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Seed Reserve Mobilization: Unveiling Cellular and Molecular Mechanisms
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Seed Reserve Mobilization: Unveiling Cellular and Molecular Mechanisms

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: 25 October 2024 | Viewed by 515

Special Issue Editor

Prof. Dr. Raquel Iglesias Fernandez

E-Mail Website
Guest Editor
1. Centro de Biotecnología y Genómica de Plantas (CBGP-UPM), 28223 Madrid, Spain
2. Department of Biotechnology-Plant Biology, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas (ETSIAAB-UPM), Universidad Politécnica de Madrid, 28040 Madrid, Spain
Interests: molecular physiology of seed germination of species with agricultural importance (Hordeum vulgare, Prunus domestica); model plants (Brachypodium distachyon and Arabidopsis thaliana L.)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Seed reserve mobilization is a pivotal process in the life cycle of plants, ensuring the successful germination and early growth of new individuals. This intricate biological phenomenon involves the utilization of nutrients stored within seeds to fuel the initial stages of plant development. Cellular biology is instrumental in unraveling the mechanisms via which these processes operate, particularly in elucidating the pivotal role of vesicle trafficking in the mobilization of seed reserves. Moreover, delving into the cellular and molecular aspects of this phenomenon provides a more comprehensive grasp of how the activation of stored nutrients, such as proteins, oils and carbohydrates, unfolds during seed germination. A deepened insight paints a clearer picture of the complex interplay involved. This understanding will not only shed light on a fundamental mechanism in plant development, but also hold the potential to transform agriculture and crop improvement strategies, responding to the urgent challenges of food security in our ever-evolving world.

Dr. Raquel Iglesias Fernández
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.

Keywords

  • seed germination
  • reserve mobilization
  • vesicle trafficking
  • protein storage vacuoles (PSVs)
  • oleosomes
  • seed storage tissues (endosperm, perisperm, cotyledon)

Published Papers (1 paper)

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Review

41 pages, 4340 KiB  
Review
Transcriptional Control of Seed Life: New Insights into the Role of the NAC Family
by Javier Fuertes-Aguilar and Angel J. Matilla
Int. J. Mol. Sci. 2024, 25(10), 5369; https://doi.org/10.3390/ijms25105369 - 14 May 2024
Viewed by 223
Abstract
Transcription factors (TFs) regulate gene expression by binding to specific sequences on DNA through their DNA-binding domain (DBD), a universal process. This update conveys information about the diverse roles of TFs, focusing on the NACs (NAM-ATAF-CUC), in regulating target-gene expression and influencing various [...] Read more.
Transcription factors (TFs) regulate gene expression by binding to specific sequences on DNA through their DNA-binding domain (DBD), a universal process. This update conveys information about the diverse roles of TFs, focusing on the NACs (NAM-ATAF-CUC), in regulating target-gene expression and influencing various aspects of plant biology. NAC TFs appeared before the emergence of land plants. The NAC family constitutes a diverse group of plant-specific TFs found in mosses, conifers, monocots, and eudicots. This update discusses the evolutionary origins of plant NAC genes/proteins from green algae to their crucial roles in plant development and stress response across various plant species. From mosses and lycophytes to various angiosperms, the number of NAC proteins increases significantly, suggesting a gradual evolution from basal streptophytic green algae. NAC TFs play a critical role in enhancing abiotic stress tolerance, with their function conserved in angiosperms. Furthermore, the modular organization of NACs, their dimeric function, and their localization within cellular compartments contribute to their functional versatility and complexity. While most NAC TFs are nuclear-localized and active, a subset is found in other cellular compartments, indicating inactive forms until specific cues trigger their translocation to the nucleus. Additionally, it highlights their involvement in endoplasmic reticulum (ER) stress-induced programmed cell death (PCD) by activating the vacuolar processing enzyme (VPE) gene. Moreover, this update provides a comprehensive overview of the diverse roles of NAC TFs in plants, including their participation in ER stress responses, leaf senescence (LS), and growth and development. Notably, NACs exhibit correlations with various phytohormones (i.e., ABA, GAs, CK, IAA, JA, and SA), and several NAC genes are inducible by them, influencing a broad spectrum of biological processes. The study of the spatiotemporal expression patterns provides insights into when and where specific NAC genes are active, shedding light on their metabolic contributions. Likewise, this review emphasizes the significance of NAC TFs in transcriptional modules, seed reserve accumulation, and regulation of seed dormancy and germination. Overall, it effectively communicates the intricate and essential functions of NAC TFs in plant biology. Finally, from an evolutionary standpoint, a phylogenetic analysis suggests that it is highly probable that the WRKY family is evolutionarily older than the NAC family. Full article
(This article belongs to the Special Issue Seed Reserve Mobilization: Unveiling Cellular and Molecular Mechanisms)
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