Figure 2.

Transmission electron microscopy of TSWV particles ((a) courtesy of J. van Lent), TSWV ribonucleoproteins (RNPs) (b), RHBV tenuivirus particles (c), Emaravirus particles ((d) courtesy of K.S. Kim), and a schematical presentation of a viral ribonucleoprotein (RNP) (e). RdRp, RNA-dependent RNA polymerase (for tospoviruses also called L protein); N, nucleo(capsid)protein; potential other host-factors. Panhandle formed by complementary termini, and acting as promoter for replication–transcription, is shown in light gray at the position of the indicated N and RdRp. Size bar represents 100 nm (modified from [1]).