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Agronomy
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Effect of Nutrient Deficiencies on Stress Tolerance of Plants and...
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Effect of Nutrient Deficiencies on Stress Tolerance of Plants and Its Mechanism

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

Deadline for manuscript submissions: 25 May 2024 | Viewed by 2277

Special Issue Editor

Dr. Carlos Lucena

E-Mail Website
Guest Editor
Departamento de Agronomía, Universidad de Córdoba, Córdoba, Spain
Interests: regulation of physiological and morphological responses to nutrient deficiencies; molecular mechanisms of stress responses; interactions between hormones and other signals; the role of beneficial rhizosphere microbes on mineral acquisition
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

To cope with nutrient scarcity, plants generally follow two main complementary strategies. On the one hand, they can slow down growth, mainly shoot growth, to diminish the demand of nutrients. It is known that the TOR (Target Of Rapamycin) system is a central regulator of growth in response to nutrients in eukaryotic cells. On the other hand, plants can develop different physiological and morphological responses, mainly in their roots, aimed to facilitate the acquisition of nutrients. It is known that the plant hormone ethylene participates in the activation of many nutrient deficiency responses.
Both strategies are compatible and can function simultaneously, but the interconnection between them is not yet well known.
Papers submitted to this Special Issue must report new results and the latest findings related to the interconnection between both strategies. We particularly welcome manuscripts dealing with the following topics:

  • New advances and methods for the determination of both the “stop growing” and “searching for nutrients” strategies aimed at achieving greater stress tolerance of plants.
  • New research shedding light on the relationship of ethylene with the TOR system related to the control of plant growth and development of nutrient deficiency responses.

All forms of submissions (i.e., original research papers, mini reviews, methods, perspectives, hypotheses and theories, and opinion articles) are welcome. 

Dr. Carlos Lucena
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. 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 deficiency
  • ethylene
  • TOR
  • regulation
  • stress tolerance
  • stop growing
  • searching for nutrients
  • morphological responses
  • physiological responses

Published Papers (2 papers)

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Research

17 pages, 1723 KiB  
Article
Boron Nutrition in Coffee Improves Drought Stress Resistance and, Together with Calcium, Improves Long-Term Productivity and Seed Composition
by Victor Hugo Ramirez-Builes, Jürgen Küsters, Ellen Thiele and Luis Alfredo Leal-Varon
Agronomy 2024, 14(3), 474; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy14030474 - 27 Feb 2024
Viewed by 999
Abstract
Coffee production around the world is under threat due to climate variability and change, and drought stress will increase in many coffee regions; nutrient management practices can enhance the adaptation capacity of coffee production. Considering that coffee is a crop sensitive to boron [...] Read more.
Coffee production around the world is under threat due to climate variability and change, and drought stress will increase in many coffee regions; nutrient management practices can enhance the adaptation capacity of coffee production. Considering that coffee is a crop sensitive to boron (B) deficiency, this research investigated how B nutrition improves resistance to drought stress in coffee under controlled conditions as well as how the interaction with calcium (Ca2+) influences productivity, seed composition, and soil fertility during a production cycle of 5 years. Under controlled conditions for seven months, coffee plants were submitted to water stress with and without B nutrition. In the field, the coffee plantation was exposed to two B rates (0.6 and 1.1 kg.ha−1-year−1) with a fixed calcium (Ca2+) rate and a control without Ca2+ and B. After 9 months of growth and seven months of water deficit, under controlled conditions, the application of B significantly (p < 0.05) reduced the negative effect of water stress on coffee growth. Under field conditions, after a production cycle of 5 years, the application of 0.6 kg B and 77 kg CaO. ha−1.year−1 yielded 14% more than the control without B and Ca2+. An increase in the B rate to 1.1 kg.ha−1.year−1 with the same Ca2+ rate increased the productivity significantly (p < 0.05) by 37% compared to the control. The B application also improved significantly (p < 0.05) the B content in the soil at 0–30 cm. The B treatments influenced the biochemical composition of the green coffee beans, with a significant (p < 0.05) inverse correlation between the B content of the green coffee beans and caffeine and unsaturated fatty acids (UFAs), mainly, oleic, linoleic, and linolenic acids, which are considered negative descriptors of the coffee quality. Full article
(This article belongs to the Special Issue Effect of Nutrient Deficiencies on Stress Tolerance of Plants and Its Mechanism)
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16 pages, 3157 KiB  
Article
Function of Soybean miR159 Family Members in Plant Responses to Low Phosphorus, High Salinity, and Abscisic Acid Treatment
by Bodi Li, Ping Tao, Feng Xu, Pingan He and Jinxiang Wang
Agronomy 2023, 13(7), 1798; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy13071798 - 05 Jul 2023
Cited by 1 | Viewed by 961
Abstract
MicroRNAs (miRNAs) regulate plant growth and development and plant responses to biotic and abiotic stresses. Although extensive studies show that miR159 family members regulate leaf and flower development in Arabidopsis thaliana, the roles of miRNAs in soybean (Glycine max) are [...] Read more.
MicroRNAs (miRNAs) regulate plant growth and development and plant responses to biotic and abiotic stresses. Although extensive studies show that miR159 family members regulate leaf and flower development in Arabidopsis thaliana, the roles of miRNAs in soybean (Glycine max) are poorly understood. Here, we identified six MIR159 genes in soybean, MIR159a–MIR159f, and investigate their expression patterns in plants under low-phosphorus (low-P), NaCl, or abscisic acid (ABA) treatments. In soybean leaves, MIR159e and MIR159f expression was induced by low-P treatment, while in roots, MIR159b, MIR159c, MIR159e, and MIR159f expression was upregulated. In flowers, low-P led to upregulation of MIR159a, MIR159b, MIR159c, and MIR159f but downregulation of MIR159d and MIR159e. In soybean nodules, MIR159b was upregulated but MIR159a, MIR159c, and MIR159d was downregulated under P deficiency. NaCl treatment induced MIR159a, MIR159b, MIR159c, and MIR159e expression in leaves and MIR159a–MIR159f expression in roots. ABA treatment upregulated MIR159a, MIR159b, and MIR159c but downregulated MIR159d, MIR159e, and MIR159f in leaves. These results suggest that miR159 family members function in plant abiotic stress responses. Moreover, total P content in leaves was significantly lower in plants overexpressing MIR159e than in the wild type, suggesting that miR159e may regulate P absorption and transport in soybean plants. Full article
(This article belongs to the Special Issue Effect of Nutrient Deficiencies on Stress Tolerance of Plants and Its Mechanism)
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