Isotopic labeling of freshwater mixotrophic algae using isotopic labeled heat-killed bacteria v1

protocols.io ◽  
2016 ◽  
Author(s):  
Ramon terrado
Keyword(s):  
Isotopic Labeling ◽  
Mixotrophic Algae

Phosphorus Dynamics in a Highly Weathered Soil as Revealed by Isotopic Labeling Techniques

2004 ◽  
Vol 68 (5) ◽  
pp. 1645-1655 ◽  
Author(s):  
E. K. Bünemann ◽  
F. Steinebrunner ◽  
P. C. Smithson ◽  
E. Frossard ◽  
A. Oberson
Keyword(s):  
Isotopic Labeling ◽  
Phosphorus Dynamics ◽  
Weathered Soil

scholarly journals Stereospecific Isotopic Labeling of Methyl Groups for NMR Spectroscopic Studies of High-Molecular-Weight Proteins

2010 ◽  
Vol 49 (11) ◽  
pp. 1958-1962 ◽  
Author(s):  
Pierre Gans ◽  
Olivier Hamelin ◽  
Remy Sounier ◽  
Isabel Ayala ◽  
M. Asunción Durá ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Isotopic Labeling ◽  
Spectroscopic Studies ◽  
Methyl Groups ◽  
High Molecular Weight Proteins

Chemical Synthesis of Ozone, Isotopic Labeling, and Redistribution

1998 ◽  
Vol 120 (34) ◽  
pp. 8711-8714 ◽  
Author(s):  
Anton Dimitrov ◽  
Konrad Seppelt ◽  
Dieter Scheffler ◽  
Helge Willner
Keyword(s):  
Chemical Synthesis ◽  
Isotopic Labeling

scholarly journals Subcellular Investigation of Photosynthesis-Driven Carbon Assimilation in the Symbiotic Reef Coral Pocillopora damicornis

mBio ◽  
2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Christophe Kopp ◽  
Isabelle Domart-Coulon ◽  
Stephane Escrig ◽  
Bruno M. Humbel ◽  
Michel Hignette ◽  
...  
Keyword(s):  
Lipid Droplets ◽  
Secondary Ion Mass Spectrometry ◽  
Reef Coral ◽  
Carbon Assimilation ◽  
Isotopic Labeling ◽  
Cellular Level ◽  
Coral Tissue ◽  
Pocillopora Damicornis ◽  
Carbon And Nitrogen ◽  
Transmission Electron

ABSTRACT  Reef-building corals form essential, mutualistic endosymbiotic associations with photosynthetic Symbiodinium dinoflagellates, providing their animal host partner with photosynthetically derived nutrients that allow the coral to thrive in oligotrophic waters. However, little is known about the dynamics of these nutritional interactions at the (sub)cellular level. Here, we visualize with submicrometer spatial resolution the carbon and nitrogen fluxes in the intact coral-dinoflagellate association from the reef coral Pocillopora damicornis by combining nanoscale secondary ion mass spectrometry (NanoSIMS) and transmission electron microscopy with pulse-chase isotopic labeling using [13C]bicarbonate and [15N]nitrate. This allows us to observe that (i) through light-driven photosynthesis, dinoflagellates rapidly assimilate inorganic bicarbonate and nitrate, temporarily storing carbon within lipid droplets and starch granules for remobilization in nighttime, along with carbon and nitrogen incorporation into other subcellular compartments for dinoflagellate growth and maintenance, (ii) carbon-containing photosynthates are translocated to all four coral tissue layers, where they accumulate after only 15 min in coral lipid droplets from the oral gastroderm and within 6 h in glycogen granules from the oral epiderm, and (iii) the translocation of nitrogen-containing photosynthates is delayed by 3 h. IMPORTANCE  Our results provide detailed in situ subcellular visualization of the fate of photosynthesis-derived carbon and nitrogen in the coral-dinoflagellate endosymbiosis. We directly demonstrate that lipid droplets and glycogen granules in the coral tissue are sinks for translocated carbon photosynthates by dinoflagellates and confirm their key role in the trophic interactions within the coral-dinoflagellate association.

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