Separation of Photosystems I and II from the oxychlorobacterium (prochlorophyte) Prochlorothrix hollandica and association of chlorophyll b binding antennae with Photosystem II

Staay, G.W.M. van der; Brouwer, Annet; Baard, Robert L.; Mourik, Frank van; Matthijs, H.C.P.

doi:10.1016/0167-4838(92)90513-d

Cited by 5 publications

(2 citation statements)

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“…The analysis of sedimentary pigments was modified from the method described by Van der Staay et al (1992). Pigments from approximately 100 mg of freeze-dried and homogenized sediment were extracted in a solution of 80% acetone, 15% methanol, and 5% MilliQ water after grinding the sediment in a Mini BeadBeater (BioSpec products) with 0.5-mm silica beads and incubation at 4°C for 12 h. After addition of an ion-pair mix (1.5% tributyl ammonium acetate and 7.7% ammonium acetate), the samples were mixed, centrifuged, and the supernatants were stored at −20°C until HPLC analysis.…”

Section: Fossil Pigment Analysismentioning

confidence: 99%

A deadly cocktail: How a drought around 4200 cal. yr BP caused mass mortality events at the infamous ‘dodo swamp’ in Mauritius

et al. 2015

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Section: Fossil Pigment Analysismentioning

confidence: 99%

A deadly cocktail: How a drought around 4200 cal. yr BP caused mass mortality events at the infamous ‘dodo swamp’ in Mauritius

et al. 2015

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“…Among the carotenoids in P. hollandica PCC 9006 are β-carotene and zeaxanthin (van der Staay et al, 1992 ). The content of β-carotene in P. hollandica PCC 9006 is four times that of zeaxanthin.…”

Section: Energy Assimilationmentioning

confidence: 99%

Cyanobacteria of the Genus Prochlorothrix†

Pinevich¹,

Величко²,

Ivanikova³

2012

Front. Microbio.

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Green cyanobacteria differ from the blue–green cyanobacteria by the possession of a chlorophyll-containing light-harvesting antenna. Three genera of the green cyanobacteria namely Acaryochloris, Prochlorococcus, and Prochloron are unicellular and inhabit marine environments. Prochlorococcus marinus attracts most attention due to its prominent role in marine primary productivity. The fourth genus Prochlorothrix is represented by the filamentous freshwater strains. Unlike the other green cyanobacteria, Prochlorothrix strains are remarkably rare: to date, living isolates have been limited to two European locations. Taking into account fluctuating blooms, morphological resemblance to Planktothrix and Pseudanabaena, and unsuccessful attempts to obtain enrichments of Prochlorothrix, the most successful strategy to search for this cyanobacterium involves PCR with environmental DNA and Prochlorothrix-specific primers. This approach has revealed a broader distribution of Prochlorothrix. Marker genes have been found in at least two additional locations. Despite of the growing evidence for naturally occurring Prochlorothrix, there are only a few cultured strains with one of them (PCC 9006) being claimed to be axenic. In multixenic cultures, Prochlorothrix is accompanied by heterotrophic bacteria indicating a consortium-type association. The genus Prochlorothrix includes two species: P. hollandica and P. scandica based on distinctions in genomic DNA, cell size, temperature optimum, and fatty acid composition of membrane lipids. In this short review the properties of cyanobacteria of the genus Prochlorothrix are described. In addition, the evolutionary scenario for green cyanobacteria is suggested taking into account their possible role in the origin of simple chloroplast.

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