Second but distinct MYB-related protein, late elongated hypocotyl (LHY), has also been identified as a potential clock gene.

TLS Online TPP Program

#Id: 9256

#Unit 6. System Physiology – Plant

The concentration at which net change in CO2 is 0 defines the CO2 compensation point and reflects the CO2 concentration at which the rate of gross photosynthetic CO2  uptake exactly equals the respiration rate.

TLS Online TPP Program

#Id: 9257

#Unit 6. System Physiology – Plant

Diurnal changes in xanthophyll content as a

function of PPFD

TLS Online TPP Program

#Id: 9258

#Unit 6. System Physiology – Plant

Photosynthetic photon flux density (PPFD)—the flux of light (usually expressed as micromoles per square meter per second [μmol m–2 s–1]) within the photosynthetically active range (400–700 nm).

TLS Online TPP Program

#Id: 9259

#Unit 6. System Physiology – Plant

Photosynthesis as a function of leaf temperature

at normal atmospheric CO2 concentrations for a C3

plant grown in its natural cool habitat and a C4 plant growing in its natural hot habitat

TLS Online TPP Program

#Id: 9260

#Unit 6. System Physiology – Plant

Photorespiration is very low in C4 plants and the quantum yield does not

show a temperature dependence.

TLS Online TPP Program

#Id: 9261

#Unit 6. System Physiology – Plant