Smith V H, Pippin D J
Environmental Studies Program, Department of Systematics and Ecology, University of Kansas, Lawrence, USA.
Eur J Oral Sci. 1998 Apr;106(2 Pt 1):605-15. doi: 10.1046/j.0909-8836..t01-4-.x.
The ability to compete for the limited nutrients available to the microorganisms of dental plaque is a strong ecological determinant of the structure of the subgingival ecosystem. This paper introduces a new concept from the field of ecology, resource-ratio theory, and applies it to the dynamics of microbial dental plaque with emphasis on the putative periodontal pathogens. Resource-ratio theory is a mechanistic theory of resource competition that utilizes pairs of growth-limiting nutrients in a stoichiometric fashion to predict zones of competitive dominance, exclusion, and coexistence for organisms competing for these resources. Once these resource pairs are identified for plaque organisms, resource-ratio theory may provide predictions of changes in the microbial community structure of plaque based on directional changes in their resource supply ratios.
争夺牙菌斑微生物可利用的有限营养物质的能力，是龈下生态系统结构的一个重要生态决定因素。本文引入了生态学领域的一个新概念——资源比率理论，并将其应用于微生物牙菌斑的动态变化，重点关注假定的牙周病原体。资源比率理论是一种资源竞争的机制理论，它以化学计量方式利用成对的生长限制营养物质，来预测竞争这些资源的生物体的竞争优势、排斥和共存区域。一旦确定了牙菌斑生物体的这些资源对，资源比率理论就可以根据其资源供应比率的定向变化，对牙菌斑微生物群落结构的变化做出预测。
