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Agronomy
Special Issues
Plant Responses to Combined and Overlapping Abiotic Stress Conditions
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Plant Responses to Combined and Overlapping Abiotic Stress Conditions

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (1 July 2021) | Viewed by 12769

Special Issue Editor

Dr. Tahmina Islam

E-Mail Website
Guest Editor
Plant Breeding and Biotechnology Laboratory, Department of Botany, University of Dhaka, Dhaka, Bangladesh
Interests: plant molecular biology; plant stress biology; crop improvement; plant phenotyping; genome editing and biosafety

Special Issue Information

Dear Colleagues,

The adverse effects of numerous abiotic stressors on plant growth and productivity have been long known within the scientific community. This has led to a rapid increase in research that focuses on unravelling the impact of such environmental perturbations on a plant on a molecular level. However, most of these studies revolve around the effects of single stressors on plant physiology and development. This of course does not fully represent the natural scenario plants face in their daily lives, where they often have to deal with multiple and overlapping environmental adversities. If we are to truly succeed in engineering plant resilience to a multitude of abiotic stressors, molecular mechanisms underlying the perception, signalling, and integration of such stress combination must be deciphered in a much greater resolution.

In this special issue entitled “Plant responses to combined and overlapping abiotic stress conditions” we will try to highlight novel research, reviews, and opinion papers that emphasize on elucidating how plants survive and acclimatize to natural conditions coupled with stress combinations. Through this, we hope to further capture the complexity of these interactions and broaden the scope of breeding programmes to utilize these newfound pieces of information to develop multiple stress-resilient plants.

Dr. Tahmina Islam
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

  • abiotic stress
  • environment-genotype interaction
  • plasticity and adaptation
  • molecular signalling
  • stress-tolerant genotype
  • breeding for stress tolerance
  • genetic engineering

Published Papers (3 papers)

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Research

Jump to: Review

9 pages, 288 KiB  
Article
Effects of Genotype and Climatic Conditions on the Oil Content and Its Fatty Acids Composition of Carthamus tinctorius L. Seeds
by Kamel Zemour, Ahmed Adda, Amina Labdelli, Abdelkader Dellal, Muriel Cerny and Othmane Merah
Agronomy 2021, 11(10), 2048; https://doi.org/10.3390/agronomy11102048 - 12 Oct 2021
Cited by 18 | Viewed by 2144
Abstract
Safflower seeds provide an oil rich in mono and polyunsaturated fatty acids. Its adaptation to drought and high temperatures makes it an alternative for the development of oleaginous crops in semi-arid areas. This study examines the oil content and the chemical composition of [...] Read more.
Safflower seeds provide an oil rich in mono and polyunsaturated fatty acids. Its adaptation to drought and high temperatures makes it an alternative for the development of oleaginous crops in semi-arid areas. This study examines the oil content and the chemical composition of seed oil from three safflower accessions (Gila, Halab, Touggourt) cultivated over three years (2015, 2016 and 2017) in a semi-arid area in Tiaret (West of Algeria). Under these semi-arid conditions, characterized by low rainfall and high temperatures, seed oil content remained relatively high and was composed mainly of unsaturated fatty acids, with their ratio to saturated fatty acids reaching an average value of 9. Seed oil content varies between 22.8% and 28.4% among the genotypes and throughout the three years. The extracted oil consists essentially of unsaturated fatty acids, linoleic and oleic acids, poly and monounsaturated, respectively. Their contents over the three years vary between 75% and 79.3% for linoleic acid and between 10.2% and 14.7% for oleic acid. The saturated fatty acids content of the oil reached a maximum value of 9%. They consist mainly of palmitic acid, of which the average genotypic content varies between 6.6% and 7.15% depending on all grown years. The results obtained may assist in better understanding the response of cultivars under rainfed conditions and could be helpful for breeders with regards to introduction into selection programs. Full article
(This article belongs to the Special Issue Plant Responses to Combined and Overlapping Abiotic Stress Conditions)
11 pages, 2408 KiB  
Article
Strategic Identification of New Genetic Diversity to Expand Lentil (Lens culinaris Medik.) Production (Using Nepal as an Example)
by Sandesh Neupane, Rajeev Dhakal, Derek M. Wright, Deny K. Shrestha, Bishnu Dhakal and Kirstin E. Bett
Agronomy 2021, 11(10), 1933; https://doi.org/10.3390/agronomy11101933 - 27 Sep 2021
Cited by 1 | Viewed by 2928
Abstract
Although lentil has a long history of cultivation, cultivars rely on a narrow genetic base, indicating room for broadening the diversity. Two field experiments were conducted at Bardiya, Nepal, during winter 2016 and 2017, with 324 diverse lentil genotypes obtained from genebanks and [...] Read more.
Although lentil has a long history of cultivation, cultivars rely on a narrow genetic base, indicating room for broadening the diversity. Two field experiments were conducted at Bardiya, Nepal, during winter 2016 and 2017, with 324 diverse lentil genotypes obtained from genebanks and breeding programs around the world. Phenological traits related to adaptation, particularly days to flower, were assessed. A photothermal model was used to predict days to flower in new environments to identify genotypes that may be suitable for additional growing regions in Nepal, allowing for the expansion of the production area. Many putatively adapted genotypes were identified for terai, mid-hill, and high-hill growing regions. The list includes large-seeded or yellow cotyledon lines, representing new market classes of lentils for Nepal. Full article
(This article belongs to the Special Issue Plant Responses to Combined and Overlapping Abiotic Stress Conditions)
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Review

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20 pages, 1040 KiB  
Review
Improving Drought Tolerance in Mungbean (Vigna radiata L. Wilczek): Morpho-Physiological, Biochemical and Molecular Perspectives
by Chandra Mohan Singh, Poornima Singh, Chandrakant Tiwari, Shalini Purwar, Mukul Kumar, Aditya Pratap, Smita Singh, Vishal Chugh and Awdhesh Kumar Mishra
Agronomy 2021, 11(8), 1534; https://doi.org/10.3390/agronomy11081534 - 30 Jul 2021
Cited by 21 | Viewed by 6750
Abstract
Drought stress is considered a severe threat to crop production. It adversely affects the morpho-physiological, biochemical and molecular functions of the plants, especially in short duration crops like mungbean. In the past few decades, significant progress has been made towards enhancing climate resilience [...] Read more.
Drought stress is considered a severe threat to crop production. It adversely affects the morpho-physiological, biochemical and molecular functions of the plants, especially in short duration crops like mungbean. In the past few decades, significant progress has been made towards enhancing climate resilience in legumes through classical and next-generation breeding coupled with omics approaches. Various defence mechanisms have been reported as key players in crop adaptation to drought stress. Many researchers have identified potential donors, QTLs/genes and candidate genes associated to drought tolerance-related traits. However, cloning and exploitation of these loci/gene(s) in breeding programmes are still limited. To bridge the gap between theoretical research and practical breeding, we need to reveal the omics-assisted genetic variations associated with drought tolerance in mungbean to tackle this stress. Furthermore, the use of wild relatives in breeding programmes for drought tolerance is also limited and needs to be focused. Even after six years of decoding the whole genome sequence of mungbean, the genome-wide characterization and expression of various gene families and transcriptional factors are still lacking. Due to the complex nature of drought tolerance, it also requires integrating high throughput multi-omics approaches to increase breeding efficiency and genomic selection for rapid genetic gains to develop drought-tolerant mungbean cultivars. This review highlights the impact of drought stress on mungbean and mitigation strategies for breeding high-yielding drought-tolerant mungbean varieties through classical and modern omics technologies. Full article
(This article belongs to the Special Issue Plant Responses to Combined and Overlapping Abiotic Stress Conditions)
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