Acknowledgements
This study was supported by the
Climate Change Adaptation Research Program of the National Institute for
Environmental Studies in Japan. We thank Dr. K. Kobayashi and Dr. Y.
Masutomi for critical reading of the manuscript and for their valuable
comments; Dr. H. Taneda for the support in the quantification of leaf
nitrogen content; Dr. T. Inoue and Dr. Y. Akaji for their support in the
analysis of the biochemical and morphological traits; Mr. A. Kawada, Mr.
Y. Suzuki, Mr. J. Arai, Ms. H. Yaguchi, and Mr. H. Okayasu for their
support in rice cultivation; and Mr. Y. Yamao for technical support in
the O3 exposure treatment of rice plants.