Functional analysis of isoforms of NADPH: protochlorophyllide oxidoreductase (POR), PORB and PORC, in Arabidopsis thaliana.

@article{Masuda2003FunctionalAO,
  title={Functional analysis of isoforms of NADPH: protochlorophyllide oxidoreductase (POR), PORB and PORC, in Arabidopsis thaliana.},
  author={Tatsuru Masuda and Naoki Fusada and Naoki Oosawa and Ken'ichi Takamatsu and Yoshiharu Y. Yamamoto and Masaaki Ohto and Kenzo Nakamura and K. Goto and Daisuke Shibata and Yumiko Shirano and Hiroaki Hayashi and Tomohiko Kato and Satoshi Tabata and Hiroshi Shimada and Hiroyuki Ohta and Ken-ichiro Takamiya},
  journal={Plant & cell physiology},
  year={2003},
  volume={44 10},
  pages={963-74}
}
NADPH:protochlorophyllide oxidoreductase (POR) catalyzes the light-dependent reduction of protochlorophyllide. To elucidate the physiological function of three differentially regulated POR isoforms (PORA, PORB and PORC) in Arabidopsis thaliana, we isolated T-DNA tagged null mutants of porB and porC. The mature seedlings of the mutants had normal photosynthetic competencies, showing that PORB and PORC are interchangeable and functionally redundant in developed plants. In etiolated seedlings… CONTINUE READING

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