Jasmonate Synthesis and Action in Higher Plants

Abstract

Jasmonic acid and related fatty acid‐derived compounds regulate a wide range of developmental and defence‐related processes in higher plants. Accumulating evidence indicates that the cellular mechanism of jasmonate signalling is remarkably similar to that involved in the perception of the plant hormone auxin.

Induced Immunity Against Belowground Insect Herbivores- Activation of Defenses in the Absence of a Jasmonate Burst

“…Roots, since their appearance in the first land plants 400 million years ago (Raven and Edwards 2001), are highly specialized structures that differ both morphologically as well as physiologically from their aboveground counterparts: Instead of chloroplasts for example, which play a central role not only in photosynthesis but also in defensive processes (Howe and Browse 2001), roots possess leucoplasts (Itoh and Fujiwara 2010), which are not pigmented and can serve as storage organelles. Also, instead of extracuticular barriers like waxes and trichomes (Valkama et al 2005), roots interact with their environment directly via the apoplastic space that is separated from the vascular system by casparian strips (Waisel et al 2002).…”