Naslov
Chromoplast biogenesis in Chelidonium majus petals

Autori
Prebeg, Tatjana ; Ljubešić, Nikola ; Wrischer, Mercedes

Izvornik
Acta Societatis Botanicorum Poloniae (0001-6977) 75 (2006), 2; 107-112

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Chelidonium majus L.; greater celandine; chromoplast ultrastructure; chromoplast fibrils; fibrillin

Sažetak
The differentiation of chromoplasts, with special emphasis on the formation and the organisation of chromoplast fibrils, was followed in the petals of the greater celandine, Chelidonium majus L. Electron microscopic observations showed that, in the epidermis, differentiation of chromoplasts started from leucoplasts, while mesophyll chromoplasts originated from chloroplasts. During petal maturation, fibrils accumulated in the plastids, often arranging in a parallel fashion to form compact birefringent bundles. Immediately before flower opening, these fibrillar bundles started to disorganise, and, at anthesis, most chromoplasts contained widely spaced fibrils which were irregularly dispersed through the plastid interior. During chromoplast differentiation, fibrils were commonly observed to protrude from plastoglobules, suggesting the possible site of their formation. Western analysis indicated that a protein antigenically related to fibrillin from pepper chromoplasts participates in the constitution of fibrils in Chelidonium petals.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA