First contact with greater gravity: Moss plants adapted via enhanced photosynthesis mediated by AP2/ERF transcription factors
Joint press release (in Japanese) by Kyoto Institute of Technology, Hokkaido University, University of Toyama, Kyushu University, Tokyo University of Agriculture and Kyoto University
Abstract
The emergence of land plants required adaptations to altered water availability and increased effective gravity. Bryophytes underwent major changes in physiology, anatomy, and growth during their emergence onto land. However, the link between gravity, photosynthesis, and genetic control remains unclear. Here, we show that leaf carbon dioxide diffusion enhanced photosynthesis in the model moss Physcomitrium patens under increased gravity (6 and 10 times Earth’s gravity), driven by increases in plant (gametophore) number and chloroplast size. RNA sequencing analysis showed that 10 gravity up-regulated several species-specific APETALA2/ethylene-responsive factor (AP2/ERF) transcription factors. Overexpression of one such AP2/ERF, ISSUNBOSHI1 (IBSH1; gene ID = Pp3c1_32440), in P. patens phenocopied plants grown at 10 gravity, ……
Read the original article on Science Advances
Article inforamation
Yuko T. Hanba et al. , First contact with greater gravity: Moss plants adapted via enhanced photosynthesis mediated by AP2/ERF transcription factors., Sci. Adv. 11, eado8664(2025).
DOI:10.1126/sciadv.ado8664
