Recent Posts

Fine control of aerenchyma and lateral root development through Aux/IAA- and ARF-dependent auxin signaling ($) (PNAS)

Auxin plays a major role in plant development and can alter the developmental program following the stress response. In this paper, Yamauchi et al., have identified the auxin signaling cascade involved in the development of aerenchyma and regulators of this auxin signaling might also be involved in lateral…

Minimal auxin sensing levels in vegetative moss stem cells revealed by a ratiometric reporter$

Auxin plays multiple developmental roles from embryogenesis to seed development. To understand the mechanism of auxin response in plants, researchers utilize the early-diverging land plant models, Physcomitrella patens and Marchantia polymorpha. In this paper, Thelander et al., have identified a…

Plant Science Research Weekly: October 18

Guest Editor : Suresh Damodaran I am a postdoctoral research associate in Dr. Lucia Strader’s lab at WUSTL. My primary area of interest is understanding the role of plant hormones in development. I completed my graduate degree in Dr. Sen Subramanian’s lab at SDSTATE.  Twitter: @SureshDamod   Design…

Coordinated regulation of pre-mRNA splicing by the SFPS-RRC1 complex to promote photomorphogenesis ($) (Plant Cell)

Phytochromes are a family of red/far-red light photoreceptors, which positively regulate photomorphogenesis upon red-light perception. Photomorphogenesis is driven by light-induced global transcriptional reprogramming, of which phytochromes are one of the most important regulators. In addition to transcriptional…

A phyB-PIF1-SPA1 kinase regulatory complex promotes photomorphogenesis in Arabidopsis (OA) (Nature Communications)

CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) is one of the best characterized E3 ubiquitin ligases with broad roles as a central repressor of light signaling in plants to cancer biology in mammals. In plants, COP1 interacts with SUPPRESSOR OF PHYA-105 1 family members (SPA1-SPA4) and forms a stable COP1/SPA…

NODULE INCEPTION recruits the lateral root developmental program for symbiotic nodule organogenesis in Medicago truncatula ($) (Curr Biol)

Lateral roots are secondary root organs arising through the dedifferentiation of inner cell layers in the primary root. Nodules arise through symbiosis with rhizobia bacteria in a certain clade of land plants and they also arise through dedifferentiation. Both lateral roots and nodules are part of the…

Ray parenchymal cells contribute to lignification of tracheids in developing xylem of Norway spruce (Plant Phys)

Lignin makes up to 27% of the dry weight of wood and is important structurally as well as serving as an effective carbon sink. Lignin is produced from monolignol precursors that are released into the apoplast and then polymerized. Previous studies have suggested that the monolignols are produced not…

Control of adventitious rooting by TIR1/AFB2-Aux/IAA-dependent auxin signaling ($) (Mol Plant)

Adventitious roots typically develop from non-root tissue like shoots either naturally in some species or upon induction by stress in most species. The key roles of auxin signaling in lateral root development are well known but the role of these regulators in adventitious roots with their high phenotypic…

Evolution of the KANADI gene family and leaf development in lycophytes and ferns ($) (Plants)

Plants constantly grow post embryonically through shoot and root apical meristems. Multiple transcriptional factors and other regulators fine-tune such growth. Leaf growth from the apical meristem is well studied in the model plant Arabidopsis where two main transcription factors, namely HD-ZIP III (Class…