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Plants
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The Transition from Seed to Seedling II
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The Transition from Seed to Seedling II

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Development and Morphogenesis".

Deadline for manuscript submissions: closed (30 January 2023) | Viewed by 1879

Special Issue Editors

Dr. Galina Smolikova

E-Mail Website
Guest Editor
Department of Plant Physiology and Biochemistry, Saint Petersburg State University, 199034 St. Petersburg, Russia
Interests: seed development; dormancy and germination; photosynthesis in developing seeds; seed desiccation tolerance; seed longevity
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Sergei Medvedev

E-Mail Website
Guest Editor
Department of Plant Physiology and Biochemistry, Saint Petersburg State University, 199034 St. Petersburg, Russia
Interests: plant development; gravitational biology; plant electrophysiology; polarity; plant hormones; calcium signaling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Seed germination represents a critical stage in plants’ life cycle. This process includes three important events—tissue hydration, activation of metabolic activity, and mobilization of reserve nutrients. Resumption of metabolic activity begins with reactivation of enzymatic systems to repair damages, inevitably accumulated in DNA, RNA, and proteins. Global metabolic rearrangements occurring in seeds during germination lead to the initiation of radicle growth. At that moment, seeds lose their tolerance to desiccation and transit to the post-germination stage and seedling development.

Resumption of vegetative development requires massive reprogramming of the transcriptome and attendant signaling pathways, resulting in the silencing of seed maturation genes and the activation of vegetative growth genes. The crucial hormonal signal is a balance between abscisic acid and gibberellins, but other hormones, such as auxins, brassinosteroids, ethylene, cytokinins, and jasmonates, are also involved. A network of transcription factors known as the LAFL, as well as DOG1, are the negative regulators of seed germination. They should also be repressed before seedling development. Repression is associated with chromatin remodeling by Polycomb complexes, as well as PICKLE proteins. Epigenetic modifications, including the methylation of DNA cytosine, histone modifications, and post-transcriptional downregulation of seed maturation genes with miRNA, need to be discussed.

We invite contributions in this Special Issue from scientists who provide new insights into the mechanisms of genetic, epigenetic, and hormonal switches during seed-to-seedling transition.

Dr. Galina Smolikova
Prof. Dr. Sergei Medvedev
Guest Editors

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. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). 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

  • DOG1
  • abscisic acid
  • epigenetic modifications
  • gibberellins
  • LAFL
  • seed desiccation tolerance
  • germination
  • seedling establishment

Related Special Issue

Published Papers (1 paper)

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Research

12 pages, 2273 KiB  
Article
Germination Behavior and Early Seedling Growth in Abies pinsapo Boiss. Seeds
by María Victoria Bravo-Navas and Carolina Sánchez-Romero
Plants 2022, 11(20), 2715; https://doi.org/10.3390/plants11202715 - 14 Oct 2022
Cited by 2 | Viewed by 1572
Abstract
Abies pinsapo Boiss. is a conifer endemic to southern Spain. It is categorized as an endangered species in the IUCN list and the plant communities it forms are considered unique ecosystems, being the remains of fir forests occupying the Mediterranean basin during the [...] Read more.
Abies pinsapo Boiss. is a conifer endemic to southern Spain. It is categorized as an endangered species in the IUCN list and the plant communities it forms are considered unique ecosystems, being the remains of fir forests occupying the Mediterranean basin during the last glaciations. Understanding seed germination and plant production is essential for the management and conservation of A. pinsapo stands. The objective of this work was to investigate the effect of temperature and light on germination behavior and early seedling growth of A. pinsapo seeds from different populations. The results obtained reveal a significant influence of seed origin on germination percentage. Temperature played a critical role on germination rate, with optimal results at 15 °C. Light only significantly affected germination in seeds from Grazalema, although significant population × light and temperature x light interactions could be inferred. In relation to germination kinetics, different responses to the environmental factors tested were observed among seeds from different provenances. Globally, the temperature influenced all the germination parameters, except germination onset. However, light affected germination initiation and speed. Early seedling growth depended on seed origin and temperature. The temperature played a determinant role as temperatures above 15 °C strongly limited plantlets development. Light only significantly influenced root length in plantlets obtained from Grazalema seeds. Full article
(This article belongs to the Special Issue The Transition from Seed to Seedling II)
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