Amino Acids in Plants: Regulation and Functions in Development and Stress Defense

  • 50k

    Total Downloads

  • 302k

    Total Views and Downloads

Download PDFDownload EPUB

Submit your idea

Select the journal/section where you want your idea to be submitted:

Submit your manuscript summarySubmit your manuscript

About this Research Topic

Submission closed

Background

For quite a long time, research on amino acid metabolism received only limited attention in the areas of plant physiology and biochemistry. Owing to the essential function of amino acids in protein synthesis, it was tempting to assume that plants use and metabolize amino acids in the same manner as microorganism or humans do. However, as fully autotrophic organisms, plants face fundamentally different challenges compared to organisms that make a living on plant- (or algae-) produced biomass. Furthermore, plants produce literally hundreds of non-proteinogenic amino acids or amino acid-derived secondary metabolites and thus require a very distinct regulatory system to coordinate the needs of primary and secondary metabolism. The distribution of amino acid metabolism between roots and aboveground organs or among the different subcellular compartments adds another level of complexity further distinguishing plants from prokaryotes or animals.

From the perspective of human nutrition, the amino acids that we cannot synthesize by ourselves are the most interesting. Accordingly, the efforts to understand the routes and regulation of Lys, Met, and Trp biosynthesis has boosted amino acid research in plants, since these three amino acids are often contained in limiting amounts in staple crops. From an agricultural perspective, amino acid biosynthetic pathways that are exclusively found in plants were analyzed and used for the development of herbicides.

At present, the threats of climate change and groundwater contamination by excess nitrogen fertilization call for a re-focusing of our efforts. Optimal productivity is currently achieved by massive application of nitrogen-containing fertilizers and is yet limited by the efficiency of the plants in taking up, distributing, storing and assimilating the nitrogen, with all these processes being governed by amino acid metabolism and transport. Similarly, many defense responses of plants against biotic or abiotic stress involve metabolic adjustments in amino acid metabolism to counteract detrimental environmental impacts directly or to provide precursors for defense compounds. Several amino acids emerge as important signaling molecules that orchestrate plant growth and development by integrating the metabolic status of the plant with environmental signals, especially in stressful conditions. However, our knowledge about amino acid metabolism, the mechanisms that regulate the levels of free amino acids and the diverse functions of amino acids in plants is far from complete.

This Research Topic aims to collect contributions from different facets of amino acid metabolism, transport or signaling to bring together and integrate into a comprehensive view the latest advances in our understanding of the multiple functions of amino acids in plants. All types of articles related to this field of plant physiology, including Original Research, Reviews, Mini Reviews, Methods, Commentaries, and Opinions are welcome.

Keywords: Amino Acid Metabolism, Amino Acid Transport, Stress Responses, Nitrogen Sensing, Signaling and Assimilation, Nitrogen Use Efficiency, Crop Enhancement

Important note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Topic editors

Frequently asked questions

  • Frontiers' Research Topics are collaborative hubs built around an emerging theme.Defined, managed, and led by renowned researchers, they bring communities together around a shared area of interest to stimulate collaboration and innovation.

    Unlike section journals, which serve established specialty communities, Research Topics are pioneer hubs, responding to the evolving scientific landscape and catering to new communities.

  • The goal of Frontiers' publishing program is to empower research communities to actively steer the course of scientific publishing. Our program was implemented as a three-part unit with fixed field journals, flexible specialty sections, and dynamically emerging Research Topics, connecting communities of different sizes and maturity.

    Research Topics originate from the scientific community. Many of our Research Topics are suggested by existing editorial board members who have identified critical challenges or areas of interest in their field.

  • As an editor, Research Topics will help you build your journal, as well as your community, around emerging, cutting-edge research. As research trailblazers, Research Topics attract high-quality submissions from leading experts all over the world.

    A thriving Research Topic can potentially evolve into a new specialty section if there is sustained interest and a growing community around it.

  • Each Research Topic must be approved by the specialty chief editor, and they fall under the editorial oversight of our editorial boards, supported by our in-house research integrity team. The same standards and rigorous peer review processes apply to articles published as part of a Research Topic as for any other article we publish.

      In 2023, 80% of the Research Topics we published were edited or co-edited by our editorial board members, who are already familiar with their journal's scope, ethos, and publishing model. All other topics are guest edited by leaders in their field, each vetted and formally approved by the specialty chief editor.

  • Publishing your article within a Research Topic with other related articles increases its discoverability and visibility, which can lead to more views, downloads, and citations. Research Topics grow dynamically as more published articles are added, causing frequent revisiting, and further visibility.

    As Research Topics are multidisciplinary, they are cross-listed in several fields and section journals – increasing your reach even more and giving you the chance to expand your network and collaborate with researchers in different fields, all focusing on expanding knowledge around the same important topic.

    Our larger Research Topics are also converted into ebooks and receive social media promotion from our digital marketing team.

     

  • Frontiers offers multiple article types, but it will depend on the field and section journals in which the Research Topic will be featured. The available article types for a Research Topic will appear in the drop-down menu during the submission process.

    Check available article types here 

  • Yes, we would love to hear your ideas for a topic. Most of our Research Topics are community-led and suggested by researchers in the field. Our in-house editorial team will contact you to talk about your idea and whether you’d like to edit the topic. If you’re an early-stage researcher, we will offer you the opportunity to coordinate your topic, with the support of a senior researcher as the topic editor. 

    Suggest your topic here 

  • A team of guest editors (called topic editors) lead their Research Topic. This editorial team oversees the entire process, from the initial topic proposal to calls for participation, the peer review, and final publications.

    The team may also include topic coordinators, who help the topic editors send calls for participation, liaise with topic editors on abstracts, and support contributing authors. In some cases, they can also be assigned as reviewers.

  • As a topic editor (TE), you will take the lead on all editorial decisions for the Research Topic, starting with defining its scope. This allows you to curate research around a topic that interests you, bring together different perspectives from leading researchers across different fields and shape the future of your field. 

     

    You will choose your team of co-editors, curate a list of potential authors, send calls for participation and oversee the peer review process, accepting or recommending rejection for each manuscript submitted.

  • As a topic editor, you're supported at every stage by our in-house team. You will be assigned a single point of contact to help you on both editorial and technical matters. Your topic is managed through our user-friendly online platform, and the peer review process is supported by our industry-first AI review assistant (AIRA).

  • If you’re an early-stage researcher, we will offer you the opportunity to coordinate your topic, with the support of a senior researcher as the topic editor. This provides you with valuable editorial experience, improving your ability to critically evaluate research articles and enhancing your understanding of the quality standards and requirements for scientific publishing, as well as the opportunity to discover new research in your field, and expand your professional network.

  • Yes, certificates can be issued on request. We are happy to provide a certificate for your contribution to editing a successful Research Topic.

  • Research Topics thrive on collaboration and their multi-disciplinary approach around emerging, cutting-edge themes, attract leading researchers from all over the world.

  • As a topic editor, you can set the timeline for your Research Topic, and we will work with you at your pace. Typically, Research Topics are online and open for submissions within a few weeks and remain open for participation for 6 – 12 months. Individual articles within a Research Topic are published as soon as they are ready.

    Find out more about our Research Topics

  • Our fee support program ensures that all articles that pass peer review, including those published in Research Topics, can benefit from open access – regardless of the author's field or funding situation.

    Authors and institutions with insufficient funding can apply for a discount on their publishing fees. A fee support application form is available on our website.

  • In line with our mission to promote healthy lives on a healthy planet, we do not provide printed materials. All our articles and ebooks are available under a CC-BY license, so you can share and print copies.

     

Participating Journals

Impact

  • 302kTopic views
  • 231kArticle views
  • 50kArticle downloads
View impact