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Agronomy
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Ensuring Yield: Physiological and Biochemical Mechanisms of Crops against Environmental...
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Ensuring Yield: Physiological and Biochemical Mechanisms of Crops against Environmental Challenges

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 2448

Special Issue Editor

Dr. Vicente Arbona

E-Mail Website
Guest Editor
Departamento de Biología, Bioquímica i Ciències Naturals, Universitat Jaume I, Castelló de la Plana, Spain
Interests: abiotic stress; Arabidopsis; biochemistry; citrus; drought; flooding; metabolomics; plant physiology; tomato
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In natural environments, plants are continuously challenged by different and often multiple adverse environmental conditions, which affect plant performance, yield, yield quality and, ultimately, plant survival. However, plants have evolved physiological and biochemical mechanisms to cope with these adverse conditions that might be used as markers for the precocious selection of the best adapted cultivars and/or rootstock species. In this respect, it is important to define which markers better describe the tolerant or sensitive behavior of the plant species of interest.

This Special Issue will focus on the evaluation of physiological and biochemical parameters as valid markers for stress tolerance assessment of cultivars, rootstock genotypes or poorly explored crop species under single or multiple abiotic stress conditions. Manuscripts dealing with high-throughput omics technologies will be particularly welcome, constituting important tools for the evaluation of large genotype collections.

Research papers and review articles focused on high-throughput strategies for genotype evaluation, not necessarily based on omics technologies, will be considered within the scope of this Special Issue.

Dr. Vicente Arbona
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
  • biochemistry
  • chlorophyll fluorescence
  • gas exchange
  • high-throughput techniques
  • metabolomics
  • plant physiology

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Published Papers (1 paper)

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Research

21 pages, 12326 KiB  
Article
Putrescine Mitigates High Temperature Effects by Modulating Morpho-Physiological and Biochemical Attributes in Brassica juncea Seedlings
by Parul Sharma, Nita Lakra, Yogesh Ahlawat, Abbu Zaid, Ahmed M. Abd-ElGawad, Hosam O. Elansary and Anita Gupta
Agronomy 2023, 13(7), 1879; https://doi.org/10.3390/agronomy13071879 - 16 Jul 2023
Cited by 1 | Viewed by 1912
Abstract
A variety of environmental issues are affecting crops all across the world, but rising temperatures are posing the greatest threat. High temperature has been found to drastically inhibit seedling emergence and cause leaf necrosis at the seedling stage, which results in poor plant [...] Read more.
A variety of environmental issues are affecting crops all across the world, but rising temperatures are posing the greatest threat. High temperature has been found to drastically inhibit seedling emergence and cause leaf necrosis at the seedling stage, which results in poor plant stand and significantly decreased yields. Polyamines (PAs) are positively charged, low-molecular-weight aliphatic nitrogenous bases present in all living organisms and are involved in various biological processes in plant growth and development, including senescence and response to different abiotic stresses. Putrescine (Put) functions as a master growth regulator that promotes optimal plant development and greater stress tolerance. Here, the current study aimed to elucidate how Put (1 mM) functions in reducing the negative impacts of high temperature on four varieties of Brassica juncea (RH-1707, RH-1708, RH-1566 and RH-1999-42). Exposure of plants to high temperature resulted in decrease in growth parameters, chlorophyll content and relative water content. Simultaneously, increases were found in antioxidant enzymes, electrolyte leakage, lipid peroxidation, hydrogen peroxide content and stomatal density. High temperature more significantly affected varieties RH-1707 and RH-1708, while RH-1566 and RH-1999-42 showed lesser effects. Exogenous application of Put mitigated the negative impacts of high temperature by enhancing growth, chlorophyll content, relative water content and antioxidant enzyme activities and, simultaneously, it reduces oxidative damage and stomatal density. This study specifies that varieties RH-1707 and RH-1708 are sensitive whereas RH-1566 and RH-1999-42 are tolerant of high temperature and provides an insight into the effectiveness of Put in mitigating the effects of high temperature to a significant extent in B. juncea seedlings. Full article
(This article belongs to the Special Issue Ensuring Yield: Physiological and Biochemical Mechanisms of Crops against Environmental Challenges)
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