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Agriculture
Special Issues
Crop Responses to Abiotic Stress and Genetic Research
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Crop Responses to Abiotic Stress and Genetic Research

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Production".

Deadline for manuscript submissions: closed (25 January 2024) | Viewed by 2906

Special Issue Editor

Dr. Rita Armoniené

E-Mail Website
Guest Editor
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344 Kėdainiai District Municipality, Lithuania
Interests: abiotic stress; freezing tolerance; crop physiology; sensor-based plant phenotyping; plant adaptability; crop pre-breeding

Special Issue Information

Dear Colleagues,

Due to climate change, various abiotic stresses, including heat, drought, cold stress, nutritional deficiencies, and chemical toxicity, have become a major challenge for crop productivity.

Through millennia-long evolution, plants have developed adaptability strategies that enable them to respond to various environmental signals by adjusting or manipulating genetic regulatory mechanisms, which allow them to cope with unfavourable conditions. Therefore, a deeper understanding of the genetic mechanisms and gene networks underlying plant stress response could be of great significance for the breeding of climate-resilient crops.

This Special Issue, entitled “Crop Responses to Abiotic Stress and Genetic Research”, will focus on the genetic regulation of plant responses to extreme heat and cold temperatures, drought, salinity, nutrient limitations, and ultraviolet stress, and on the epigenetic mechanisms of stress memory. This Special Issue will highlight the role of genetic variation in the adaption of crops to abiotic stress and its possible applications in breeding climate-resilient crop varieties. We welcome the submission of all types of articles, such as original research and review papers.

Dr. Rita Armoniené
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. Agriculture 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

  • abiotic stress
  • adaptation
  • breeding
  • climate resilience
  • DNA methylation
  • epigenetic variation
  • histone modification
  • small RNA

Published Papers (2 papers)

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Research

20 pages, 3499 KiB  
Article
Root Architectural Adaptations to Phosphorus Deficiency: Unraveling Genotypic Variability in Wheat Seedlings
by Vijay Rajamanickam, Kunnummal Kurungara Vinod, Krishnapriya Vengavasi, Tarun Kumar, Viswanathan Chinnusamy and Renu Pandey
Agriculture 2024, 14(3), 447; https://doi.org/10.3390/agriculture14030447 - 10 Mar 2024
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Abstract
Understanding the changes in the root system architecture of bread wheat under phosphorus (P)-limited conditions is critical for identifying specific traits contributing to improved P uptake. Phenotypic variability in root, biomass, and P index-related traits among 204 diverse wheat genotypes at the seedling [...] Read more.
Understanding the changes in the root system architecture of bread wheat under phosphorus (P)-limited conditions is critical for identifying specific traits contributing to improved P uptake. Phenotypic variability in root, biomass, and P index-related traits among 204 diverse wheat genotypes at the seedling stage was examined under low and optimum P treatments. Strong genotypic and phenotypic associations between P utilization efficiency (PUtE) and total root volume, dry weight of root and shoot, total P uptake, and total plant biomass were observed under optimum P. Under low P, strong positive correlations between PUtE and total root length, total root volume, total surface area, and total biomass were observed, while it was negatively correlated with average diameter. These traits exhibited medium to high heritability. Under low P, average root diameter, primary root length, root mass ratio, total root tips, and surface area showed high Shannon–Weaver diversity index (H’) values (>0.79). The agglomerative hierarchical clustering analysis grouped the genotypes into four distinct clusters. The best performing genotypes in Clusters I and II indicated their strong relationship with P use efficiency due to higher percent increases in total root length, total surface area, total root volume, total root tips, total biomass, P efficiency ratio, specific root length, and PUtE under low P as compared to optimum P conditions. The present study identified specific root system architectural traits and P use-efficient genotypes (SHANGHAI, Pavon F76, BWL 5233, SONALIKA, KHARCHIA LOCAL, WH 102, BWL 4425, HD 2888.2, CBW 12, MN75136/PGO, KRL 19, and WH 1022) associated with efficient P uptake and utilization. These identified genotypes and traits may be useful in wheat breeding programs to develop P-efficient varieties with better adaptations for sustainable agriculture. Full article
(This article belongs to the Special Issue Crop Responses to Abiotic Stress and Genetic Research)
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12 pages, 1483 KiB  
Article
Effects of Acetaminophen Contamination on 5-Methylcytosine Content in Zea mays and Plant Physiological Parameters
by Jiří Kudrna, Marek Popov, František Hnilička, Marie Lhotská, Veronika Zemanová, Pavla Vachová, Jan Kubeš, Jana Česká and Barbora Tunklová
Agriculture 2023, 13(7), 1333; https://doi.org/10.3390/agriculture13071333 - 29 Jun 2023
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Abstract
Zea mays L. plants were exposed to acetaminophen (APAP). Experiments were conducted in an experimental greenhouse with semi-controlled conditions. Experimental plants were grown in concentrations of APAP of 0, 200, 400, 600, 800, and 1000 mg L−1 for 14 days in an [...] Read more.
Zea mays L. plants were exposed to acetaminophen (APAP). Experiments were conducted in an experimental greenhouse with semi-controlled conditions. Experimental plants were grown in concentrations of APAP of 0, 200, 400, 600, 800, and 1000 mg L−1 for 14 days in an NFT hydroponic system. The impact of APAP contamination was observed on photosynthetic rate, water potential, proline content, and levels of 5-methylcytosine (5 mC%). The results showed that the selected parameters were influenced by different concentrations of APAP. High concentrations of APAP caused a decrease in transpiration rate, stomatal conductance, and water use efficiency. The water potential between the control and highest APAP concentration value increased by 388%. An upward trend of 5 mC% levels was observed, growing with APAP contamination. A 51% growth of 5 mC% was found between the control variant and the highest 1000 mg L−1 APAP contaminated variant. In most of the observed parameters, between 600 mg L−1 and 800 mg L−1 of APAP treatments, a turning point was shown with a noticeable increase in the stress in experimental plants according to the changes in the monitored parameters. Full article
(This article belongs to the Special Issue Crop Responses to Abiotic Stress and Genetic Research)
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