R. Grosch et al., Use of Bacillus subtilis as a biocontrol agent. III. Influence of Bacillussubtilis on fungal root diseases and on yield in soilless culture, Z PFLANZENK, 106(6), 1999, pp. 568-580
Citations number
39
Categorie Soggetti
Plant Sciences
Journal title
ZEITSCHRIFT FUR PFLANZENKRANKHEITEN UND PFLANZENSCHUTZ-JOURNAL OF PLANT DISEASES AND PROTECTION
Different Bacillus subtilis strains, isolated from soil infected with soil-
borne pathogens, were tested against Pythium aphanidermatum and Phytophthor
a nicotianae in soilless tomato and cucumber culture systems.
The B. subtilis strains tested varied in their efficacy. but none caused a
constitutive suppression of the introduced root Pathogens during the cultiv
ation period Bacterization of tomato plants with the B. subtilis strains FZ
B 13, FZB 24 and FZB 44 at the beginning of disease development reduced dis
ease severin caused by P. aphanidermatum.
Yield losses caused by these pathogens on tomato and cucumber could be part
ially compensated by bacterization with the B. subtilis strains FZB 13 and
FZB 44. The bacterization of tomato plants with the B. subtilis strains FZB
13 and FZB 44 improved the total yield in the treatments without pathogen
infection compared to the control.
B. subtilis strains that show antifungal activity may act by inducing toler
ance in the host plant.