% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Keller:873516,
author = {Keller, Beat and Matsubara, Shizue and Rascher, Uwe and
Pieruschka, Roland and Steier, Angelina and Kraska, Thorsten
and Muller, Onno},
title = {{G}enotype {S}pecific {P}hotosynthesis x {E}nvironment
{I}nteractions {C}aptured by {A}utomated {F}luorescence
{C}anopy {S}cans {O}ver {T}wo {F}luctuating {G}rowing
{S}easons},
journal = {Frontiers in plant science},
volume = {10},
issn = {1664-462X},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {FZJ-2020-00785},
pages = {1482},
year = {2019},
abstract = {Photosynthesis reacts dynamic and in different time scales
to changing conditions. Light and temperature acclimation
balance photosynthetic processes in a complex interplay with
the fluctuating environment. However, due to limitations in
the measurements techniques, these acclimations are often
described under steady-state conditions leading to
inaccurate photosynthesis estimates in the field. Here we
analyze the photosynthetic interaction with the fluctuating
environment and canopy architecture over two seasons using a
fully automated phenotyping system. We acquired over 700,000
chlorophyll fluorescence transients and spectral
measurements under semi-field conditions in four crop
species including 28 genotypes. As expected, the quantum
efficiency of the photosystem II (Fv/Fm in the dark and
Fq'/Fm' in the light) was determined by light intensity. It
was further significantly affected by spectral indices
representing canopy structure effects. In contrast, a newly
established parameter, monitoring the efficiency of electron
transport (Fr2/Fv in the dark respective Fr2'/Fq' in the
light), was highly responsive to temperature (R2 up to
0.75). This parameter decreased with temperature and enabled
the detection of cold tolerant species and genotypes. We
demonstrated the ability to capture and model the dynamic
photosynthesis response to the environment over entire
growth seasons. The improved linkage of photosynthetic
performance to canopy structure, temperature and cold
tolerance offers great potential for plant breeding and crop
growth modeling},
cin = {IBG-2},
ddc = {570},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582) / DPPN - Deutsches Pflanzen
Phänotypisierungsnetzwerk (BMBF-031A053A)},
pid = {G:(DE-HGF)POF3-582 / G:(DE-Juel1)BMBF-031A053A},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31998328},
UT = {WOS:000508950900001},
doi = {10.3389/fpls.2019.01482},
url = {https://juser.fz-juelich.de/record/873516},
}