Premium
Multiplication and spread of pathovars of Xanthomonas campestris in host and non‐host plants
Author(s) -
ROBINSON J. N.,
CALLOW J. A.
Publication year - 1986
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1986.tb02001.x
Subject(s) - biology , xanthomonas campestris , poaceae , host (biology) , oryza sativa , population , botany , brassica oleracea , ecology , bacteria , gene , genetics , demography , sociology
Multiplication and spread of respresentative strains of three pathovars of Xanthomonas campestris were monitored by maceration and plating from inoculated leaves of the host and non‐host plant species Oryza sativa, Poa trivialis, Brassica oleracea and Phleum pratense. Homologous interactions were characterized by higher multiplication rates and larger population increases than heterologous interactions, except for pv. oryzae which increased as much as pv. poae in leaves of Poa. Spread of heterologous pathovars was limited, but homologous pathovars were distributed throughout host leaves soon after inoculation. Pvs poae and oryzae (from Poaceae) demonstrated considerably greater population increases and higher initial multiplication rates than pv. campestris in leaves of all non‐host Poaceae. Pv. poae spread further into leaves of Oryza and pv. oryzae further into leaves of Poa and Phleum than did pv. campestris. Numbers of pv. poae declined in Brassica as did those of pv. oryzae , which was localized within 2 mm of the point of inoculation.