Tubular Helical Structures and Fine Filaments Associated with the Leafhopper-borne Maize Yellow Stripe Virus

(...) Some of the cells containing tubular structures also contained masses of loosely or densely packed fine fibrils. Purified preparations obtained from naturally infected leaves had typical nucleoprotein ultraviolet absorbance spectra and contained fine filaments 4-8 nm in diameter. Crystallized, apparently non-virion protein also was purified from these leaves and was serologically unrelated to the noncapsid protein of maize stripe virus (MStV). Crude extracts from infected leaves did not react with antisera to the capsid protein of MStV or to several other maize viruses and spiroplasma in enzyme-linked immunosorbent assay. Similarities and differences between MYSV and tenuiviruses (rice stripe virus group) are discussed