Journal of Experimental Botany (2007) - Comment
pubmed: 17545228  doi: 10.1093/jxb/erm096  issn: 0022-0957  issn: 1460-2431 

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Guo-Hua Xu, Veronique Chague, Cathy Melamed-Bessudo, Yoram Kapulnik, Ajay Jain, Kashchandra G Raghothama, Avraham A Levy, Avner Silber