Fig. 4
From: An optimized histological proceeding to study the female gametophyte development in grapevine
Transversal sections of Sangiovese ovaries and ovules at stage E-L 17. A, B Transversal section at 100× of the ovary of two Sangiovese flowers presenting two (A) or rarely three locules (B) with two ovules each one. C–F sections of ovules containing the megaspore during starting mitosis at 400×. G–I megaspore in each section of ovules in the central part of nucellus at 1000×. Nu: nucellus, l: locule, ii: inner integument, oi: outer integument, ms: megaspore