Abstract
The entry and translocation of /sup 230/thorium, /sup 226/radium, /sup 210/lead, and /sup 210/polonium were examined in nutrient culture experiments. Strontium-89 was included for comparison. Red kidney beans (Phaseolus vulgaris L.) were treated for a period of 15 days. Results indicate that accumulation of /sup 230/thorium, /sup 210/lead and /sup 210/polonium occurs predominantly in roots and only very small amounts of these nuclides are translocated to shoots. Over comparable periods, the accumulation of /sup 226/radium in roots is 2-3 times lower than that of the other nuclides of uranium series. However, the most significant difference between /sup 226/radium and other nuclides is in the extent of their upward transport which for radium is 50-200 times greater. The amount of radium translocated to shoots is comparable to that of strontium. The present evidence of rapid transfer of /sup 226/radium to shoots suggests that among the nuclides examined, /sup 226/radium is likely to make the major contribution to radioactivity in aerial tissues of plants grown under conditions where root absorption is the principal route of entry of the nuclides.
Citation Formats
D'Souza, T J, and Mistry, K B.
Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants.
United Kingdom: N. p.,
1970.
Web.
doi:10.1016/S0033-7560(70)80024-2.
D'Souza, T J, & Mistry, K B.
Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants.
United Kingdom.
doi:10.1016/S0033-7560(70)80024-2.
D'Souza, T J, and Mistry, K B.
1970.
"Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants."
United Kingdom.
doi:10.1016/S0033-7560(70)80024-2.
https://www.osti.gov/servlets/purl/10.1016/S0033-7560(70)80024-2.
@misc{etde_6403916,
title = {Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants}
author = {D'Souza, T J, and Mistry, K B}
abstractNote = {The entry and translocation of /sup 230/thorium, /sup 226/radium, /sup 210/lead, and /sup 210/polonium were examined in nutrient culture experiments. Strontium-89 was included for comparison. Red kidney beans (Phaseolus vulgaris L.) were treated for a period of 15 days. Results indicate that accumulation of /sup 230/thorium, /sup 210/lead and /sup 210/polonium occurs predominantly in roots and only very small amounts of these nuclides are translocated to shoots. Over comparable periods, the accumulation of /sup 226/radium in roots is 2-3 times lower than that of the other nuclides of uranium series. However, the most significant difference between /sup 226/radium and other nuclides is in the extent of their upward transport which for radium is 50-200 times greater. The amount of radium translocated to shoots is comparable to that of strontium. The present evidence of rapid transfer of /sup 226/radium to shoots suggests that among the nuclides examined, /sup 226/radium is likely to make the major contribution to radioactivity in aerial tissues of plants grown under conditions where root absorption is the principal route of entry of the nuclides.}
doi = {10.1016/S0033-7560(70)80024-2}
journal = {Radiat. Bot.; (United Kingdom)}
volume = {10}
journal type = {AC}
place = {United Kingdom}
year = {1970}
month = {Jan}
}
title = {Comparative uptake of thorium-230, radium-226, lead-210 and polonium-210 by plants}
author = {D'Souza, T J, and Mistry, K B}
abstractNote = {The entry and translocation of /sup 230/thorium, /sup 226/radium, /sup 210/lead, and /sup 210/polonium were examined in nutrient culture experiments. Strontium-89 was included for comparison. Red kidney beans (Phaseolus vulgaris L.) were treated for a period of 15 days. Results indicate that accumulation of /sup 230/thorium, /sup 210/lead and /sup 210/polonium occurs predominantly in roots and only very small amounts of these nuclides are translocated to shoots. Over comparable periods, the accumulation of /sup 226/radium in roots is 2-3 times lower than that of the other nuclides of uranium series. However, the most significant difference between /sup 226/radium and other nuclides is in the extent of their upward transport which for radium is 50-200 times greater. The amount of radium translocated to shoots is comparable to that of strontium. The present evidence of rapid transfer of /sup 226/radium to shoots suggests that among the nuclides examined, /sup 226/radium is likely to make the major contribution to radioactivity in aerial tissues of plants grown under conditions where root absorption is the principal route of entry of the nuclides.}
doi = {10.1016/S0033-7560(70)80024-2}
journal = {Radiat. Bot.; (United Kingdom)}
volume = {10}
journal type = {AC}
place = {United Kingdom}
year = {1970}
month = {Jan}
}