Sammanfattning

The ultrastructure of three parts (endosperm, rootlets and cotyledons) of aged seeds of Pinus sylvestris L. has been studied. In dry seeds no clear differences resulting from ageing are seen as compared with resting living cells, but during imbibition clear differences are evident. Inhibition of development of the DNA containing structures, mitochondria and plastids, was the first indication of senescence. Lipolysis usually preceded proteolysis, in contrast to the course of events in living cells.

Nyckelord

ultrastructure; seeds; Pinus sylvestris L.; senescence

Publicerad i

Studia Forestalia Suecica
1974,
ISBN: 91-38-02082-3
Utgivare: Skogshögskolan

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/125487