Trygve Krekling

TL;DR: This review focuses on bark defenses, a front line against organisms trying to reach the nutrient-rich phloem, and questions about their coevolution with bark beetles are discussed.

TL;DR: The finding suggests that one mechanistic explanation for patterns of longevity in bees is that a reproductive regulatory pathway has been remodeled to extend life, and is of considerable relevance to research on longevity regulation that builds largely on inference from solitary model species.

TL;DR: Wounding of Norway spruce by inoculation with sterile agar, or agar containing the pathogenic fungus Ceratocystis polonica, induced traumatic resin duct formation in the stem, which may represent a defense mechanism in NorwaySpruce against the pathogens fungus.

TL;DR: In this paper, the authors reported that methyl jasmonate (MJ) treatment induced swelling of existing polyphenolic parenchyma cells (PP cells) and an increase in their phenolic contents and formation of additional PP cells and traumatic resin ducts (TDs) at the cambial zone.

TL;DR: Results show that PP cells represent not only a constitutive defense system, but are also involved in local and remote inducible defenses against fungal and beetle attack.