The Scientific World Journal / 2012 / Article / Fig 2

Research Article

Identification of Xylem Occlusions Occurring in Cut Clematis (Clematis L., fam. Ranunculaceae Juss.) Stems during Their Vase Life

Figure 2

Ultrastructural identification of xylem occlusions in stems of Clematis “Solidarność” (a) empty vessel, control, (b) young tylose, stems kept in distilled water, date I, (c) mature tyloses, stems kept in distilled water, date II, (d) young tylose, stems kept in 8HQC with 2% sucrose, date I, (e) and (f) mature tylose, stems kept in 8HQC with 2% sucrose, date II, (g) bacteria in blocked vessels, stems kept in 8HQC with 2% sucrose, date II. Vl: vessel lumen, : cell wall, *: amyloplast, →: degrading nuclei, : tylose cell membrane, P: plastid, ic: intact cytoplasm, v: vacuole, : mitochondria, ↑: lipid bodies, b: bacteria, Control: term 0, Term I: after 7 days of postharvest life (wilting of flowers kept in distilled water), Term II: and after 12 days, when wilting and loss of a decorative value occurred in flowers placed into the preservative.
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