Plant Physiology and Biochemistry

Journal: Plant Physiology and Biochemistry

Abbreviation

Plant physiol. biochem.

Publisher

Elsevier

ISSN

0981-9428
1873-2690

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Publications 1 - 8 of 8

Comparison of cadmium pathways in a high Cd accumulating cultivar versus a low Cd accumulating cultivar of Theobroma cacao L.
Blommaert, Hester; Aucour, Anne-Marie; Wiggenhauser, Matthias; et al. (2025)
Plant Physiology and Biochemistry
Understanding cadmium (Cd) pathways in cacao trees is critical for developing Cd mitigation strategies. This study investigates whether Cd uptake and translocation mechanisms differ between a low and a high Cd-accumulating cacao cultivar. We sampled three replicate trees of each cultivar, and a grafted cultivar that shared the same scion as the low Cd accumulator but had a different rootstock. All cultivars grew in the same field with similar bioavailable soil Cd. We utilized Cd stable isotope analyses to trace Cd pathways within the trees, complemented by micro-scale imaging of Cd distribution in leaves and branches, and nutrient and Cd quantification across tree organs. The high Cd accumulator exhibited 2.9-fold higher Cd uptake than the low Cd accumulator, while the grafted cultivar showed 1.7-fold higher uptake. These differences matched Mn uptake. The δ114/110Cd values of organs increased in the order: roots ≤ nibs, young leaves ≤ branches ≤ pod husks < mature leaves for the high and grafted cultivar, and nibs ≤ roots ≤ branches ≤ pod husks < mature leaves for the low cultivar. The enrichment in heavy isotopes correlated with a progressive retention of Cd compared to Mn along the xylem pathway from roots to branches to leaves. The differences in Cd isotope compositions between cultivars indicate that there are differences in translocation processes, yet they did not affect the relative Cd internal distribution. Cd mass balances and internal translocation factors (ITF) corroborated that differences in nib Cd concentrations among cultivars were primarily due to uptake rather than translocation.
Low temperature stress in maize (Zea mays L.) induces genes involved in photosynthesis and signal transduction as studied by suppression subtractive hybridization
Nguyen, Ha Thuy; Leipner, Jörg; Stamp, Peter; et al. (2009)
Plant Physiology and Biochemistry
A small-scale method for the preparation of plant N-linked glycans from soluble proteins for analysis by MALDI-TOF mass spectrometry
Karg, Saskia R.; Frey, Alexander D.; Ferrara, Claudia; et al. (2009)
Plant Physiology and Biochemistry
Silencing of flavanone-3-hydroxylase in apple (Malus x domestica Borkh.) leads to accumulation of flavanones, but not to reduced fire blight susceptibility
Flachowsky, Henryk; Halbwirth, Heidi; Treutter, Dieter; et al. (2012)
Plant Physiology and Biochemistry
Compound-specific carbon isotope patterns in needles of conifer tree species from the Swiss National Park under recent climate change
Churakova (Sidorova), Olga V.; Lehmann, Marco M.; Siegwolf, Rolf T.W.; et al. (2019)
Plant Physiology and Biochemistry
Comprehensive survey of redox sensitive starch metabolising enzymes in Arabidopsis thaliana
Glaring, Mikkel A.; Skryhan, Katsiaryna; Kötting, Oliver; et al. (2012)
Plant Physiology and Biochemistry
Phosphate and methionine affect cadmium uptake in valerian (Valeriana officinalis L.)
Mousavi, Seyyedeh A.; Dalir, Neda; Rahnemaie, Rasoul; et al. (2021)
Plant Physiology and Biochemistry
This study investigated the effects of exogenous methionine (Met) and different phosphate (PO4) concentrations on Cd uptake and translocation in Valeriana officinalis L. Seedlings were grown in nutrient solutions with three different concentrations of phosphate (900, 1200, and 1500 μM) for two weeks, then exposed for 4 days to 10 μM Cd, either in presence or absence of 400 μM methionine. The Met treatment decreased root Cd accumulation by up to 40%, while it enhanced Cd uptake into the shoots by 50%. In absence of Met, shoot Cd uptake was not affected by the level of phosphate application, although root Cd contents increased. The latter effect was entirely due to increased apoplastic Cd binding. In presence of Met, the Cd accumulation of both plant parts showed trends to increase with increasing phosphate level. In contrast to the treatments without Met, however, the phosphate effect on root Cd was due to increased symplastic root Cd allocation. The results suggest that the effects of Met on Cd uptake were due to the formation of mobile Cd-Met complexes, reducing phosphate-promoted Cd-retention in the apoplast and enhancing Cd transfer into the root symplast. Irrespective of the treatment, shoot Cd accumulation showed a close linear relationship to shoot mass, suggesting that convective transport with the transpirational water stream was the rate-governing uptake process. The results indicate that methionine supplementation could reduce Cd accumulation in valerian roots, which are the parts of this plant harvested for medicinal purposes, in Cd-contaminated soil, while phosphate would enhance it. © 2020 Elsevier Masson SAS
Response of the photosynthetic apparatus of cotton (Gossypium hirsutum) to the onset of drought stress under field conditions studied by gas-exchange analysis and chlorophyll fluorescence imaging
Massacci, A.; Nabiev, S.M.; Pietrosanti, L.; et al. (2008)
Plant Physiology and Biochemistry

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