Raindrop Momentum Triggers Growth of Leaf-Associated Populations of Pseudomonas syringae on Field-Grown Snap Bean Plants.

Applied and Environmental Microbiology
S S HiranoC D Upper

Abstract

Observational and microclimate modification experiments were conducted under field conditions to determine the role of the physical environment in effecting large increases in phyllosphere population sizes of Pseudomonas syringae pv. syringae, the causal agent of bacterial brown spot disease of snap bean (Phaseolus vulgaris L.). Comparisons of daily changes in population sizes of P. syringae on three plantings of snap bean cultivar Cascade and one of cultivar Eagle with weather conditions indicated a strong association of rainfalls with periods of 1 to 3 days in duration during which increases in bacterial population sizes were greater than 10-fold and up to 1,000-fold. The effects of rain on populations of P. syringae were explored further by modifying the microclimate of bean plants in the field with polyethylene shelters to shield plants from rain and fine-mesh inert screens to modify the momentum of raindrops. After each of three separate intense rains, the greater-than-10-fold increases in population sizes of P. syringae observed on plants exposed to the rains did not occur on plants in the shelters or under the screens. The screens decreased the velocity and, thus, the momentum of raindrops but not the volume or quality o...Continue Reading

References

Sep 1, 1974·Applied Microbiology·L R MakiD R Caldwell
Feb 1, 1993·Applied and Environmental Microbiology·M Wilson, S E Lindow
Mar 1, 1989·Applied and Environmental Microbiology·S S Hirano, C D Upper
Dec 1, 1994·Applied and Environmental Microbiology·M Wilson, S E Lindow
Oct 1, 1982·Plant Physiology·S E LindowC D Upper

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Citations

Sep 7, 2000·Microbiology and Molecular Biology Reviews : MMBR·S S Hirano, C D Upper
Mar 15, 2001·Proceedings of the National Academy of Sciences of the United States of America·J H Leveau, S E Lindow
Apr 5, 2008·Canadian Journal of Microbiology·Shannon S NixJames W Buck
Oct 24, 2008·Phytopathology·L V MaddenN Ntahimpera
Oct 15, 2013·PloS One·Annemieke van der WalJohan H J Leveau
Nov 13, 2013·Journal of Food Protection·Dumitru MacarisinSadhana Ravishankar
May 16, 2006·Canadian Journal of Microbiology·Tom W AllenJames W Buck
Feb 10, 2009·Applied and Environmental Microbiology·John StavrinidesHoward Ochman
Oct 24, 2008·Phytopathology·Brian B McSpadden Gardener
Oct 24, 2008·Phytopathology·Christen D UpperMurray K Clayton
Aug 18, 1999·Proceedings of the National Academy of Sciences of the United States of America·S S HiranoC D Upper
Jan 1, 1997·Annual Review of Phytopathology·L L Kinkel
Jan 6, 2009·Journal of Applied Microbiology·J M WhippsG D Bending
Feb 22, 2008·Proceedings of the National Academy of Sciences of the United States of America·Glenn Dulla, Steven E Lindow
Mar 29, 2011·Annual Review of Phytopathology·Gwyn A Beattie
Oct 25, 2016·Ground Water·Thomas B AtherholtSandra M Goodrow
Apr 5, 2013·PLoS Pathogens·Johana C Misas-VillamilRenier A L van der Hoorn
Mar 15, 2006·Applied and Environmental Microbiology·S S HiranoC D Upper

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