TY - JOUR
T1 - Crenarchaea and phytoplankton coupling in sedimentary archives: Common trigger or metabolic dependence?
AU - Fietz, Susanne
AU - Martínez-Garcia, Alfredo
AU - Rueda, Gemma
AU - Peck, Vicky L.
AU - Huguet, Carme
AU - Escala, Marina
AU - Rosell-Melé, Antoni
PY - 2011/9/1
Y1 - 2011/9/1
N2 - The concentrations of chlorins (chlorophyll transformation products indicative of phytoplankton production) and crenarchaeol (a marker for Crenarchaea abundance) are significantly positively correlated (Spearman's rank correlation coefficient r s. 0.75) in four core records from freshwater (Lake Baikal) and marine settings (Southern, Atlantic, and Arctic Oceans). This suggests a close relationship between Crenarchaea abundance and phytoplankton production. Degradation and transport mechanisms, as well as a common environmental trigger, may in part account for our observations, but these mechanisms alone cannot fully explain them. Instead our findings point to a metabolic dependence of Crenarchaea on resources released by phytoplankton, such as organic carbon or ammonium. © 2011, by the American Society of Limnology and Oceanography, Inc.
AB - The concentrations of chlorins (chlorophyll transformation products indicative of phytoplankton production) and crenarchaeol (a marker for Crenarchaea abundance) are significantly positively correlated (Spearman's rank correlation coefficient r s. 0.75) in four core records from freshwater (Lake Baikal) and marine settings (Southern, Atlantic, and Arctic Oceans). This suggests a close relationship between Crenarchaea abundance and phytoplankton production. Degradation and transport mechanisms, as well as a common environmental trigger, may in part account for our observations, but these mechanisms alone cannot fully explain them. Instead our findings point to a metabolic dependence of Crenarchaea on resources released by phytoplankton, such as organic carbon or ammonium. © 2011, by the American Society of Limnology and Oceanography, Inc.
U2 - 10.4319/lo.2011.56.5.1907
DO - 10.4319/lo.2011.56.5.1907
M3 - Article
VL - 56
SP - 1907
EP - 1916
JO - Limnology and Oceanography
JF - Limnology and Oceanography
SN - 0024-3590
IS - 5
ER -