Publications by authors named "F Fujiwara"

Article Synopsis
  • HRV44, a thermophilic chemolithoautotroph, is highly effective at converting nitrous oxide (NO) to dinitrogen gas and possesses a specific type of enzyme (NosZ) involved in this reduction process.
  • Transcriptome and proteomic analyses showed that many genes related to denitrification were active even without the presence of nitrogen oxides, suggesting a baseline readiness for NO reduction.
  • The study found that gene expression involved in electron transport to NosZ increased in response to NO within three hours, while two genes regulating this process showed negative correlations with their expression, indicating complex regulatory interactions.
View Article and Find Full Text PDF

Securing a stable food supply and achieving sustainable agricultural production are essential for mitigating future food insecurity. Soil metabolomics is a promising tool for capturing soil status, which is a critical issue for future sustainable food security. This study aims to provide deeper insights into the status of soybean-grown fields under varying soil conditions over three years by employing comprehensive soil volatile organic compound (VOC) profiling, also known as soil volatilomics.

View Article and Find Full Text PDF

In an agroecosystem, plants and microbes coexist and interact with environmental factors such as climate, soil, and pests. However, agricultural practices that depend on chemical fertilizers, pesticides, and frequent tillage often disrupt the beneficial interactions in the agroecosystem. To reconcile the improvement of crop performance and reduction in environmental impacts in agriculture, we need to understand the functions of the complex interactions and develop an agricultural system that can maximize the potential benefits of the agroecosystem.

View Article and Find Full Text PDF

Network-based assessments are important for disentangling complex microbial and microbial-host interactions and can provide the basis for microbial engineering. There is a growing recognition that chemical-mediated interactions are important for the coexistence of microbial species. However, so far, the methods used to infer microbial interactions have been validated with models assuming direct species-species interactions, such as generalized Lotka-Volterra models.

View Article and Find Full Text PDF

Objectives: To compare the pathogen identification rate and use of antibiotics before and after the implementation of multiplex polymerase chain reaction testing in children with respiratory infections in a PICU.

Design: Single-center, pre-post study.

Setting: PICU of Osaka Women's and Children's Hospital, Osaka, Japan.

View Article and Find Full Text PDF