1. Andersson, K. E., and Wagner, Y. Physiology of penile erection. Physiol. Rev., 75: 191–236, 1995. A well written review pointing out the multifaceted aspects of this phenomenon clearly indicating the necessary interplay of several factors and not attributing penile erection to a sole mechanism.
2. Betz, C., Tuomainen, J., Kangasjarvi, J., Ernst, D., Yin, Z., Langebartels, C., and Sandermann, H. Ozone activation of ethylene biosynthesis in tomato. In: H. K. Lichtenthaler (ed.), Vegetation Stress. Proc. Sym. Vegetation Stress, Munich, 1996. Of interest to environmental scientists. Atmospheric pollution relates to ripening and senescence of cultivated plants.
3. Chamulitrat, W., Jordan, S. J., Mason, R. P., Saito, K., and Culter, R. G. Nitric oxide formation during light-induced decomposition of phenyl-N-tert butylnitrone. J. Biol. Chem., 268: 11520–11527,1993. Details of how NO synthesis may be controlled in vitro by use of a novel compound.
4. Delledonne, M., Xia, Y. J., Dixon, R. A., and Lamb, C. Nitric oxide functions as a signal in plant disease resistance. Nature, 394: 585–588, 1998. A noteworthy step towards relegating a central role of NO in plant disease resistance.
5. Durner, J., Wendehenne, D., and Klessig, D. F. Defense gene induction in tobacco by nitric oxide, cyclic GMP and cyclic ADP-ribose. Proc. Natl. Acad. Sci. U. S. A., 95: 10328–10333,1998. A breakthrough in phytopathology linking up endogenous plant disease control with overall NO turnover as known in mammals.