UPTAKE OF Sr<sup>85</sup> BY CEREAL CROPS AND VARIETIES

Lee, C. C.; Sosulski, F. W.

doi:10.4141/cjps65-002

Cited by 8 publications

(11 citation statements)

References 5 publications

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“…The magnitude of the transport rates varied considerably among the various species, corn having the greatest followed by barley, vetch, and pine in decreasing order. Transport did not correlate with root weight or surface area; it amounted to from 0.03 to 0.60 nanomoles per hr in these experiments as oompared to 7 nanomoles per hr previously established in corn (in all cases, 55 mm segments, sectioned 10 mm from apex).Several investigators have shown that the rates of translocation of strontium or calcium tracers from the roots can vary significantlv among different plants (11,18,20, 23,26,28,29 of competitive inhibition were studied also in corn (15). The purpose of the present studies was to compare vetch, barley and pine tunder the same conditions previously used for corn.…”

contrasting

confidence: 44%

“…Several investigators have shown that the rates of translocation of strontium or calcium tracers from the roots can vary significantlv among different plants (11,18,20, 23,26,28,29 of competitive inhibition were studied also in corn (15). The purpose of the present studies was to compare vetch, barley and pine tunder the same conditions previously used for corn.…”

mentioning

confidence: 99%

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Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Hutchin¹,

Vaughan²

1968

Plant Physiol.

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Abstract. Root segments of vetch, barley, and pine were exposed to a nutrient solution containing 85Sr and 45Ca tracers. Translocation was measured from solutions containing stable ions at concentrations of 2.5 mM Ca, and at either 0.5 mM or 2.5 mM Sr. Polar transport was established between 12 and 18 hr in barley, and between 16 and 22 hr in vetch. Acropetal transport remained below 5 % of basipetal transport of tracer during these intervals. Transport in both vetch and barley usually deolined before an elapsed time of 24 hr unlike corn, which maintained its steady state beyond 24 hr. Pine was radically different in that it showed no difference between acropetal and basipetal transport rates and had very low rates. Sr transport in all plants studied to date paralleled that of Ca and the ratio Sr:Ca transported was equal to the ratio Sr:Ca in the nutrient. In vetch, stable Ca transport was reduced to one-fifth when Sr concentration was increased from 0.5 mM to 2.5 mM. Yet stable Sr transport did not change, indicating that the effect on transport was not due to competitive inhibition. A similar effect was less pronounced in barley, but could not be detected in pine. The magnitude of the transport rates varied considerably among the various species, corn having the greatest followed by barley, vetch, and pine in decreasing order. Transport did not correlate with root weight or surface area; it amounted to from 0.03 to 0.60 nanomoles per hr in these experiments as oompared to 7 nanomoles per hr previously established in corn (in all cases, 55 mm segments, sectioned 10 mm from apex).Several investigators have shown that the rates of translocation of strontium or calcium tracers from the roots can vary significantlv among different plants (11,18,20, 23,26,28,29 of competitive inhibition were studied also in corn (15). The purpose of the present studies was to compare vetch, barley and pine tunder the same conditions previously used for corn. Vicia sativa (common vetch) was cho-en as a representative dicotyledon, and its roots could be studied in the perfusion bridge previously described (10, 32). Also. since it is a common pasture plant. measurement of its strontium transport might be directly applicable to fallout contamination problems. Pinlts radiata was selected as a representative gymnosperm. Barley was included as an additional monocotyledon that has been widely studied. Materials and Methods

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contrasting

confidence: 44%

mentioning

confidence: 99%

Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Hutchin¹,

Vaughan²

1968

Plant Physiol.

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“…(continued on next page) Lee and Sosulski (1965) Oats (Avena sativa L.) Sr 1.17 As above. Lee and Sosulski (1965) Oats (Avena sativa L.) Sr 1.45 As above.…”

Section: Studymentioning

confidence: 95%

“…Green et al (1996) Potato (Solanum tuberosum L.) Cs 3.67 As above. James et al (1995) Alfalfa ( Lee and Sosulski (1965) Barley (Hordeum vulgare L.) Sr 1.93 As above. Lee and Sosulski (1965) Barley (Hordeum vulgare L.) Sr 2.24 As above.…”

Section: Studymentioning

confidence: 96%

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Inter-varietal variation in caesium and strontium uptake by plants: a meta-analysis

Penrose

Beresford

Broadley

et al. 2015

Journal of Environmental Radioactivity

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Strontium accumulation in whole grain of Aegilops and Triticum species

Kastori

Maksimović

Denčić

et al. 2017

J. Plant Nutr. Soil Sci.

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Plant species differ in their ability to accumulate mineral elements. Differences also exist among genotypes, lines, and varieties within species. Strontium (Sr) enters the food chain primarily via plants, and wheat products are amongst the most important pathways by which Sr enters the human body. The aim of this study was to analyze the accumulation of Sr in whole grain of various Aegilops and Triticum species with different genomes (AA, BB, BBAA, BBAADD, and DD). During three experimental years plants were grown in temperate continental climate on a calcareous, gleyic chernozem soil. The results reveal that the studied species and genomes differed significantly in Sr accumulation in the grains. The average Sr concentration of the grains ranged, depending on the year of study and genotype, from 0.70 to 3.89 mg kg−1 DM. The grain of wild diploid Aegilops speltoides with BB genome contained significantly more Sr than all of the other analyzed genotypes. Grains of wild and cultivated tetraploid wheat genotypes had the lowest Sr concentration. The modern cultivated hexaploid wheat varieties displayed substantial variation in Sr concentration in the grains. The examined genotypes also differed significantly with respect to their mass of 1000 grains, which was the smallest in Aegilops speltoides. There was a significantly negative correlation between the average mass of a 1000 grains and concentration of Sr. The results show that even when the background concentration of Sr was relatively low, wheat genotypes accumulated it in the grains, although to a different extent. Therefore, selection of wheat genotypes which accumulate less Sr in the grain could contribute to improve food quality.

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UPTAKE OF Sr⁸⁵ BY CEREAL CROPS AND VARIETIES

Cited by 8 publications

References 5 publications

Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Inter-varietal variation in caesium and strontium uptake by plants: a meta-analysis

Strontium accumulation in whole grain of Aegilops and Triticum species

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UPTAKE OF Sr85 BY CEREAL CROPS AND VARIETIES

Cited by 8 publications

References 5 publications

Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Inter-varietal variation in caesium and strontium uptake by plants: a meta-analysis

Strontium accumulation in whole grain of Aegilops and Triticum species

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Product

Resources

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UPTAKE OF Sr⁸⁵ BY CEREAL CROPS AND VARIETIES