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Ultrastructure of Starch Grain Breakdown in Cotyledon Cells of Germinating Lentil Seeds
Author(s) -
Revilla M. A.,
Fernández Tárrago J.
Publication year - 1986
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19860381105
Subject(s) - germination , starch , cotyledon , ultrastructure , parenchyma , cytoplasm , botany , chemistry , biology , food science , biochemistry
Fine structural changes associated with the breakdown of starch grains in the storage parenchyma cells of the cotyledons of Lens culinaris seeds during germination are described. In the initial germination phases each starch grain is found inside a double membrane. In more advanced states of germination (8–12 days) the starch grains show erosion from within, leading to the formation of a central cavity surrounded by irregular starch fragments. During this process the starch grain maintains its external shape. Following this it was possible to observe starch fragments dispersed throughout the cytoplasm.