บทคัดย่องานวิจัย

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Suppression of cottony leak of cucumber with Bacillus cereus strain UW85.

Smith, K. P.; Havey, M. J.; Handelsman, J.;

Plant Disease Year: 1993 Vol: 77 Issue: 2 Pages: 139-142 Ref: 16 ref.

1993

บทคัดย่อ

Suppression of cottony leak of cucumber with Bacillus cereus strain UW85.

An assay was developed for postharvest rot of cucumber fruits caused by Pythium aphanidermatum. Wounded fruits were each inoculated with a suspension containing 500 zoospores of the pathogen and incubated at 32 deg C for 48 h. Undiluted culture of B. cereus str. UW85, containing c. 4.4 x 108 cells/ml, applied to fruit by 1 of 3 methods prior to inoculation with the pathogen, significantly reduced rotting (P<0.05) compared with fruit treated with uninoculated medium or water prior to inoculation with P. aphanidermatum. Culture filtrates and suspensions of UW85 containing <1.1 x 108 cells/ml did not suppress fruit rotting. UW85 cells that were washed and resuspended in sterile medium did suppress rotting.