Study of the functions of plants, including photosynthesis, transport, growth and signal transduction.
A class of plant metabolites. Selected root-exuded flavonoids help induce rhizobial symbiotic signaling; this is one role among many.
A blue-light-activated receptor kinase family controlling responses including chloroplast relocation, phototropism and stomatal opening.
An Arabidopsis nitrate transporter and sensor, also called CHL1 or NPF6.3. Its nitrate-regulated auxin transport connects local nutrient conditions to lateral-root development.
A blue-light photoreceptor family with roles including plant development, circadian entrainment and photoperiodic responses.
Dependence of a biological response on the daily pattern of light and darkness, often mediated by coincidence between light and an internally timed sensitive phase.
An Arabidopsis transcriptional regulator whose timed expression and light-dependent protein regulation contribute to photoperiodic activation of FLOWERING LOCUS T.
A model in which a light-sensitive internal phase produces a response when it coincides with the external light interval. Equal total light need not produce equal responses if timing differs.
One of a pair of specialized epidermal cells controlling a stoma. Changes in solute content and turgor pressure alter pore aperture.

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