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Effects of Trehalose Biosynthesis on Crop Yield
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Effects of Trehalose Biosynthesis on Crop Yield

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Crop Physiology and Crop Production".

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 1883

Special Issue Editor

Dr. Cara Griffiths

E-Mail Website
Guest Editor
Department of Plant Sciences, Rothamsted Research, West Common, Harpenden AL52JQ, UK
Interests: desiccation tolerance; drought; crop science; sugar signalling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant metabolism is highly regulated, and it appears that part of this regulation is modulated through the trehalose pathway. Trehalose regulates metabolism in light of carbon availability and can result in metabolic reprogramming between anabolic or catabolic pathways, as well as the overall regulation of growth and development. The ubiquity of this pathway in plants has been known for the better part of two decades, and for those working on carbon metabolism, it has been a major revelation. Recent studies of the trehalose biosynthesis pathway have uncovered exciting metabolic, genetic, and evolutionary roles of trehalose, and demonstrated huge potential for trehalose metabolism to be a key player in maximizing crop yields and stress resilience. This Special Issue of Plants will highlight the function and evolution of trehalose pathway in plants, but also how this pathway is pivotal for shaping future crop yields, resilience, and, ultimately, global food security.

Dr. Cara Griffiths
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. 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

  • trehalose
  • food security
  • resilience
  • yield

Published Papers (1 paper)

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Research

18 pages, 2198 KiB  
Article
Trehalose 6-Phosphate/SnRK1 Signaling Participates in Harvesting-Stimulated Rubber Production in the Hevea Tree
by Binhui Zhou, Yongjun Fang, Xiaohu Xiao, Jianghua Yang, Jiyan Qi, Qi Qi, Yujie Fan and Chaorong Tang
Plants 2022, 11(21), 2879; https://doi.org/10.3390/plants11212879 - 27 Oct 2022
Cited by 1 | Viewed by 1540
Abstract
Trehalose 6-phosphate (T6P), the intermediate of trehalose biosynthesis and a signaling molecule, affects crop yield via targeting sucrose allocation and utilization. As there have been no reports of T6P signaling affecting secondary metabolism in a crop plant, the rubber tree Hevea brasiliensis serves [...] Read more.
Trehalose 6-phosphate (T6P), the intermediate of trehalose biosynthesis and a signaling molecule, affects crop yield via targeting sucrose allocation and utilization. As there have been no reports of T6P signaling affecting secondary metabolism in a crop plant, the rubber tree Hevea brasiliensis serves as an ideal model in this regard. Sucrose metabolism critically influences the productivity of natural rubber, a secondary metabolite of industrial importance. Here, we report on the characterization of the T6P synthase (TPS) gene family and the T6P/SNF1-related protein kinase1 (T6P/SnRK1) signaling components in Hevea laticifers under tapping (rubber harvesting), an agronomic manipulation that itself stimulates rubber production. A total of fourteen TPS genes were identified, among which a class II TPS gene, HbTPS5, seemed to have evolved with a function specialized in laticifers. T6P and trehalose increased when the trees were tapped, this being consistent with the observed enhanced activities of TPS and T6P phosphatase (TPP) and expression of an active TPS-encoding gene, HbTPS1. On the other hand, SnRK1 activities decreased, suggesting the inhibition of elevated T6P on SnRK1. Expression profiles of the SnRK1 marker genes coincided with elevated T6P and depressed SnRK1. Interestingly, HbTPS5 expression decreased significantly with the onset of tapping, suggesting a regulatory function in the T6P pathway associated with latex production in laticifers. In brief, transcriptional, enzymatic, and metabolic evidence supports the participation of T6P/SnRK1 signaling in rubber formation, thus providing a possible avenue to increasing the yield of a valuable secondary metabolite by targeting T6P in specific cells. Full article
(This article belongs to the Special Issue Effects of Trehalose Biosynthesis on Crop Yield)
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