Dynamics and Energetics of Nitrogen Uptake by Marine Bacteria in Continuous Culture

这是一个为期两年的连续赠款戈德曼博士的 伍兹霍尔海洋研究所。 这一新奖项将支持 他对海洋细菌在海洋表面作用的研究 海洋氮循环 在这项实验室研究中，选择 细菌将在不同氮含量的恒化器中生长 营养制度。 碳氮组成 将改变底物以确定对细菌的影响。 组成、生长效率和氮再生， 氨基酸、铵、硝酸盐和尿素。 虽然似乎 氮的有效性控制着生物生产力 海洋表层水，这种限制的机制 不断地为植物生长提供养分 （再生）仍不清楚。 这是其中一个支持的 研究将有助于更清楚地了解 微生物循环及其在海洋生产力中的作用。

This is a two year continuing grant to Dr. Goldman of the Woods Hole Oceanographic Institute. This new award will support his studies on the the role of marine bacteria in the surface ocean nitrogen cycle. In this laboratory study, selected bacteria will be grown in chemostats under varying nitrogenous nutrient regimes. The carbon : nitrogen compostition of the substrate will be varied to ascertain the effect on bacterial composition, growth efficiency and nitrogen regeneration using amino acids, ammonium, nitrate and urea. Although it appears that nitrogen availability controls the biological productivity of surface ocean water, the mechanisms by which this limiting nutrient is continually made available for plant growth (regenerated) remain unclear. This is one of the supported studies that will contribute to a clearer understanding of the microbial loop and its role in ocean productivity.