Auxin transport regulated by directional transporters such as PIN (PIN-FORMED) proteins ensures maintenance of proper auxin levels for growth and development. Plants modulate auxin flow by regulating the localization of PIN through exocytosis and endocytosis allowing recycling of PIN protein within a cell. In search of modulators of PIN internalization during such regulation, Oochi et […]
Trichomes (plant hairs), arise from epidermal cells of plants. The molecular mechanism involved in the development of trichomes of plants has been well studied in Arabidopsis thaliana. In this paper, Chopra et al. have identified key regulators of leaf trichome development in Arabis alpina, a species that diverged from A. thaliana about 26-40 million years […]
In this preprint Kim et al., have provided an optimized method for determining protein-protein interaction in plants using TurboID-mediated labelling. TurboID is an engineered promiscuous biotin ligase that marks proteins it comes in contact with. Identification of interacting partners of a protein through this approach will aid in deciphering the molecular signaling network. In this […]
During root growth, cellular activities need to be coordinated across tissues. Mambro et al. have identified molecular mechanisms involved in root apical meristem maintenance by auxin homeostasis regulation in lateral root cap (LRC) cells. The cytokinin response regulator ARR1 regulates expression of the auxin transporter PIN5 and an auxin conjugating amidoacyl transferase, GH3-17, in LRC. […]
In this new review, Riverola et al. highlight the significance of the phytohormone brassinosteroid in plant development and responses to stress. The authors discuss BRL1, LRR-RLK receptor mediated signaling mechanism that is crucial for root development and stress response. This signaling mechanism varies at the tissue specific level. Regions where the receptors are enriched are […]
Autoregulation of nodule development (AON) is a process by which leguminous plants control nodule development. SUNN, a LRR-RLK, and a systemic CLE peptide play a negative role in nodulation through systemic signaling. In this paper Laffont et al. showed the another systemic regulation of nodulation in Medicago by CRA2 (COMPACT ROOR ARCHITECTURE 2), a leucine-rich […]
In the model plant Arabidopsis, stomatal development occurs in a scattered pattern with that avoids direct contact between them. In rice and other monocots, the stomata are distributed in a uniformly oriented manner. Such unique patterning and morphology of stomata intrigued Wu et al. to examine if the transcriptional factors (TFs) identified in Arabidopsis share […]
Abiotic stress influences plant development, with the phytohormone ABA playing an important role. Ramachandran et al. have demonstrated ABA mediated activation of microRNA 166, which regulates expression levels of the HD-ZIP III transcriptional factor family. Exogenously supplied ABA alters xylem patterning due to a change in cell fate, as demonstrated using xylem cell-type specific markers. […]
With its diverse chemical structures, the phytohormone cytokinin is significant from embryogenesis to the maturation of plants. In this review, Wybouw and De Rybel highlight in detail cytokinin signaling in multiple plant developmental process including shoot, flower, stomata, root and vascular development. The Type B-ARRs (ARABIDOPSIS RESPONSE REGULATORS) induce multiple cytokinin responsive genes like WUSHEL […]