Publications by authors named "Mathilde Tancelin"
In mature symbiotic root nodules, differentiated rhizobia fix atmospheric dinitrogen and provide ammonium to fulfill the plant nitrogen (N) demand. The plant enables this process by providing photosynthates to the nodules. The symbiosis is adjusted to the whole plant N demand thanks to systemic N signaling controlling nodule development.
View Article and Find Full Text PDFLegumes of the Fabeae tribe form nitrogen-fixing root nodules resulting from symbiotic interaction with the soil bacteria symbiovar (). These bacteria are all potential symbionts of the Fabeae hosts but display variable partner choice when co-inoculated in mixture. Because partner choice and symbiotic nitrogen fixation mostly behave as genetically independent traits, the efficiency of symbiosis is often suboptimal when Fabeae legumes are exposed to natural populations present in soil.
View Article and Find Full Text PDFArticle Synopsis
- The study investigates nuclear bodies in mammalian cell nuclei and their role in organizing chromatin, using a method called HRS-seq to identify genomic regions linked to large ribonucleoprotein complexes.
- Research using mouse embryonic stem cells reveals that these regions are primarily associated with highly expressed genes and regulatory sequences like super-enhancers.
- The findings support the idea that these chromosomal regions contribute to the organization of active chromatin and are involved in transcription control through a process called phase separation.