The Role of Nutrients in Crop Performance Under Biotic and Abiotic Stresses

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: 15 May 2026 | Viewed by 325

Special Issue Editors


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Guest Editor
CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
Interests: plant ecophysiology; plant–pathogen interactions; environmental contamination and restoration; genotype X–environment interactions; soil health; plant protection
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
Interests: crop valorization; genotype X–environment interactions; micronutrients; mineral deficiency; nanofertilization; plant nutrition
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Mineral nutrition has been central to agronomy since the first experiments demonstrating that essential elements govern plant growth and yield. Over the past few decades, research has moved from descriptive deficiency and toxicity charts to a mechanistic view of how nutrients shape plant physiology, development, and interactions with the environment. Drought, heat, salinity, flooding, cold, ozone, and biotic pressures impose concurrent constraints on crops, and tolerance often hinges on nutrient-enabled processes such as osmotic adjustment, redox homeostasis, membrane stability, hormonal signaling, and crosstalk with the microbiome. 

This Special Issue will showcase how mineral nutrients drive crop tolerance to environmental stress under field and controlled conditions. We invite studies that connect nutrient supply, uptake, transport, and partitioning with measurable stress tolerance outcomes at the organ, plant, and cropping system levels. We particularly welcome research that translates mechanistic insights into agronomic management, breeding targets, and decision support for sustainable production, especially as it relates to the following:

  • Nutrient mediated priming against abiotic and biotic stress;
  • Quantitative links between nutrient stoichiometry and stress physiology;
  • Nutrient interactions with plant associated microbes;
  • Precision and site-specific fertilization under climate variability;
  • Novel inputs including chelates and nano-enabled formulations;
  • High-throughput phenotyping combined with robust statistics and modeling;
  • Data-rich field trials that quantify tolerance, yield stability, and resource use efficiency. 

For this Special Issue, we welcome original research that links nutrients to stress tolerance from gene to field, including multi-season and multi-location trials, reviews and mini-reviews that synthesize mechanisms and management options across crops and stresses; perspectives that frame emerging questions and practical implications for farmers and breeders; methods and data notes that enable reproducible nutrient and stress assays, imaging, or analytics; and meta analyses and modeling studies that integrate heterogeneous datasets to guide nutrient management under stress.

Dr. Marta Nunes da Silva
Dr. Carla Sofia Sancho Dos Santos
Guest Editors

Manuscript Submission Information

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Keywords

  • nutrient use efficiency
  • micronutrients
  • stress tolerance
  • priming
  • nanofertilizers
  • crop protection
  • precision fertilization
  • sustainable farming

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Published Papers (1 paper)

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Research

26 pages, 14535 KB  
Article
Comparative Transcriptomic Analysis of High- and Low-Protein Wheat Lines Reveals Differential Nitrogen Responses at the Seedling Stage
by Min Jeong Hong, Chul Soo Park and Dae Yeon Kim
Agronomy 2026, 16(6), 628; https://doi.org/10.3390/agronomy16060628 - 16 Mar 2026
Abstract
Nitrogen (N) availability is a critical determinant of grain yield and protein quality in wheat (Triticum aestivum L.). To elucidate the molecular mechanisms underlying nitrogen response associated with nitrogen use efficiency (NUE), a comparative transcriptomic analysis of high grain protein content (HP) [...] Read more.
Nitrogen (N) availability is a critical determinant of grain yield and protein quality in wheat (Triticum aestivum L.). To elucidate the molecular mechanisms underlying nitrogen response associated with nitrogen use efficiency (NUE), a comparative transcriptomic analysis of high grain protein content (HP) and low grain protein content (LP) wheat lines during N resupply at the seedling stage is conducted in this study, with sampling conducted at T1 (one day after treatment) and T3 (three days after treatment). Our results reveal that the HP line exhibits an early-responsive and well-coordinated metabolic pattern, whereas the LP line shows a distinct temporal response characterized by delayed adjustments. Integrated GSEA and KEGG analyses demonstrated that the HP line prioritized protein processing in the endoplasmic reticulum and diterpenoid biosynthesis, potentially associated with enhanced protein quality control and early signaling efficacy. This allows the HP line to synchronize its N assimilation machinery with the transient peak of N availability at T1 and establishes a robust foundation for protein accumulation. Conversely, the LP line redirected its metabolic resources toward glutathione metabolism and flavonoid biosynthesis to mitigate N-induced oxidative instability. This metabolic shift increases the energetic usage required for antioxidant defense and subsequently deviates resources away from productive N assimilation. These divergent metabolic landscapes were orchestrated by a hierarchical network of transcription factors (TFs). In leaves, the MYB and NAC families showed a more disciplined and immediate increase in the HP line, whereas the LP line demonstrated a delayed peak at T3. In root tissues, while Dof and NAC families were rapidly induced and concluded in the HP line, the LP line exhibited a sluggish sensing-to-response mechanism with prolonged or specific late-stage activation at T3. These results indicate that the capacity for rapid metabolic synchronization and disciplined transcriptomic mobilization is a key physiological indicator of high-protein potential in wheat. This insight provides essential molecular targets for breeding programs aimed at improving NUE and grain quality. Full article
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