δ13C as a tool for iron and phosphorus deficiency prediction in crops

Many studies proposed the use of stable carbon isotope ratio (δ13C) as a predictor of abiotic stresses in plants, considering only drought and nitrogen deficiency without further investigating the impact of other nutrient deficiencies, that is, phosphorus (P) and/or iron (Fe) deficiencies. To fill t...

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Bibliographic Details
Published in:Plant direct 2023-03, Vol.7 (3), p.e487-n/a
Main Authors: Trevisan, Fabio, Tiziani, Raphael, Hall, Robert D., Cesco, Stefano, Mimmo, Tanja
Format: Article
Language:English
Subjects:
Abiotic stress
Agricultural production
barley
C4 and C3 plants
Carbon
carbon isotope ratio
cucumber
Cucumis sativus
Drought
Flowers & plants
fractionation
Hordeum vulgare
Iron
Iron deficiency
Isotopes
maize
Nutrient deficiency
Nutrients
Original Research
Phosphorus
plant physiology
Solanum lycopersicum
tomato
Zea mays
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Summary:Many studies proposed the use of stable carbon isotope ratio (δ13C) as a predictor of abiotic stresses in plants, considering only drought and nitrogen deficiency without further investigating the impact of other nutrient deficiencies, that is, phosphorus (P) and/or iron (Fe) deficiencies. To fill this knowledge gap, we assessed the δ13C of barley (Hordeum vulgare L.), cucumber (Cucumis sativus L.), maize (Zea mays L.), and tomato (Solanum lycopersicon L.) plants suffering from P, Fe, and combined P/Fe deficiencies during a two‐week period using an isotope‐ratio mass spectrometer. Simultaneously, plant physiological status was monitored with an infra‐red gas analyzer. Results show clear contrasting time‐, treatment‐, species‐, and tissue‐specific variations. Furthermore, physiological parameters showed limited correlation with δ13C shifts, highlighting that the plants' δ13C, does not depend solely on photosynthetic carbon isotope fractionation/discrimination (Δ). Hence, the use of δ13C as a predictor is highly discouraged due to its inability to detect and discern different nutrient stresses, especially when combined stresses are present.
ISSN:2475-4455
2475-4455
DOI:10.1002/pld3.487