Extracellular matrixes (ECMs), such as the cell walls and biofilms, are important for
supporting cell integrity and function and regulating intercellular communication. These …

This paper reviews the current knowledge of microbial processes affecting C sequestration
in agroecosystems. The microbial contribution to soil C storage is directly related to …

Plant litter and the microbial biomass are the major parent materials for soil organic matter
(SOM) formation. Plant litter is composed of complex mixtures of organic components …

In this paper, we propose a structure for organo-mineral associations in soils based on
recent insights concerning the molecular structure of soil organic matter (SOM), and on …

A critical examination of published data obtained primarily from recent nuclear magnetic
resonance spectroscopy, X-ray absorption near-edge structure spectroscopy, electrospray …

From the data presented herein it is possible to deduce the following distribution of total N in
humic substances and soils: proteinaceous materials (proteins, peptides, and amino acids) …

Research pertaining to the organic fraction of soils can be traced back in excess of 200
years. Achard (1786) isolated a dark amorphous precipitate upon acidification of an alkaline …

The humic acids extracted from a compost of activated sludge at different stages of maturity
were characterized by various chemical techniques. Elemental analysis showed the …

Our environment is essential for not only the quality, but also the persistence of life on Earth.
Three of the most pressing environmental issues facing modern society are climate change …

Structural information on soil organic matter (SOM) at the molecular level can be obtained
on diverse structural units that are amenable to degradation techniques. Chemolytic …