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Photosynthetica

, Volume 41, Issue 1, pp 61–67 | Cite as

Photosynthetic Characteristics of Two New Chlorophyll b-Less Rice Mutants

  • Zhi-Fang Lin
  • Chang-Lian Peng
  • Gui-Zhu Lin
  • Zhi-Ying Ou
  • Cheng-Wei Yang
  • Jing-Liu Zhang
Article

Abstract

Two yellow rice mutants VG28-1 and VG30-5 were obtained during the tissue culture process from a rice plant (cv. Zhonghua No.11 japonica) with inserted maize Ds transposon element. Absorption spectra and pigment composition showed that two mutants had no chlorophyll (Chl) b and lower Chl a content in comparison to the wild type (WT). Net photosynthetic rate (PN), total electron transport rate (JF), photochemical quenching (qp), quantum yield of PS2 dependent non-cyclic electron transport (ΦPS2), fraction of Prate, and leaf area were lower but Fv/Fm and apparent quantum yield (AQY) remained at similar levels as in the WT plant. Xanthophyll cycle pool size (V+A+Z) on a Chl basis, and de-epoxidation state were enhanced in the mutants. The mutants had larger amounts of soluble protein and ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO), especially the small subunit of RuBPCO, than WT. The characteristics of two rice mutants differed somewhat from the other common Chl b-less mutants originating from mutagenic agent treatments.

chlorophyll absorption spectrum chlorophyll accumulation and degradation carotenoids photosystem 2 activity ribulose-1,5-bisphosphate carboxylase/oxygenase thermal dissipation total electron transport rate 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Zhi-Fang Lin
    • 1
  • Chang-Lian Peng
    • 1
  • Gui-Zhu Lin
    • 1
  • Zhi-Ying Ou
    • 1
  • Cheng-Wei Yang
    • 1
  • Jing-Liu Zhang
    • 2
  1. 1.South China Institute of Botany, Chinese Academy of SciencesGuangzhouP. R. China
  2. 2.National Key Laboratory of Plant Molecular GeneticsInstitute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of SciencesShanghaiP.R. China

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