Molecular structure in soil humic substances: the new view.

By R. Sutton, G. Sposito. Environmental Science and Technology, 2005

1,241 citations recorded by the source corpus.

Subfields: Ecology, Global and Planetary Change, Soil Science

View Paper: https://www.semanticscholar.org/paper/e5323caff7dc82c938deb09784f1418848153ad3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology

1. J. Schimel
2. Sean Schaeffer
3. Stuart E. Bunn
4. M. Kainz
5. M. Bradford
6. Fen Guo
7. S. Taipale
8. J. Rasmussen

In Global and Planetary Change

1. A. Galloway
2. S. Taipale
3. J. Rasmussen
4. R. Benner
5. Michael T. Brett
6. Sean Schaeffer
7. J. Schimel
8. M. Kainz

In Soil Science

1. J. Schimel
2. M. Bradford
3. Sean Schaeffer
4. N. Sokol
5. Stuart E. Bunn
6. T. Osono
7. J. Wehr
8. Jonathan Sanderman

Citations in the corpus

• Methane emissions from wetlands: biogeochemical, microbial, and modeling perspectives from local to global scales (2013, background): “Recent work using cutting-edge technologies indicate that soil ‘humus’ is composed of ‘supramolecules’ of identifiable, low-molecular weight biopolymers held together by hydrophobic interactions and hydrogen bonds (Sutton & Sposito, 2005; Kelleher & Simpson, 2006; Lehmann et al., 2008).”
• Microbial control over carbon cycling in soil (2012, methodology): “, 2011), and is being replaced by a conceptual model in which SOM is made up of aggregates of small, but chemically defined molecules (Sutton and Sposito, 2005; Schmidt et al., 2011).”
• Vermicompost treatment differentially affects seed germination, seedling growth and physiological status of vegetable crop species (2011, background): “interesting to note, that high molecular mass humic substances are not soluble in water (Sutton and Sposito 2005).”
• Soil-carbon preservation through habitat constraints and biological limitations on decomposer activity (2008, neutral): “This is in good accordance with the observation of high amounts of N-containing biomolecular fragments in humic substances (Sutton and Sposito, 2005) and underlines the contribution of microbial products to the formation of SOM.”
• The Role of Microbial Communities in the Formation and Decomposition of Soil Organic Matter (2010, background): “In their review, Sutton and Sposito (2005) concluded that there was evidence to support a new view emerging on the nature of soil humic substances and their formation.”
• Rhizosphere humic acid interacts with root cell walls to reduce hydraulic conductivity and plant development (2010, background): “…electrostatic bonds and can be associated with mineral nutrients and small growth regulatory biomolecules which may affect plant, microbial and animal ecosystems (see comprehensive reviews and references cited by Chen and Aviad 1990; Piccolo 2001; Sutton and Sposito 2005; Steinberg et al. 2008).”
• Degradation and transformation of humic substances by saprotrophic fungi: processes and mechanisms (2007, background): “A small minority of researchers state that HAs are relatively small humic molecules that only self-assemble into apparently highMW material held together by weak dispersive forces, such as van der Waals, p-p and CH-p interactions (Piccolo 2001; Sutton & Sposito 2005).”
• Agricultural uses of plant biostimulants (2014, background): “Sutton and Sposito (2005) added the understanding that the molecular aggregations of humic substances include micellar structures, which are arrangements of organic molecules in aqueous solutions that form hydrophilic exteriors while containing hydrophobic interiors.”
• Changes in root development of Arabidopsis promoted by organic matter from oxisols (2007, background): “Recently, Sutton & Sposito (2005) reviewed the concept of structural features of HS and found no reasons to exclude biopolymers or any substances with well-defined biochemical structures as part of organic matter.”
• How important are terrestrial organic carbon inputs for secondary production in freshwater ecosystems (2017, background): “The aquatic realm is the recipient of the metabolic “leftovers” from the partial degradation of lignocellulose in the terrestrial system (Sutton & Sposito, 2005).”
• Relationship between molecular characteristics of soil humic fractions and glycolytic pathway and krebs cycle in maize seedlings (2007, background): “According to a new view of their chemistry, HS are collections of heterogeneous, relatively low molecular-mass components forming dynamic associations stabilized by hydrophobic interactions and hydrogen bonds (Piccolo et al., 1996; Piccolo and Conte, 1999; Piccolo, 2001; Sutton and Sposito, 2005).”