Fig. 1.

Above-ground tissue during starvation. (a) All leaf area is brown and dead. (b) All leaf area is dead, but some tissue is green but crisp. (c) Resprouting in the dark shortly after leaves have died. (d–h) Progression of stem dieback starting at the tip and proceeding downward to the base. Lines indicate the extent of necrosis. Note: green axillary buds are black-tipped (indicated by an arrow) and the root system in (h), after most of stem has died, appears to be still alive (i.e. not black).