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@ARTICLE{Merchant:908474,
author = {Merchant, Andrew and Smith, Millicent R and Windt, Carel},
title = {{I}n situ pod growth rate reveals contrasting diurnal
sensitivity to water deficit in {P}haseolus vulgaris},
journal = {The journal of experimental botany},
volume = {73},
number = {11},
issn = {0022-0957},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2022-02627},
pages = {3774 - 3786},
year = {2022},
abstract = {The development of reproductive tissues determines plant
fecundity and yield. Loading of resources into the
developing reproductive tissue is thought to be under the
co-limiting effects of source and sink strength. The
dynamics of this co-limitation are unknown, largely due to
an inability to measure the flux of resources into a
developing sink. Here we use nuclear magnetic resonance
(NMR) sensors to measure sink strength by quantifying rates
of pod dry matter accumulation (pod loading) in Phaseolus
vulgaris at 13-min intervals across the diel period. Rates
of pod loading showed contrasting variation across light and
dark periods during the onset of water deficit. In addition,
rates of pod loading appeared decoupled from net
photosynthetic rates when adjusted to the plant scale.
Combined, these observations illustrate that the rate of pod
development varies under water limitation and that
continuous, non-invasive methodologies to measure sink
strength provide insight into the governing processes that
determine the development of reproductive tissues.},
cin = {IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)16},
pubmed = {35323925},
UT = {WOS:000785562400001},
doi = {10.1093/jxb/erac097},
url = {https://juser.fz-juelich.de/record/908474},
}