scholarly journals Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland

Silva Fennica ◽  
2004 ◽  
Vol 38 (3) ◽  
Author(s):  
Mika Nieminen ◽  
Timo Penttilä
Keyword(s):  
Organic Phosphorus ◽  
Phosphorus Fractions ◽  
Inorganic And Organic

INCORPORATION OF RADIOACTIVE PHOSPHATE INTO NON-NUCLEOTIDE PROTEIN-BOUND PHOSPHORUS FRACTIONS OF RESPIRING CAT BRAIN SLICES

1954 ◽  
Vol 32 (1) ◽  
pp. 504-514
Author(s):  
Muriel Findlay ◽  
K. P. Strickland ◽  
R. J. Rossiter
Keyword(s):  
Inorganic Phosphate ◽  
Organic Phosphorus ◽  
Brain Slices ◽  
Phosphorus Fractions ◽  
Metabolic Inhibitors ◽  
Lipid Phosphorus ◽  
Wide Range ◽  
Cat Brain

Slices of cat brain respiring in a Krebs–Ringer bicarbonate medium were found to incorporate inorganic phosphate labelled with P32 into two non-nucleotide protein-bound phosphorus fractions, which are referred to as the residue organic phosphorus (ROP) and the "phosphoprotein" (PP), respectively. The addition of glucose or mannose to the medium increased the incorporation into both fractions. The addition of fructose, galactose, pyruvate, lactate, succinate, or L-glutamate failed to increase the incorporation into either fraction.Anaerobic conditions, homogenization of the tissue, or the addition of a wide range of metabolic inhibitors (cyanide, azide, iodoacetate, fluoride, nembutal, malononitrile, chloretone) inhibited the incorporation. The incorporation was also inhibited by 2,4-dinitrophenol in concentrations that do not inhibit oxygen consumption.These results are compared and contrasted with previous findings on the incorporation of P32 into the lipid phosphorus and pentosenucleic acid of brain slices.

Sorption of dissolved inorganic and organic phosphorus compounds onto iron-doped ceramic sand

2013 ◽  
Vol 58 ◽  
pp. 286-295 ◽  
Author(s):  
Zhengfang Wang ◽  
Mo Shi ◽  
Jihua Li ◽  
Liang Zhou ◽  
Zhongwei Wang ◽  
...  
Keyword(s):  
Organic Phosphorus ◽  
Phosphorus Compounds ◽  
Iron Doped ◽  
Inorganic And Organic

Phosphorus changes during the leaching and decomposition of hayed-off pasture plants

1969 ◽  
Vol 20 (4) ◽  
pp. 653 ◽  
Author(s):  
OL Jones ◽  
SM Bromfield
Keyword(s):  
Microbial Activity ◽  
Inorganic Phosphate ◽  
Organic Phosphorus ◽  
The Other ◽  
Other Hand ◽  
Dry Conditions ◽  
Pasture Plants ◽  
Inorganic And Organic

Ground samples of hayed-off pasture plants were decomposed in the laboratory under continuously moist, and intermittently moist and dry, conditions. During the course of decomposition they were leached at different frequencies and the resulting changes in inorganic and organic phosphorus measured. The dissolution of superphosphate and its conversion to organic phosphorus were also studied under some of these conditions.Inorganic phosphate was readily leached from the samples when microbes were inhibited. Microbial activity, on the other hand, largely prevented the loss of inorganic phosphate by leaching from a phalaris sample over a period of 3 months. Intermittent drying increased the amount of phosphate leached from decomposing plants but the leaching frequencies examined had little effect. The percentage of the phosphorus leached from plants varied with the type of material. In all cases less than half was recovered as inorganic phosphate, even after decomposition and leaching for 6 months. When superphosphate granules were leached in the presence of decomposing plants the conversion of fertilizer phosphate to organic phosphorus was small, but the dissolution of phosphate was sometimes retarded. The recycling of phosphate in hayed-off pastures is discussed in the light of these results.

INCORPORATION OF RADIOACTIVE PHOSPHATE INTO NON-NUCLEOTIDE PROTEIN-BOUND PHOSPHORUS FRACTIONS OF RESPIRING CAT BRAIN SLICES

1954 ◽  
Vol 32 (5) ◽  
pp. 504-514 ◽  
Author(s):  
Muriel Findlay ◽  
K. P. Strickland ◽  
R. J. Rossiter
Keyword(s):  
Inorganic Phosphate ◽  
Organic Phosphorus ◽  
Brain Slices ◽  
Phosphorus Fractions ◽  
Metabolic Inhibitors ◽  
Lipid Phosphorus ◽  
Wide Range ◽  
Cat Brain

Slices of cat brain respiring in a Krebs–Ringer bicarbonate medium were found to incorporate inorganic phosphate labelled with P32 into two non-nucleotide protein-bound phosphorus fractions, which are referred to as the residue organic phosphorus (ROP) and the "phosphoprotein" (PP), respectively. The addition of glucose or mannose to the medium increased the incorporation into both fractions. The addition of fructose, galactose, pyruvate, lactate, succinate, or L-glutamate failed to increase the incorporation into either fraction.Anaerobic conditions, homogenization of the tissue, or the addition of a wide range of metabolic inhibitors (cyanide, azide, iodoacetate, fluoride, nembutal, malononitrile, chloretone) inhibited the incorporation. The incorporation was also inhibited by 2,4-dinitrophenol in concentrations that do not inhibit oxygen consumption.These results are compared and contrasted with previous findings on the incorporation of P32 into the lipid phosphorus and pentosenucleic acid of brain slices.

Inorganic and organic phosphorus pools in earthworm casts (Glossoscolecidae) and a Brazilian rainforest Oxisol

2006 ◽  
Vol 38 (3) ◽  
pp. 553-560 ◽  
Author(s):  
Christienne N. Kuczak ◽  
Erick C.M. Fernandes ◽  
Johannes Lehmann ◽  
Marco A. Rondon ◽  
Flavio J. Luizão
Keyword(s):  
Organic Phosphorus ◽  
Earthworm Casts ◽  
Phosphorus Pools ◽  
Inorganic And Organic
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