The localization of
expression in developing and mature Scots pine seeds. (A)
ATG5 expression (blue signal) in the esr of the megagametophyte and in the nucellar layers at the early embryogeny. (B)
ATG5 expression in the esr of the megagametophyte and in the maturating tracheids of the embryo in a mature seed. asr = arrow-shaped region, cc = corrosion cavity, e = embryo, esr = embryo surrounding region, m = megagametophyte, nc = nucellar cap, nl = nucellar layers, sr = suspensor remnants. Bars: 100 μm.