Increases in ambient temperature progressively disassembleArabidopsisphytochrome B from individual photobodies with distinct thermostabilities

Abstract

Warm temperature is postulated to induce plant thermomorphogenesis through a signaling mechanism similar to shade, as both destabilize the active form of the photoreceptor and thermosensor phytochrome B (phyB). At the cellular level, shade antagonizes phyB signaling by triggering phyB disassembly from photobodies. Here we report temperaturedependent photobody localization of fluorescent protein-tagged phyB (phyB-FP) in the

Shoot thermosensors do not fulfil the same function in the root

“…2a,b). In the hypocotyl, the size of the NBs correlates with phyB activity (Van Buskirk et al, 2014), since warm temperatures lower the levels of active phyB (Pfr), they reduce NB size (Legris et al, 2016;Hahm et al, 2020;Murcia et al, 2021). By contrast, 28°C did not reduce the size of the NBs in root cells of the elongation zone and actually caused a small increase in tip cells (Figs 2a,S4a,b).…”

“…Increasing ambient temperature within the physiological, nonstressful, range promotes the growth of the hypocotyl (Gray et al, 1998) and of the primary root (Hanzawa et al, 2013), whilst reducing the expansion of the cotyledons (Hahm et al, 2020) of Arabidopsis thaliana seedlings.…”

Beyond energy balance in agrivoltaic food production: Emergent crop traits from wavelength-selective solar cells

“…day length) (Naganoe et al 2019). This information is used to regulate growth and development through large integrated gene networks with other environmental factors such as nutrient availability and temperature (Abbas, et al, 2014; Chen, et al, 2016; Hahm, et al, 2020). These gene networks influence many factors important for crop production, including height, nutrient content and the timing of flowering and fruit production (Susan A. Dudley, et al, 1999; Guo, et al, 1998; Park, et al, 2007).…”

“…This sensory input informs photomorphogenesis, the adjustment of growth and development to light conditions (22). Photomorphogenesis occurs through large integrated gene networks with other environmental factors such as nutrient availability and temperature (23)(24)(25). Many crop production characteristics are influenced by these gene networks, including height, nutrient content and the timing of flowering and fruit production (26)(27)(28).…”