Use of Pathogen Combinations to Overcome the Constraints of Temperature on Entomopathogenic Hyphomycetes against Grasshoppers

1997 ◽  
Vol 8 (2) ◽  
pp. 143-152 ◽  
Author(s):  
G.Douglas Inglis ◽  
Dan L. Johnson ◽  
K.-J. Cheng ◽  
Mark S. Goettel
Keyword(s):  
Entomopathogenic Hyphomycetes ◽  
Pathogen Combinations

Pathogen-produce pair attribution risk ranking tool to prioritize fresh produce commodity and pathogen combinations for further evaluation (P3ARRT)

Food Control ◽  
2011 ◽  
Vol 22 (12) ◽  
pp. 1865-1872 ◽  
Author(s):  
Maren Anderson ◽  
Lee-Ann Jaykus ◽  
Steve Beaulieu ◽  
Sherri Dennis
Keyword(s):  
Fresh Produce ◽  
Risk Ranking ◽  
Pathogen Combinations

Variability in susceptibility to simulated sunlight of conidia among isolates of entomopathogenic Hyphomycetes

1996 ◽  
Vol 135 (3) ◽  
pp. 171-181 ◽  
Author(s):  
J. Fargues ◽  
M. S. Goettel ◽  
N. Smits ◽  
A. Ouedraogo ◽  
C. Vidal ◽  
...  
Keyword(s):  
Simulated Sunlight ◽  
Entomopathogenic Hyphomycetes

Scanning electron microscopy of Fusarium oxysporum f.sp. lycopersici in xylem vessels of wilt-resistant and susceptible tomato plants

1980 ◽  
Vol 58 (22) ◽  
pp. 2360-2366 ◽  
Author(s):  
Erik L. Stromberg ◽  
Malcolm E. Corden
Keyword(s):  
Electron Microscopy ◽  
Hyphal Growth ◽  
Susceptible Host ◽  
Vessel Elements ◽  
Host Pathogen ◽  
Race 1 ◽  
Perforation Plates ◽  
Susceptible Tomato ◽  
Scanning Electron ◽  
Pathogen Combinations

Vessels in stems of 'Jefferson' (race 1 resistant and race 2 susceptible) and 'Bonny Best' (race 1 and 2 susceptible) tomato cultivars inoculated with Fusarium oxysporum f.sp. lycopersici race 1 or 2 were examined by scanning electron microscopy. Four days after inoculation of Jefferson with conidia of race 1, the inoculum conidia and resultant hyphae generally were collapsed, whereas in the susceptible host–pathogen combinations the inoculum conidia and hyphae appeared normal. Neither the plants of the resistant nor the susceptible host-pathogen combinations had perforation plates or tyloses within vessel elements capable of trapping conidia or effectively blocking hyphal growth. The perforation plates of all vessel elements are reduced to slightly lipped rims and thus provide unrestricted apertures for hyphal growth and conidial movement in the transpiration stream. In the susceptible host–pathogen combinations, mycelial growth often filled the vessels, but no sporulation was noted. Frequent lateral spread of the pathogen occurred between adjacent vessels through the bordered pit-pairs. Infrequent occurrence of tyloses and a lack of occlusions by tyloses in the resistant host–pathogen combination suggest that vascular wilt resistance within the stem is not due primarily to physical containment of the pathogen in the vessels. Collapsed conidia and hyphae in the resistant host–pathogen combination suggests that fungitoxic materials in the vessels suppress the pathogen and contribute to resistance.

Antimicrobial resistance in eight US hospitals along the US–Mexico border, 2000–2006

2013 ◽  
Vol 142 (11) ◽  
pp. 2378-2387 ◽  
Author(s):  
S. R. BENOIT ◽  
K. D. ELLINGSON ◽  
S. H. WATERMAN ◽  
M. L. PEARSON
Keyword(s):  
Antimicrobial Resistance ◽  
International Travel ◽  
Border Region ◽  
Quinolone Resistance ◽  
Antimicrobial Use ◽  
Oxacillin Resistance ◽  
The Us ◽  
Mexico Border ◽  
Us Mexico Border ◽  
Pathogen Combinations

SUMMARYAntimicrobial resistance (AR) is a growing problem worldwide and international travel, cross-border migration, and antimicrobial use may contribute to the introduction or emergence of AR. We examined AR rates and trends along the US–Mexico border by analysing microbiology data from eight US hospitals in three states bordering Mexico. Microbiology data were ascertained for the years 2000–2006 and for select healthcare and community pathogens including, three Gram-negative (Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae) and three Gram-positive (Staphylococcus aureus, Enterococcus, Streptococcus pneumoniae) pathogens and 10 antimicrobial–pathogen combinations. Resistance was highest in S. aureus (oxacillin resistance 45·7%), P. aeruginosa (quinolone resistance 22·3%), and E. coli (quinolone resistance 15·6%); six (60%) of the 10 antimicrobial–pathogen combinations studied had a significantly increasing trend in resistance over the study period. Potential contributing factors in the hospital and community such as infection control practices and antimicrobial use (prescription and non-prescription) should be explored further in the US–Mexico border region.

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