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News and Views
Nature 423, 229-230 (15 May 2003) | doi:10.1038/423229a
Plant reproduction: Sex and self-denial
Ed Newbigin & Richard D. Vierstra
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Abstract
Many plants are self-incompatible — that is, they have mechanisms to prevent fertilization by their own pollen. A familiar and uncommonly versatile protein, ubiquitin, is found to be a central player in one such system.
Ubiquitin is certainly living up to its name. This small protein, first named because of its seemingly ubiquitous presence in animal and plant cells, now seems to be an almost universal regulator molecule.
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