Publications by authors named "J Bhatnagar"
Ectomycorrhizal fungi (EMF) play a crucial role in facilitating plant nutrient uptake from the soil although inorganic nitrogen (N) can potentially diminish this role. However, the effect of inorganic N availability and organic matter on shaping EMF-mediated plant iron (Fe) uptake remains unclear. To explore this, we performed a microcosm study on Pinus taeda roots inoculated with Suillus cothurnatus treated with +/-Fe-coated sand, +/-organic matter, and a gradient of NHNO concentrations.
View Article and Find Full Text PDFAnthropogenic nitrogen (N) deposition is unequally distributed across space and time, with inputs to terrestrial ecosystems impacted by industry regulations and variations in human activity. Soil carbon (C) content normally controls the fraction of mineralized N that is nitrified (ƒ), affecting N bioavailability for plants and microbes. However, it is unknown whether N deposition has modified the relationships among soil C, net N mineralization, and net nitrification.
View Article and Find Full Text PDFArticle Synopsis
- * Between July 2023 and January 2024, California reported six RMSF cases linked to exposure in Tecate, Mexico, raising concerns as it was previously not identified as a high-risk area, and three of these cases were fatal.
- * Effective detection of RMSF cases necessitated collaborative efforts among various public health agencies, highlighting the need for increased awareness among healthcare providers to enable quicker diagnoses and treatments on both sides of the U.S.-Mexico border.
Article Synopsis
- - Bartonella quintana can lead to serious health issues, including endocarditis and chronic infections, and is mainly spread by body lice, particularly in homeless populations.
- - A case study in the U.S. highlighted two kidney transplant recipients who contracted the infection from an organ donor who was homeless; one case was atypical while the other showed mild symptoms.
- - Timely detection and treatment allowed both recipients to recover, emphasizing the importance of assessing organ donors' living conditions, specifically those with a history of homelessness or lice infestations, for potential B. quintana infections in transplant recipients.
Article Synopsis
- Bartonella quintana infection can cause serious health issues like bacillary angiomatosis and culture-negative endocarditis, mainly affecting individuals who are homeless.
- In a study conducted in New York City between January 2020 and November 2023, five cases of left-sided, culture-negative endocarditis were identified in unsheltered homeless persons using molecular methods.
- Most patients had serious complications and a history of body louse exposure, highlighting the need for clinicians to consider housing status and potential lice infestation when diagnosing and treating suspected cases.