Document Detail

Phosphorus metabolism of germinating oat seeds.
MedLine Citation:
PMID:  16656424     Owner:  NLM     Status:  PubMed-not-MEDLINE    
An investigation has been made of the changes in the major phosphorus containing substances in Avena sativa during the first 8 days of dark germination. The endosperm, roots, and shoots were analyzed separately for acid soluble-P, phytic acid-P, inorganic-P, lipid-P, nucleic acid-P, and protein-P. Phytic acid-P comprised 53% of the total seed phosphate, while the sum of lipid-P, nucleic acid-P and protein-P comprised 27% of the seed phosphate. All these reserve phosphate materials were mobilized and transferred to the developing axis. The phosphate from phytic acid appeared almost entirely as inorganic-P in the roots and shoots. A close stoichiometry existed between the rate of loss of nucleic acid-P from the endosperm and its rate of appearance in the roots and shoots. Thus no net synthesis of nucleic acid occurred during the 8-day period examined. The rate of synthesis of lipid-P in the roots and shoots exceeded its rate of disappearance from the endosperm during the first 4 days of germination. Protein-P increased in the roots and shoots during germination, but at a rate less than its rate of disappearance from the endosperm. The results provide a relatively complete description of the over-all aspects of phosphorus metabolism associated with germination of oats.
J R Hall; T K Hodges
Related Documents :
3885844 - Oxygen- and time-dependent effects of antibiotics and selected mitochondrial inhibitors...
2896234 - Inhibition of nucleic acid synthesis in p-388 lymphocytic leukemia tumor cells by helen...
14058944 - Accumulation of inorganic polyphosphate in aerobacter aerogenes. i. relationship to gro...
7341974 - Significance of metabolic activation and binding to nucleic acids of aminostilbene deri...
23772824 - Ph-responsive biodegradable assemblies containing tunable phenyl-substituted vinyl ethe...
24709564 - Mammalian-specific sequences in pou3f2 contribute to maternal behaviour.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant physiology     Volume:  41     ISSN:  0032-0889     ISO Abbreviation:  Plant Physiol.     Publication Date:  1966 Nov 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-06-29     Revised Date:  2010-09-15    
Medline Journal Info:
Nlm Unique ID:  0401224     Medline TA:  Plant Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1459-64     Citation Subset:  -    
Department of Horticulture, University of Illinois, Urbana.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Changes in Some Nitrogenous Components During the Germination of Pea Seeds.
Next Document:  Fatty Acid Accumulation in Maturing Flaxseeds as Influenced by Environment.