Possible Control of Maize Leaf Sucrose-Phosphate Synthase Activity by Light Modulation
Open Access
- 1 November 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 79 (3), 695-698
- https://doi.org/10.1104/pp.79.3.695
Abstract
The rate of auxin transport in sunflower hypocotyls (Helianthus annuus L. cv `Russian mammoth') or corn coleoptiles (Zea mays L. cv `WF9 × 38') was less in seedlings grown in Ca-deficient medium than in controls. The rate of IAA transport depended on the concentration of Ca in the root medium up to 1 millimolar. Further increases in auxin transport were observed when the isolated segments were incubated in medium containing up to 30 millimolar Ca. We suggest that the rate of auxin transport in plant tissue is dependent on the pool of ionic Ca in the extracellular space.This publication has 10 references indexed in Scilit:
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