Interactions between yeasts, fungicides and apple fruit russeting.
The effect of inoculations with yeasts occurring on apple surfaces and fungicide treatments on the russeting of Elstar apples was studied. Captan, dithianon and a water treatment were implemented to study the interaction between the fungicides, the inoculated yeast species and Aureobasidium pullulans, and the development of russet. All yeast inoculations aggravated russet, but Rhodotorula glutinis, Sporidiobolus pararoseus and A. pullulans did so to a greater extent than the other species. Both captan and dithianon significantly reduced russeting. Denaturing gradient gel electrophoresis analysis showed that inoculations with R. glutinis and S. pararoseus seemed to suppress other yeast species present on the apple surface.
Gildemacher
Peter
P
Applied Plant Research PPO, Zetten, The Netherlands. p.gildemacher@cgiar.org
Heijne
Bart
B
Silvestri
Massimiliano
M
Houbraken
Jos
J
Hoekstra
Ellen
E
Theelen
Bart
B
Boekhout
Teun
T
D000880:Anthraquinones / Q000494:pharmacology; D002215:Captan / Q000494:pharmacology; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D004591:Electrophoresis, Polyacrylamide Gel; D005516:Food Microbiology; D005638:Fruit / Q000382:microbiology*; D005659:Fungicides, Industrial / Q000494:pharmacology*; D027845:Malus / Q000382:microbiology*; D010935:Plant Diseases / Q000382:microbiology*; D015003:Yeasts / Q000145:classification / Q000187:drug effects* / Q000502:physiology
D000880:Anthraquinones; D021903:DNA, Ribosomal Spacer; D005659:Fungicides, Industrial; C018529:dithianone; D002215:Captan