Molecular Mechanisms of Boron Transport in Plants: Involvement of Arabidopsis NIP5;1 and NIP6;1

  • Kyoko Miwa
  • Mayuki Tanaka
  • Takehiro Kamiya
  • Toru Fujiwara
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 679)


Understanding of the molecular mechanisms of boron (B) transport has been greatly advanced in the last decade. BOR1, the first B transporter in living systems, was identified by forward genetics using Arabidopsis mutants. Genes similar to BOR1 have been reported to share different physiological roles in plants. NIP5;1, a member of aquaporins in Arabidopsis, was then identified as a boric acid channel gene responsible for the B uptake into roots. NIP6;1, the most similar gene to NIP5;1, encodes a B channel essential for B distribution to young leaves. In the present chapter, recent advancement of the understanding of molecular mechanisms of B transport and roles of NIP genes are discussed.


Transgenic Line Boric Acid Wild Type Plant Pectic Polysaccharide Major Intrinsic Protein 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Landes Bioscience and Springer Science+Business Media 2010

Authors and Affiliations

  • Kyoko Miwa
    • 1
  • Mayuki Tanaka
    • 1
  • Takehiro Kamiya
    • 1
  • Toru Fujiwara
    • 1
  1. 1.Biotechnology Research CenterThe University of TokyoJapan

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