NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effect of iodine disinfection products on higher plantsIodine is used to disinfect potable water on United States spacecraft. Iodinated potable water will likely be used to grow plants in space. Little is known about the effects of iodine disinfection products on plants. Seeds of select higher plants were germinated in water iodinated using the Shuttle Microbial Check Valve, and water to which measured amounts of iodine was added. Percent germination was decreased in seeds of most species germinated in iodinated water. Beans were most affected. Germination rates, determined from germination half-times, were decreased for beans germinated in iodinated water, and water to which iodide was added. Development was retarded and rootlets were conspicuously absent in bean and several other plant species germinated in iodinated water. Iodide alone did not elicit these responses. Clearly iodine disinfection products can affect higher plants. These effects must be carefully considered for plant experimentation and cultivation in space, and in design and testing of closed environmental life support systems.
Document ID
19900028383
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Janik, D.
(NASA Ames Research Center Moffett Field, CA, United States)
Macler, B.
(NASA Ames Research Center Moffett Field, CA, United States)
Macelroy, R. D.
(NASA Ames Research Center Moffett Field, CA, United States)
Thorstenson, Y.
(California, University Berkeley, United States)
Sauer, R.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Natural and Artificial Ecosystems, Espoo, Finland, July 18-29, 1988) Advances in Space Research
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Accession Number
90A15438
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available