MarpolBase - Phototropin monitors actual temperature, not temperature difference, to regulate temperature-dependent chloroplast movement via cis-trans autophosphorylation mode switching in Marchantia polymorpha.

Phototropin monitors actual temperature, not temperature difference, to regulate temperature-dependent chloroplast movement via cis-trans autophosphorylation mode switching in Marchantia polymorpha.

Noguchi M, Fukushima T, Wakasugi S, Kodama Y. · 2026 · Planta research

Gene ID	Name	Evidence / Role	Function (this paper)
Mp5g03810	MpPHOT	experimental subject	MpPHOT is the single phototropin gene functionally studied here. Using MpphotKO knockout lines, the V594T mutant (MpphotV594T), and a kinase-inactive Citrine fusion (Mpphot-KI-Cit), the authors show Mpphot monitors the actual temperature (not temperature change) to regulate chloroplast movement, switching from cis- to trans-autophosphorylation as temperature drops to trigger the cold-avoidance response.