The shade‐avoidance syndrome: multiple signals and ecological consequences

Plants use photoreceptor proteins to detect the proximity of other plants and to activate adaptive responses. Of these photoreceptors, phytochrome B (phyB), which is sensitive to changes in the red (R) to far-red (FR) ratio of sunlight, is the one that has been studied in greatest detail. The molecular connections between the proximity signal (low R:FR) and a model physiological response (increased elongation growth) have now been mapped in considerable detail in Arabidopsis seedlings. We briefly review our current understanding of these connections and discuss recent progress in establishing the roles of other photoreceptors in regulating growth-related pathways in response to competition cues. We also…

• CN
  Consejo Nacional de Investigaciones Científicas y Técnicas
• NO
  Nederlandse Organisatie voor Wetenschappelijk Onderzoek
• UD
  Universidad de Buenos Aires

  Award: CONICET
• AN
  Agencia Nacional de Promoción Científica y Tecnológica

  Award: CONICET
• SD
  Secretaría de Ciencia y Técnica, Universidad de Buenos Aires