Understanding and controlling the dynamic process of aflatoxin B (AFB) accumulation by Aspergillus flavus (A. flavus) remains challenging. In this study, the A.
View Article and Find Full Text PDFThe stability of RNA polymerase II (Pol II) is tightly regulated during transcriptional elongation for proper control of gene expression. Our recent studies revealed that promoter-proximal Pol II is destabilized via the ubiquitin E3 ligase cullin 3 (CUL3) upon loss of transcription elongation factor SPT5. Here, we investigate how CUL3 recognizes chromatin-bound Pol II as a substrate.
View Article and Find Full Text PDF-a mycotoxigenic fungus and food safety threat-coinhabits maize kernels with . This protective endophyte produces secondary metabolites of interest, pyrrocidines A and B, which inhibit the growth of and specifically block fumonisin biosynthesis. Previous transcriptomic analyses found (FVEG_00314), a gene adjacent to the fumonisin biosynthetic gene cluster, to be induced over 4,000-fold in response to pyrrocidine challenge.
View Article and Find Full Text PDFThe mycotoxigenic fungi, and , commonly co-colonize maize in the field, yet their direct interactions at the chemical communication level have not been well characterized. Here, we examined if and how the two most infamous mycotoxins produced by these species, aflatoxin and fumonisin, respectively, govern interspecies growth and mycotoxin production. We showed that fumonisin producing strains of suppressed the growth of while non-producers did not.
View Article and Find Full Text PDFUnlabelled: Policy Points A redirection of measurement in health care from a narrow focus on diseases and care processes towards assessing whole person health, as perceived by the person themself, may provide a galvanizing view of how health care can best meet the needs of people and help patients feel heard, seen, and understood by their care team. This review identifies key tensions to navigate as well as four overarching categories of whole person health for consideration in developing an instrument optimized for clinical practice. The categories (body and mind, relationships, living environment and finances, and engagement in daily life) include nine constituent domains.
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