrolysis, is not rapid enough to maintain a high cellular metabolism.

PubMed Disclaimer

References

    1. J Biol Chem. 1953 Jun;202(2):675-85 - PubMed
    1. Plant Physiol. 1977 Mar;59(3):502-5 - PubMed
    1. Plant Physiol. 1979 Jan;63(1):109-13 - PubMed
    1. Plant Physiol. 1977 Jun;59(6):1146-55 - PubMed
    1. Arch Biochem Biophys. 1982 Dec;219(2):371-8 - PubMed

Publication types