Publications by authors named "Katherine Kammeijer"

Article Synopsis
  • Downy mildew, caused by the pathogen Peronospora effusa, is a major threat to spinach production, especially in high-density farming, prompting early harvests or complete crop abandonment.
  • The use of resistant spinach cultivars has led to the emergence of new pathogen races, with two new races (15 and 16) and eight novel strains identified between 2013 and 2017, highlighting the evolving challenges in managing the disease.
  • Research shows that while some resistance loci are effective against certain races, none of the tested USDA spinach varieties proved resistant to the most virulent strains, indicating a need for continued monitoring and breeding efforts.
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Spinach downy mildew disease, caused by the obligate pathogen Peronospora farinosa f. sp. spinaciae, is the most economically important spinach (Spinacia oleracea) disease.

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