Carbon and thiol composition of dissolved organic matter in the Pacific Ocean.

it remains unclear how marine dissolved organic matter (dom) becomes refractory, trapping large amounts of carbon in the ocean. sulfurization is suspected to be involved in dom refractability. low molecular weight (lmw) compounds are often considered as less labile dom. thiols are involved in many metabolic pathways to prevent metal and oxidative stress. the lmw thiols composition of dom was examined along the geotraces us-gp15 section in the eastern pacific ocean. we provide here dissolved organic carbon (doc) and thiols concentrations along the water column.

关于海洋溶解有机物（DOM）如何转变为抗性物质，从而在海洋中捕获大量碳的过程尚不明确。有推测认为，硫化的作用可能与DOM的抗折射性相关。低分子量（LMW）化合物通常被视为较不活泼的DOM。硫醇在许多代谢途径中发挥作用，以防止金属和氧化应激。本研究在东太平洋的Geotraces US-GP15航线上对DOM的低分子量硫醇组成进行了考察。在此，我们提供了沿水柱的溶解有机碳（DOC）和硫醇浓度数据。