Areal (+)-borneol modulates root morphology, auxin signalling and meristematic activity in Arabidopsis roots

Junji Takabayashi, Kyohei Fukuda, Masayoshi Uefune, Hidehiro Fukaki, Yasuo Yamauchi, Ikuko Hara-Nishimura, Rika Ozawa, Kenji Matsui, Kazunori Okada, Ryozo Imai, Kenshi Takahashi, Shinichi Enami, Rene Wurst & Junji Takabayashi
One of the characteristic aspects of odour sensing in humans is the activation of olfactory receptors in a slightly different manner to different enantiomers. Here, we focused on whether plants showed enantiomer-specific responses similar to that in humans. We exposed Arabidopsis seedlings to methanol (control) and (+)- or (−)-borneol, and found that only (+)-borneol reduced the root length. Furthermore, the root-tip width was more increased upon (+)-borneol exposure than upon (−)-borneol exposure. In addition, root-hair...
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