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Genetic Mechanism of Plant Responses to Environmental Stresses
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Genetic Mechanism of Plant Responses to Environmental Stresses

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 5384

Special Issue Editor

Prof. Dr. Yin'an Yao

E-Mail Website
Guest Editor
School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
Interests: poplar; Solanaceae; tomato; trees; environmental stress; biology

Special Issue Information

Dear Colleagues,

As sessile organisms, plants must cope with different environmental stresses in their life span, including drought, flooded condition, hypoxia, salt, heavy metal, metalloid, nutrition deficiency, ultraviolet radiation, high light, high or low temperature, as well as the interaction or combination of different stresses. In the last two decades, great progress have been made regarding the genetic mechanisms of plant responses to environmental stresses, involved in the different aspects like stress sensing and signaling, transcription regulation and processing, as well as translation and post-translational protein modifications. This has enabled research on more genetic engineering strategies and methods to increase plant resilience to environmental stress.

In this Special Issue, we would like to invite submissions of high-quality original research or review articles on topics related to genetic and genomic studies of plant responses to various environmental stresses.

Prof. Dr. Yin'an Yao
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. Genes 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

  • plant adaptation strategies 
  • environmental stress 
  • drought stress 
  • desiccation 
  • hypoxia 
  • saline stress 
  • heavy metal 
  • metalloid stress 
  • nutrition deficiency 
  • high light 
  • ultraviolet radiation 
  • shade 
  • high temperature 
  • cold stress 
  • freezing 
  • genomics 
  • genome-wide association studies 
  • evolution

 

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Published Papers (2 papers)

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Research

16 pages, 3632 KiB  
Article
ROS Homeostasis Involved in Dose-Dependent Responses of Arabidopsis Seedlings to Copper Toxicity
by Jiehua Wang, Muhammad Moeen-ud-din, Rong Yin and Shaohui Yang
Genes 2023, 14(1), 11; https://doi.org/10.3390/genes14010011 - 21 Dec 2022
Cited by 9 | Viewed by 2912
Abstract
As an essential element in plant nutrition, copper (Cu) can promote or inhibit plant growth depending on its concentration. However, the dose-dependent effects of copper, particularly on DNA damage associated with reactive oxygen species (ROS) homeostasis, are much less understood. In this work, [...] Read more.
As an essential element in plant nutrition, copper (Cu) can promote or inhibit plant growth depending on its concentration. However, the dose-dependent effects of copper, particularly on DNA damage associated with reactive oxygen species (ROS) homeostasis, are much less understood. In this work, we analyzed the dual effect of Cu (5, 20, and 60 μM) on the reproductive performance of Arabidopsis plants. Whereas Cu5 promoted inflorescence initiation and increased kilo seed weight, two higher concentrations, Cu20 and Cu60, delayed inflorescence initiation and negatively affected silique size. Excess Cu also induced changes in cellular redox homeostasis, which was examined by in situ visualization and measurements of ROS, including superoxide (O2•−), hydrogen peroxide (H2O2), malonyldialdehyde (MDA), and plasma membrane damage. The most dramatic increases in the production of O2•− and H2O2 along with increased activity of superoxide dismutase (SOD) and glutathione peroxidase (GPX) and decreased activity of catalase (CAT) and ascorbate peroxidase (APX) were observed in roots with Cu60. Oxidative stress also modulated the expression levels of a number of genes involved in the DNA damage response (DDR), particularly those related to DNA repair. The Cu-induced chlorosis of Arabidopsis seedlings could be alleviated by exogenous addition of glutathione (GSH) and ascorbate (Asc), as the chlorophyll content was significantly increased. Overall, internal homeostasis ROS and the associated DDR pathway and the corresponding scavenging mechanisms play a central role in the response of Arabidopsis to oxidative stress induced by inhibitory Cu concentrations. Our results have shown, for the first time, that the biphasic responses of Arabidopsis seedlings to increasing Cu concentrations involve different DNA damage responses and oxidative reactions. They provide the basis for elucidating the network of Cu-induced DDR-related genes and the regulatory mechanism of the complex ROS production and scavenging system. Full article
(This article belongs to the Special Issue Genetic Mechanism of Plant Responses to Environmental Stresses)
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17 pages, 4884 KiB  
Article
A Comparative Transcriptomic with UPLC-Q-Exactive MS Reveals Differences in Gene Expression and Components of Iridoid Biosynthesis in Various Parts of Gentiana macrophylla
by Yuhang Kou, Xiaoying Yi, Zhuo Li, Yun Ai, Siting Ma and Qianliang Chen
Genes 2022, 13(12), 2372; https://doi.org/10.3390/genes13122372 - 15 Dec 2022
Cited by 8 | Viewed by 1988
Abstract
Gentiana macrophylla Pall. (G. macrophylla)—a member of the family Gentianaceae—is a well-known traditional Chinese medical herb. Iridoids are the main active components of G. macrophylla, which has a wide range of pharmacological activities such as dispelling wind, eliminating dampness, clearing [...] Read more.
Gentiana macrophylla Pall. (G. macrophylla)—a member of the family Gentianaceae—is a well-known traditional Chinese medical herb. Iridoids are the main active components of G. macrophylla, which has a wide range of pharmacological activities such as dispelling wind, eliminating dampness, clearing heat and asthenic fever, hepatoprotective and choleretic actions, and other medicinal effects. In this study, a total of 67,048 unigenes were obtained by transcriptomic sequencing analysis of G. macrophylla. A BLAST analysis showed that 48.21%, 33.66%, 46.32%, and 32.62% of unigenes were identified in the NR, Swiss-Prot, eggNOG, and KEGG databases, respectively. Twenty-five key enzymes were identified in the iridoid biosynthesis pathway. Most of the upregulated unigenes were enriched in flowers and leaves. The trustworthiness of the transcriptomic data was validated by real-time quantitative PCR (qRT-PCR). A total of 22 chemical constituents were identified by ultra-high performance liquid chromatography-quadrupole-electrostatic field Orbitrap mass spectrometry (UPLC-Q-Exactive MS), including 10 iridoids. A correlation analysis showed that the expression of 7-DLH and SLS was closely related to iridoids. The expression of 7-DLH and SLS was higher in flowers, indicating that flowers are important for iridoid biosynthesis in G. macrophylla. Full article
(This article belongs to the Special Issue Genetic Mechanism of Plant Responses to Environmental Stresses)
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