Circularly polarized light was used as the experimental light input to compare effects of left- and right-handed illumination on plant phenotypes. In this paper, red and white CPL conditions were associated with differences in germination, hypocotyl elongation, and biomass.
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circularly polarized light
Candidate: concept label2 source documents6 linked claims
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Aliases
CPL, L-CPL, R-CPL
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Title explicitly names circularly polarized light; web research summary repeatedly refers to CPL-responsive fabrication, detection, and biological modulation.
The present study evaluated the effects of CPL on germination, hypocotyl elongation and biomass production of Arabidopsis and lettuce.
Supporting Sources
Linked Claims
Red right-handed circularly polarized light increased germination relative to red left-handed circularly polarized light in Arabidopsis and lettuce seedlings.
Quoted textsource-backed
Higher germination rates were observed when Arabidopsis and lettuce seedlings were irradiated with red right-handed CPL (R-CPL) than with red left-handed CPL (L-CPL).
Red right-handed circularly polarized light inhibited hypocotyl elongation more effectively than red left-handed circularly polarized light in Arabidopsis and lettuce seedlings.
Quoted textsource-backed
Hypocotyl elongation was effectively inhibited when Arabidopsis and lettuce seedlings were irradiated with red R-CPL than with red L-CPL.
White right-handed circularly polarized light increased adult Arabidopsis biomass relative to white left-handed circularly polarized light, as measured by fresh shoot weight.
Quoted textsource-backed
White R-CPL induced greater biomass production by adult Arabidopsis plants, as determined by their fresh shoot weight, than white L-CPL.
The observed circularly polarized light effects likely involve phyB together with other photoreceptors and the photosynthetic process.
Quoted textsource-backed
These findings suggest that these CPL effects involve phyB, along with other photoreceptors and the photosynthetic process.
The stronger inhibition of hypocotyl elongation by red right-handed circularly polarized light was not observed in a phyB-deficient Arabidopsis mutant, supporting involvement of phytochrome B.
Quoted textsource-backed
This difference was not observed when a phytochrome B (phyB) deficient mutant of Arabidopsis was irradiated, suggesting that inhibition of elongation by red R-CPL was mediated by phyB.
Left- and right-handed circularly polarized light did not differ in their ability to induce interconversion of the red light-absorbing and far-red light-absorbing forms of phyB.
Quoted textsource-backed
L-CPL and R-CPL, however, did not differ in their ability to induce the interconversion of the red light-absorbing and far-red light-absorbing forms of phyB.