02138naa a2200277 a 450000100080000000500110000800800410001910000180006024501700007826000090024852013120025765000230156965000140159265000160160665000210162265000130164365000240165665000220168065000110170265000110171365000220172465000270174670000210177370000160179477300500181019426212012-12-14       2012    bl uuuu     u00u1 u    #d1 aCORREA, E. B.  aBiological control of root rot caused by Pythium aphanidermatum and growth promotion in hydroponic cucumber with microorganisms from mangrove.h[electronic resource]  c2012  aABSTRACT: The prospection of biological control agents in similar environments to the microbe application improves the chances of microorganisms establishment added to the environment. The low survival of these beneficial microorganisms added to hydroponic environment is a problem for the growth promotion and root rot biological control success in hydroponic crops. Because of the environmental similarity between hydroponic systems and mangrove ecosystems, the aim of this work was to evaluate the ability of mangrove microbes to control root rot caused by Pythium aphanidermatum and to improve plant growth in hydroponic cucumbers. Among the 28 strains evaluated for disease control in small-hydroponic system using cucumber seedlings, Gordonia rubripertincta SO-3B-2 alone or in combination with Pseudomonas stutzeri (MB-P3A- 49, MB-P3-C68 and SO-3L-3), and Bacillus cereus AVIC-3-6 increased the seedlings survival and were subsequently evaluated in hydroponic cucumbers in a greenhouse. Bacillus cereus AVIC-3-6 protected the plants from stunting caused by the pathogen and Gordonia rubripertincta SO-3B-2 and Pseudomonas stutzeri MB-P3A-49 increased the plant growth. We concluded that microorganisms from mangroves are useful as biocontrol agents and for improving plant growth in hydroponic crops.  aBiological control  aCucumbers  aHydroponics  aMangrove forests  aRoot rot  aControle biológico  aDoença de planta  aMangue  aPepino  aPodridão da raiz  aPythium aphanidermatum1 aGALVAO, J. A. H.1 aBETTIOL, W.  tIOBC- WPRS Bulletingv. 78, p. 177-181, 2012.