P. Marten et al., Plant growth promotion of different cultivated plants and biological control of soil-borne phytopathogenic fungi by Bacillus subtilis strain B2g, Z PFLANZENK, 106(1), 1999, pp. 74-81
Citations number
11
Categorie Soggetti
Plant Sciences
Journal title
ZEITSCHRIFT FUR PFLANZENKRANKHEITEN UND PFLANZENSCHUTZ-JOURNAL OF PLANT DISEASES AND PROTECTION
Bacillus subtilis strain B2g was isolated from the rhizosphere of oilseed r
ape (Brassica napus L, spp. oleifera Metzg. Sinsk.). The isolate was select
ed with regard to plant growth-promoting and antifungal activities. Differe
nt variants of formulation and application of Bacillus subtilis B2g (seed t
reatment, treatment of soil with B2g-containing water-dispersable granules
or soil treatment with a spore suspension) were examined for their effect o
n plans growth and health in greenhouse tests. Plant growth-stimulating and
antifungal effects were shown irrespective of the kind of application. Iso
late B2g caused significant increases of plant growth of different cultivat
ed and ornamental plants, i.e., sunflower, cabbage and cucumber. An effecti
ve biological control was observed against different phytopathogenic fungi.
The number of Fusarium oxysporum-damaged cabbage plants was reduced after
a direct application of a B2g-spore suspension to the planting site. A soil
treatment with water dispersable granules or spore suspension and a seed t
reatment caused increases of emergence rates in Rhizoctonia solani- and Fus
arium oxysporum-inoculated variants of cabbage.