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Nature 416, 801-803 (25 April 2002) | doi:10.1038/416801a
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Plant biology: On guard
Pierre J. G. M. de Wit
Abstract
Microorganisms that infect plants must suppress their hosts' defence mechanisms before they take up residence. But some plants use molecular guards to sense when they are being manipulated by pathogens.
As a rich source of sugars and amino acids, plants attract a variety of intruders, from viruses, bacteria and fungi to insects. To protect themselves, plants have in their armoury of passive defence mechanisms such as strengthened cell walls and antimicrobial compounds, as well as active healing responses.
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