Characterisation of combined abiotic and biotic stresses effects on lettuce plants via a multi-analysis approach DOI Creative Commons
Roberta Bulgari, Jouhaina Riahi, Riccardo Cecire

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: May 13, 2025

Crop losses due to abiotic and biotic (in particular fungal diseases) stresses significantly impact yields quality in agricultural productions. Identifying strategies prevent or mitigate those is crucial for developing resilient crop systems. To this aim, a deep complete characterisation of the main effects induced lettuce, representative species grown soilless system within greenhouse, was conducted by applying water, nutritional, individually combination. Specifically, water stress on plants 40% irrigation deficit with respect reference watering practice. Nutritional - nitrogen (N) phosporus (P) nutrient solution. As stress, one Fusarium wilt (caused oxysporum f. sp. lactucae ) considered. characterise lettuce selected stresses, wide set analysis performed, multidisciplinary approach: vivo measurements involved spectral reflectance chlorophyll assessment; at harvest, severity quantification, based vascular browning, evaluated, fresh dry weight, chlorophylls, carotenoids, phenolics, anthocyanins, nitrate, as well macro, micro, mesonutrients content were determined destructive analysis. Results showed that had greater effect than nutrition reducing weight (FW) 69% while increasing antioxidants nutrients, highlighting shift toward stress-induced metabolic reactions. Spectral indices like Pigment Specific Simple Ratio (PSSRa) Index (SRPI) effectively detected revealing significant differences between stressed control plants, there no visual signs alterations leaf color. The principal component (PCA) highlighted FW, disease severity, mineral key drivers changes, emphasizing physiological defense mechanisms under stress. These findings pave way development proactive, reliable, effective methods detection cultivation, also including non-destructive optical approaches.

Language: Английский

Characterisation of combined abiotic and biotic stresses effects on lettuce plants via a multi-analysis approach DOI Creative Commons
Roberta Bulgari, Jouhaina Riahi, Riccardo Cecire

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: May 13, 2025

Crop losses due to abiotic and biotic (in particular fungal diseases) stresses significantly impact yields quality in agricultural productions. Identifying strategies prevent or mitigate those is crucial for developing resilient crop systems. To this aim, a deep complete characterisation of the main effects induced lettuce, representative species grown soilless system within greenhouse, was conducted by applying water, nutritional, individually combination. Specifically, water stress on plants 40% irrigation deficit with respect reference watering practice. Nutritional - nitrogen (N) phosporus (P) nutrient solution. As stress, one Fusarium wilt (caused oxysporum f. sp. lactucae ) considered. characterise lettuce selected stresses, wide set analysis performed, multidisciplinary approach: vivo measurements involved spectral reflectance chlorophyll assessment; at harvest, severity quantification, based vascular browning, evaluated, fresh dry weight, chlorophylls, carotenoids, phenolics, anthocyanins, nitrate, as well macro, micro, mesonutrients content were determined destructive analysis. Results showed that had greater effect than nutrition reducing weight (FW) 69% while increasing antioxidants nutrients, highlighting shift toward stress-induced metabolic reactions. Spectral indices like Pigment Specific Simple Ratio (PSSRa) Index (SRPI) effectively detected revealing significant differences between stressed control plants, there no visual signs alterations leaf color. The principal component (PCA) highlighted FW, disease severity, mineral key drivers changes, emphasizing physiological defense mechanisms under stress. These findings pave way development proactive, reliable, effective methods detection cultivation, also including non-destructive optical approaches.

Language: Английский

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