PLANT AND CELL PHYSIOLOGY, vol. 44, no. 12, page. 1403 - 1411, 2003-12
PLANTA, vol. 217, no. 6, page. 904 - 911, 2003-10
PLANT AND CELL PHYSIOLOGY, vol. 44, no. 5, page. 463 - 472, 2003-05
SCIENCE, vol. 299, no. 5614, page. 1896 - 1898, 2003-03-21