Weitere Untersuchungen über Beziehungen zwischen Nährstoffversorgung und Oxalsäurebildung im Zuckerrüben- und Mangoldblatt

Scharrer, K.; Jung, J.

doi:10.1002/jpln.19540660102

Cited by 22 publications

(7 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a number of plant species, nitrate as the source of nitrogen as opposed to ammonium lead to a higher oxalate content of the plant (Clark, 1936;Gilbert et al, 1951;Scharrer and Jung, 1954;Grütz, 1956;Becker, 1964;Ehrendorfer, 1964a;Joy, 1964;Knauer and Simon, 1968;Kick and Massen, 1973;Kpodar et al, 1978). Some representative data are summarized in Table I.…”

mentioning

confidence: 99%

“…A positive correlation between calcium content of the growth medium and oxalate formation (Olsen, 1939;Gilbert et al, 1951;Scharrer and Jung, 1954;Grütz, 1956;Rasmussen and Smith, 1961;Bornkamm, 1965;Zindler-Frank, 1975) appears to be related to processes involving chemical regulation: Uptake of calcium leads to calcium oxalate precipitation, altering the equilibrium of oxalate synthesis and/or breakdown in the plant. In some investigations on plants with a high level of water-soluble oxalates (Chenopodiaceae and Polygonaceae),.…”

mentioning

confidence: 99%

“…Increasing levels of nitrate fertilization result in an increased oxalate accumulation, while higher levels of ammonium scarcely influence accumulation (Scharrer and Jung, 1954;Becker, 1964;Ehrendorfer, 1964a;Nicolaisen and'Kuhlen, 1967). Griitz (1956) found decreased oxalate accumulation in spinach leaves with increased ammonium nitrate fertilization.…”

mentioning

confidence: 99%

“…Increased levels of potassium (and sodium) usually lead to a decreased total oxalate but an increased water-soluble oxalate concentration (Karimi and Ungar, 1986). At very high soil potassium levels or when calcium levels are low and are not interfering with potassium uptake, oxalate accumulation will, however, increase (Scharrer and Jung, 1954;Griitz, 1956;Ehrendorfer, 1964b).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Oxalate in crop plants

Libert¹,

Franceschi²

1987

J. Agric. Food Chem.

359

240

View full text Add to dashboard Cite

Oxalate is produced and accumulated in many crop plants and pasture weeds. Although oxalate can be a major constituent of plants, important aspects of its biosynthesis, accumulation, and catabolism are unresolved. A major precursor of oxalate is glyoxylate. Oxalate accumulators can also form oxalate by C2/C3 cleavage of ascorbic acid. Plant oxalate content is affected by nitrogen source, inorganic ion availability, and other environmental factors. Ontogenetic stage and genotype are also important factors. Oxalate may play a role in ion balance and osmoregulation. Oxalate oxidase and oxalate decarboxylase are present in some plants, and oxalate can be catabolized and the carbon recycled. Oxalate accumulation Pennisetum americanum 1.2-2.2 G Goswami et al., 1970 P. americanum, hay 1.0-2.8 G Sing et al., 1980 P. americanum, hay 0.3-1.4 1.5-2.3 Lai et al., 1966d P. americanum X purp, hay 0.2-2.3 1.3-3.0 Lai et al., 1966d P. purpureum, hay 2.4-2.6 3.3-3.6 Lai et al., 1966d P. purpureum, hay 3.3

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Oxalate in crop plants

Libert¹,

Franceschi²

1987

J. Agric. Food Chem.

359

240

View full text Add to dashboard Cite

show abstract

“…In an attempt to explain a physiological role of calcium oxalate and free oxalic acid, early investigators Amar (1904), Stuhl (1920), Muller (as cited by Zindler- Frank, 1975) thought of excess calcium uptake as harmful and the oxalate necessary to tie it up. Later studies (Olsen, 1939;Scharrer and Jung, 1954;Âckermann, 1958) for the induction of oxalate synthesis. In earlier studies, she found that the number of cells which differentiate into Idloblasts is dependent on the amount of nutritional calcium (Frank, 1972) and that inhibition of glycolate oxidase decreases the number of idloblasts (Zindler- Frank, 1974).…”

Section: Oxalic Acidmentioning

confidence: 99%

The development, physiology, and function of selected plant calcium oxalate crystal idioblasts

Kausch¹

View full text Add to dashboard Cite

Oxalic acid is a dicarboxylic acid [(COOH)^], produced in plants through at least five biochemical pathways (Hodgkinson, 1977; Franceschi and Homer, 1980a). Oxalate has been reported to originate in some plants via enzymatic cleavage of oxaloacetate (Chang and Beevers, 1968) and/or ascorbate metabolism (Wagner and Loewus, 1973). However, it is generally accepted that the major intermediate precursors of oxalate in higher plants are glycolate and glyoxalate (Kpodar et al., 1978). These pre cursors may arise from the glycolate pathway (i.e., photorespiration; Tolbert, 1973), the glyoxalate bypass (Romberg and Krebs, 1957) or purine degradation (Huang, 1982). Certain plant pathological fungi oxidize glyoxalate to oxalic acid in the presence of peroxisonal NAD-glyoxalate dehydrogenase (Armentrout et al., 1978) but this system is not found in any higher plant species (Huang, 1982). Salient features of oxalate syn thetic pathways in plant cells provide a necessary background for this dissertation on calcium oxalate crystal idioblast biology. The glycolate pathway Glycolate arises as a result of photosynthesis (Tolbert, 1973) and is the principal substrate of photorespiration (Tolbert, 1973; Zelitch, 1975a,b) as the starting point of the glycolate pathway. Its formation is Og and light dependent and inhibited in high CO^ concentration, although the exact route of its production is not entirely clear (Zelitch, 1971). Glycolic acid is one of the first formed products of photosynthesis in 8 other than 0^. This enzume in barley is somevAiat unstable; all activity may be lost after three hours of dialysis (Kolesnikov et al., 1959). Richardson and Tolbert (1961) found that the activity of glycolate oxidase in spinach is not necessarily restricted to oxidizing glycolate to glyoxylate ^ vivo, but under specific cellular conditions, glyoxylate is oxidized to oxalate. Furthermore, they showed that the flavin-linked enzyme was competitively inhibited by oxalate. They implied that this provided for the regulation of oxalate synthesis. The Michaelis-Menten plots also show that the enzyme had a greater affinity for glycolate than for glyoxylate. Millerd et al. (1963d) found that glycolate oxidase from Oxalis was not affected by the presence of oxalate and had no preferential affinity for glycolate or glyoxylate. It may be that ^ vivo, the activity of glyoxyl ate oxidation may be high if oxalate is removed from the reaction site. A number of fates may befall the glyoxylate produced from photosynthetically derived glycolate in the glycolate oxidase reaction. It may return to the chloroplast to be reduced to glycolate by glycolate reductase (Zelitch, 1953) so that a glycolate-glyoxylate shuttle between the peroxisome and chloroplast is established (Carles and Assailly, 1954). Ifiich of the glyoxylates produced from the oxidation of glycolate is transaminated to glycine in the presence of glutamic acid (Richardson and Tolbert, 1961). Glycine may give rise to serine and CO^ by a hydroxymethyltransferase reaction (Tolbert and Cohan, 1953)....

show abstract

Der Einfluß der Ernährung auf das Verhältnis von Kationen zu Anionen in der Pflanze

Scharrer

Jung

1955

Z. Pflanzenernaehr. Dueng. Bodenk.

View full text Add to dashboard Cite

Weitere Untersuchungen über Beziehungen zwischen Nährstoffversorgung und Oxalsäurebildung im Zuckerrüben- und Mangoldblatt

Cited by 22 publications

References 5 publications

Oxalate in crop plants

Oxalate in crop plants

The development, physiology, and function of selected plant calcium oxalate crystal idioblasts

Der Einfluß der Ernährung auf das Verhältnis von Kationen zu Anionen in der Pflanze

Contact Info

Product

Resources

About