RUI: Investigation of Interactions between Autotrophs and Heterotrophs in Periphyton attached to Emergent Plant Detritus and their Effects on Wetland Plant Decay

RUI：挺水植物碎屑附着的附生生物中自养生物和异养生物之间的相互作用及其对湿地植物腐烂的影响的研究

• 批准号: 0315686
• 负责人: Steven Francoeur
• 金额: --
• 依托单位: Eastern Michigan University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2007-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0315686&HistoricalAwards=false
• 关键词: RUI; Investigation; Interactions; between; Autotrophs

Wetland plants absorb and assimilate large amounts of nutrients during their growth. They also obtain large amounts of energy through photosynthesis. While wetland plants are alive, little of the nutrients and energy stored within the plants is consumed by other organisms. Instead, much of this energy and nutrients is passed on only after plant senescence and death. Thus, plant litter decomposition is an important characteristic for determining a wetland's ability to retain and transform nutrients (i.e., purify water) and its ability to sustain higher trophic levels, including wildlife. Microorganisms growing on dead plants are strongly involved in the decomposition process. Our research will measure the importance of three major types of microorganisms (bacteria, fungi, and algae) associated with emergent plant decay, and investigate how their potential interactions affect overall plant litter decomposition and nutrient cycling in wetlands. Better understanding of plant decomposition could lead to new management strategies for wetlands.

湿地植物在生长过程中吸收并吸收大量养分。他们还通过光合作用获得大量能量。虽然湿地植物还活着，但植物中储存的营养和能量很少被其他生物消耗。取而代之的是，仅在植物衰老和死亡之后，大部分能量和营养素才会传递。因此，植物垃圾分解是确定湿地保留和转化营养（即净化水）及其维持更高营养水平（包括野生动植物）的能力的重要特征。生长在死植物上的微生物强烈参与分解过程。我们的研究将衡量与新兴植物衰变相关的三种主要类型的微生物（细菌，真菌和藻类）的重要性，并研究其潜在相互作用如何影响湿地中植物垃圾分解和营养循环。更好地了解植物分解可能会导致湿地的新管理策略。