Filters: Tags: Fractionation (X)57 results (40ms)
Observation and long-term monitoring of Mediterranean ecosystems with satellite remote sensing and GIS
Development of a simple method for the recovery of recombinant proteins from the escherichia coli periplasm
Organic carbon and nitrogen content associated with colloids and suspended particulates from the Mississippi River and some of its tributaries
Enantioselectivity of Pseudomonas cepacia and Candida rugosa lipases for the resolution of secondary alcohols: the effect of Candida rugosa isoenzymes
Detection of c-rel -related transcripts in mouse hematopoietic tissues, fractionated lymphocyte populations, and cell lines.
Influence of organic amendments on copper distribution among particle-size and density fractions in Champagne vineyard soils
Application of polyamide column to the concentration and fractional analysis of some organic compounds responsible for environmental water pollution
Identification of estrogenic chemicals in STW effluent. 1. Chemical fractionation and in vitro biological screening
Whole-plant and leaf nitrogen isotope composition are determined by the isotope ratio of the external nitrogen source and physiological mechanisms within the plant. Whole-plant isotope composition can reflect that of the nitrogen source when plant demand exceeds nitrogen supply. Uptake by mycorrhizae can cause the isotope ratio of the plant to deviate from the source. Intra-plant variation in isotope composition can be caused by multiple assimilation events, organ-specific loss of nitrogen, and resorption and reallocation of nitrogen. Future work must address acquisition of organic nitrogen from the soil solution, the role of mycorrhizae, and internal transformations within the plant. Published in Trends in Plant...