Journal of Plant Research

, Volume 124, Issue 1, pp 131–136 | Cite as

Patterns of photoassimilate translocation to reproductive shoots from adjacent shoots in Camellia sasanqua by manipulation of sink-source balance between the shoots

  • Hiroki Oitate
  • Ko NoguchiEmail author
  • Kosei Sone
  • Ichiro Terashima
  • Alata Antönio Suzuki
Short Communication


To know to what extent reproductive shoots are autonomous in Camellia sasanqua, we manipulated the sink-source balance between the reproductive shoots and their adjacent shoots by selecting vegetative or reproductive adjacent shoots, or defoliating the reproductive shoots, and photosynthetically labeled adjacent shoots with 13C. The atom% of 13C did not increase in the unlabeled shoots that had leaves, whereas that in the defoliated, unlabeled shoot was significantly increased. These results indicated that the pattern of translocation of photoassimilates to adjacent reproductive shoots occurs depending on the sink-source balance between shoots.


Branch autonomy Camelliasasanqua Thunb. Sink-source balance 13Tracer experiment 



We thank Prof. S. Nakano and Dr. H. Miyasaka for the use of the mass spectrometer. We also thank Drs. S.F. Hasegawa, Y. Miyazaki and H. Haga for supporting the 13C tracer experiment. This study was supported by the grant from the Ministry of Education, Science, Sports and Culture of Japan (No. 16207002).


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Copyright information

© The Botanical Society of Japan and Springer 2010

Authors and Affiliations

  • Hiroki Oitate
    • 1
  • Ko Noguchi
    • 1
    • 2
    Email author
  • Kosei Sone
    • 1
    • 3
  • Ichiro Terashima
    • 1
    • 2
  • Alata Antönio Suzuki
    • 1
    • 4
  1. 1.Department of Biological Sciences, Graduate School of ScienceOsaka UniversityToyonakaJapan
  2. 2.Department of Biological Sciences, Graduate School of ScienceThe University of TokyoTokyoJapan
  3. 3.Central ResearchBridgestone CorporationTokyoJapan
  4. 4.Research Institute for Humanity and Nature (RIHN)KyotoJapan

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