Influence du rapport Strontium — Calcium sur la localisation du Strontium et du Calcium chez <i>Pisum sativum</i>

Myttenaere, C.

doi:10.1111/j.1399-3054.1964.tb08208.x

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…Despite the similarities of the two elements, one would expect some discrimination between them in higher plants. Wiele differences of Observed Ratio (OR = CajSr in culture solution / CajSr in plant tissue) have been found in different plant organs by many workers, and the CajSr ratio is usually found to be smaller in the roots than in other parts of the ]plant, which suggests some discriminatory mechanism against the passage of Sr to the plant top (12,14,15,18). Table I shows that the greatest contrast in weight between the extremes of the CajSr ratios is exhibited by the bean plant.…”

Section: Resultsmentioning

confidence: 99%

Calcium and Strontium Relationship in Various Commercially Important Plants¹

Creger¹,

Holt²,

Lovelace

1970

Agronomy Journal

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The rate of uptake and the degree of translocation of strontium was investigated, as well as the amounts taken up and the effects on the growth of sorghum, cotton, and bean plants when high levels of strontium are incorporated into the culture medium. Strontium was shown to be taken up readily by the plants and also to be very mobile in actively growing plant tissue. Species differed in growth response to Sr with the greatest retarding (toxicity) effect occurring with bean plants. Species showing the largest percent of Ca in plant tissue in a Sr‐free culture showed the largest concentration of Sr in a Ca‐free culture. Generally, the Sr content of plant tops was higher than roots at all Ca/Sr ratios in the culture solution.

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Section: Resultsmentioning

confidence: 99%

Calcium and Strontium Relationship in Various Commercially Important Plants¹

Creger¹,

Holt²,

Lovelace

1970

Agronomy Journal

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“…Because strontium prevented injury in plants grown on calcium-deficient media ( Fig. 6; Table 1) and strontium has been reported to strongly bind with plant cell wall (Myttenaere, 1964), we suggest that 12.1 abc 165 9.0 bc 10.5 a 0.0 c 1020 11 abc 158 8.3 c 10.1 ab 0.4 c z The calcium in the media was kept at a constant 68 mM (deficient level) and the strontium concentration was varied from 0 to 1020 mM. Each treatment had 17 replications.…”

Section: Discussionmentioning

confidence: 97%

“…Calcium and strontium are closely related elements and have been shown to have similar behavior in the plants (Mengel et al, 2001). Early studies by Myttenaere (1964) found that strontium is deposited in the plant cell walls to a much greater extent than calcium. There is also evidence that strontium can replace calcium during plant growth (Queen et al, 1963).…”

Section: Discussionmentioning

confidence: 99%

“…Hutchin and Vaughan (1968) showed that plant uptake and distribution of these two elements is similar but not identical. Myttenaere (1964) found that strontium is deposited in the cell wall to a much greater extent than calcium. Results from these early studies suggest that strontium may be able to mitigate calcium deficiency symptoms, especially in cell wall development.…”

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confidence: 99%

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Influence of Root Zone Calcium on Shoot Tip Necrosis and Apical Dominance of Potato Shoot: Simulation of This Disorder by Ethylene Glycol Tetra Acetic Acid and Prevention by Strontium

Özgen¹,

Busse²,

Palta³

2011

horts

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The important roles of calcium on plant growth and development including cell division and cell elongation is well documented. The purpose of the present study was to determine the impact of root zone calcium on the growth and health of potato apical meristem and on the maintenance of apical dominance. For this purpose, single-node potato cuttings (Solanum tuberosum L. cv. Dark Red Norland) were grown in sterilized modified Murashige and Skoog (MS) media containing varying concentrations of calcium (1 to 3000 μM). After 13 to 30 d of growth, plantlets were harvested and data for height of the main shoot and for the number of axillary shoots produced were recorded. Plantlets were ashed and tissue calcium concentration was determined. Shoot height was retarded with decreasing concentration of calcium in the media. Calcium deficiency induced shoot tip injury and loss of apical dominance. Tip injury was followed by the development of axillary shoots. The number of axillary shoots increased from one to 21 as calcium concentration in the media decreased from 3000 to 1 μM. At calcium concentration of 1500 μM or higher, there was a single main shoot with no axillary shoots. Addition of ethylene glycol tetra acetic acid (EGTA), a calcium chelator, to the media with 2720 μM calcium (sufficient calcium) resulted in the development of shoot injury and in the formation of axillary shoots. Calcium deficiency injury symptoms were prevented by the addition of a calcium analog, strontium, to MS media deficient in calcium. Strontium has been reported to strongly bind to plant cell walls and the inclusion of strontium prevented injury in shoots of plants grown on calcium-deficient media. These results suggest that strontium is able to mimic the role of calcium in the maintenance of cell wall integrity and supports previous studies that showed that calcium deficiency results from cell wall collapse of the subapical cells.

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“…Les experiences ont permis l'etablissement d'un bilan precis des quantites de Sr et de Ca presentes dans les parois et le sue en relation avec le rapport Sr/Ca du milieu nutritif. (5). La comparaison de l'activite du materiel integral a l'activite des "parois", souligne un ecart de plus en plus prononce avec l'augmentation du rapport Sr/Ca de la solution nutritive.…”

Section: Conditions Experimentates Et Methodes D'analysesunclassified

Influence du rapport Strontium — Calcium sur la localisation du Strontium et du Calcium chez Pisum sativum

Cited by 11 publications

References 5 publications

Calcium and Strontium Relationship in Various Commercially Important Plants¹

Calcium and Strontium Relationship in Various Commercially Important Plants¹

Influence of Root Zone Calcium on Shoot Tip Necrosis and Apical Dominance of Potato Shoot: Simulation of This Disorder by Ethylene Glycol Tetra Acetic Acid and Prevention by Strontium

Influence du rapport Strontium — Calcium sur la localisation du Strontium et du Calcium chez Pisum sativum

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Influence du rapport Strontium — Calcium sur la localisation du Strontium et du Calcium chez Pisum sativum

Cited by 11 publications

References 5 publications

Calcium and Strontium Relationship in Various Commercially Important Plants1

Calcium and Strontium Relationship in Various Commercially Important Plants1

Influence of Root Zone Calcium on Shoot Tip Necrosis and Apical Dominance of Potato Shoot: Simulation of This Disorder by Ethylene Glycol Tetra Acetic Acid and Prevention by Strontium

Influence du rapport Strontium — Calcium sur la localisation du Strontium et du Calcium chez Pisum sativum

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Calcium and Strontium Relationship in Various Commercially Important Plants¹

Calcium and Strontium Relationship in Various Commercially Important Plants¹