Prochlorophytes: The ‘Other’ Cyanobacteria?

Matthijs, H.C.P.; Staay, G.W.M. van der; Mur, Luuc R.

doi:10.1007/978-94-011-0227-8_3

Cited by 35 publications

(8 citation statements)

References 65 publications

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“…data). P. hollandica, originally isolated from the lake in 1986 (Burger-Wiersma et al 1986), does not contain phycobilins and has little Chl b (Matthijs et al 1994). The population density of eukaryotic algae, mainly comprising diatom and green algal species, is relatively low and mostly well below 15 ϫ 10 3 ml Ϫ1 .…”

Section: Methodsmentioning

confidence: 99%

Using the hidden isotopic heterogeneity in phyto‐ and zooplankton to unmask disparity in trophic carbon transfer

Pel

Hoogveld

Floris

2003

Limnology & Oceanography

103

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In this study, we show that natural phototrophic populations can be probed individually for their in situ ␦ 13 C signature by linking fluorescence-activated cell sorting and isotope-ratio mass spectrometry (IRMS) using in-line pyrolytic methylation. This novel methodology greatly improved the resolution in discriminating and tracing the differential carbon (C) pathways at the base of the pelagic food web in the cyanobacteria-dominated Lake Loosdrecht (The Netherlands). Our analysis revealed the co-occurrence of phytoplankton taxa differing by 6-10‰ in ␦ 13 C. Predominant micro-and mesozooplankton species reflected this difference as the result of preferential grazing and/ or selective digestion. Flow cytometric (FCM) retrieval of phytoplankton ␦ 13C signatures, applied in conjunction with 13 C-carbonate labeling, also enabled an assessment of in situ population-specific growth rates. Diatoms and green algae exhibited up to ninefold higher growth rates than those for cyanobacterial species. The coexistence of phytoplankton populations widely differing in ␦ 13 C, standing stock, and turnover time has important implications for the interpretation of C transfer in pelagic food webs. Our approach disclosed a disproportional impact on trophic cascades by numerically minor phototrophs that otherwise would have gone unnoticed. Despite the abundance of cyanobacterial-derived C, the zooplankton largely rely on eukaryotic algae for growth. Rotifers take a central position in passing on this algal C to the cyclopoid copepod populations in the lake. The bosminid-dominated cladoceran population uses both the cyanobacterial-and algal-derived C in approximately equal shares.

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Section: Methodsmentioning

confidence: 99%

Using the hidden isotopic heterogeneity in phyto‐ and zooplankton to unmask disparity in trophic carbon transfer

Pel

Hoogveld

Floris

2003

Limnology & Oceanography

103

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“…This group differs from other cyanobacteria in their photosynthetic pigment composition, lacking the characteristic phycobilins, while possessing both chlorophylls a and b, as in higher plants and green algae. Thus, and even though in other aspects the Prochlorophytes are quite similar to cyanobacteria, they have not always been regarded as cyanobacteria (reviewed in (Matthijs et al, 1994;Lewin, 2002). Several thin-section and freeze-fracture studies reveal that the thylakoids in some species that belong to this group are organized differently than those of typical cyanobacteria.…”

Section: A Cyanobacterial Thylakoid Networkmentioning

confidence: 96%

Architecture of Thylakoid Membrane Networks

Nevo

Chuartzman

Tsabari

et al. 2009

Advances in Photosynthesis and Respiration

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“…Cyanobacteria and prochlorophytes are the only prokaryotic organisms known to perform oxygenic photosynthesis (58,129). Cyanobacteria have evolved different mechanisms and strategies, ranging from fixing nitrogen only under anoxic conditions to temporal or even spatial separation of nitrogen fixation and oxygen evolution, to protect their nitrogen-fixing machinery not only from atmospheric oxygen but also from the intracellularly generated oxygen (for reviews, see references 22, 26, 56, 140, 188, 220, and 221).…”

Section: Nitrogenasesmentioning

confidence: 99%

Hydrogenases and Hydrogen Metabolism of Cyanobacteria

Tamagnini

Axelsson

Lindberg

et al. 2002

Microbiol Mol Biol Rev

467

372

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Cyanobacteria may possess several enzymes that are directly involved in dihydrogen metabolism: nitrogenase(s) catalyzing the production of hydrogen concomitantly with the reduction of dinitrogen to ammonia, an uptake hydrogenase (encoded by hupSL) catalyzing the consumption of hydrogen produced by the nitrogenase, and a bidirectional hydrogenase (encoded by hoxFUYH) which has the capacity to both take up and produce hydrogen. This review summarizes our knowledge about cyanobacterial hydrogenases, focusing on recent progress since the first molecular information was published in 1995. It presents the molecular knowledge about cyanobacterial hupSL and hoxFUYH, their corresponding gene products, and their accessory genes before finishing with an applied aspect—the use of cyanobacteria in a biological, renewable production of the future energy carrier molecular hydrogen. In addition to scientific publications, information from three cyanobacterial genomes, the unicellular Synechocystis strain PCC 6803 and the filamentous heterocystous Anabaena strain PCC 7120 and Nostoc punctiforme (PCC 73102/ATCC 29133) is included

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Prochlorophytes: The ‘Other’ Cyanobacteria?

Cited by 35 publications

References 65 publications

Using the hidden isotopic heterogeneity in phyto‐ and zooplankton to unmask disparity in trophic carbon transfer

Using the hidden isotopic heterogeneity in phyto‐ and zooplankton to unmask disparity in trophic carbon transfer

Architecture of Thylakoid Membrane Networks

Hydrogenases and Hydrogen Metabolism of Cyanobacteria

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