291631A

291631A
Caption: Green bean pod parenchyma cells and seed (Phaseolus vulgaris; Blue Lake variety). Shown here is a fresh cross section through a green string bean pod revealing a bean seed surrounded by parenchyma cell tissue. The been pod tissue is composed of inner and outer parenchyma cells. The outer parenchyma cells have large substomatal and intercellular spaces surrounded by a thick-wall hypodermis. Cells of the outer parenchyma contain numerous starch granules and are thicker walled than the inner parenchyma cells. The inner parenchyma cells are thin-walled and form a compact, succulent tissue with only small intercellular spaces. They contain some starch granules and they compose the inner bean pod tissue that surrounds the bean seeds.
Magnification*: x6
Type: SEM
Copyright 2010 Dennis Kunkel Microscopy, Inc.
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