The ocean has been a regulator of climate change throughout the history of Earth. One key
mechanism is the mediation of the carbon reservoir by refractory dissolved organic carbon …

The oceanic waters below a depth of 200 m represent, in terms of volume, the largest habitat
of the biosphere, harboring approximately 70% of the prokaryotic biomass in the oceanic …

Dissolved organic matter (DOM), a heterogeneous mixture of diverse compounds with
different molecular weights, is crucial for the lake carbon cycle. The properties and …

More than 90% of marine dissolved organic matter (DOM) is biologically recalcitrant. This
recalcitrance has been attributed to intrinsically refractory molecules or to low concentrations …

Organic matter constitutes a key reservoir in global elemental cycles. However, our
understanding of the dynamics of organic matter and its accumulation remains incomplete …

The microbial carbon pump (MCP) hypothesis suggests that successive transformation of
labile dissolved organic carbon (DOC) by prokaryotes produces refractory DOC (RDOC) and …

Despite the widespread use of photochemical and optical properties to characterize
dissolved organic matter (DOM), a significant gap persists in our understanding of the …

Carboxyl-rich alicyclic molecules (CRAMs) widely exist in the ocean and constitute the
central part of the refractory dissolved organic matter (RDOM) pool. Although a consensus …

Marine dissolved organic matter (DOM) is an important, actively cycling carbon reservoir
(662 GtC). However, the chemical structure and cycling of DOM within rapidly warming …

Lakes are expected to become more active in processing dissolved organic matter (DOM),
but the fate of DOM with different origins remains poorly constrained. We conducted long …