...Elena A. Zemlyanskaya; Viacheslav Zemlianski; Aleš Pěnčík; Dior Kelley; Ykä Helariutta; Ondřej Novák; Kamil Růžička N6 -methyl adenosine (m 6 A) is a widespread internal mRNA modification impacting the expression of numerous genes. Here we characterize the auxin-related defects among...

...-like auricle also develops immediately distal to the ligule and contributes to blade angle. Here, we characterize the stages of PLB and early ligule development in terms of topography, cell area, division orientation, cell wall rigidity, and auxin response dynamics. Differential thickening of epidermal...

... organogenesis. However, the roles of plant-specific class VIII myosin proteins in plant growth and development are less understood. Here, we investigated the function of an auxin-regulated class VIII myosin, Arabidopsis thaliana MYOSIN 1 (ATM1), using genetics, transcriptomics and live cell microscopy. ATM1...

...Joana Santos Teixeira; Thea van den Berg; Kirsten ten Tusscher ABSTRACT Priming is the process through which periodic elevations in auxin signalling prepattern future sites for lateral root formation, called prebranch sites. Thus far, the extent to which elevations in auxin concentration...

... that photoreceptors inhibit darkness-induced hypocotyl adventitious root (HAR) formation by directly stabilizing Aux/IAA proteins. In this study, we further report that phytochrome-interacting factors (PIFs) plays a central role in HAR initiation by simultaneously inducing the expression of genes involved in auxin...

... of a detached leaf remains unclear. DNRR results when the cut end touches the media, as opposed to callus formation, which occurs when the cut end fails to touch the media ( Fig. 5 D) ( Iwase et al., 2017 ; Shanmukhan et al., 2020a preprint). As an increase in local auxin production is essential for both...

... initiates from the boundaries. The expression pattern of different marker genes during ovule development illustrates that this asynchronicity continues throughout whole ovule development. PIN-FORMED1 polar distribution and auxin response maxima correlate with ovule primordia asynchronous initiation. We have...

... are unknown. Here, we show the role of auxin and auxin transporters during the process of xylem bridge formation using an Orobanchaceae hemiparasitic plant, Phtheirospermum japonicum . The auxin response marker DR5 has a similar expression pattern to tracheary element differentiation genes in haustoria. Auxin...

...Priyanka Govindaraju; Carla Verna; Tongbo Zhu; Enrico Scarpella ABSTRACT Unlike in animals, in plants, vein patterning does not rely on direct cell-cell interaction and cell migration; instead, it depends on the transport of the plant hormone auxin, which in turn depends on the activity of the PIN...

... of marker genes, we found that vascular identity was specified in the 16-cell embryo. After a transient precursor state, however, there was no persistent uniform tissue identity. Auxin is intimately connected to vascular tissue development. We found that, although an AUXIN RESPONSE FACTOR5/MONOPTEROS (ARF5...

... that CsWUS directly bound to the promoter of CsCLV3 and activated its expression. Overexpression of CsFUL1 A , a FRUITFULL - like MADS-box gene, resulted in more petals and carpels. CsFUL1 A can directly bind to the CsWUS promoter to stimulate its expression. Furthermore, we found that auxin participated...

... and CUC2 regulate the transcription of the local auxin biosynthesis gene YUC4 in a coherent feed-forward loop, and this process is necessary to drive vascular regeneration. In the absence of this PLT-mediated regeneration response, leaf ground tissue cells can neither acquire the early vascular identity...

... on the mechanisms underlying the oscillatory signal and discuss how a periodic signal contributes to the conversion of founder cells into LR primordia. We also provide an overview of the phases of the root clock that may be influenced by endogenous factors, such as the plant hormone auxin, and by exogenous...

...Michael Sauer; Jürgen Kleine-Vehn ABSTRACT The phytohormone auxin influences virtually all aspects of plant growth and development. Auxin transport across membranes is facilitated by, among other proteins, members of the PIN-FORMED (PIN) and the structurally similar PIN-LIKES (PILS) families, which...

... early embryonic development, roots of the model plant Arabidopsis thaliana have a radially symmetric pattern, but a heterogeneous input of the hormone auxin from the two cotyledons forces the vascular cylinder to develop a diarch pattern with two xylem poles. Molecular analyses and mathematical...

... is frequency modulated by light and that auxin serves as a mediator for translating continuous light signals into discontinuous gene activation signals preceding the initiation of lateral roots in Arabidopsis seedlings. Based on this evidence, we propose a molecular model of an ultradian biological clock...

... process in plants, with a strong impact on the production of seeds. Ovule primordia initiation is controlled by a gene network, including components of the signaling pathways of auxin, brassinosteroids and cytokinins. By contrast, gibberellins (GAs) and DELLA proteins, the negative regulators of GA...

... activated during organ outgrowth tightly links cytoskeleton organization to cell wall remodelling. Auxin Cell wall Microtubules Morphogenesis Shoot apical meristem The control of shape during growth of multicellular organisms is a fundamental, yet poorly understood, process. In the animal...

..., development of the Arabidopsis gynoecium is tightly controlled by distribution and synthesis of the plant hormone auxin. The functions of several transcription factors (TFs) have been linked with auxin dynamics during gynoecium development; yet how their activities are coordinated is not known. Here, we show...

... found in nature. In turn, this spacing relies on complex patterns of cell polarity that involve feedback between a signaling molecule – the plant hormone auxin – and its polar, cell-to-cell transport. Here, we review recent progress in understanding phyllotaxis and plant cell polarity and highlight...