Cytochemical localization of lipases during spore germination from Bryum capillare.

Abstract:

:In the oil containing spores of Bryum capillare, lipid breakdown occurs within three days after sowing. The periods of activity of acid, neutral and alkaline lipases are coincident. They start at the first day after sowing the spores. After 3 days of germination, when storage fats forming large globules are mobilised no lipase activity could be detected any longer in the glyoxysomes. Acid lipase is preferentially located in spherosomal membrane but is also present at the glyoxysomal membrane. Alkaline lipase is specifically located in the glyoxysomes and mitochondria. A cooperation presumably exists between acid and alkaline lipases in the hydrolysis of monoglycerides at the glyoxysomal level. Neutral lipase activity is localized at the spherosomal membrane, in the endoplasmic reticulum and in dictyosomes. It is absent from glyoxysomes.

journal_name

Eur J Cell Biol

authors

Carrapiço F,Salomé M,Pais S

subject

Has Abstract

pub_date

1983-03-01 00:00:00

pages

42-6

issue

1

eissn

0171-9335

issn

1618-1298

journal_volume

30

pub_type

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