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Special Issue "Advances in Arbuscular Mycorrhizal Symbiosis"

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 31 March 2024 | Viewed by 834

Special Issue Editor

Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín (CSIC), Profesor Albareda nº 1, 18008 Granada, Spain
Interests: arbuscular mycorrhizal symbiosis; aquaporins; drought stress; plant-growth-promoting rhizo-bacteria; salt stress; root hydraulics
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Special Issue Information

Dear Colleagues,

The term Mycorrhiza comes from the Greek words "mycos", meaning fungus, and "rhiza", meaning root, and refers to a mutualistic symbiosis between roots of higher plants and a group of soil fungi belonging to the phyla Glomeromycota, Basidiomycota, or Ascomycota. Through this mutualistic association, the plant receives soil nutrients (especially phosphorus) and water, while the fungus receives a protected ecological niche and plant-derived carbon compounds for its nutrition. Among mycorrhizal symbioses, the so-called “Arbuscular mycorrhiza (AM)”is the most abundant type and is characterized by the fact that the fungal symbiont (arbuscular mycorrhizal fungus or AMF) colonizes the cortical cells in the roots of vascular plants and forms special structures called arbuscules, in which takes place the exchange of nutrients and compounds between both symbiotic partners. AM fungi occur in the majority of natural habitats and provide a range of important ecological services, in particular by improving plant nutrition, biotic and abiotic stress resistance and tolerance, and soil structure and fertility.

This Special Issue aims to reveal the current state and recent advancements in the understanding of arbuscular mycorrhizal symbiosis from genetic, epigenetic, biochemical, physiological, and ecological perspectives. Understanding the future potential and limits of this symbiosis will enhance the use of AM fungi for improving plant performance and productivity, mainly under adverse environmental conditions. This issue aims to cover the function of arbuscular mycorrhizal (AM) symbioses, especially in the interplay between direct nutrient element uptake via plant roots and uptake via the AM fungal pathway. Additionally, understanding the role of the AM symbiosis in facing the adverse effects of the current climate change scenario is a main objective of this Special Issue. Original research, review, methods, perspective, and opinion articles are all welcome.

Dr. Juan Manuel Ruiz Lozano
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • arbuscular mycorrhizal (AM) symbioses
  • arbuscular mycorrhizal fungi
  • mutualistic association
  • plant nutrition
  • biotic and abiotic stress resistance

Published Papers (1 paper)

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Genome-Wide Analysis of the PHT Gene Family and Its Response to Mycorrhizal Symbiosis in Tomatoes under Phosphate Starvation Conditions
Int. J. Mol. Sci. 2023, 24(12), 10246; https://doi.org/10.3390/ijms241210246 - 16 Jun 2023
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Phosphate is one of the essential mineral nutrients. Phosphate transporter genes (PHTs) play an important role in Pi acquisition and homeostasis in tomato plants. However, basic biological information on PHT genes and their responses of symbiosis with arbuscular mycorrhizal in the genome remains [...] Read more.
Phosphate is one of the essential mineral nutrients. Phosphate transporter genes (PHTs) play an important role in Pi acquisition and homeostasis in tomato plants. However, basic biological information on PHT genes and their responses of symbiosis with arbuscular mycorrhizal in the genome remains largely unknown. We analyzed the physiological changes and PHT gene expression in tomatoes (Micro-Tom) inoculated with arbuscular mycorrhizal (AM) fungi (Funneliformis mosseae) under different phosphate conditions (P1: 0 µM, P2: 25 µM, and P3: 200 µM Pi). Twenty-three PHT genes were identified in the tomato genomics database. Protein sequence alignment further divided the 23 PHT genes into three groups, with similar classifications of exons and introns. Good colonization of plants was observed under low phosphate conditions (25 µM Pi), and Pi stress and AM fungi significantly affected P and N accumulation and root morphological plasticity. Moreover, gene expression data showed that genes in the SlPHT1 (SlPT3, SlPT4, and SlPT5) gene family were upregulated by Funneliformis mosseae under all conditions, which indicated that these gene levels were significantly increased with AM fungi inoculation. None of the analyzed SlPHT genes in the SlPH2, SlPHT3, SlPHT4, and SlPHO gene families were changed at any Pi concentration. Our results indicate that inoculation with AM fungi mainly altered the expression of the PHT1 gene family. These results will lay a foundation for better understanding the molecular mechanisms of inorganic phosphate transport under AM fungi inoculation. Full article
(This article belongs to the Special Issue Advances in Arbuscular Mycorrhizal Symbiosis)
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