biotrophyn.

1944 Rev. Appl. Mycol. 23 139 Innovations in the way of technical terms are ‘biotrophy’, implying the phase of a parasitic or pathogenic agency during which the disease-producer draws its nutriment from the living host cells, [etc.].

1974 New Phytologist 73 1280 Consideration is given to the development of necrotrophy and biotrophy from saprotrophy with special emphasis on the physiological adjustments that are entailed.

1999 D. Ingram & N. Robertson Plant Dis. ii. 39 These [sc. hemibiotrophs] are intermediate in their parasitism and exhibit features of both necrotrophy and biotrophy. An example is Venturia inaequalis, the cause of apple scab.

2005 Plant Cell 17 2107/2 Many pathogenic fungi have at least a phase in which biotrophy is attained, and in some cases this lasts for nearly all the life cycle of the fungus.