Cell walls isolated from pollen of Nicotiana alata germinated in vitro contain glucose and arabinose as the predominant monosaccharides. Methylation analysis and cytochemical studies are consistent with the major polysaccharides being a (1→3)-β-D-glucan (callose) and an arabinan together with small
The chemical composition of extracellular polymers released by cells of tobacco (Nicotiana tabacum L. cv W38) adapted to a medium containing 30% polyethylene glycol 8000 (-28 bar) or 428 millimolar NaCl (-23 bar) was compared to the composition of those released by unadapted cells. Unadapted cells
The relative mass of the cell walls of tobacco (Nicotiana tabacum L.) cells adapted to grow in medium containing 30% polyethylene glycol 8000 or 428 millimolar NaCl was reduced to about 50% of that of the walls of unadapted cells. Cellulose synthesis was inhibited substantially in adapted cells. The
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