Aconitase levels in the leaves of iron-deficient mustard plants (<i>Sinapis alba</i>)

Bacon, J. S. D.; Dekock, P. C.; Palmer, M. J.

doi:10.1042/bj0800064

Cited by 27 publications

(11 citation statements)

References 11 publications

(3 reference statements)

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“…That there is a balance between citric acid on the one hand and malic plus oxalic on the other has been pointed out elsewhere as also the dependence of this balance on the P/Fe and K/Ca ratios (DeKock and Morrison 13). It is quite possible that the relation between P/Fe and K/Ca is brought about by the balance of citric and malic (or oxalic) acids which, to a certain extent is dependent up0n aconitase and ferrous iron 34 Similar relationships between P/Fe and K/Ca (and organic acids) are observed in plants suffering from genetical chlorosis or virus attack (Church 7 s; DeKock and Hall 12 and unpublished) and also in the process of ageing (Colin and Grandsire g; D eKock et al in preparation).…”

Section: Chemical Analysis O/ Leavesmentioning

confidence: 99%

A relation between the ratios of phosphorus to iron and potassium to calcium in mustard leaves

Dekock¹,

Hall²,

McDonald³

1960

Plant Soil

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Section: Chemical Analysis O/ Leavesmentioning

confidence: 99%

A relation between the ratios of phosphorus to iron and potassium to calcium in mustard leaves

Dekock¹,

Hall²,

McDonald³

1960

Plant Soil

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“…It was reported (15) that the activities of the enzymic systems involved in the synthesis of protoporphyrin from baminolevulinic acid (b-AL) were not reduced by iron deficiency, yet protoporphyrin failed to accumulate in iron-deficient leaves unless the tissue was incubated in the dark with b-AL. Since protoporphyrin is a precursor of both chlorophyll and heme (12), these observations suggest that a depressed 3-Received for publication April 1, 1963. 2 Contribution from the Botany and Bacteriology Department (14) and in avian blood (5,6,17) lhas been suggested.…”

Section: Introductionmentioning

confidence: 99%

“…2 Contribution from the Botany and Bacteriology Department (14) and in avian blood (5,6,17) lhas been suggested. The reaction mediated by aconitase may limit the rate of b-AL synthesis in iron-deficient tissues of animals (9,16) and plants (3).…”

Section: Introductionmentioning

confidence: 99%

Investigations of the Role of Iron in Chlorophyll Metabolism. II. Effect of Iron Deficiency on Chlorophyll Synthesis

1963

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“…Whereas for Fe deficiency it is Downloaded by [McGill University Library] at 06:17 05 January 2015 possible to explain the accumulation of organic acid anions in relation to metabolism i.e. aconitase (2), this is more difficult in the case of P deficient plants. Recent evidence of Duff et al (8), however, suggests that plants may adapt to a lack of Pi by enhancing the activities of several nucleotide phosphate Pj independent enzymes that can function in place of Pj dependent enzymes of the glycolytic pathway.…”

Section: Discussionmentioning

confidence: 98%

Mineral nutrition of chickpea plants supplied with NO3 or NH4-N

Bot

Alloush

Kirkby

et al. 1990

J. of Plant Nutrition

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Chickpea plants (Cicer arietinum L cv. ILC 195) were grown for 24 days in water culture with NO 3 or NH 4 -N, with or without P. The lack of P in the nutrient medium depressed total plant fresh and dry weight yields but did not induce visual symptoms of P deficiency in the shoots despite the low P concentrations found in the plant tissues. For both N-forms, P stress decreased shoot dry weights. The effect of the stress on the root systems varied with the N-source. For NO3-fed plants, roots of stressed plants were longer and slightly greater in weight than those of unstressed plants but for plants supplied with NH4-N, root weight was depressed by the lack of P. With both forms of N, P stress decreased the shoot:root ratio. For the unstressed plants the forms of N-nutrition induced typical changes in the nutrient solution but when NO 3 -fed plants were deprived of P, the nutrient medium became more acid. The response of the NO3-fed P-stressed plants to acidify the nutrient medium was slow. Phosphorus stress decreased the total uptake of all ions. For NO3-fed plants the uptake of Mg was less affected by the stress and, in contrast to K and Ca, was increased in relation to the depression in growth. P stress depressed the uptake of anions more than cations and NO3-uptake was most affected. For NH 4 -fed plants, P stress decreased the uptake of anions more than cations. Of the major cations, K and Ca were particularly depressed but Mg was less affected. The uptake of NH 4 was slightly enhanced in relation to the reduction in growth, indicating that N was not the limiting factor for plant growth. With both forms of N there was evidence of a greater accumulation of organic anions in the roots and sap of P deficient plants.

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Aconitase levels in the leaves of iron-deficient mustard plants (Sinapis alba)

Cited by 27 publications

References 11 publications

A relation between the ratios of phosphorus to iron and potassium to calcium in mustard leaves

A relation between the ratios of phosphorus to iron and potassium to calcium in mustard leaves

Investigations of the Role of Iron in Chlorophyll Metabolism. II. Effect of Iron Deficiency on Chlorophyll Synthesis

Mineral nutrition of chickpea plants supplied with NO3 or NH4-N

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