Viroids are tiny strands of circular, infectious RNA. They differ from viruses in that they do not have a protective protein coat and that they do not encode any proteins of their own. They are also ...

Viroid replication generates dsRNA intermediates, which are processed by Dicer into 21- to 25-nucleotide siRNAs. These siRNAs are then incorporated into siRNA – ribonuclease complexes (RISC). If the ...

Biologists mapping the human microbiome expected to find new bacteria and viruses, not entities that slip through every ...

This story is part of our series on viroids and virusoids, small infectious RNAs. The story is also the second installment in a series on hepatitis D virus, a virusoid-like pathogen that causes ...

Biologists mapping the human body have long assumed that every major kind of microscopic life inside us already had a place ...

Viruses are entities that have to infect other cells in order to replicate. They may have genomes that are made of DNA or RNA. We are still discovering new types of RNA viruses, as shown in two new ...

We may have an adequate understanding of the human body in that, well, we invented aspirin and sequenced the genome, but researchers still find out new things about the humble homo sapien all of the ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Stanford University researchers have discovered virus-like ‘lifeforms’ that ...

Theodor Diener's 1971 discovery of viroids was hard sell. The now-retired Diener, who was working as a plant pathologist with the Agricultural Research Service in Maryland, was trying to isolate the ...

A multiplex RT-PCR reaction was developed and validated for the simultaneous detection of two viruses and two viroids: grapevine fleck virus, grapevine Pinot gris virus, grapevine yellow speckle ...