Testing

Fungal Pathogen Found in Manitoba Canola

Submitted by on Wed, 01/14/2015 - 10:50

Verticillium longisporum, a fungal pathogen considered a major disease of oilseed rape in Europe, has been discovered in canola in Manitoba. This soil borne fungus infects through the roots of canola plants and then grows into the xylem throughout vegetative parts of the plant. The xylem, which transports water, becomes clogged resulting in wilting and often death of the plant. The fungus produces microsclerotia that survive in plant debris in soil for many years. 

Neonicotinoids

Submitted by on Fri, 01/10/2014 - 11:54

Currently, neonicotinoids, a relatively new class of insecticide, are in wide use globally. These more water soluble compounds are taken up by plants to provide protection from insects.

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DNA Fingerprinting and Beyond

Submitted by on Thu, 04/11/2013 - 12:02

Traditionally, identification of microorganisms is based on physical characteristics such as growth appearance, microscopic appearance, and biochemical reactions. DNA sequencing, based on genetic codes contained in microorganisms, has now become the method of choice for microbial species identification.  The Agriculture and Food Laboratory (AFL) also utilizes the Next Generation Sequencing (NGS) technologies to analyze microbial communities in very complex samples.

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Extaneous Material and Filth Testing in Food

Submitted by on Mon, 07/16/2012 - 12:07

AFL microscopists, diagnosticians, and analysts use Health Canada and/or AOAC Official Methods to test for extraneous material as well as light and heavy filth in food.

Major contaminants involved in food product recalls include Metal and Glass. Further testing on metal and glass can be performed to assist in identifying the source of contamination if necessary.

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