ArticleProceedings of the National Academy of Sciences of the United States of America2001
Chlorophyll b can serve as the major pigment in functional photosystem II complexes of cyanobacteria.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 106 citations in OpenAlex.
- Review
- Chlorophyllide a Oxygenase (CAO) Gene Duplication Across the Viridiplantae.Journal of molecular evolution · 2025Article
- Regulatory and retrograde signaling networks in the chlorophyll biosynthetic pathway.Journal of integrative plant biology · 2025Review
- Anticancer impacts of the unicellular cyanobacteriumBioImpacts : BI · 2025Article
- Assignment of chlorophyll d in the ChlBiochimica et biophysica acta. Bioenergetics · 2024Article
- Hyperspectral estimation of chlorophyll density in winter wheat using fractional-order derivative combined with machine learning.Frontiers in plant science · 2024Article
- TheACS central science · 2022Article
- Rieske Oxygenase Catalyzed C-H Bond Functionalization Reactions in ChlorophyllACS central science · 2022Article
- Roles of Exogenous α-Lipoic Acid and Cysteine in Mitigation of Drought Stress and Restoration of Grain Quality in Wheat.Plants (Basel, Switzerland) · 2021Article
- Manganese Oxide Nanoparticles as Safer Seed Priming Agent to Improve Chlorophyll and Antioxidant Profiles in Watermelon Seedlings.Nanomaterials (Basel, Switzerland) · 2021Article
- Alpha Carbonic Anhydrase 5 Mediates Stimulation of ATP Synthesis by Bicarbonate in IsolatedFrontiers in plant science · 2021Article
- Genetic Engineering, Synthetic Biology and the Light Reactions of Photosynthesis.Plant physiology · 2019Review
- Cyanobacteria as an Experimental Platform for Modifying Bacterial and Plant Photosynthesis.Frontiers in bioengineering and biotechnology · 2014Article
- Spectral and functional studies on siphonaxanthin-type light-harvesting complex of photosystem II from Bryopsis corticulans.Photosynthesis research · 2013Article
- Use of EO-1 Advanced Land Imager (ALI) multispectral image data and real-time field sampling for water quality mapping in the Hirfanlı Dam Lake, Turkey.Environmental science and pollution research international · 2013Article
- Light intensity-dependent modulation of chlorophyll b biosynthesis and photosynthesis by overexpression of chlorophyllide a oxygenase in tobacco.Plant physiology · 2012Article
- Evolution of a divinyl chlorophyll-based photosystem in Prochlorococcus.Proceedings of the National Academy of Sciences of the United States of America · 2011Article
- Recent advances in understanding the assembly and repair of photosystem II.Annals of botany · 2010Review
- A role for chlorophyllide a oxygenase in the regulated import and stabilization of light-harvesting chlorophyll a/b proteins.Proceedings of the National Academy of Sciences of the United States of America · 2006Article
- The N-terminal domain of chlorophyllide a oxygenase confers protein instability in response to chlorophyll B accumulation in Arabidopsis.The Plant cell · 2005Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
An Arabidopsis thaliana chlorophyll(ide) a oxygenase gene (cao), which is responsible for chlorophyll b synthesis from chlorophyll a, was introduced and expressed in a photosystem I-less strain of the cyanobacterium Synechocystis sp. PCC 6803. In this strain, most chlorophyll is associated with the photosystem II complex. In line with observations by Satoh et al. [Satoh, S., Ikeuchi, M., Mimuro, M. & Tanaka, A. (2001) J. Biol. Chem. 276, 4293-4297], chlorophyll b was made but accounted for less than 10% of total chlorophyll. However, when lhcb encoding light-harvesting complex (LHC)II from pea was present in the same strain (lhcb(+)/cao(+)), chlorophyll b accumulated in the cell to levels exceeding those of chlorophyll a, although LHCII did not accumulate. In the lhcb(+)/cao(+) strain, the total amount of chlorophyll, the number of chlorophylls per photosystem II center, and the oxygen-evolving activity on a per-chlorophyll basis were similar to those in the photosystem I-less strain. Furthermore, the chlorophyll a/b ratio of photosystem II core particles (retaining CP47 and CP43) and of whole cells of the lhcb(+)/cao(+) strain was essentially identical, and PS II activity could be obtained efficiently by chlorophyll b excitation. These data indicate that chlorophyll b functionally substitutes for chlorophyll a in photosystem II. Therefore, the availability of chlorophylls, rather than their binding specificity, may determine which chlorophyll is incorporated at many positions of photosystem II. We propose that the transient presence of a LHCII/chlorophyll(ide) a oxygenase complex in the lhcb(+)/cao(+) strain leads to a high abundance of available chlorophyll b that is subsequently incorporated into photosystem II complexes. The apparent LHCII requirement for high chlorophyll(ide) a oxygenase activity may be instrumental to limit the occurrence of chlorophyll b in plants to LHC proteins.
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