0

Full Content is available to subscribers

Subscribe/Learn More  >

Uptake of 14C-Acetic Acid by Rice Plant as Related to Root Function and Microbial Activity on the Root Surface

[+] Author Affiliations
Shinichi Ogiyama, Nobuyoshi Ishii, Shigeo Uchida

National Institute of Radiological Sciences, Chiba, Japan

Paper No. ICEM2009-16111, pp. 689-693; 5 pages
doi:10.1115/ICEM2009-16111
From:
  • ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management
  • ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management, Volume 1
  • Liverpool, UK, October 11–15, 2009
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 978-0-7918-4407-6 | eISBN: 978-0-7918-3865-X
  • Copyright © 2009 by ASME

abstract

Experiments using rice plants (Oryza sativa L.) were conducted to examine uptake of 14 C-acetic acid via the root and 14 C behavior on the root surface. For hydroponics, three types of rice plants were cultured with 14 C-acetic acid solution: complete plant, half-rooted plant, and non-rooted plant. Also, for the root incubation experiment, sterilized root and non-sterilized root were incubated with 14 C-acetic acid solution. The 14 C radioactivities in the plant parts and solution were measured. Non- and half-rooted plant had 14 C radioactivity in their aerial part, but the complete plant did not. The trends of radioactivity levels in the solution were directly opposite to those of plant root biomass. A high level of 14 C radioactivity was observed on the entire root surface of non-sterilized root in the incubation experiment, and 14 C radioactivity in the solution also remarkably decreased from 7 h to 96 h after the 14 C addition. These results suggest that the amount of 14 C-acetic acid absorbed by the plant through the roots is very small. However, the plant absorbs 14 C-acetic acid through breaks in the roots. Once 14 C-acetic acid is inside the plant, it immediately transfers to the shoots. Degradation of 14 C radioactivity in the solution and 14 C fixation on the root surface arise from the context of microbial activities.

Copyright © 2009 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In