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red shifted light harvesting system of freshwater eukaryotic alga trachydiscus minutus eustigmatophyta stramenopila

descriptionPublicationkeyboard_double_arrow_right Article 02 Aug 2019Publisher:Springer Science and Business Media LLCJournal:Photosynthesis Research, volume 142, pages 137-151 (issn: 0166-8595, eissn: 1573-5079,

Authors: Ondřej Prášil; Ondřej Prášil; Eva Kotabová; Eva Kotabová; Radek Litvín; Radek Litvín; František Vácha; +10 Authors

doi: 10.1007/s11120-019-00662-5

pmid: 31375979

red shifted light harvesting system of freshwater eukaryotic alga trachydiscus minutus eustigmatophyta stramenopila

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Abstract

Survival of phototrophic organisms depends on their ability to collect and convert enough light energy to support their metabolism. Phototrophs can extend their absorption cross section by using diverse pigments and by tuning the properties of these pigments via pigment-pigment and pigment-protein interaction. It is well known that some cyanobacteria can grow in heavily shaded habitats by utilizing far-red light harvested with far-red-absorbing chlorophylls d and f. We describe a red-shifted light-harvesting system based on chlorophyll a from a freshwater eustigmatophyte alga Trachydiscus minutus (Eustigmatophyceae, Goniochloridales). A comprehensive characterization of the photosynthetic apparatus of T. minutus is presented. We show that thylakoid membranes of T. minutus contain light-harvesting complexes of several sizes differing in the relative amount of far-red chlorophyll a forms absorbing around 700 nm. The pigment arrangement of the major red-shifted light-harvesting complex is similar to that of the red-shifted antenna of a marine alveolate alga Chromera velia. Evolutionary aspects of the algal far-red light-harvesting complexes are discussed. The presence of these antennas in eustigmatophyte algae opens up new ways to modify organisms of this promising group for effective use of far-red light in mass cultures.

Related Organizations

Sewanee: The University of the South
United States
Czech Academy of Sciences
Czech Republic
University of South Bohemia in České Budějovice
Czech Republic

Keywords

Spectrometry, Fluorescence, Light, Diuron, Light-Harvesting Protein Complexes, Temperature, Membrane Proteins, Fresh Water, Pigments, Biological, Thylakoids, Stramenopiles

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RESPONSE OF TRACHYDISCUS MINUTUS (XANTHOPHYCEAE) TO TEMPERATURE AND LIGHT¹
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Trachydiscus minutus, a new biotechnological source of eicosapentaenoic acid
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Stanovení optimálních podmínek pro růst buněk a akumulaci zásobních lipidů řasy Trachydiscus minutus
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Trachydiscus guangdongensis sp. nov., a new member of Eustigmatophyceae (Stramenopiles) isolated from China: morphology, phylogeny, fatty acid profile, pigment, and cell wall composition
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Effect of nitrogen and phosphorus starvation on the polyunsaturated triacylglycerol composition, including positional isomer distribution, in the alga Trachydiscus minutus
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Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	13
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
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Fields of Science

medical and health sciences

basic medicine

Fields of Science

medical and health sciences

basic medicine

Related to Research communities

UArctic

red shifted light harvesting system of freshwater eukaryotic alga trachydiscus minutus eustigmatophyta stramenopila

red shifted light harvesting system of freshwater eukaryotic alga trachydiscus minutus eustigmatophyta stramenopila

6 Research products, page 1 of 1

Způsob kultivace kmenů mikrořas

RESPONSE OF TRACHYDISCUS MINUTUS (XANTHOPHYCEAE) TO TEMPERATURE AND LIGHT1

Trachydiscus minutus, a new biotechnological source of eicosapentaenoic acid

Stanovení optimálních podmínek pro růst buněk a akumulaci zásobních lipidů řasy Trachydiscus minutus

Trachydiscus guangdongensis sp. nov., a new member of Eustigmatophyceae (Stramenopiles) isolated from China: morphology, phylogeny, fatty acid profile, pigment, and cell wall composition

Effect of nitrogen and phosphorus starvation on the polyunsaturated triacylglycerol composition, including positional isomer distribution, in the alga Trachydiscus minutus

RESPONSE OF TRACHYDISCUS MINUTUS (XANTHOPHYCEAE) TO TEMPERATURE AND LIGHT¹