Abstract
SummaryLophodermium seditiosumis a serious needle pathogen on pine, particularly in nurseries, and there is a need to detect the pathogen during its latent phase. The internal transcribed spacer (ITS) regions of the rDNA ofL. seditiosumandL. pinastriwere amplified with universal primers and sequenced. Sequence comparisons of the two species allowed the design of species‐specific primers for the ITS regions. The primers were between 18 and 24 bp long with a minimum of 3 bp differences between the species. These primer pairs did not give any amplification of DNA from any other of the examined fungal species or from healthyPinus sylvestrisneedles. It was also possible to identify eitherL. seditiosumorL. pinastriin infected needles with and without signs of infection using these primer pairs. The method was found to be very useful for detection of latent infections ofL. seditiosuminP. sylvestrisneedles in nurseries.
Published Version
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