ArticleBMC plant biology2001
The role of chlorophyll b in photosynthesis: hypothesis.
Article in BMC plant biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 124 citations in OpenAlex.
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- Carbon assimilation and distribution in cotton photosynthetic organs is a limiting factor affecting boll weight formation under drought.Frontiers in plant science · 2022Article
- Fine mapping of the QTL cqSPDA2 for chlorophyll content in Brassica napus L.BMC plant biology · 2020Article
- Spectral signatures of five hydroxymethyl chlorophyll a derivatives chemically derived from chlorophyll b or chlorophyll f.Photosynthesis research · 2019Article
- Heterologous synthesis of chlorophyllBiotechnology for biofuels · 2019Article
- Chloroplast vesicle transport.Photosynthesis research · 2018Review
- 3-Methylthiopropionic Acid of Rhizoctonia solani AG-3 and Its Role in the Pathogenicity of the Fungus.The plant pathology journal · 2016Article
- Arabidopsis ANGULATA10 is required for thylakoid biogenesis and mesophyll development.Journal of experimental botany · 2014Article
- Proteins affecting thylakoid morphology - the key to understanding vesicle transport in chloroplasts?Plant signaling & behavior · 2014Article
- Synthesis of chlorophyll b: localization of chlorophyllide a oxygenase and discovery of a stable radical in the catalytic subunit.BMC plant biology · 2004Article
- A novel role of water-soluble chlorophyll proteins in the transitory storage of chorophyllide.Plant physiology · 2004Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe physico-chemical properties of chlorophylls b and c have been known for decades. Yet the mechanisms by which these secondary chlorophylls support assembly and accumulation of light-harvesting complexes in vivo have not been resolved. PRESENTATION: Biosynthetic modifications that introduce electronegative groups on the periphery of the chlorophyll molecule withdraw electrons from the pyrrole nitrogens and thus reduce their basicity. Consequently, the tendency of the central Mg to form coordination bonds with electron pairs in exogenous ligands, a reflection of its Lewis acid properties, is increased. Our hypothesis states that the stronger coordination bonds between the Mg atom in chlorophyll b and chlorophyll c and amino acid sidechain ligands in chlorophyll a/b- and a/c-binding apoproteins, respectively, enhance their import into the chloroplast and assembly of light-harvesting complexes. TESTING: Several apoproteins of light-harvesting complexes, in particular, the major protein Lhcb1, are not detectable in leaves of chlorophyll b-less plants. A direct test of the hypothesis--with positive selection--is expression, in mutant plants that synthesize only chlorophyll a, of forms of Lhcb1 in which weak ligands are replaced with stronger Lewis bases. IMPLICATIONS: The mechanistic explanation for the effects of deficiencies in chlorophyll b or c points to the need for further research on manipulation of coordination bonds between these chlorophylls and chlorophyll-binding proteins. Understanding these interactions will possibly lead to engineering plants to expand their light-harvesting antenna and ultimately their productivity.
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