TY  - CONF
AU  - Vidović, Marija
AU  - Tosti, T.
AU  - Nikolić, N.
AU  - Pantelić, Ana
AU  - Veljović Jovanović, S.
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1868
UR  - http://www.sfses.com/docs/14th-SFSES-Abstracts.pdf
AB  - Resurrection plant Ramonda serbica Panc. survives long desiccation periods
and fully recovers metabolic functions already one day upon watering. This study
aimed to investigate the role of soluble sugars and polyphenols, as well as cell wallassociated
polysaccharides and lignin in desiccation tolerance in R. serbica, an
endemic species from the Balkan peninsula. We combined differential
transcriptomics and proteomics, the analysis of soluble polyphenolics and sugars, as
well as FTIR analysis of the cell wall polymers. Pectin, cellulose, hemicellulose, and
xyloglucans were identified as polysaccharide components of the R. serbica cell
wall and they decreased upon desiccation. Desiccation provoked cell wall
remodelling related to the possible production of H2O2/HO via germin-like proteins
and pectin demethylesterification. In addition, desiccation induced carbon recycling
from starch to soluble sugar osmolytes, whose content significantly increased in
desiccated leaves. These data support the importance of specific sugars and the
plasticity of the cell wall as one of the major contributors to desiccation tolerance of
resurrection species, contributing to further crop drought tolerance improvement.
PB  - Belgrade : Institute for Nature Conservation of Serbia
PB  - Niš : Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš
C3  - 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions
T1  - The role of polyphenols, sugars, and cell-wall associated polymers in desiccation tolerance of Ramonda serbica
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1868
ER  - 

@conference{
author = "Vidović, Marija and Tosti, T. and Nikolić, N. and Pantelić, Ana and Veljović Jovanović, S.",
year = "2022",
abstract = "Resurrection plant Ramonda serbica Panc. survives long desiccation periods
and fully recovers metabolic functions already one day upon watering. This study
aimed to investigate the role of soluble sugars and polyphenols, as well as cell wallassociated
polysaccharides and lignin in desiccation tolerance in R. serbica, an
endemic species from the Balkan peninsula. We combined differential
transcriptomics and proteomics, the analysis of soluble polyphenolics and sugars, as
well as FTIR analysis of the cell wall polymers. Pectin, cellulose, hemicellulose, and
xyloglucans were identified as polysaccharide components of the R. serbica cell
wall and they decreased upon desiccation. Desiccation provoked cell wall
remodelling related to the possible production of H2O2/HO via germin-like proteins
and pectin demethylesterification. In addition, desiccation induced carbon recycling
from starch to soluble sugar osmolytes, whose content significantly increased in
desiccated leaves. These data support the importance of specific sugars and the
plasticity of the cell wall as one of the major contributors to desiccation tolerance of
resurrection species, contributing to further crop drought tolerance improvement.",
publisher = "Belgrade : Institute for Nature Conservation of Serbia, Niš : Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš",
journal = "14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions",
title = "The role of polyphenols, sugars, and cell-wall associated polymers in desiccation tolerance of Ramonda serbica",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1868"
}

Vidović, M., Tosti, T., Nikolić, N., Pantelić, A.,& Veljović Jovanović, S.. (2022). The role of polyphenols, sugars, and cell-wall associated polymers in desiccation tolerance of Ramonda serbica. in 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions
Belgrade : Institute for Nature Conservation of Serbia., 73.
https://hdl.handle.net/21.15107/rcub_imagine_1868

Vidović M, Tosti T, Nikolić N, Pantelić A, Veljović Jovanović S. The role of polyphenols, sugars, and cell-wall associated polymers in desiccation tolerance of Ramonda serbica. in 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions. 2022;:73.
https://hdl.handle.net/21.15107/rcub_imagine_1868 .

Vidović, Marija, Tosti, T., Nikolić, N., Pantelić, Ana, Veljović Jovanović, S., "The role of polyphenols, sugars, and cell-wall associated polymers in desiccation tolerance of Ramonda serbica" in 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions (2022):73,
https://hdl.handle.net/21.15107/rcub_imagine_1868 .

TY  - CONF
AU  - Vidović, Marija
AU  - Morina, F.
AU  - Milić, S.
AU  - Winkler, J.B.
AU  - Albert, A.
AU  - Zechmann, B.
AU  - Veljović Jovanović, S.
PY  - 2014
UR  - https://www.ucc.ie/en/uv4growth/
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1880
AB  - This study is based on the results obtained from the experiments conducted within two Short Term
Science Missions (STSMs) in the Research Unit Environmental Simulation, Helmholtz Zentrum München
during 2011 and 2012. Our aim was to investigate the effects of realistic UV-B doses on photosynthesis
and secondary metabolism in variegated leaves. Variegated Plectranthus coleoides plants were exposed
to UV-B radiation (0.90 W m-2) under two photosynthetic active radiation (PAR) intensities (LL: 395 and
HL: 1350 μmol m-2 s-1) for nine days in the sun simulators at the Helmholtz Zentrum München. In the
green leaf portions, UV-B radiation stimulated photosynthetic rates in P. coleoides at both PAR
intensities and doubled the size of plastoglobuli whereas the contents of photosynthetic pigments were
slightly increased at HL. The concentrations of phenylpropanoids, catechins and hydroxybenzoic acids,
were preferentially accumulated in green leaf portions, independently on radiation regimes. A hallmark
of UV-B induced changes in plant metabolism, the induction of flavonoid pathway, was evidenced in P.
coleoides by accumulation of apigenin and cyanidin glycosides in the whole leaf at both background
PARs. UV-B induced accumulation of apigenin and cyanidin glycosides was more pronounced in the
white leaf portions, compared to green one. Moreover, we observed differential response of H2O2
scavenging system to high PAR and UV-B in relation to tissue type. Alteration of linear electron flow,
provoked by acclimation to UV-B at HL was associated with decreased ascorbate redox state and APX
activity. In summary, UV-B radiation stimulated CO2 assimilation and increased fixed carbon flow into
photosynthetic pigments, phenylpropanoids and flavonoids/anthocyanins which might be important for
photoprotection of photosynthetic machinery under high light intensity.
PB  - Ljubljana : Department of Biology, Biotechnical Faculty
C3  - COST-Action FA0906 - UV4Growth
T1  - UV-B radiation alters interactions between photosynthesis and secondary metabolism in variegated Plectranthus coleoides
SP  - 59
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1880
ER  - 

@conference{
author = "Vidović, Marija and Morina, F. and Milić, S. and Winkler, J.B. and Albert, A. and Zechmann, B. and Veljović Jovanović, S.",
year = "2014",
abstract = "This study is based on the results obtained from the experiments conducted within two Short Term
Science Missions (STSMs) in the Research Unit Environmental Simulation, Helmholtz Zentrum München
during 2011 and 2012. Our aim was to investigate the effects of realistic UV-B doses on photosynthesis
and secondary metabolism in variegated leaves. Variegated Plectranthus coleoides plants were exposed
to UV-B radiation (0.90 W m-2) under two photosynthetic active radiation (PAR) intensities (LL: 395 and
HL: 1350 μmol m-2 s-1) for nine days in the sun simulators at the Helmholtz Zentrum München. In the
green leaf portions, UV-B radiation stimulated photosynthetic rates in P. coleoides at both PAR
intensities and doubled the size of plastoglobuli whereas the contents of photosynthetic pigments were
slightly increased at HL. The concentrations of phenylpropanoids, catechins and hydroxybenzoic acids,
were preferentially accumulated in green leaf portions, independently on radiation regimes. A hallmark
of UV-B induced changes in plant metabolism, the induction of flavonoid pathway, was evidenced in P.
coleoides by accumulation of apigenin and cyanidin glycosides in the whole leaf at both background
PARs. UV-B induced accumulation of apigenin and cyanidin glycosides was more pronounced in the
white leaf portions, compared to green one. Moreover, we observed differential response of H2O2
scavenging system to high PAR and UV-B in relation to tissue type. Alteration of linear electron flow,
provoked by acclimation to UV-B at HL was associated with decreased ascorbate redox state and APX
activity. In summary, UV-B radiation stimulated CO2 assimilation and increased fixed carbon flow into
photosynthetic pigments, phenylpropanoids and flavonoids/anthocyanins which might be important for
photoprotection of photosynthetic machinery under high light intensity.",
publisher = "Ljubljana : Department of Biology, Biotechnical Faculty",
journal = "COST-Action FA0906 - UV4Growth",
title = "UV-B radiation alters interactions between photosynthesis and secondary metabolism in variegated Plectranthus coleoides",
pages = "59",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1880"
}

Vidović, M., Morina, F., Milić, S., Winkler, J.B., Albert, A., Zechmann, B.,& Veljović Jovanović, S.. (2014). UV-B radiation alters interactions between photosynthesis and secondary metabolism in variegated Plectranthus coleoides. in COST-Action FA0906 - UV4Growth
Ljubljana : Department of Biology, Biotechnical Faculty., 59.
https://hdl.handle.net/21.15107/rcub_imagine_1880

Vidović M, Morina F, Milić S, Winkler J, Albert A, Zechmann B, Veljović Jovanović S. UV-B radiation alters interactions between photosynthesis and secondary metabolism in variegated Plectranthus coleoides. in COST-Action FA0906 - UV4Growth. 2014;:59.
https://hdl.handle.net/21.15107/rcub_imagine_1880 .

Vidović, Marija, Morina, F., Milić, S., Winkler, J.B., Albert, A., Zechmann, B., Veljović Jovanović, S., "UV-B radiation alters interactions between photosynthesis and secondary metabolism in variegated Plectranthus coleoides" in COST-Action FA0906 - UV4Growth (2014):59,
https://hdl.handle.net/21.15107/rcub_imagine_1880 .