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Involvement of Arabidopsis thaliana phospholipase Dzeta2 in root hydrotropism through the suppression of root gravitropism.

Planta - 1 Jan 2010

Taniguchi Yukimi Y, Taniguchi Masatoshi, Tsuge Tomohiko, Oka Atsuhiro, Aoyama Takashi

Abstract excerpt

Root hydrotropism is the phenomenon of directional root growth toward moisture under water-deficient conditions. Although physiological and genetic studies have revealed the involvement of the root cap in the sensing of moisture gradients, and those of auxin and abscisic acid (ABA) in the signal transduction for asymmetric root elongation, the overall mechanism of root hydrotropism is still unclear. We found that...

Topics

Abscisic Acid
Arabidopsis
Arabidopsis Proteins
Gravitropism
Mutation
Phospholipase D
Plant Root Cap
Plant Roots
Promoter Regions, Genetic
Water

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PMID: 19915862
DOI: 10.1007/s00425-009-1052-x

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