scholarly journals Visible-Near Infrared Hyperspectral Imaging for the Identification and Discrimination of Brown Blotch Disease on Mushroom (Agaricus Bisporus) Caps

2010 ◽  
Vol 18 (5) ◽  
pp. 341-353 ◽  
Author(s):  
Edurne Gaston ◽  
Jesús M. Frías ◽  
Patrick J. Cullen ◽  
Colm P. O'Donnell ◽  
Aoife A. Gowen
Keyword(s):  
Hyperspectral Imaging ◽  
Agaricus Bisporus ◽  
Near Infrared ◽  
Brown Blotch ◽  
Brown Blotch Disease

scholarly journals Application of Siderotyping for Characterization of Pseudomonas tolaasii and “Pseudomonas reactans” Isolates Associated with Brown Blotch Disease of Cultivated Mushrooms

2000 ◽  
Vol 66 (11) ◽  
pp. 4834-4841 ◽  
Author(s):  
Patricia Munsch ◽  
Valerie A. Geoffroy ◽  
Tapani Alatossava ◽  
Jean-Marie Meyer
Keyword(s):  
Isoelectric Focusing ◽  
Agaricus Bisporus ◽  
White Line ◽  
Disease Symptoms ◽  
Line Test ◽  
Brown Blotch ◽  
Uptake Studies ◽  
Brown Blotch Disease ◽  
Reference Strains

ABSTRACT Pyoverdine isoelectric focusing analysis and pyoverdine-mediated iron uptake were used as siderotyping methods to analyze a collection of 57 northern and central European isolates of P. tolaasiiand “P. reactans.” The bacteria, isolated from cultivated Agaricus bisporus or Pleurotus ostreatus mushroom sporophores presenting brown blotch disease symptoms, were identified according to the white line test (W. C. Wong and T. F. Preece, J. Appl. Bacteriol. 47:401–407, 1979) and their pathogenicity towards A. bisporus and were grouped into siderovars according to the type of pyoverdine they produced. Seventeen P. tolaasii isolates were recognized, which divided into two siderovars, with the first one containing reference strains and isolates of various geographical origins while the second one contained Finnish isolates exclusively. The 40 “P. reactans” isolates divided into eight siderovars. Pyoverdine isoelectric focusing profiles and cross-uptake studies demonstrated an identity for some “P. reactans” isolates, with reference strains belonging to theP. fluorescens biovars II, III, or V. Thus, the easy and rapid methods of siderotyping proved to be reliable by supporting and strengthening previous taxonomical data. Moreover, two potentially novel pyoverdines characterizing one P. tolaasiisiderovar and one “P. reactans” siderovar were found.

Use of near Infrared Hyperspectral Imaging to Identify Water Matrix Co-Ordinates in Mushrooms (Agaricus Bisporus) Subjected to Mechanical Vibration

2009 ◽  
Vol 17 (6) ◽  
pp. 363-371 ◽  
Author(s):  
Aoife A. Gowen ◽  
Roumiana Tsenkova ◽  
Carlos Esquerre ◽  
Gerard Downey ◽  
Colm P. O'Donnell
Keyword(s):  
Hyperspectral Imaging ◽  
Agaricus Bisporus ◽  
Near Infrared ◽  
Mechanical Vibration ◽  
Water Matrix

scholarly journals Prediction of Polyphenol Oxidase Activity Using Visible Near-Infrared Hyperspectral Imaging on Mushroom (Agaricus bisporus) Caps

2010 ◽  
Vol 58 (10) ◽  
pp. 6226-6233 ◽  
Author(s):  
Edurne Gaston ◽  
Jesús M. Frías ◽  
Patrick J. Cullen ◽  
Colm P. O'Donnell ◽  
Aoife A. Gowen
Keyword(s):  
Hyperspectral Imaging ◽  
Polyphenol Oxidase ◽  
Oxidase Activity ◽  
Agaricus Bisporus ◽  
Near Infrared ◽  
Polyphenol Oxidase Activity
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