Linked Life Data

16660729

Source:http://linkedlifedata.com/resource/pubmed/id/16660729

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-6-29
pubmed:abstractText
The temperature limits of the order-disorder transition, and the Arrhenius activation energy of succinate oxidase activity for mitochondria of Jerusalem artichoke (Helianthus tuberosus L.) tubers were determined from the initiation to the termination of dormancy. The temperature limits for the transition at the initiation of dormancy were 25 and 3 C. These changed to 9 and -5 C at mid-dormancy and returned to 25 and 2 C at the termination of dormancy. The Arrhenius activation energy measured in the temperature range above the transition was 35 kilojoules per mole at middormancy and decreased to 17 kilojoules per mole at the termination of dormancy when sprouting was evident. The coincidence of the changes in membrane structure and function with dormancy suggests that artichokes possess a mechanism for regulating membrane lipid structure so that cellular integrity of tuber tissue is maintained even when the tubers are exposed to low temperatures.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
363-6
pubmed:dateRevised
2010-9-15
pubmed:year
1979
pubmed:articleTitle
Seasonal Changes in the Structure and Function of Mitochondrial Membranes of Artichoke Tubers: A Requisite for Surviving Low Temperatures during Dormancy.
pubmed:affiliation
Plant Physiology Unit, CSIRO Division of Food Research and School of Biological Sciences, Macquarie University, North Ryde, N.S.W. 2113, Australia.
pubmed:publicationType
Journal Article