PHYSIOLOGICAL BASIS FOR WEED COMPETITION IN N2 FIXING LEGUMINOUS CROP SYSTEMS

氮固豆科作物系统中杂草竞争的生理基础

• 批准号: 6493749
• 负责人: JANET MACFALL
• 金额: $ 28.8万
• 依托单位: DUKE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6493749
• 关键词: Mammalia; biomedical resource; cardiovascular system; growth /development; human tissue; nuclear magnetic resonance spectroscopy

Mouse embryos between 8.5 and 19.5 days of gestation will be investigated on the 9.4 Tesla system. We will be testing pre-processing techniques of the embryos to determine what fixation techniques and what reaction mixes provide the most useful information for each embryo stage. Specifically, we will determine whether permeabalization and reaction with ferric and ferrous salts contribute to enhanced contrast of neural crest structures in 11.5 to 14.5 day mouse embryos. We will also search for the source of enhanced signal in developing bone as demonstrated in embryos between 14.5 days and birth. We will also scan embryos which have been perfused with Gd-BSA-DTPA to complete our time-series study of cardiovascular development in the normal embryo.

妊娠8.5天至19.5天的小鼠胚胎将会发育