10 Result(s)
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Article
Volatile apocarotenoid discovery and quantification in Arabidopsis thaliana: optimized sensitive analysis via HS-SPME-GC/MS
In the field of carotenoid metabolism researchers’ focus has been directed recently toward the discovery and quantification of carotenoid cleavage products (i.e. apocarotenoids, excluding the well-studied caro...
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Article
Convergence of mitochondrial and chloroplastic ANAC017/PAP-dependent retrograde signalling pathways and suppression of programmed cell death
The energy-converting organelles mitochondria and chloroplasts are tightly embedded in cellular metabolism and stress response. To appropriately control organelle function, extensive regulatory mechanisms are ...
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Article
Alternative splicing, activation of cryptic exons and amino acid substitutions in carotenoid biosynthetic genes are associated with lutein accumulation in wheat endosperm
Endosperm carotenoid content in wheat is a primary determinant of flour colour and this affects both the nutritional value of the grain and its utility for different applications. Utilising wheat rice synteny ...
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Article
Quantification of cyclic electron flow around Photosystem I in spinach leaves during photosynthetic induction
The variation of the rate of cyclic electron transport around Photosystem I (PS I) during photosynthetic induction was investigated by illuminating dark-adapted spinach leaf discs with red + far-red actinic li...
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Article
A simple chlorophyll fluorescence parameter that correlates with the rate coefficient of photoinactivation of Photosystem II
A method of partitioning the energy in a mixed population of active and photoinactivated Photosystem II (PS II) complexes based on chlorophyll fluorescence measurements is presented. There are four energy flux...
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Chapter
The Role of Carotenoids in Energy Quenching
Photoprotection remains one of the most challenging and complex areas for research in photosynthesis. Co** with a wide range of adverse environmental conditions, especially full sunlight, is central to plant...
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Article
Photoprotection in a zeaxanthin- and lutein-deficient double mutant of Arabidopsis
When light absorption by a plant exceeds its capacity for light utilization, photosynthetic light harvesting is rapidly downregulated by photoprotective thermal dissipation, which is measured as nonphotochemic...
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Article
Antisense inhibition of the beta-carotene hydroxylase enzyme in Arabidopsis and the implications for carotenoid accumulation, photoprotection and antenna assembly
The xanthophylls are oxygenated carotenoids and are important structural components of the photosynthetic apparatus. Xanthophylls contribute to the assembly and stability of light-harvesting complex apoprotein...
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Chapter
On the Respective Roles of the Various Xanthophylls During Seedling Development and High Light Stress in Arabidopsis
Six hundred different naturally occurring carotenoids have been identified to date and this diversity is reflected in the composition of the photosynthetic apparatus of different bacterial and algal classes. H...
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Article
Characterization of a cDNA encoding the protein moiety of a putative arabinogalactan protein from Lycopersicon esculentum
The nucleotide sequence of a cDNA prepared from poly(A)+ RNA from Lycopersicon esculentum fruit codes for a protein, M r 20812, with features representative of the protein core of arabinogalactan proteins. The de...
