scholarly journals Biomarker distributions in surface sediments from the Kara and Laptev seas (Arctic Ocean): indicators for organic-carbon sources and sea-ice coverage

2013 ◽  
Vol 79 ◽  
pp. 40-52 ◽  
Author(s):  
Xiaotong Xiao ◽  
Kirsten Fahl ◽  
Ruediger Stein
Keyword(s):  
Organic Carbon ◽  
Sea Ice ◽  
Arctic Ocean ◽  
Surface Sediments ◽  
Carbon Sources ◽  
Ice Coverage ◽  
Organic Carbon Sources

Determination of particulate organic carbon sources to the surface mixed layer of the Canada Basin, Arctic Ocean

2014 ◽  
Vol 119 (2) ◽  
pp. 1084-1102 ◽  
Author(s):  
Kristina A. Brown ◽  
Fiona McLaughlin ◽  
Philippe D. Tortell ◽  
Diana E. Varela ◽  
Michiyo Yamamoto-Kawai ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Arctic Ocean ◽  
Particulate Organic Carbon ◽  
Mixed Layer ◽  
Carbon Sources ◽  
Canada Basin ◽  
Surface Mixed Layer ◽  
Organic Carbon Sources

Assimilation of various organic carbon sources by Haematococcus strains

2009 ◽  
Vol 57 (2) ◽  
pp. 231-237
Author(s):  
M. Zych ◽  
A. Stolarczyk ◽  
K. Maca ◽  
A. Banaś ◽  
K. Termińska-Pabis ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Organic Compounds ◽  
Present Experiment ◽  
Carbon Sources ◽  
Growth Conditions ◽  
Mixotrophic Growth ◽  
Naturally Occurring ◽  
Organic Carbon Sources ◽  
Secondary Carotenoids ◽  
Colour Changes

Differences in the assimilation of individual organic compounds (5 mM sugars and L-asparagine) under mixotrophic growth conditions were described for three naturally occurring Haematococcus strains.The effects of assimilation were measured by the growth intensity and size of algal cells, and the effect of colour changes in the cultures was observed. Some compounds caused the cell colouration to change from green to yellow, being the result of chlorophyll disappearance and the accumulation of yellow secondary carotenoids. In the present experiment none of the cultures turned red, thus excluding the intense accumulation of the commercially interesting carotenoid, astaxanthin.

Role of Organic Carbon Sources and Sulfate in Controlling Net Methylmercury Production in Riverbank Sediments of the South River, VA (USA)

2017 ◽  
Vol 35 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Krista M. A. Paulson ◽  
Carol J. Ptacek ◽  
David W. Blowes ◽  
W. Douglas Gould ◽  
Jing Ma ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Sources ◽  
The South ◽  
Organic Carbon Sources ◽  
Methylmercury Production

scholarly journals Modelling landscape controls on dissolved organic carbon sources and fluxes to streams

2014 ◽  
Vol 122 (2-3) ◽  
pp. 361-374 ◽  
Author(s):  
J. J. Dick ◽  
D. Tetzlaff ◽  
C. Birkel ◽  
C. Soulsby
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Sources ◽  
Organic Carbon Sources

Analysis of organic carbon sources in tropical seagrass fish: a case study of the east coast of Hainan Province

2019 ◽  
Vol 15 (8-9) ◽  
pp. 513-522 ◽  
Author(s):  
Jianguo Du ◽  
Zehao Chen ◽  
Meiling Xie ◽  
Mingru Chen ◽  
Xinqing Zheng ◽  
...  
Keyword(s):  
Organic Carbon ◽  
East Coast ◽  
Carbon Sources ◽  
Hainan Province ◽  
Organic Carbon Sources

scholarly journals Use of Combined Microautoradiography and Fluorescence In Situ Hybridization To Determine Carbon Metabolism in Mixed Natural Communities of Uncultured Bacteria from the GenusAchromatium

2000 ◽  
Vol 66 (10) ◽  
pp. 4518-4522 ◽  
Author(s):  
N. D. Gray ◽  
R. Howarth ◽  
R. W. Pickup ◽  
J. Gwyn Jones ◽  
I. M. Head
Keyword(s):  
In Situ Hybridization ◽  
Organic Carbon ◽  
Fluorescence In Situ Hybridization ◽  
Carbon Metabolism ◽  
Carbon Sources ◽  
Uncultured Bacteria ◽  
Sulfur Bacteria ◽  
Organic Carbon Sources ◽  
Natural Communities

ABSTRACT Combined microautoradiography and fluorescence in situ hybridization (FISH) was used to investigate carbon metabolism in uncultured bacteria from the genus Achromatium. All of theAchromatium species identified in a freshwater sediment from Rydal Water, Cumbria, United Kingdom, which were distinguishable only by FISH, assimilated both [14C]bicarbonate and [14C]acetate. This extends previous findings thatAchromatium spp. present at another location could only utilize organic carbon sources. Achromatium spp., therefore, probably exhibit a range of physiologies, i.e., facultative chemolithoautotrophy, mixotrophy, and chemoorganoheterotrophy, similar to other large sulfur bacteria (e.g., Beggiatoa spp.).

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