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Agronomy
Special Issues
Improving Nutrient Use Efficiency: From Lab to the Field
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Improving Nutrient Use Efficiency: From Lab to the Field

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 3856

Special Issue Editors

Dr. Zhi-Liang Zheng

E-Mail Website
Guest Editor
Department of Biological Sciences, Lehman College, City University of New York, Bronx 10458, NY, USA
Interests: nutrient sensing and cell signaling networks
Dr. Thomas Leustek

E-Mail Website
Guest Editor
Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
Interests: intermediary metabolism; sulfur metabolism; mineral nutrition; nutrient sensing; metabolic engineering

Special Issue Information

Dear Colleagues,

Plant-based agricultural production has been a key contributor to global food security. Macro- and micronutrients are essential to support optimal plant growth and development used for yield formation. However, the cost, effectiveness, and negative consequences of fertilizer applications demand a better understanding of nutrient use efficiency (NEU). Decades of fundamental research using model organisms such as Arabidopsis and rice have led to exciting breakthroughs, which make the translation of the research findings into NEU improvement in field crops possible. In this Special Issue, we aim to bridge the gap between laboratory findings and field improvement by highlighting the progress in mechanistic studies of nutrient sensing/response and utilization and discussing the tools to maximize crop NEU. We invite submissions from broad topics, including but not limited to 1) nutrient sensing, transport, storage, and assimilation; 2) molecular mechanisms underlying the cultural practices for yield improvement or regulating the balance between plant growth and crop yield; and 3) potentials and challenges of using biotechnological means to improve NEU and crop productivity.

Dr. Zhi-Liang Zheng
Dr. Thomas Leustek
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. Agronomy is an international peer-reviewed open access monthly 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 2600 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

  • nutrient use efficiency
  • nutrient sensing and signaling
  • biotechnology

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Published Papers (2 papers)

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Research

16 pages, 3166 KiB  
Article
Multi-Omics Analysis Reveals the Regulatory and Metabolic Mechanisms Underlying Low-Nitrogen Tolerance at the Flowering Stage in Rice
by Yanru Wang, Jing Jiang, Yukang Qian, Siyu Miao, Wensheng Wang, Jianlong Xu, Binying Fu, Fan Zhang and Xiuqin Zhao
Agronomy 2023, 13(2), 578; https://doi.org/10.3390/agronomy13020578 - 17 Feb 2023
Cited by 3 | Viewed by 1508
Abstract
Crop productivity depends on nitrogen fertilization, but plants take up only an average of 30–50% of the applied nitrogen. Developing rice cultivars with improved nitrogen use efficiency or low-nitrogen (LN) tolerance is critical for sustainable agriculture. In this study, a backcross introgression line [...] Read more.
Crop productivity depends on nitrogen fertilization, but plants take up only an average of 30–50% of the applied nitrogen. Developing rice cultivars with improved nitrogen use efficiency or low-nitrogen (LN) tolerance is critical for sustainable agriculture. In this study, a backcross introgression line (G9) with 15 introgressed regions from donor parent and its recurrent parent Shuhui 527 (G1), which are differentially responsive to LN stress, were used to investigate the mechanism mediating rice LN tolerance at the flowering stage based on metabolome and transcriptome profiles. Three genes (LOC_Os02g40010, LOC_Os11g25260 and LOC_Os11g47300) involved in purine metabolism, which are located in the introgressed regions, were detected with significantly higher expression levels in G9 than in G1 under LN stress, and the contents of two relative metabolites (uric acid and guanine) were significantly different between the two genotypes. Additionally, two genes (LOC_Os02g36880 and LOC_Os08g05830) located in the introgressed regions and relative metabolites (3-phosphoglyceric acid and sedoheptulose 7-phosphate) involved in glycosis and pentose phosphate pathway are differentially expressed between G9 and G1. In addition to the two nitrogen metabolism-related genes (OsLHT1 and OsACR9) located in the introgressed regions, 23 differentially expressed genes mainly involved in nitrogen metabolism were identified between genotypes or treatments. With the comprehensive analysis of transcriptomes and metabolomes, our results reveal that the active purine metabolism may be the main factor contributing to LN tolerance in rice at the flowering stage, and also provide five new candidate genes for improving LN tolerance during the molecular breeding of rice. Full article
(This article belongs to the Special Issue Improving Nutrient Use Efficiency: From Lab to the Field)
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19 pages, 2648 KiB  
Article
Contribution to Improving the Chickpea (Cicer arietinum L.) Efficiency in Low-Phosphorus Farming Systems: Assessment of the Relationships between the P and N Nutrition, Nodulation Capacity and Productivity Performance in P-Deficient Field Conditions
by Souad Insaf Djouider, Laurent Gentzbittel, Raghavendra Jana, Martina Rickauer, Cécile Ben and Mohamed Lazali
Agronomy 2022, 12(12), 3150; https://doi.org/10.3390/agronomy12123150 - 12 Dec 2022
Cited by 3 | Viewed by 1849
Abstract
Chickpea (Cicer arietinum L.), the third largest produced pulse worldwide, is primarily grown on marginal soils often characterized by a phosphorus (P)-deficiency that severely hampers yields. The objectives of the study are to investigate the relationships between the P-acquisition, P-use efficiency (PUE) [...] Read more.
Chickpea (Cicer arietinum L.), the third largest produced pulse worldwide, is primarily grown on marginal soils often characterized by a phosphorus (P)-deficiency that severely hampers yields. The objectives of the study are to investigate the relationships between the P-acquisition, P-use efficiency (PUE) and the agronomical performances towards the developing varieties tolerant to the P-deficiency. We evaluate the impact of the P-deficiency on the growth, yield, germination and nodulation performances of seven chickpea cultivars grown in fields with a low-P soil availability, during two seasons. The adaptive mechanisms to maintain the efficiency of the physiological processes, such as the nitrogen (N)-fixing nodule function, germinability, and possibly photosynthesis, are revealed. In contrast, the large genotypic variation in the yield components, in the P and N acquisition, and in the PUE is observed, supporting the role of the nodules in the P uptake in P-deficient soils. The P-acquisition and utilization efficiencies are genetically decoupled, suggesting designing distinct breeding strategies to promote one or both PUE components. As an outcome, we identify a set of chickpea cultivars adapted to a region with a soil P scarcity, that exhibit efficient N and P metabolism and a superior productivity. This germplasm can be used in breeding programs for low-P input efficient chickpeas. This contributes to the implementation of eco-friendly farming practices while making the most of marginal soils. Full article
(This article belongs to the Special Issue Improving Nutrient Use Efficiency: From Lab to the Field)
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