Journal article

Publication year: 1985

Pages: 285-289

Journal: Physiologia Plantarum

Volume number: 64

Issue number: 3

ISSN: 0031-9317

DOI Link: https://doi.org/10.1111/j.1399-3054.1985.tb03341.x

Publisher: Wiley

Abstract: 

The roles of phytohormones and fusicoccin in H+ extrusion by isolated protoplasts from rape leaves (Brassica napus L. cv. Belinda) were investigated and compared to results obtained with leaf segments of the same plants. Net H+ release by protoplasts, which was at least partly due to ATPase activity, was enhanced by 10 μM indole‐3‐acetic acid and reduced by 20 μM abscisic acid, whereas fusicoccin (10 μM), brassinosteroid (3 μM), kinetin (20 μM) and gibberellic acid (10 μM) had no effect. Hormone effects and H+ release were not detectable with leaf segments from the same plants. However, using field‐grown plants, indole‐3‐acetic acid and especially fusicoccin stimulated the acidification of the external medium by leaf segments. Hormonecontrolled H+ release by leaf cells is interpreted as the first step in acid‐triggered and turgor‐regulated cell growth.

Harvard Citation style: Schubert, S. and Matzke, H. (1985) Influence of phytohormones and other effectors on proton extrusion by isolated protoplasts from rape leaves, Physiologia Plantarum, 64(3), pp. 285-289. https://doi.org/10.1111/j.1399-3054.1985.tb03341.x

APA Citation style: Schubert, S., & Matzke, H. (1985). Influence of phytohormones and other effectors on proton extrusion by isolated protoplasts from rape leaves. Physiologia Plantarum. 64(3), 285-289. https://doi.org/10.1111/j.1399-3054.1985.tb03341.x