Juan Alonso-Serra -Hydraulic patterns in plant development; Ana Patricia Ramos-Forming an Eye: from cell behaviour to tissue shape changes.

Add to your list(s) Download to your calendar using vCal

• Juan Alonso-Serra,University of Helsinki; Ana Patricia Ramos, Instituto Gulbenkian de Ciência (IGC), Oeiras, Portugal
• Monday 17 February 2025, 14:30-15:30
• Online.

If you have a question about this talk, please contact Jia CHEN.

Juan Alonso-Serra’s talk title: Hydraulic patterns in plant development

Abstract: Plant cells undergo dynamic changes in water status during normal development, generating hydraulic patterns and water fluxes at the tissue level. These processes are particularly evident, for example, when shoot meristems produce a new flower. While water fluxes are often regarded as passive by-products of development, growing evidence suggests that they not only result from growth processes but also play an active role in shaping them. In my research, I integrate 4D confocal microscopy, water tracing techniques, hydraulic modeling, and genetics to investigate how water fluxes serve as both a consequence and a driver of growth patterning. By uncovering the feedback loops between water movement and morphogenesis, we can uncover how hydraulic signals actively influence plant development and contribute to the regulation of growth and form.

Ana Patricia Ramos’s talk title: Forming an Eye: from cell behaviour to tissue shape changes.

Abstract: Building an organ is a multistep process in which correct morphogenesis arises from feedback loops between genetic regulation and mechanical forces. A key morphogenetic event is the emergence of tissue curvature, which is essential for various developmental processes, such as gastrulation, and shapes multiple organs, including the heart and neural tube.

Curvature can develop alongside other cellular and tissue rearrangements. In many of these complex contexts, the biomechanical interactions driving curvature remain unclear, as the contributions of individual rearrangements and their interplay are difficult to disentangle.

To address this, we investigated the morphogenesis of the vertebrate optic cup, a highly curved structure that forms from a flat bilayered optic vesicle. Using zebrafish as a model system, where cell and tissue dynamics can be studied in native 4D conditions, we combined in vivo experiments, 4D segmentation and analysis, and theoretical modeling. This interdisciplinary approach allowed us to identify key players driving the emergence of optic cup curvature.

This talk is part of the Morphogenesis Seminar Series series.

This talk is included in these lists:

• Graduate-Seminars
• Morphogenesis Seminar Series
• Online

Note that ex-directory lists are not shown.