New paper on actin regulation via energy status published in PNAS

The actin cytoskeleton is constantly remodelled during daily activity of a cell. However, this remodelling requires a constant input of cellular energy in the form of ATP. Our collaboration with Yi Zhang’s group at Beijing Normal University is now available online with PNAS.

This work reports that the TOR complex, a master regulatory hub that integrates cellular energy information to coordinate cell growth and metabolism, controls cellular ATP levels in plant cells. Interestingly, low ATP levels cause reduced actin dynamics in plant cells, providing insight into how plant cells handle low energy situations.

https://doi.org/10.1073/pnas.2004822117

Welcome new students!

The McFarLab welcomes seven fall-term undergraduate students to the lab this week:

Evan Berthelot joins the lab as a new CSB498 student.

Lauren Hall joins the lab as a work-study student.

Eskandar Mohammad transitions from being a summer work-study student to conducting a CSB498 project.

Leonardo Tullo continues in the group as a work-study student working with Eduardo.

Rylan Vincent transitions from being a volunteer student to conducting a CSB498 project.

Carlos Wang will continue volunteering virtually and working on his meta-analysis project.

Vicky Zhu will continue her CSB URA work as a CSB498 project student.

Welcome to the McFarLab, everyone!

New paper on cellulose synthesis regulation published in Current Opinion in Plant Biology

Plant cells must carefully regulate cell wall synthesis to maintain growth and to respond to developmental, biotic, and abiotic signals. Cellulose, the main load-bearing component of the plant cell wall is made at the cell membrane, so plants can regulate cell wall synthesis by regulating whether cellulose synthase enzymes are active and localized in the cell membrane, or whether they are held inactive within the cell. Yu’s paper in Current Opinion in Plant Biology reviews the mechanisms by which cellulose synthesis is regulated by cellulose synthase enzyme trafficking to the plasma membrane (via exocytosis) or removal from the plasma membrane (via endocytosis).

Free access to the full-text is generously provided by Current Opinion in Plant Biology until October 5.

https://doi.org/10.1016/j.pbi.2022.102273