Protecting plants

Plants that recognize a pathogen induce both a local defense response and a long-lasting, broad spectrum disease resistance throughout the plant, termed systemic acquired resistance (SAR). In the December Nature Genetics Maleck et al. use microarrays to monitor transcriptional changes during development of SAR (Nat Genet 2000, 26:403-410). Of the 10,000 expressed sequence tags (ESTs) on the microarrays, representing 25-30% of all genes from Arabidopsis thaliana, 413 show changes of 2.5-fold or m

By | December 4, 2000

Plants that recognize a pathogen induce both a local defense response and a long-lasting, broad spectrum disease resistance throughout the plant, termed systemic acquired resistance (SAR). In the December Nature Genetics Maleck et al. use microarrays to monitor transcriptional changes during development of SAR (Nat Genet 2000, 26:403-410). Of the 10,000 expressed sequence tags (ESTs) on the microarrays, representing 25-30% of all genes from Arabidopsis thaliana, 413 show changes of 2.5-fold or more in at least two samples. Clustering of these results is aided by the use of multiple inducers and multiple genotypes. One cluster of 45 ESTs contains the SAR marker PR-1. All 26 available promoters in this cluster contain at least one binding site for the plant-specific WRKY transcription factors, suggesting a possible method by which these genes are co-regulated.

Popular Now

  1. Monsanto Buys Rights to CRISPR
    The Nutshell Monsanto Buys Rights to CRISPR

    The US agribusiness secures a global, nonexclusive licensing agreement from the Broad Institute to use the gene-editing technology for agricultural applications.

  2. How Plants Evolved Different Ways to Make Caffeine
  3. Thomson Reuters Predicts Nobelists
    The Nutshell Thomson Reuters Predicts Nobelists

    According to citation statistics, researchers behind programmed cell death pathways and CRISPR/Cas9 are among those in line for Nobel Prizes this year.

  4. ESP on Trial
    Foundations ESP on Trial

    In the 1930s, parapsychologist Joseph Banks Rhine aimed to use scientific methods to confirm the existence of extrasensory perception, but faced criticisms of dubious analyses and irreproducible results.

RayBiotech