Naslov
The fine structure of pepper chromoplasts: the effect of bleaching herbicides

Autori
Salopek, Branka ; Ljubešić, Nikola

Izvornik
Acta Botanica Croatica (0365-0588) 53 (1994); 7-13

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

Ključne riječi
Capsicum annuum; pepper; fruit; chromoplast development; leuco-chloroplast; amitrole; SAN 9789; carotenoid; plastoglobule

Sažetak
The fine structure of plastids and carotenoid levels in the pepper fruit (Capsicum annuum) were studied during various stages of ripening. Red ripe fruit contained spindle-shaped chromoplasts which originated from leuco-chloroplasts. The bleaching herbicides amitrole and SAN 9789 inhibited the biosynthesis of total carotenoids and the development of typical spindle-shaped chromoplasts. Both herbicides prevented the formation of tubules and increased the accumulation of plastoglobules. In SAN 9789 treated fruit, plastids contained a small number of single dilated thylakoids, while amitrole caused dilatations of the reticulum which was filled with tiny grainy material. The results are discussed with regard to the already known action of these herbicides.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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