biotrophn.
/ˈbʌɪə(ʊ)trəʊf/, U.S. /ˈbaɪoʊˌtroʊf/, /ˈbaɪoʊˌtrɑf/ Plant Pathology.
A parasite, esp. a fungus, that derives nutrition from living cells of a host plant.
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the world > plants > by nutrition or respiration > [noun] > parasite plant
parasite1728
epiphyte1849
hemiparasite1891
xenoparasite1905
biotroph1950
the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > parasitic plants > [noun]
parasitic1800
biotroph1950
1950 W. B. Brierley tr. E. Gäumann Princ. Plant Infection i. 58 Thus they feed on the living substance of the host, i.e. they are biotrophs.
1971 Jrnl. Ecol. 59 653 The pathogenic fungi whether unspecialized necrotrophs or obligate biotrophs were seen each to have its own ecological niche.
1985 Cambr. Encycl. Life Sci. v. 142/2 Biotrophs such as the rusts and mildews, derive their nutrients directly and only from living cells and cause minimal tissue damage, at least initially.
2007 J. M. Jenkinson et al. in G. M. Gadd et al. Fungi in Environment xi. 229 Biotrophs appear to induce salicylate-dependent defence pathways..whereas necrotrophs induce jasmonate and ethylene-dependent defence pathways.
This is a new entry (OED Third Edition, November 2010; most recently modified version published online December 2021).
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n.1950