Induction of hydrotropism in clinorotated seedling roots of Alaska pea,Pisum sativum L.
- Hideyuki TakahashiAffiliated withInstitute of Genetic Ecology, Tohoku University
- , Mamoru TakanoAffiliated withInstitute of Genetic Ecology, Tohoku University
- , Nobuharu FujiiAffiliated withInstitute of Genetic Ecology, Tohoku University
- , Masamichi YamashitaAffiliated withSpace Utilization Research Center, Institute of Space and Astronautical Science
- , Hiroshi SugeAffiliated withInstitute of Genetic Ecology, Tohoku University
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Roots of the agravitropic pea (Pisum sativum L.) mutantageotropum show positive hydrotropism, whereas roots of Alaska peas are hydrotropically almost non-responsive. When the gravitropic response was nullified by rotation on clinostats, however, roots of Alaska peas showed unequivocal positive hydrotropism in response to a water potential gradlent. These results suggest that roots of Alaska peas possess normal ability to respond hydrotropically and their weak hydrotropic response results from a counteracting effect of gravitropism.
Key wordsClinostat Gravitropism Hydrotropism Pisum sativum L. Pea root Water potential
- Induction of hydrotropism in clinorotated seedling roots of Alaska pea,Pisum sativum L.
Journal of Plant Research
Volume 109, Issue 3 , pp 335-337
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- Pisum sativum L.
- Pea root
- Water potential
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- Author Affiliations
- 1. Institute of Genetic Ecology, Tohoku University, Katahira, 980-77, Aoba-ku, Sendai, Japan
- 2. Space Utilization Research Center, Institute of Space and Astronautical Science, 229, Yoshinodai, Sagamihara, Japan