Activity ATPases during dormancy breaking in Norway maple (Acer platanoides L.) seeds

Kazimierz Krawiarz, Zofia Szczotka

Abstract


The activity of ATPases was studied in embryo axes and cotyledons of Norway maple seeds stratified at 3oC (dormancy broken) and 15oC (dormancy not broken). The activity of mitochondrial (F. III) and activity connected with all cellular membranes (F. Il) and soluble fraction (F. I) ATPases was investigated. It was found that mitochondrial ATPases are the most active. The activity of all types of ATPases is greater in seeds stratified at 3oC. It increases during seed dormancy breaking, particularly in the case of mitochondrial ATPases. The rise in the activity of mitochondrial and others ATPases in embryo axes of seeds stratified at 3oC is stepwise. In seeds stratified at 15oC ATPase activity generally decreases.

Keywords


Acer platanoides; seeds dormancy; ATPase

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DOI: https://doi.org/10.5586/asbp.2000.015

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Publisher
Polish Botanical Society