Mycoflora in Exhumed Seeds of Opuntia tomentosa and Its Possible Role in Seed Germination
Figure 5
Micrographs of Opuntia tomentosa seeds exhumed after 5 mo of burial: (a) whole seed showing a slight separation of the funicular girdle; (b) deep degradation in the hilum-micropiliar zone and in the surface layers of a seed buried at the open site; (c) deep degradation in the hilum-micropiliar zone and in the surface layers of a seed buried at the closed site. Ff: funicular flanks, Fg: funicular girdle, HMR: hilum-micropylar region.
