Linked Life Data

11542205

Source:http://linkedlifedata.com/resource/pubmed/id/11542205

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
233
pubmed:dateCreated
1999-9-9
pubmed:abstractText
Net uptake of NO3- by non-nodulated soybean plants [Glycine max (L.) Merr. cv. Ransom] growing in flowing hydroponic culture was measured daily during a 63 d period of reproductive development between the first florally inductive photoperiod and [unknown word] seed growth. Removal of NO3- from a replenished solution containing 1.0 mol m-3 NO3- was determined by ion chromatography. Uptake of NO3- continued throughout reproductive development. The net uptake rate of NO3- cycled between maxima and minima with a periodicity of oscillation of 3 to 7 d during the floral stage and about 6 d during the fruiting stage. Coupled with increasing concentrations of carbon and C : N ratios in tissues, the oscillations in net uptake rates of NO3- are evidence that the demand for carbohydrate by reproductive organs is contingent on the availability of nitrogen in the shoot pool rather than that the demand for nitrogen follows the flux of carbohydrate into reproductive tissues.
pubmed:keyword
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-0957
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
1579-84
pubmed:dateRevised
2007-8-1
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Cyclic variations in nitrogen uptake rate in soybean plants: uptake during reproductive growth.
pubmed:affiliation
Department of Plant Sciences, The University of Manitoba, Winnipeg, Canada.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't