Biosynteza chlorofilu: dwa mechanizmy redukcji protochlorofilidu

• Authors: Beata Myśliwa-Kurdziel , Michał Gabruk

Title variants

EN

Chlorophyll biosynthesis: two mechanisms of protochlorophyllide reduction

• Languages of publication: PL EN

Abstracts

PL

W pracy podsumowano obecny stan wiedzy na temat dwu istniejących w przyrodzie mechanizmów reakcji redukcji protochlorofilidu do chlorofilidu. Redukcja protochlorofilidu jest jedną z ostatnich reakcji szlaku biosyntezy chlorofili i bakteriochlorofili - podstawowych barwników fotosyntetycznych. Reakcja ta może zachodzić w sposób niezależny od światła, katalizowany przez niezależną od światła reduktazę protochlorofilidu (DPOR) lub w procesie indukowanym światłem i katalizowanym przez zależną od światła oksydoreduktazę protochlorofilidu (LPOR). Mimo iż katalizują tę samą reakcję, enzymy LPOR i DPOR nie są spokrewnione, kodowane są przez różne geny, posiadają inną budowę cząsteczki oraz charakteryzuje je inny mechanizm katalizowanej reakcji.

EN

In the present paper, the current state of knowledge about two existing in nature mechanisms for the reduction of protochlorophyllide to chlorophyllide is presented. This reaction, which is a penultimate step of chlorophyll biosynthesis, can occur by either light-dependent or light-independent mechanisms, catalysed by light-dependent protochlorophyllide oxidoreductase (LPOR) or light-independent protochlorophyllide oxidoreductase (DPOR), respectively. LPOR and DPOR are completely different in their genes, protein structure and catalytic mechanism.

• Journal: Kosmos
• Year: 2011
• Volume: 60
• Issue: 3-4
• Pages: 435-444

Dates

published

2011

Contributors

author

Beata Myśliwa-Kurdziel

• Zakład Fizjologii i Biochemii Roślin, Wydział Biochemii Biofizyki i Biotechnologii UJ, Gronostajowa 7, 30-387 Kraków, Polska

author

Michał Gabruk

• Zakład Fizjologii i Biochemii Roślin, Wydział Biochemii Biofizyki i Biotechnologii UJ, Gronostajowa 7, 30-387 Kraków, Polska

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