Claim · model-written summary
Prolonged preillumination at high photon flux density lowered epoxidation rate in both plant types.
- Taxon
- Pea
Lathyrus oleraceust0 - Treatment
- Prolonged preillumination at high PFDse0
- Outcome
- epoxidation ratee0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“Prolonged preillumination at high PFDs resulted in a decrease of the epoxidation rate without a further increase of the zeaxanthin concentration in both continuous light and IML plants.”
t0“Pea Plants”
Title
P. Jahns PLANT PHYSIOLOGY 1995. doi:10.1104/pp.108.1.149
Other claims from this paper (9)
- Observation Intermittent-light plants lacked nearly all chlorophyll a/b-binding proteins.
- Intervention effect De-epoxidation rates and dependence on photon flux density were similar in intermittent-light and control plants.
- Intervention effect Intermittent-light plants had much higher steady-state zeaxanthin concentration than controls at any photon flux density.
- Mechanism Convertible violaxanthin under illumination was interpreted as dependent on chlorophyll a/b-binding proteins.
- Intervention effect Epoxidation rate differed significantly between intermittent-light and control plants.
- Intervention effect Epoxidation was about fivefold slower in intermittent-light plants.
- Association Epoxidation rate fell as preillumination photon flux density rose in both plant types.
- Intervention effect Prolonged preillumination at high photon flux density did not further increase zeaxanthin concentration.
- Mechanism The results argue against permanent xanthophyll turnover under high-light illumination.