Linked Life Data

16664996

Source:http://linkedlifedata.com/resource/pubmed/id/16664996

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-6-29
pubmed:abstractText
In vitro assimilate uptake and metabolism were evaluated in embryos of known age isolated from seeds at mid-podfilling through physiological maturity. The capacity of isolated Wye soybean embryos to take up exogenous [(14)C]sucrose dropped nearly 4-fold in less than 1 week at incipient cotyledon yellowing. This drop in rate of sucrose uptake coincided with cessation of seed growth as well as rapid decline in leaf photosynthetic rate that preceded leaf yellowing. Conversely, the rate of [(3)H]glutamine uptake by cotyledons increased as they yellowed. Yellow cotyledons also rapidly converted exogenous [(3)H]glutamine to ethanolinsoluble components, but converted little exogenous [(14)C]sucrose to ethanol-insoluble components, primarily because of greatly reduced sucrose uptake. Sustained import and metabolism of amino acids remobilized from senescing leaves may prolong seed growth beyond loss of photosynthetic competency and sucrose availability.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
222-5
pubmed:dateRevised
2010-9-15
pubmed:year
1986
pubmed:articleTitle
Cessation of assimilate uptake in maturing soybean seeds.
pubmed:affiliation
Central Research and Development Department, Experimental Station, E. I. Du Pont de Nemours & Company, Wilmington, Delaware 19898.
pubmed:publicationType
Journal Article