Plant and Cell Physiology, 2001, Vol. 42, No. 7 780-783
© 2001 Oxford University Press
The Role of Papillae during the Infection Process in the Gunnera-Nostoc Symbiosis
1 Research Institute for Advanced Science and Technology, University of Osaka Prefecture, Gakuen-cho, Sakai, Osaka, 599-8570 Japan 2 Department of Biological Sciences, The University of Waikato, Hamilton 2001, New Zealand
Gunnera manicata L. glands consist of up to nine separate papillae. Surgical removal of papillae showed that more than two papillae were needed for successful infection with Nostoc. Infection occurs only in the enclosed space between adjacent papillae. Dividing Gunnera cells in the enclosed space are the sites of infection.
3 Corresponding author: E-mail, uheda@riast.osakafu-u.ac.jp; Fax, +81-722-54-9935.
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