The distribution of Na+, K+ and glycinebetaine in Salicornia bigelovii

Abstract

Stems of young actively growing Salicornia bigelovii were dissected into the three major tissue layers: vascular, spongy mesophyll and palisade. Each layer was analysed for chlorophyll, ash (salt), protein and glycinebetaine content. When glycinebetaine content was based on protein content, the vascular and spongy mesophyll layers had nearly identical values. Correction for probable RuBP carboxylase content in the palisade layer gave a glycinebetaine/protein ratio similar to that of the other tissues. All three tissue layers were found to contain significant amounts of salt. © 1985 Oxford University Press.