Can nutrient fertilization mitigate the effects of ozone exposure on an ozone-sensitive poplar clone?

Podda, Alessandra; Pisuttu, Claudia; Hoshika, Yasutomo; Pellegrini, Elisa; Carrari, Elisa; Lorenzini, Giacomo; Nali, Cristina; Cotrozzi, Lorenzo; Zhang, Lu; Baraldi, Rita; Neri, Luisa; Paoletti, Elena

doi:10.1016/j.scitotenv.2018.11.459

Cited by 40 publications

(19 citation statements)

References 69 publications

(72 reference statements)

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“…In this study, we found that O 3 induced a significant increase in MDA content and O 2 • − accumulation in leaves of tree species, indicating that peroxidation and denaturation of membrane lipids occurred under O 3 stress and became more significant as growing period was progressing. Similar results were found when high O 3 increased oxidative stress and accumulation of ROS and MDA in maize leaves (Singh et al, 2014), wheat cultivars (Wang et al, 2014;Fatima et al, 2018) and poplar clones (Podda et al, 2019;Shang et al, 2020).…”

Section: Oxidative and Antioxidative Responses To Increased Temperatu...supporting

confidence: 80%

Experimental warming alleviates the adverse effects from tropospheric ozone on two urban tree species

Wang

Zhang

et al. 2021

Environmental Pollution

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Section: Oxidative and Antioxidative Responses To Increased Temperatu...supporting

confidence: 80%

Experimental warming alleviates the adverse effects from tropospheric ozone on two urban tree species

Wang

Zhang

et al. 2021

Environmental Pollution

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“…For the same experiment it was reported that both N an P addition decrease reactive oxygen species in leaves at ambient and 1.5 x ambient O3, but not at 2.0 x ambient O3 (Podda et al 2019).…”

Section: Introductionmentioning

confidence: 64%

Elevated ozone prevents acquisition of available nitrogen due to smaller root surface area in poplar

et al. 2020

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Poplars are ecologically and economically important tree genus, sensitive to ozone (O3). This study aimed to investigate modifying effects of elevated O3 on poplar root response to nutrient addition. Methods 2In pot experiment, young trees of an O3-sensitive Oxford poplar clone (Populus maximoviczii Henry × berolinensis Dippel) growing in soil with three levels of P (0, 40 and 80 kg ha -1 ) and two levels of N (0 and kg ha -1 ) were exposed to three levels of O3 (ambient -AA, 1.5 x AA, 2.0 x AA) at a free air exposure facility. After one growing season, root biomass, fine root (<2 mm) nutrient concentrations and ratios, and fine root morphology were assessed. ResultsNitrogen addition resulted in an up to +100.5% increase in coarse and fine root biomass under AA, and only up to +46.3% increase under 2.0 x AA. Elevated O3 and P addition had a positive effect, while N had a negative effect on P concentrations in fine roots. Nitrogen limitation for root growth expressed as a N:P ratio was more pronounced at elevated O3.Nitrogen addition increased root surface area per soil volume by +78.3% at AA and only by +9.9% at 2.0 x AA. ConclusionsSmaller root surface area per soil volume at elevated O3 prevented acquisition of available N, rendering N fertilization of young poplar plantations in such conditions economically and environmentally questionable.

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“…The highest AB levels were found in plants exposed to So light at I +, which, unexpectedly, showed high AB also in presence of F − and S +. These outcomes highlight that different combinations of stressors can differently, and non‐additively, affect plant growth (Landi et al, ; Pandey et al, ; Podda et al, ; Zhang et al, ). The different AB production of lettuce under variable environmental conditions did not seem due to divergent resource allocations between shoots and roots: among the factors, salinity was the most influential on AB:BB.…”

Section: Discussionmentioning

confidence: 99%

Hyperspectral assessment of plant responses to multi‐stress environments: Prospects for managing protected agrosystems

Cotrozzi

Couture

2019

Plants People Planet

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Advancements in our ability to rapidly detect plant responses to stress are necessary to improve crop management practices and meet the global challenge of food security. Using optical approaches to detect plant stress before symptoms become apparent has great potential, but these approaches lack testing in multiple-stress environments and fail to fully exploit the data collected. Using hyperspectral data from lettuce, we show that optical measurements can provide growers with important stress-related information to inform crop management practices. We suggest that integrating this technology into protected agrosystems, such as greenhouses, could greatly improve crop quality and yield. Summary• Tools to detect and predict stress pre-visually are essential to optimally manage agrosystems. Here, we investigated the capability of reflectance spectroscopy to characterize responses of asymptomatic crop leaves under multi-stress conditions.• Full range (350-2,500 nm) reflectance measurements and traditional plant stress responses were collected on lettuce leaves under the combination of different supplemental light types and intensities, fertilization and salinity. Partial leastsquares discriminate analysis and regression modeling and spectral indices were employed to characterize plant responses to multiple stress conditions, both alone and in combination.• Spectral profiles (400-800 nm + 1,900-2,200 nm) of individuals grown under variable environments were statistically different (p < .05) for multiple combinations.Partial least-squares discriminate analysis accurately classified the different single stressors well (accuracy: 0.76-0.91), but generated moderate accuracies (0.63-0.65) for two-stress combinations, and low accuracy (0.33) for higher order stress combinations. Osmotic potential, and chlorophyll and phenol concentrations were well predicted by spectral data (validation R 2 : 0.70-0.84). Higher lettuce yield and quality was found under sodium light at high intensity (850 µmol m −2 s −1 photosynthetic active radiation), with high fertilization (150 ppm N) and no salinity. | 245

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Can nutrient fertilization mitigate the effects of ozone exposure on an ozone-sensitive poplar clone?

Cited by 40 publications

References 69 publications

Experimental warming alleviates the adverse effects from tropospheric ozone on two urban tree species

Experimental warming alleviates the adverse effects from tropospheric ozone on two urban tree species

Elevated ozone prevents acquisition of available nitrogen due to smaller root surface area in poplar

Hyperspectral assessment of plant responses to multi‐stress environments: Prospects for managing protected agrosystems

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