Publications by authors named "Jim Harris"

Plant Growth Promoting Fungi (PGPF) hold promises for enhancing crop yield. This study delves into fungal diversity of the wheat rhizoplane across seven Moroccan agricultural regions, employing a niche-conserved strategy to construct fungal consortia (FC) exhibiting higher phosphorus (P) acquisition and plant growth promotion. This study combined culture-independent and culture-dependent methods exploring taxonomic and functional diversity in the rhizoplane of wheat plants obtained from twenty-eight zones.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines how the evolution of wheat and the use of chemical fertilizers affect the beneficial bacteria that live on its roots.
  • It found that both the type of soil and the addition of fertilizers significantly influence the composition of these bacteria, with genetic changes in wheat also playing a role.
  • The research suggests that using fertilizers decreases the presence of helpful bacteria in modern wheat, which might affect plant growth and could inform future breeding programs aimed at improving crop yields.
View Article and Find Full Text PDF
Article Synopsis
  • Microbial catabolic activity (MCA) is a way to measure how microorganisms break down organic compounds in soil, which helps evaluate its microbial functionality.
  • Various methods exist for measuring MCA, with multi-substrate-induced respiration (MSIR) being highlighted for its ability to assess microbial function and diversity based on specific carbon sources.
  • The review compares techniques, emphasizes the effectiveness of MSIR in relation to agricultural practices and soil properties, and suggests using molecular tools alongside MSIR for improved measurement of MCA.
View Article and Find Full Text PDF

The profound negative effect of inorganic chemical fertilizer application on rhizobacterial diversity has been well documented using 16S rRNA gene amplicon sequencing and predictive metagenomics. We aimed to measure the function and relative abundance of readily culturable putative plant growth-promoting rhizobacterial (PGPR) isolates from wheat root soil samples under contrasting inorganic fertilization regimes. We hypothesized that putative PGPR abundance will be reduced in fertilized relative to unfertilized samples.

View Article and Find Full Text PDF

Although bacteriophages see a revival for specifically removing undesired bacteria, there is still much uncertainty about how to achieve the most rapid and long-lasting clearance. This study investigated the lysis kinetics of three distinct environmental coliphages, reproducibly forming different plaque sizes (big, medium, and small). Lysis performance by individual phages was compared with the one obtained after simultaneous or sequential addition of all three phages.

View Article and Find Full Text PDF

There is increasing interest in urban food production for reasons of food security, environmental sustainability, social and health benefits. In developed nations urban food growing is largely informal and localised, in gardens, allotments and public spaces, but we know little about the magnitude of this production. Here we couple own-grown crop yield data with garden and allotment areal surveys and urban fruit tree occurrence to provide one of the first estimates for current and potential food production in a UK urban setting.

View Article and Find Full Text PDF

Dispersal limitation, biotic interactions, and environmental filters interact to drive plant and fungal community assembly, but their combined effects are rarely investigated. This study examines how different heathland plant and fungal colonization scenarios realized via three biotic treatments - addition of mature heathland-derived sod, addition of hay, and no additions - affect soil fungal community development over 6 yr along a manipulated pH gradient in a large-scale experiment starting from an agricultural, topsoil removed state. Our results show that both biotic and abiotic (pH) treatments had a persistent influence on the development of fungal communities, but that sod additions diminished the effect of abiotic treatments through time.

View Article and Find Full Text PDF

To limit warming to well below 2°C, most scenario projections rely on greenhouse gas removal technologies (GGRTs); one such GGRT uses soil carbon sequestration (SCS) in agricultural land. In addition to their role in mitigating climate change, SCS practices play a role in delivering agroecosystem resilience, climate change adaptability and food security. Environmental heterogeneity and differences in agricultural practices challenge the practical implementation of SCS, and our analysis addresses the associated knowledge gap.

View Article and Find Full Text PDF

There are increasing calls to provide greenspace in urban areas, yet the ecological quality, as well as quantity, of greenspace is important. Short mown grassland designed for recreational use is the dominant form of urban greenspace in temperate regions but requires considerable maintenance and typically provides limited habitat value for most taxa. Alternatives are increasingly proposed, but the biodiversity potential of these is not well understood.

View Article and Find Full Text PDF

Background: We conducted a pilot study of an intervention to facilitate patients' agenda setting in clinical consultations. The primary aim of the study was to test the feasibility of running the randomized controlled trial. A secondary objective was to assess the extent to which patient and public involvement (PPI) could contribute to the process of qualitative data analysis (QDA).

View Article and Find Full Text PDF

Disinfection aims at maximal inactivation of target organisms and the sustainable suppression of their regrowth. Whereas many disinfection efforts achieve efficient inactivation when the effect is measured directly after treatment, there are questions about the sustainability of this effect. One aspect is that the treated bacteria might recover and regain the ability to grow.

View Article and Find Full Text PDF

Change blindness is a phenomenon of visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer. To date, the effect has been produced by changing images displayed on screen as well as changing people and objects in an individual's environment. In this experiment, we combine these two approaches to directly compare the levels of change blindness produced in real-world vs.

View Article and Find Full Text PDF

Context: Landscape metrics represent powerful tools for quantifying landscape structure, but uncertainties persist around their interpretation. Urban settings add unique considerations, containing habitat structures driven by the surrounding built-up environment. Understanding urban ecosystems, however, should focus on the habitats rather than the matrix.

View Article and Find Full Text PDF

Urban expansion increases fragmentation of the landscape. In effect, fragmentation decreases connectivity, causes green space loss and impacts upon the ecology and function of green space. Restoration of the functionality of green space often requires restoring the ecological connectivity of this green space within the city matrix.

View Article and Find Full Text PDF

Basic concepts of bedside ultrasound have been discussed in two previous articles. The focus of this article is the evaluation of the renal system with bedside ultrasound.

View Article and Find Full Text PDF

Objective: To test the feasibility of running a randomised controlled trial of a preconsultation web-based intervention (Presenting Asking Checking Expressing (PACE-D)) to improve the quality of care and clinical outcomes in patients with diabetes.

Design And Setting: A feasibility study (with randomisation) conducted at outpatient diabetes clinics at two secondary care hospitals in Devon, UK.

Participants: People with diabetes (type 1 and type 2) attending secondary care general diabetes outpatient clinics.

View Article and Find Full Text PDF

Context: Connectivity is fundamental to understanding how landscape form influences ecological function. However, uncertainties persist due to the difficulty and expense of gathering empirical data to drive or to validate connectivity models, especially in urban areas, where relationships are multifaceted and the habitat matrix cannot be considered to be binary.

Objectives: This research used circuit theory to model urban bird flows (i.

View Article and Find Full Text PDF

One of the main pathways by which engineered nanoparticles (ENPs) enter the environment is through land application of waste water treatment plant (WWTP) sewage sludges. WWTP sludges, enriched with Ag and ZnO ENPs or their corresponding soluble metal salts during anaerobic digestion and subsequently mixed with soil (targeting a final concentration of 1400 and 140 mg/kg for Zn and Ag, respectively), were subjected to 6 months of ageing and leaching in lysimeter columns outdoors. Amounts of Zn and Ag leached were very low, accounting for <0.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionco2rbg94ae2ijakdrb8t8nhngr13ommg): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once