New Phytologist, Год журнала: 2023, Номер 240(5), С. 1729 - 1731

Опубликована: Окт. 10, 2023

After having spent over 2 years mostly online due to the COVID-19 outbreak, Mechanism of Plant Development Conference 2022 renewed our ability meet and engage in-person with fantastic scientists from across field plant development. The first session was opened by Scott R Poethig (University Pennsylvania, USA). described his 40 work on shoot maturation plants. He how juvenile adult phase transition (also known as vegetative change) in Arabidopsis is regulated levels small microRNAs such MIR156/MIR157 their target SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE (SPL) transcription factor. Moutasem Omary (The Hebrew University, Jerusalem, Israel) molecular basis shoot-borne roots tomato (Solanum lycopersicum) using CRISPR null mutants, single-cell transcriptomics, phylogenetic analysis. colleagues found that root initiation program controlled subclass IIIB LATERAL ORGANS BOUNDARY DOMAIN (LBD), which conserved within angiosperms (Omary et al., 2022). This research contributes understanding genetic regulation underlying different types systems. Moving underground aboveground tissue, Angela Hay (Max Planck Institute, Cologne, Germany) talked about explosive seed dispersal Cardamine hirsuta fruits. explained asymmetric lignin deposition endocarp cell walls fruit valves required for dispersal. In addition, three laccases (LACs), LAC4, LAC11, LAC17, are polar lignin. LAC4/11/17 dependent 7 (SPL7), a factor involved copper homeostasis (Pérez-Antón highlights importance particular wall components process During development, specification types, biomechanical properties, positional information all essential tissue morphogenesis (Fig. 1). Agata Burian Silesia, Katowice, Poland) her leaf primordia acquire abaxial adaxial establish dorsiventrality. used time-lapse confocal imaging genetics track both expression patterns ASYMMETRIC LEAVES KANADI well role auxin during specification. These findings suggest switches its coordinating position initiating emergence (Burian Furthermore, Daniel Alique (CBGP-Universidad Politécnica de Madrid, Spain) presented compares floral emergence. based quantitative resolution growth models. models combine properties viscoelasticity together biochemical signals auxin. integrated these recreate primordia. simulations help us approach better organ development (Peng Charlotte Kirchhelle (ENS Lyon, France) discussed turgor pressure mechanical shape coordinate growth. Using an interactomics approach, group recently identified two receptor-like proteins (RLPs) occupy unique polarity domain at edges. Their results RLPs associate allow monitor status stresses wall. Cells can then translate into cellular responses achieve robust organogenesis. Aman Husband Philadelphia, USA) robustness reproducibility complex biological processes regulated. CLASS III HOMEODOMAIN LEUCINE ZIPPER (HD-ZIPIII) factors, have many important developmental stem maintenance, flower flat production. His uses model understand maintained. addition wide range morphogenesis, other engaging talks were focused meristem regulation. Stem cells must carefully balance self-renewal differentiation followed initiation. this regard, Zachary Nimchuk North Carolina, Chapel Hill, attributed new CLAVATA (CLV) signaling pathway regulating primordium formation. involve CLV3 peptide CLV1 CLV2/CRN receptors promote auxin-dependent initiation, likely inducing YUCCA biosynthesis genes. masked higher temperatures production part plants' thermogenesis response. temperature-dependent phenomenon observed Col-0 but not Ler plants, suggesting ecotype-dependent trait local adaptation ensures reproduction (John 2023). Another striking talk apical given Shalini Yadav She ongoing reprogramming inflorescence (IM) fate. terminal 1 (tfl1) mutant background, prematurely terminates single flower, show IM becomes stage keeps pluripotency Markéta Pernisová France; CEITEC-Masaryk Brno, Czech Republic) went further type basic Helix Loop (bHLH) complexes common regulators proliferation meristems. Particularly, heterodimer formed TARGET OF MONOPTEROS 5 (TMO5) LONESOME HIGHWAY (LHW) close homologs. Persinová stated limited variations form heterodimers lead gene specificity each (Mor Progress transcriptomics has led fundamental insights particular, Ken Birnbaum (New York New York, illustrated power sequencing regeneration fine-scale resolution. technique, able unpick continuous transcriptional one fate another regeneration, thereby addressing crucial questions timing dynamics changes. Bruno Guillotin use examine evolutionary history traits domesticated grass species (maize, sorghum, Setaria). shows some diverged more rapidly than others. Moreover, he whole genome duplication maize dosage compensation sub-functionalization leading partitioning among types. suggests synergy between spatial sub- neo-functionalization may contribute changes identity. It difficult describe any without phytohormones Alexis Maizel Heidelberg, recent post-embryonic lateral rapamycin (TOR) functions gatekeeper integrates metabolic glycolytic pathways affect translation auxin-responsive factors (ARFs) ARF7 ARF19. exciting auxin-regulated SAUR Jason W. Reed distinct domains SAUR63 protein mediate bind plasma membrane growth, thus giving SAURs key Plants possess impressive regenerative capacity. Idan Efroni aimed cut regenerate 72 h. To process, performed elegant experiments showing that, after been cut, near zone become symplastically isolated rest order redefine identity meristem. They find symplastic isolation mediated SEGER family factors. Interestingly, contexts beyond regeneration. root-specific whole, Keiko Sugimoto (RIKEN Center, Yokohama, Japan) groups' starts intriguing observation early wound mimic heat responses. Wounding activate response pathway, transient shock capacity enhance (Lambolez convergence seemingly environmental poses interesting evolution. conference also covered besides classical Bénédicte Charrier (CNRS-Sorbonne Université, Roscoff, introduced brown algae (Saccharina japonica) describes detail principles formation blade egg cell. Remarkably, she pointed out presence body axes, anisotropy apical-basal axis already established zygote. initial pattern later amplified isotropically mature organ. thrilling highlighted above, everyone took discussions poster sessions. We apologize whose we unable fit report thank organizers Kimberly Gallagher USA), Michael Scanlon (Cornell Ithaca, Teva Vernoux France). meeting sponsored Federation American Societies Experimental Biology (FASEB), Phytologist Foundation, Company Biologists, Journal Botany Science Signaling. DA, AG-F, AK, ZN SY contributed equally work.

Язык: Английский