Journal article

Sodium exclusion mechanisms at the root surface of two maize cultivars


Authors listSchubert, S; Läuchli, A

Publication year1990

Pages205-209

JournalPlant and Soil

Volume number123

Issue number2

ISSN0032-079X

DOI Linkhttps://doi.org/10.1007/BF00011269

PublisherSpringer


Abstract

Sodium exclusion at the root surface of intact plants was investigated in two maize cultivars (Zea mays L. cv. Pioneer 3906 and cv. DeKalb XL75). The strong sodium exclusion by Pioneer 3906 relative to DeKalb XL75 was not caused by larger efflux rates. In contrast, this cultivar showed reduced influx rates resulting in about half the net uptake in comparison with DeKalb XL75. It is concluded that the cultivar difference in sodium exclusion at the root surface is based on a relatively low passive sodium permeability of the epidermal and cortex plasmalemma of Pioneer 3906. For both cultivars, the flux ratio equation indicated an active component of sodium efflux.




Authors/Editors




Citation Styles

Harvard Citation styleSchubert, S. and Läuchli, A. (1990) Sodium exclusion mechanisms at the root surface of two maize cultivars, Plant and Soil, 123(2), pp. 205-209. https://doi.org/10.1007/BF00011269

APA Citation styleSchubert, S., & Läuchli, A. (1990). Sodium exclusion mechanisms at the root surface of two maize cultivars. Plant and Soil. 123(2), 205-209. https://doi.org/10.1007/BF00011269


Last updated on 2025-21-05 at 16:15