Modulation of Morpho-Physiological and Metabolic Profiles of Lettuce Subjected to Salt Stress and Treated with Two Vegetal-Derived Biostimulants

Article Biochemistry & Molecular Biology

Tracking the Biostimulatory Effect of Fractions from a Commercial Plant Protein Hydrolysate in Greenhouse-Grown Lettuce

Francesco Cristofano et al.

Summary: Protein hydrolysate biostimulants are environmentally friendly options for reducing nitrogen input, but their plant growth-promoting mechanisms are still not fully understood.

ANTIOXIDANTS (2023)

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Review Food Science & Technology

Bioactive compounds in lettuce: Highlighting the benefits to human health and impacts of preharvest and postharvest practices

Xiao Yang et al.

Summary: Lettuce is a common leafy vegetable with rich nutrients that contribute to health. Studies have shown that compounds in lettuce can help reduce the risk of chronic diseases. Preharvest and postharvest practices affect the biosynthesis and accumulation of health-promoting compounds in lettuce.

COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY (2022)

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Article Horticulture

Exogenous pig blood-derived protein hydrolysates as a promising method for alleviation of salt stress in tomato (Solanum lycopersicum L.)

Weiwei Zhou et al.

Summary: The study demonstrated that pig blood-derived protein hydrolysates (Pp) application can enhance salt tolerance in tomatoes by regulating osmolytes biosynthesis, ion homeostasis, and antioxidant system responses.

SCIENTIA HORTICULTURAE (2022)

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Article Agronomy

The Effect of NaCl Stress on the Response of Lettuce (Lactuca sativa L.)

Wlodzimierz Bres et al.

Summary: In recent decades, the deterioration of water and soil quality due to increasing human pressure has become a concern. This comprehensive study investigated the effect of sodium chloride, a salinity inducer, on the yield, photosynthesis efficiency, and nutrient content of hydroponically grown lettuce. The results showed that high concentrations of sodium chloride significantly altered the chemical composition of the lettuce leaves, leading to reduced yield and increased dry matter content.

AGRONOMY-BASEL (2022)

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Review Plant Sciences

A Meta-Analysis of Biostimulant Yield Effectiveness in Field Trials

Jing Li et al.

Summary: This study conducted a comprehensive meta-analysis on the impact of biostimulants on crop yield and derived important conclusions, including the effects of biostimulant application methods, climate conditions, and soil properties on crop yield.

FRONTIERS IN PLANT SCIENCE (2022)

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Article Plant Sciences

Application of Biostimulants in Tomato Plants (Solanum lycopersicum) to Enhance Plant Growth and Salt Stress Tolerance

Stella Gedeon et al.

Summary: Under the era of climate change, the application of biostimulants in plants has been shown to enhance plant tolerance and performance under adverse conditions. This study focused on the effects of five biostimulants based on biocompost and biofertilizer compounds on tomato plants. Among the different formulations applied, those with 70% biofertilizer and 30% biocompost or 70% biocompost and 30% biofertilizer showed the most promising results.

PLANTS-BASEL (2022)

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Article Agronomy

Plant-Derived Biostimulants Differentially Modulate Primary and Secondary Metabolites and Improve the Yield Potential of Red and Green Lettuce Cultivars

Maria Giordano et al.

Summary: The use of biostimulants in modern agriculture has expanded rapidly in recent years due to their beneficial effects on crop yield and product quality. In this study, the efficacy of two plant-derived biostimulants on lettuce cultivars was evaluated, showing cultivar-dependent responses to biostimulant types. Biostimulants can potentially improve lettuce yield and quality by stimulating plant physiological processes and increasing the biosynthesis of various compounds.

AGRONOMY-BASEL (2022)

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Article Plant Sciences

Morpho-Anatomical, Physiological, and Mineral Composition Responses Induced by a Vegetal-Based Biostimulant at Three Rates of Foliar Application in Greenhouse Lettuce

Petronia Carillo et al.

Summary: The use of natural plant biostimulants is a promising strategy for increasing the quality and yield of horticultural products. A legume-derived biostimulant was applied to greenhouse lettuce at different doses, and it was found that both lower and higher doses increased nutrient use efficiency, root dry weight, and leaf area. The higher dose enhanced photosynthetic activity and the lower dose had specific effects on roots.

PLANTS-BASEL (2022)

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Article Horticulture

Plant biostimulants from seaweeds or vegetal proteins enhance the salinity tolerance in greenhouse lettuce by modulating plant metabolism in a distinctive manner

Youssef Rouphael et al.

Summary: This study investigated the efficacy of seaweed and plant-based biostimulants on greenhouse lettuce, finding that both biostimulants can enhance growth and yield, reduce Na and Cl content under saline conditions, and induce metabolic reprogramming.

SCIENTIA HORTICULTURAE (2022)

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Article Plant Sciences

Protein Hydrolysates from Animal or Vegetal Sources Affect Morpho-Physiological Traits, Ornamental Quality, Mineral Composition, and Shelf-Life of Chrysanthemum in a Distinctive Manner

Petronia Carillo et al.

Summary: This study assesses the effects of three commercial biostimulants on two chrysanthemum cultivars and finds that plant-derived protein hydrolysates can improve plant growth and flower diameter, while animal-derived protein hydrolysates do not have these effects. Additionally, plant-derived protein hydrolysates can increase fresh plant biomass and the levels of nitrate, phosphorus, and calcium in the leaves.

PLANTS-BASEL (2022)

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Article Horticulture

Effect of Biostimulant Application on Plant Growth, Chlorophylls and Hydrophilic Antioxidant Activity of Spinach (Spinacia oleracea L.) Grown under Saline Stress

Christophe El-Nakhel et al.

Summary: Salinity problems in irrigated agricultural lands can be mitigated by the application of eco-friendly approaches such as protein hydrolysates. A greenhouse experiment on spinach showed that foliar application of a protein hydrolysate from vegetal origin helped mitigate the adverse effects of saline stress, increasing chlorophyll content and yield. The results provide valuable insights into the effects of protein hydrolysate application on leafy vegetables, aiding growers in maintaining high crop yield and quality under saline conditions without access to alternative irrigation water sources.

HORTICULTURAE (2022)

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Article Agriculture, Multidisciplinary

Acclimation with humic acids enhances maize and tomato tolerance to salinity

Aline Costa Souza et al.

Summary: This study demonstrated that pre-treating plant seedlings with humic acids can alleviate salinity stress by regulating ion balance, enhancing plasma membrane proton pump activity, and improving photosynthesis rate and plant growth. Additionally, humic acids activate salt defense mechanisms in plants, reducing the impact of salinity stress.

CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE (2021)

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Article Multidisciplinary Sciences

The application of a biostimulant based on tannins affects root architecture and improves tolerance to salinity in tomato plants

Cristina Campobenedetto et al.

Summary: The study investigated the effects of a tannin-based biostimulant on tomato roots grown under salt stress conditions, revealing significant increases in root weight and length, as well as upregulation of genes related to root development and salt stress tolerance. The biostimulant also showed potential in regulating essential transcription factors and stress responsive genes, providing adequate plant nourishment in salty soils.

SCIENTIFIC REPORTS (2021)

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Article Plant Sciences

Foliar Application of Different Vegetal-Derived Protein Hydrolysates Distinctively Modulates Tomato Root Development and Metabolism

Angela Valentina Ceccarelli et al.

Summary: This study found that protein hydrolysates (PHs) have biostimulant activity by modulating plant hormone profiles and secondary metabolism to promote root growth and enhance crop resilience to stress. The research also demonstrated that PHs from different botanical sources have distinctive metabolomic responses, indicating that a generalized crop response to PHs cannot be defined and specific effects need to be investigated.

PLANTS-BASEL (2021)

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Review Agronomy

Anthocyanins: Biosynthesis, Distribution, Ecological Role, and Use of Biostimulants to Increase Their Content in Plant Foods-A Review

Giuseppe Mannino et al.

Summary: Plant biostimulants have been increasingly used in agriculture as potential agents to mitigate abiotic stress. However, limited information is available on their influence on fruit quality or changes in phytochemical composition. This review focuses on the relationship between anthocyanin content and biostimulant application, providing insights into the potential implications for human health and changes in anthocyanin content in common foods.

AGRICULTURE-BASEL (2021)

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Article Biochemistry & Molecular Biology

Pearl Grey Shading Net Boosts the Accumulation of Total Carotenoids and Phenolic Compounds That Accentuate the Antioxidant Activity of Processing Tomato

Luigi Formisano et al.

Summary: This study found that using pearl grey shading nets can increase the total phenolic compounds and antioxidant activities of tomato fruits grown in summer under Mediterranean climate, without affecting fruit color or yield.

ANTIOXIDANTS (2021)

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Article Plant Sciences

Seed Priming With Protein Hydrolysates Improves Arabidopsis Growth and Stress Tolerance to Abiotic Stresses

Mirella Sorrentino et al.

Summary: The study utilized a high-throughput screening method using simple RGB imaging and untargeted metabolomics to understand the mechanism of action of protein hydrolysates in Arabidopsis plants grown under optimal and salt-stress conditions. By using a Plant Biostimulant Characterization (PBC) index, two protein hydrolysates were identified as effective growth regulators and stress alleviators. The untargeted metabolomics approach revealed that these best performing biostimulants reduced stress-related molecules in the plants, alleviating the growth inhibition caused by salt stress.

FRONTIERS IN PLANT SCIENCE (2021)

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Article Agronomy

Nutrient Solution Deprivation as a Tool to Improve Hydroponics Sustainability: Yield, Physiological, and Qualitative Response of Lettuce

Michele Ciriello et al.

Summary: Deprivation of nutrient solution 6 days before harvest led to a significant reduction in leaf nitrate content (-53.3%) and a yield loss of 13.8%, while deprivation 3 days before harvest increased total phenols (32.5%) and total ascorbic acid (102.1%), along with reductions in antioxidant activity (82.7%) and anthocyanins (7.9%), with increases in sucrose (38.9%), starch (19.5%), and GABA (28.2%), and a yield reduction of only 4.7%.

AGRONOMY-BASEL (2021)

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Article Agronomy

Foliar and Root Applications of Vegetal-Derived Protein Hydrolysates Differentially Enhance the Yield and Qualitative Attributes of Two Lettuce Cultivars Grown in Floating System

Francesco Cristofano et al.

Summary: The study found that the green lettuce cultivar performed better with nutrient solution applications, while the red cultivar showed higher yield and more concentrated phytochemical content under combined treatments.

AGRONOMY-BASEL (2021)

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Review Biochemistry & Molecular Biology

Biostimulant Substances for Sustainable Agriculture: Origin, Operating Mechanisms and Effects on Cucurbits, Leafy Greens, and Nightshade Vegetables Species

Francesco Cristofano et al.

Summary: Climate change poses challenges to agriculture, which needs sustainable intensification. Biostimulant substances could be a valid strategy to improve crop production and quality.

BIOMOLECULES (2021)

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Article Plant Sciences

Divergent Leaf Morpho-Physiological and Anatomical Adaptations of Four Lettuce Cultivars in Response to Different Greenhouse Irradiance Levels in Early Summer Season

Luigi Formisano et al.

Summary: Lettuce is a winter-spring leafy vegetable with high demand for year-round fresh supply, necessitating off-season production using agronomic strategies such as shading net installations. Research showed that certain lettuce cultivars had increased yields under shading conditions, while others performed better without shading.

PLANTS-BASEL (2021)

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Review Plant Sciences