Plant biology

Going Forth to Multiply

Science's STKE  09 Mar 2004:
Vol. 2004, Issue 223, pp. tw92-TW92
DOI: 10.1126/stke.2232004TW92

Self-incompatibility, which assures cross-fertilization in plants, has many similarities to other eukaryotic self-nonself recognition systems. Molecular components involved in the self-incompatibility response in Brassica have been identified on the surface of both pollen and receptive stigma. Murase et al. (see the Perspective by Goring and Walker) have now identified another key component in the pathway, the membrane-anchored kinase MLPK, that functions early in the responsive signal transduction cascade after pollen encounters a stigma epidermis cell.

K. Murase, H. Shiba, M. Iwano, F.-S. Che, M. Watanabe, A. Isogai, S. Takayama, A membrane-anchored protein kinase involved in Brassica self-incompatibility signaling. Science 303, 1516-1519 (2004). [Abstract] [Full Text]

D. R. Goring, J. C. Walker, Self-rejection--a new kinase connection. Science 303, 1474-1475 (2004). [Summary] [Full Text]