Tag: Hormones and Growth Regulators

Plants are constantly exposed to biotic and biotic stresses that can cause tissue damage, and, as a response, plants have evolved remarkably plastic regenerative mechanisms in response to wounding. Although some genes required for regeneration have been identified in the Arabidopsis root context, most…

Nuclear factor Y (NF-Y) proteins are heterotrimeric transcription factors made up of A, B and C subunits that exist in higher eukaryotes. Previous work has implicated NF-Ys in root growth. Recently, Zhou et al. isolated a root-specific NF-Y family transcription factor in Populus designated as PdNF-YB21.…

Jasmonate responses are regulated not only by the well-studied pair of the bioactive hormone jasmonoyl-isoleucine (JA-Ile) and the receptor COI1, but also the cyclopentenone OPDA and the JA-Ile precursor dn-OPDA can activate jasmonate signaling. However, the OPDA/dn-OPDA signaling and their physiological…

Spatio-temporal action of hormones is essential for proper growth and development of plants. In this review, Blázquez et al. discuss the evolution of the shared features of  signaling pathways of different plant hormones. Auxin, jasmonic acid, gibberellic acid, and strigolactone signaling pathways…

The canonical model of gibberellic acid (GA) signaling pathway includes the recognition of the hormone by the receptor GID1 and the further degradation of the DELLA proteins by the proteasome. In this paper, Blanco-Touriñan et al. observed in Arabidopsis that the DELLA protein REPRESSOR OF ga1-3 (RGA)…

Lateral roots arising from programmed cell division from primary roots in both monocots and dicots share some similarities and dissimilarities in developmental signaling. In this review, Waidmann et al. discuss lateral root organogenesis and elongation with respect to hormone, nutrient, and abiotic conditions.…

Auxins participate in nearly every aspect of plants' life cycle, but the information about the actual distribution of this hormone is scarce. The location of the hormone has been inferred using reporters based on auxin-transcriptional responses or auxin-dependent degradation signals. For a direct visualization,…

Strigolactones (SL) are a compounds that play important roles as phytohormones and as a rhizosphere signaling. Despite the great advances in their research that occurred recently, their biosynthetic pathway is still not well understood. Until now, the pathway leading to the precursor carlactonic…