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Query: UMLS:C0015672 (
fatigue
)
51,768
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Experiments were carried out to clarify problems encountered in measuring metabolic and storage pool sizes of nitrate in wheat leaf sections with an in vivo
nitrate reductase
assay. The leaf sections were from seedlings grown on 15 millimolar nitrate. Data obtained show that the cessation of nitrite accumulation, used as an index of the active nitrate pool size, could be caused by lack of anaerobiosis in the assay system, the
lack of energy
for nitrate reduction, or a loss of
nitrate reductase
activity. Availability of nitrate was never the limiting factor in this system. It is concluded that pool sizes of nitrate cannot be determined in wheat leaves with the in vivo assays employed.
...
PMID:Some New Aspects of the in Vivo Assay for Nitrate Reductase in Wheat (Triticum aestivum L.) Leaves: I. REEVALUATION OF NITRATE POOL SIZES. 1666 Nov 37
