TY - JOUR
T1 - Circular spectropolarimetric sensing of higher plant and algal chloroplast structural variations
AU - Patty, C. H. Lucas
AU - Ariese, Freek
AU - Buma, Wybren Jan
AU - ten Kate, Inge Loes
AU - van Spanning, Rob J. M.
AU - Snik, Frans
PY - 2019/5
Y1 - 2019/5
N2 - Photosynthetic eukaryotes show a remarkable variability in photosynthesis, including large differences in light-harvesting proteins and pigment composition. In vivo circular spectropolarimetry enables us to probe the molecular architecture of photosynthesis in a non-invasive and non-destructive way and, as such, can offer a wealth of physiological and structural information. In the present study, we have measured the circular polarizance of several multicellular green, red, and brown algae and higher plants, which show large variations in circular spectropolarimetric signals with differences in both spectral shape and magnitude. Many of the algae display spectral characteristics not previously reported, indicating a larger variation in molecular organization than previously assumed. As the strengths of these signals vary by three orders of magnitude, these results also have important implications in terms of detectability for the use of circular polarization as a signature of life.
AB - Photosynthetic eukaryotes show a remarkable variability in photosynthesis, including large differences in light-harvesting proteins and pigment composition. In vivo circular spectropolarimetry enables us to probe the molecular architecture of photosynthesis in a non-invasive and non-destructive way and, as such, can offer a wealth of physiological and structural information. In the present study, we have measured the circular polarizance of several multicellular green, red, and brown algae and higher plants, which show large variations in circular spectropolarimetric signals with differences in both spectral shape and magnitude. Many of the algae display spectral characteristics not previously reported, indicating a larger variation in molecular organization than previously assumed. As the strengths of these signals vary by three orders of magnitude, these results also have important implications in terms of detectability for the use of circular polarization as a signature of life.
KW - Algae
KW - Chlorophyll
KW - Chloroplast
KW - Circular polarization
KW - Photosynthesis
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U2 - 10.1007/s11120-018-0572-2
DO - 10.1007/s11120-018-0572-2
M3 - Article
VL - 140
SP - 129
EP - 139
JO - Photosynthesis Research
JF - Photosynthesis Research
SN - 0166-8595
IS - 2
ER -