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Improving Nitrogen Use Efficiency in Model and Crop Plants: From...
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Improving Nitrogen Use Efficiency in Model and Crop Plants: From Lab to Field

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

Deadline for manuscript submissions: closed (20 November 2022) | Viewed by 3190

Special Issue Editors

Prof. Dr. Maria Rosa Abenavoli

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Guest Editor
Department of AGRARIA, Mediterranean University of Reggio Calabria, Feo di Vito, 89124 Reggio Calabria, Italy
Interests: physiology, biochemistry and molecular biology of plant nutrition with particular focus on nitrate uptake, assimilation, translocation and remobilization; nitrogen use efficiency evaluation in herbaceous and woody crops at transcriptomics and metabolomics level; morpho-physiological and molecular mechanisms of plants in response to allelochemicals, humic substances, biowaste and biostimulants application
Dr. Francesco Sunseri

E-Mail Website
Guest Editor
Department AGRARIA, University Mediterranea of Reggio Calabria, Località Feo di Vito snc, I-89124 Reggio Calabria, Italy
Interests: plant genetics and breeding; molecular-assisted selection (MAS); vegetable crops (mainly tomato and eggplant); abiotic stress; nitrogen use efficiency (NUE); genetic structure of plant biodiversity; genomics; transcriptomics; genotyping-by-sequencing (GBS)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Agostino Sorgonà

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Guest Editor
Dipartimento Agraria, Università degli Studi di Reggio Calabria, Reggio Calabria, Italy
Interests: root biology mainly focused on the relationships between root form and function (nutrient acquisition and metabolism, exudation process, microbial interaction); plant adaptation in abiotic-stressed environments (nutrient deficiency, drought and heat stress, in single and combined form); root morpho-physiological and molecular mechanisms in response to allelochemicals, biowaste and biostimulants application

Special Issue Information

Dear Colleagues,

Nitrogen (N) availability is one of the major factors limiting plant growth and productivity, being a structural component of amino acids, nucleic acids, and other N-containing biomolecules. To maintain high crop yields for meeting global food demands in intensive agriculture, N fertilizers have been massively applied with a negative impact on the environment and human health. In limited N fertilizer cropping systems, improving the nitrogen use efficiency (NUE) and identifying high-NUE genotypes are important goals for maintaining a high sustainable yield. NUE is a complex multigenic trait, which encompasses the plant’s efficiency to absorb (NUpE component), assimilate, transport, and remobilize the available N from the soil (NUtE component). It is governed by interacting genetic and environmental (GxE) factors. NUE improvement might permit solving the trade-off between productivity and environmental impacts. This Special Issue aims to publish the most recent discoveries on phenotyping, mapping quantitative trait loci (QTLs), and selecting candidate genes for NUE improvement in model and crop plants.

Prof. Dr. Maria Rosa Abenavoli
Prof. Dr. Francesco Sunseri
Prof. Dr. Agostino Sorgonà
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

  • NUE index
  • NUpE
  • NUtE
  • nitrogen management
  • N uptake, assimilation, and remoblization
  • NUE in model and crop plants

Published Papers (1 paper)

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Research

19 pages, 1041 KiB  
Article
Uncovering Pathways Highly Correlated to NUE through a Combined Metabolomics and Transcriptomics Approach in Eggplant
by Antonio Mauceri, Meriem Miyassa Aci, Laura Toppino, Sayantan Panda, Sagit Meir, Francesco Mercati, Fabrizio Araniti, Antonio Lupini, Maria Rosaria Panuccio, Giuseppe Leonardo Rotino, Asaph Aharoni, Maria Rosa Abenavoli and Francesco Sunseri
Plants 2022, 11(5), 700; https://doi.org/10.3390/plants11050700 - 04 Mar 2022
Cited by 5 | Viewed by 2665
Abstract
Nitrogen (N) fertilization is one of the main inputs to increase crop yield and food production. However, crops utilize only 30–40% of N applied; the remainder is leached into the soil, causing environmental and health damage. In this scenario, the improvement of nitrogen-use [...] Read more.
Nitrogen (N) fertilization is one of the main inputs to increase crop yield and food production. However, crops utilize only 30–40% of N applied; the remainder is leached into the soil, causing environmental and health damage. In this scenario, the improvement of nitrogen-use efficiency (NUE) will be an essential strategy for sustainable agriculture. Here, we compared two pairs of NUE-contrasting eggplant (Solanum melongena L.) genotypes, employing GC-MS and UPLC-qTOF-MS-based technologies to determine the differential profiles of primary and secondary metabolites in root and shoot tissues, under N starvation as well as at short- and long-term N-limiting resupply. Firstly, differences in the primary metabolism pathways of shoots related to alanine, aspartate and glutamate; starch, sucrose and glycine; serine and threonine; and in secondary metabolites biosynthesis were detected. An integrated analysis between differentially accumulated metabolites and expressed transcripts highlighted a key role of glycine accumulation and the related glyA transcript in the N-use-efficient genotypes to cope with N-limiting stress. Interestingly, a correlation between both sucrose synthase (SUS)- and fructokinase (scrK)-transcript abundances, as well as D-glucose and D-fructose accumulation, appeared useful to distinguish the N-use-efficient genotypes. Furthermore, increased levels of L-aspartate and L-asparagine in the N-use-efficient genotypes at short-term low-N exposure were detected. Granule-bound starch synthase (WAXY) and endoglucanase (E3.2.1.4) downregulation at long-term N stress was observed. Therefore, genes and metabolites related to these pathways could be exploited to improve NUE in eggplant. Full article
(This article belongs to the Special Issue Improving Nitrogen Use Efficiency in Model and Crop Plants: From Lab to Field)
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