G. Berta et al., NUCLEAR MORPHOLOGY AND DNA CONTENT IN THE GLANDULAR TRICHOMES OF PEPPERMINT (MENTHA X PIPERITA L), Protoplasma, 175(3-4), 1993, pp. 85-92
Morphometry, microfluorimetry and electron microscopy were used to inv
estigate the size, ploidy level, and morphology of the nucleus of the
individual cells forming the peltate and capitate glandular trichomes
in Mentha x piperita L. Nuclear hypertrophy was observed in the secret
ory cells of both kinds of trichomes. This could be explained by polyp
loidization and by variations in chromatin structure which may be rela
ted to increased transcriptional activity.