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Gamma rays quickly toughen nitrogen‑fixing bacteria

Researchers at QST discovered that controlled gamma-ray mutagenesis can create heat-tolerant nitrogen-fixing bacteria in weeks, shortening development timelines. The method produces robust, climate-ready microbial products for agriculture, food processing, pharmaceuticals, and biofuel production.

SourceThe National Institutes for Quantum Science and Technology·JournalMutation Research/Fundamental and Molecular Mechanisms of Mutagenesis·TypeExperimental study·DateJan 12, 2026

DNA-directed RNA transcription may have profound adaptability

Researchers used single-cell transcriptogenomics to study the cell's defense mechanisms and found that DNA-directed RNA transcription can exclude ENU-mutated alleles, preventing them from being expressed. This novel mechanism may provide a new approach to understanding aging and disease.

SourceElsevier·JournalMutation Research/Genetic Toxicology and Environmental Mutagenesis·DateMar 11, 2015

ChIP-Seq, Drosophila targeted mutagenesis featured in Cold Spring Harbor Protocols

The article describes a new approach for targeted mutagenesis in Drosophila melanogaster using ChIP-Seq analysis. The SIRT method combines homologous recombination, site-specific integration, and bacterial recombineering to facilitate efficient genetic variants at specific loci. This novel technique enables researchers to investigate g...

SourceCold Spring Harbor Laboratory·JournalCold Spring Harbor Protocols·DateJun 1, 2009

Misreading of damaged DNA may spur tumor formation

Researchers have discovered that cells can turn on tumor-promoting growth circuits as a result of misreading damaged DNA without copying it. The results suggest that DNA damage, if it hits certain critical genes in a cell, could lead to transcriptional mutagenesis that spurs the cell to divide.

SourceEmory Health Sciences·JournalProceedings of the National Academy of Sciences·DateNov 20, 2008