Plant–Fungus Interactions in Agronomic Systems

A Special Issue of Agronomy (ISSN 2073-4395).

Deadline for manuscript submissions: 20 September 2026 | Viewed by 2349

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Guest Editor
Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Mexico
Interests: fungal–plant interactions; bioremediation; metagenomics and biodiversity; discovery of efficient enzymes and proteins for sustainable biofuel production; biocontrol of pests and fungal-mediated plant growth promotion
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Special Issue Information

Dear Colleagues,

Global climate change has affected agronomy worldwide. Intensive agriculture to meet the global food demand has become troublesome due to the use of large amounts of agrochemicals such as fertilizers and pesticides. This not only raises the costs of the crops but also endangers the health of whole ecosystems. In particular, human health has become an issue, especially because of the use of different types of pesticides (insecticides, fungicides, nematicides, etc.) or even fertilizers that contain metals (copper, zinc, nickel, etc.) or other elements like sulfur, phosphorous or ammonia. The widespread use of pesticides has also affected seriously pollinator species ranging from bees and other insects to mammals like bats.

For centuries, it has been known that some microbial–plant interactions are beneficial to plants and promote their growth through nourishing and modifying the root architecture. Probably the best-known symbiosis between plants and microbes is that among legumes and nitrogen fixing bacteria, mainly Rhizobium spp. (although Burkholderia, Azospirilum, Azotobacter, etc., have also been studied profoundly).

However, fungi also play an essential role in plant nutrition, defense systems and tolerance to several kinds of environmental challenges. This field has strangely been neglected for years and only the association of some mycorrhizae and that of Trichoderma spp. have been described in detail. It is needless to say that fungi can also pose a significant problem in agronomy; most of crop losses are due to fungal infections in crop plants, so an efficient way to control these pests is urgently needed.

This Special Issue in “Agronomy” seeks to publish advances in the knowledge of other fungal–plant interactions (although submissions on mycorrhizae and Trichoderma spp. will also be welcomed). Recently, many reports dealing with other fungal species (Aspergilli, Penicillium, Metarhizium, etc.) have shown that fungi have great potential to substitute pesticides and fertilizers and contribute to a more healthy and sustainable agriculture. In addition, plant pathogen fungi must be studied to prevent crop infections. Therefore, any study that deals with the phenomena described above will be welcome in this Special Issue of Agronomy.

Prof. Dr. Jorge L. Folch-Mallol
Guest Editor

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Keywords

  • plant–fungal interaction
  • abiotic stress tolerance triggered by fungi
  • nurture of plants due to fungi
  • pathogenic plant fungi
  • host–interaction mechanisms
  • abiotic stress tolerance in plant–fungal interaction

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Published Papers (1 paper)

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Research

28 pages, 3956 KB  
Article
A Novel Granular Formulation of Filamentous Fungi (Aspergillus tubingensis and Trichoderma virens): Development, Characterization, and Evaluation for Enhanced Phosphorus Availability in Agricultural Soils
by José Tomás Tavarez-Arriaga, Beatriz Flores-Samaniego, María del Rayo Sánchez-Carbente and Jorge Luis Folch-Mallol
Agronomy 2026, 16(2), 169; https://doi.org/10.3390/agronomy16020169 - 9 Jan 2026
Cited by 1 | Viewed by 1609
Abstract
Phosphorus (P) is an essential nutrient in plant development, but its availability in the soil is often limited due to chemical fixation and poor solubility. This study presents the development, characterization and evaluation of a novel granular bioinoculant formulated with Aspergillus tubingensis (P-solubilizing) [...] Read more.
Phosphorus (P) is an essential nutrient in plant development, but its availability in the soil is often limited due to chemical fixation and poor solubility. This study presents the development, characterization and evaluation of a novel granular bioinoculant formulated with Aspergillus tubingensis (P-solubilizing) and Trichoderma virens (P-mineralizing) using clinoptilolite (CZ) as a carrier to improve P bioavailability. The formulation process included the evaluation of the proposed components, the standardization of conidia production in different media cultures and conditions, the elaboration and characterization of the bioinoculant and its evaluation in plants. In this study, in vitro analysis demonstrated the synergistic effect of the components, showing that in all treatments with dual inoculation and CZ, the amount of soluble phosphorus (SP) was higher than in their counterparts (from 27.8 to 36.8 mg·L−1). A concentration greater than 1 × 109 CFU·mL−1 was obtained by standardizing the production of conidia in different media (PDA, V8-Agar and Molasses Agar), which were then used to produce granular batches containing at least 2 × 107 CFU·g−1. Furthermore, the size (88% of the granules measured <4.5 mm), purity (<2 CFU·g−1 in 10−4 dilution), and moisture content of the prototype granules (3.3–3.8%) were confirmed to be within established international quality parameters. Plant evaluations in chili and tomato demonstrated the formulation efficacy, showing an increase in both soluble and foliar P content (with at least 30% more than controls), alongside improvements in all parameters evaluated that are related to plant growth promotion (with at least 15% more growth than controls). The development of this formulation prototype represents a focused effort toward process standardization and optimization required to validate developed formulations, thus promoting the advancement of applied biotechnology. Full article
(This article belongs to the Special Issue Plant–Fungus Interactions in Agronomic Systems)
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