High light and temperature reduce photosynthetic efficiency through different mechanisms in the C4 model Setaria viridis
Year: 2021
Type: article
Abstract: C 4 plants frequently experience high light and high temperature conditions in the field, which reduce growth and yield. However, the mechanisms underlying these stress responses in C 4 plants have been under-explored, especially the coordination between mesophyll (M) and bundle sheath (BS) cells. We investigated how the C 4 model plant Setaria viridis responded to a four-hour high light or high temperature treatment at photosynthetic, transcriptomic, and ultrastructural levels. Although we observed a comparable reduction of photosynthetic efficiency in high light or high temperature treated leaves, detailed analysis of multi-level responses revealed important differences in key pathways and M/BS specificity responding to high light and high temperature. We provide a systematic analysis of high light and high temperature responses in S. viridis , reveal different acclimation strategies to these two stresses in C 4 plants, discover unique light/temperature responses in C 4 plants in comparison to C 3 plants, and identify potential targets to improve abiotic stress tolerance in C 4 crops.
Source: Communications Biology
Authors: Cheyenne M. Anderson, Erin M. Mattoon, Ningning Zhang, Eric Becker, William McHargue, Jiani Yang, Dhruv Patel, Oliver Dautermann, Scott A. M. McAdam, Tonantzin Tarin, Sunita Pathak, Tom J. Avenson, Jeffrey Berry, Maxwell Braud, Krishna K. Niyogi, Margaret Wilson, Dmitri A. Nusinow, Rodrigo Vargas, Kirk J. Czymmek, Andrea L. Eveland, Ru Zhang
Institutions: Donald Danforth Plant Science Center, Washington University in St. Louis, University of California, Berkeley, Purdue University West Lafayette, University of Delaware, Universidad Nacional Autónoma de México, University of Cambridge, Howard Hughes Medical Institute, Lawrence Berkeley National Laboratory
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $3,290
Funders: National Science Foundation, U.S. Department of Defense, Howard Hughes Medical Institute, U.S. Department of Energy, Washington University in St. Louis, Joint Genome Institute, Donald Danforth Plant Science Center, Deutsche Forschungsgemeinschaft, Defense Advanced Research Projects Agency, Advanced Research Projects Agency
OpenAlex ID: W3200894966