what is necrotrophs
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Biotrophs are pathogens that derive nutrients from living host tissues, and necro-trophs are pathogens that derive nutrients from dead or dying cells (4). Some pathogens can be clearly assigned as biotrophs or necrotrophs.
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Necrotrophs derive energy from killed cells; they invade and kill plant tissue rapidly and then live saprotrophically on the dead remains; hemibiotrophs have an initial period of biotrophy followed by necrotrophy.
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