Abstract
SUMMARY: Graded doses of six phytopathogenic bacteria, namely Pseudomonas lachrymans, P. morsprunorum, P. phaseolicola, P. syringae, P. tabaci and P. tomato, were introduced into the leaves of one of their natural (homologous) hosts and of other (heterologous) plants. Probit slopes for the infectivity of any of the six bacteria did not exceed the value b=2 in the homologous combinations, but were much greater than 2 in the heterologous ones. In the homologous combinations, the mean probability, P, per inoculated bacterium of multiplying to induce host response was invariant to inoculum dose, d. Hence the probability, Q, that a host would not respond after inoculation with d bacteria was given by the simple exponential, Q=e-pd . In the heterologous combinations, the value of P increased with increasing d.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
