Grain carbon isotopes indicate the ability of wheat plants to maintain enhanced intrinsic water-use efficiency even after short-term exposure to high temperatures and drought

Pernicová, Natálie; Hlaváčová, Marcela; Findurová, Hana; Čáslavský, Josef; Urban, Otmar; Klem, Karel; Trnka, Miroslav

doi:10.1016/j.plaphy.2023.108155

Cited by 2 publications

(1 citation statement)

References 56 publications

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“…The leaf δ 13 C reliably reflects seasonal iWUE and therefore can capture long-term trends as in our study, where the trees were not exposed to water-deficit stress. Exposure of plants to short term drought or heat stress can create a discrepancy between momentary iWUE and leaf δ 13 C as the sampled leaves contain carbohydrates from pre-stress period not affected by current A/g s balance (Camarero et al 2023;Pernicová et al 2023). The leaf δ 13 C is thus a good proxy for a long-term iWUE, especially under relatively homogenous environmental conditions.…”

Section: Relationship Between Intrinsic Water-use Efficiency and Leaf...mentioning

confidence: 99%

Linking stomatal size and density to water use efficiency and leaf carbon isotope ratio in juvenile and mature trees

Petrík,

Petek-Petrík,

Lamarque

et al. 2024

Preprint

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Water-use efficiency (WUE) is affected by multiple leaf traits, including stomatal morphology. However, the impact of stomatal morphology on WUE across different ontogenetic stages of tree species is not well-documented. Here, we investigated the relationship between stomatal morphology intrinsic water-use efficiency (iWUE=A/gs) and leaf carbon isotope ratio (δ13C). We sampled 190 individuals including juvenile and mature trees belonging to 18 temperate broadleaved tree species and 9 genera. We measured guard cell length (GCL), stomatal density (SD), specific leaf area (SLA), gas-exchange, iWUE and leaf δ13C as a proxy for long-term WUE. Leaf δ13C correlated positively with iWUE for both juvenile and mature trees. Across species, GCL showed a negative and SD a positive effect on iWUE and leaf δ13C of both juvenile and mature trees. Within species, however, only GCL was significantly associated with iWUE and leaf δ13C. Pioneer species (Populus,Prunus,Betula) showed a significantly lower leaf δ13C than climax forest species (Fagus,Quercus,Tilia), but the differentiation was not clear for iWUE. We conclude that GCL and SD can be considered as functional morphological traits impacting the iWUE and leaf δ13C of trees, highlighting their potential for rapid phenotyping approaches in ecological studies.

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Section: Relationship Between Intrinsic Water-use Efficiency and Leaf...mentioning

confidence: 99%

Linking stomatal size and density to water use efficiency and leaf carbon isotope ratio in juvenile and mature trees

Petrík,

Petek-Petrík,

Lamarque

et al. 2024

Preprint

View full text Add to dashboard Cite

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Biological Nano-Agrochemicals for Crop Production as an Emerging Way to Address Heat and Associated Stresses

Prokisch,

Ferroudj,

Labidi

et al. 2024

Nanomaterials

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Climate change is a global problem facing all aspects of the agricultural sector. Heat stress due to increasing atmospheric temperature is one of the most common climate change impacts on agriculture. Heat stress has direct effects on crop production, along with indirect effects through associated problems such as drought, salinity, and pathogenic stresses. Approaches reported to be effective to mitigate heat stress include nano-management. Nano-agrochemicals such as nanofertilizers and nanopesticides are emerging approaches that have shown promise against heat stress, particularly biogenic nano-sources. Nanomaterials are favorable for crop production due to their low toxicity and eco-friendly action. This review focuses on the different stresses associated with heat stress and their impacts on crop production. Nano-management of crops under heat stress, including the application of biogenic nanofertilizers and nanopesticides, are discussed. The potential and limitations of these biogenic nano-agrochemicals are reviewed. Potential nanotoxicity problems need more investigation at the local, national, and global levels, as well as additional studies into biogenic nano-agrochemicals and their effects on soil, plant, and microbial properties and processes.

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Grain carbon isotopes indicate the ability of wheat plants to maintain enhanced intrinsic water-use efficiency even after short-term exposure to high temperatures and drought

Cited by 2 publications

References 56 publications

Linking stomatal size and density to water use efficiency and leaf carbon isotope ratio in juvenile and mature trees

Linking stomatal size and density to water use efficiency and leaf carbon isotope ratio in juvenile and mature trees

Biological Nano-Agrochemicals for Crop Production as an Emerging Way to Address Heat and Associated Stresses

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