% 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{Hochberg:829475,
author = {Hochberg, Uri and Windt, Carel and Ponomarenko, Alexandre
and Zhang, Yong-Jiang and Gersony, Jessica and Rockwell,
Fulton E and Holbrook, N. Michele},
title = {{S}tomatal closure, basal leaf embolism and shedding
protect the hydraulic integrity of grape stems},
journal = {Plant physiology},
volume = {174},
number = {2},
issn = {1532-2548},
address = {Rockville, Md.},
publisher = {Soc.},
reportid = {FZJ-2017-03173},
pages = {764-775},
year = {2017},
abstract = {The time scale of stomatal closure and xylem cavitation
during plant dehydration, as well as the fate of embolised
organs, is under debate, largely due to methodological
limitations in the evaluation of embolism. While some argue
that complete stomatal closure precedes the occurrence of
embolism, others believe that the two are contemporaneous
processes that are accompanied with daily xylem refilling.
Here we utilize an optical light transmission method, to
continuously monitor xylem cavitation in leaves of
dehydrating grapevines (Vitis vinifera L.) in concert with
stomatal conductance and stem and petiole hydraulic
measurements. Magnetic resonance imaging (MRI) was used to
continuously monitor xylem cavitation and flow rates in the
stem of an intact vine during 10 days of dehydration. The
results showed that complete stomatal closure preceded the
appearance of embolism in the leaves and the stem by several
days. Basal leaves were more vulnerable to xylem embolism
than apical leaves and, once embolised, were shed, thereby
preventing further water loss and protecting the hydraulic
integrity of younger leaves and the stem. As a result,
embolism in the stem was minimal even when drought led to
complete leaf shedding. These findings suggest that
grapevines avoid xylem embolism rather than tolerate it.},
cin = {IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582)},
pid = {G:(DE-HGF)POF3-582},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000403152200026},
pubmed = {pmid:28351909},
doi = {10.1104/pp.16.01816},
url = {https://juser.fz-juelich.de/record/829475},
}