| Effect of a longitudinally applied voltage upon the growth of Zea mays seedlings. | |
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MedLine Citation:
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PMID: 11537877 Owner: NASA Status: MEDLINE |
Abstract/OtherAbstract:
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The electrical parameters that affect young seedling growth were investigated. Voltages ranging from 5 to 40 volts were applied longitudinally along the mesocotyl region of 4-day old Zea mays L. (cv Silver Queen) seedlings for periods of 3 or 4 hours. It was determined that: (a) making the tips of the seedlings electrically positive relative to the base strongly inhibited shoot growth at 5 volts, whereas the reverse polarity had no effect; (b) at higher voltages, making the tip of the seedlings negative caused less growth inhibition than the reverse polarity at each voltage level; (c) the higher the applied voltage the greater the degree of inhibition; and, (d) the more growth inhibition experienced by the plants the poorer, and slower, their recovery. Previous observations of a relationship between the amount of free indole-3-acetic acid in the mesocotyl cortex and the growth rate of the mesocotyl and of gravitropism-induced movement of labeled indole-3-acetic acid from the seed to the shoot lead to the prediction of a voltage-dependent gating of the movement of indole-3-acetic acid from the stele to the cortex. This provided the basis for attempting to alter the growth rate of seedlings by means of an applied voltage. |
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Authors:
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M F Desrosiers; R S Bandurski |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Plant physiology Volume: 87 ISSN: 0032-0889 ISO Abbreviation: Plant Physiol. Publication Date: 1988 |
Date Detail:
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Created Date: 1995-08-08 Completed Date: 1995-08-08 Revised Date: 2010-09-14 |
Medline Journal Info:
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Nlm Unique ID: 0401224 Medline TA: Plant Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 874-7 Citation Subset: S |
Affiliation:
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Department of Botany and Plant Pathology, Michigan State University, East Lansing 48824. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Electric Stimulation
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adverse effects,
instrumentation Electricity / adverse effects* Plant Shoots / growth & development*, physiology Time Factors Zea mays / growth & development*, physiology |
| Grant Support | |
ID/Acronym/Agency:
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DMB-8504231/MB/BHP HRSA HHS |
| Investigator | |
Investigator/Affiliation:
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M F Desrosiers / MI St U, East Lansing, Dept Botany & Plant Pathology; R S Bandurski / MI St U, East Lansing, Dept Botany & Plant Pathology |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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