A5019270343- Soil Carbon and Nitrogen Dynamics
- Soil and Unsaturated Flow
- Soil erosion and sediment transport
- Phytase and its Applications
- Plant responses to elevated CO2
- Microbial Community Ecology and Physiology
- Soil Management and Crop Yield
- Photosynthetic Processes and Mechanisms
- Algal biology and biofuel production
- Plant nutrient uptake and metabolism
- Genomics and Phylogenetic Studies
Rothamsted Research
2017-2020
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2013
Aix-Marseille Université
2013
Institute of Environmental Biology and Biotechnology
2013
Summary Phosphorus cycling exerts significant influence upon soil fertility and productivity – processes largely controlled by microbial activity. We adopted phenotypic metagenomic approaches to investigate phosphatase genes within soils. Microbial communities in bare fallowed showed a marked capacity utilise phytate for growth compared with arable or grassland communities. Bare contained lowest concentrations of orthophosphate. Analysis metagenomes indicated phoA , phoD phoX histidine acid...
Abstract Singlet oxygen (1O2) is a reactive species that can function as stress signal in plant leaves leading to programmed cell death. In microalgae, 1O2-induced transcriptomic changes result acclimation 1O2. Here, using chlorophyll b–less Arabidopsis thaliana mutant (chlorina1 [ch1]), we show this phenomenon also occur vascular plants. The ch1 highly photosensitive due selective increase the release of 1O2 by photosystem II. Under photooxidative conditions, gene expression profile very...
Soil delivers fundamental ecosystem functions via interactions between physical and biological processes mediated by soil structure. The structure of is also dynamic modified natural factors management intervention. aim this study was to investigate the effects different cropping systems on at contrasting spatial scales. Three were studied in replicated plot field experiments involving varying degrees plant-derived inputs soil, viz. perennial (grassland), annual (arable), no-plant control...
Bacterial Non-Specific Acid Phosphatase (NSAP) enzymes are capable of dephosphorylating diverse organic phosphoesters but rarely studied: their distribution in natural and managed environments is poorly understood. The aim this study was to generate new insight into the environmental NSAPs establish potential global relevance cycling phosphorus. We employed bioinformatic tools determine NSAP diversity subcellular localization microbial genomes; used corresponding gene sequences census...
Abstract Agricultural practices can have significant effects on the physical and biological properties of soil. The aim this study was to understand how structure a compromised soil, arising from long‐term bare‐fallow management, modified by adopting different field management practices. We hypothesized that changing agricultural arable or grassland would influence modification pore via an increase in porosity connectivity, more homogenous distribution sizes, change exerts rapid evolution...
Soil structure is an indicator of soil quality and its alterations following cropping system conversion or fertilization change evolve slowly. How such vary with scale remains elusive. We investigated this based on the Rothamsted long-term wheat experiment (since 1843) in UK. Triplicate cores 7 cm high 10 diameter were taken from plots that have been under different fertilizations returned to natural woodland for more than one century imaging using X-ray computed tomography voxel size being...
<p>Soil organic matter is associated with important biological and physical functions. There are many theories to interpret this association, as yet there not a fully developed understanding linking soil properties nutritional management in arable systems.</p><p>We used X-ray computed tomography analyse structure at the core aggregate scale on Broadbalk long term experiment (Hertfordshire, England). Here we present results of treatments that have...