Dynamics and Energetics of Nitrogen Uptake by Marine Bacteria

越来越明显的是，细菌在世界海洋的微生物食物循环中发挥着重要作用。关于微生物或原生动物在再生含氮营养物质以促进浮游植物生长方面起主要作用的问题，过去一直存在相当大的困惑。造成这种混乱的原因是缺乏关于细菌氮素吸收特性的基本信息，以及有机和无机氮源的供应和生理需求之间的关系。戈德曼博士将继续致力于解决这些根本问题。他将完成对极低生长速率下的氮动态的研究：在碳和氮限制条件下的极低底物浓度下的完整研究：检查多个碳和氮基质利用的动力学和能量学：并确定氮限制和生长速度影响细菌细胞附着形成的条件。

It has become increasingly obvious that bacteria play a major role in the microbial food loop of the world's oceans. Considerable confusion has existed in the past as to whether microbes or protozoa play the major role in regenerating nitrogenous nutrients to fuel phytoplankton growth. This confusion stems from the lack of basic information on the nitrogen uptake characteristics of bacteria and the relationship between the supply and physiological requirements of organic and inorganic sources of nitrogen. Dr. Goldman will continue his work towards addressing these fundamental questions. He will complete studies on nitrogen dynamics at very low growth rates: complete studies at very low substrate concentrations under carbon and nitrogen limiting conditions: examine the kinetics and energetics of multiple carbon and nitrogen substrate utilization: and determine the conditions under which nitrogen limitation and growth rate influence the formation of cell attachment by bacteria.