An efficient foraging strategy for plant roots relies on the ability to sense multiple physical and chemical cues in soil and to reorient growth accordingly (tropism). Root tropisms range from sensing gravity (gravitropism), light (phototropism), water (hydrotropism), touch (thigmotropism) and more. Electrotropism, also known as galvanotropism, is the phenomenon of aligning growth with external electric fields and currents. Although observed in a few species since the end of the 19^th century, the molecular and physical mechanism of root electrotropism remains elusive, limiting the comparison to more defined sensing pathways in plants.

中文翻译：

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拟南芥的根向电性不依赖于生长素分布，但需要细胞分裂素生物合成

植物根系的有效觅食策略依赖于感知土壤中多种物理和化学线索并相应地重新定向生长（向性）的能力。根向性包括感知重力（向地性）、光（向光性）、水（向水性）、触摸（向性）等。向电性，也称为向电流性，是一种使生长与外部电场和电流对齐的现象。由于19的端在少数物种虽然观察到^第世纪，根向电性的分子和物理机制仍然是难以捉摸的，限制在植物的比较更定义感测通路。