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Strong purifying selection in the silicon transporters of marine and freshwater diatoms
Strong purifying silicon transporters of marine freshwater diatoms
2014/4/22
Marine and freshwater diatoms show several important differences in silicon physiology. In addition to containing an order of magnitude more silica in their cell walls, freshwater diatoms also appear ...
Siliceous sponges as a silicon sink: An overlooked aspect of the benthopelagic coupling in the marine silicon cycle
Siliceous sponges silicon sink bathypelagic coupling marine silicon cycle
2014/5/9
Our current understanding of the silicon (Si) cycle in the ocean assumes that diatoms dominate not only the uptake of silicic acid, but also the production and recycling of biogenic silica (BSi), and ...
Dynamics of silicon metabolism and silicon isotopic discrimination in a marine diatom as a function of pCO2
silicon metabolism and silicon isotopic discrimination marine diatom pCO2
2014/5/14
Opal accumulation rates in sediments have been used as a proxy for carbon flux, but there is poor understanding of the factors that regulate the Si quota of diatoms. Natural variation in silicon isoto...
Bacterial control of silicon regeneration from diatom detritus: Significance of bacterial ectohydrolases and species identity
Bacterial control silicon regeneration diatom detritus bacterial ecto hydrolases species identity
2014/6/10
Bacteria (and possibly archaea) accelerate silica dissolution in the sea by colonizing and enzymatically degrading the organic matrix of diatom frustules. We tested whether colonizer species compositi...