The effects of depressed root temperatures on the systemic infection of Nicotiana tabacum L. and Lycopersicon esculentum Mill. by tobacco mosaic virus.

Bibliographic Details
Main Author:	Villalon, Benigno
Other Authors:	Fredericksen, Richard A. (degree committee member.), Krise, George M. (degree committee member.), Langston, Ruble G. (degree committee member.), Toler, Robert W. (degree committee member.)
Format:	Thesis Book
Language:	English
Published:	[College Station, Tex.], 1969.
Subjects:	Major plant pathology. Academic theses.
Online Access:	Link to ProQuest copy Link to OAKTrust copy

Description
Abstract:	A series of experiments was carried out to support or negate the hypothesis that depressed root temperatures have an immobilizing effect on the translocation of tobacco mosaic virus within tobacco and tomato plants or inhibit virus multiplication in invaded tissue. Translocation of TMV from the inoculated leaves of systemic hosts was delayed when roots were kept at 7 C. Multiplication of translocated virus was also inhibited by low temperatures as indicated by results obtained from tissue incubation prior to assay, lesion counts on cold treated local lesion host, and serological tests. The mobilization and multiplication inhibition phenomenon was inversely correlated with decrease in temperature. ...
Physical Description:	114 leaves illustrations