lecture 8_pg.36-47 Flashcards
sunflecks (14 cards)
carotenoid
accessory photosynthetic pigment; carotenoids of the xanthophyll cycle play a role in dissipation of excess energy
photosystem II subunit S (PsBs)
N/A
xanthophyll cycle (i.e., zeaxanthin/antheraxathin/violaxanthin)
chemical transformations of a number of carotenoid molecules in the chlorplast that avoid serious damage by excess radiation
active (or reactive) oxygen species (ROS)
hydrogen peroxide (H2O2), superoxide radicals (O2-), and hydroxyl radicals (OH), the compounds can cause cell damage, but are also involved in signal trasnduction
light-induced chloroplast movement
N/A
signal-transduction pathway
chain of events by which a chemical messenger (e.g., a phytohormone or other signaling molecule) or physical (e.g., radiation) signal is sensed and relayed into a chain of molecular events that lead to a response; it can operate at the cellular or whole-plant level, involving long-distance transport of the signal
actin networks
N/A
sunflecks
N/A
carbamylation
reaction between CO2 and an amino group; in many species, Rubisco is activated by carbamylation, catalyzed by RuBisCO activase
2-carboxy-D-arabinitol 1-phosphate (CA1P)
N/A
RuBisCO activase
protein catalyzing the carbamylation of RuBisCO that regulates its activity; chaprone protein protecting the catalytic sites of RuBisCO at extreme temperatures and in darkness
post-illumination CO2 fixation
CO2 fixation that occurs briefly after a light pulse
induction state
N/A
triose phosphates
N/A
