%0 Journal Article %A Motoyoshi, F. %A Bancroft, J. B. %A Watts, J. W. %T A Direct Estimate of the Number of Cowpea Chlorotic Mottle Virus Particles Absorbed by Tobacco Protoplasts that become Infected %D 1973 %J Journal of General Virology, %V 21 %N 1 %P 159-161 %@ 1465-2099 %R https://doi.org/10.1099/0022-1317-21-1-159 %I Microbiology Society, %X SUMMARY At the most, 760 cowpea chlorotic mottle virus particles are sufficient to infect a tobacco protoplast. %U https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-21-1-159