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Life
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Phytohormones and Stress Response in Plants
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Phytohormones and Stress Response in Plants

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Plant Science".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 7263

Special Issue Editors

Prof. Dr. Hui Chen

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Guest Editor
College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
Interests: tartary buckwheat; secondary metabolism
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Qi Wu

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Guest Editor
College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
Interests: stress resistance mechanism; secondary metabolic regulation; tartary buckwheat
Dr. Moyang Liu

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Guest Editor
School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: system biology; functional evolution
Special Issues, Collections and Topics in MDPI journals
Dr. Sinan Li

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Guest Editor
Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
Interests: molecular biology; abiotic stress; miscellaneous grain quality

Special Issue Information

Dear Colleagues,

An important issue facing plants as sessile organisms is the ability to respond rapidly to environmental changes, including abiotic stresses such as salinity, drought, temperature, irradiance, heavy metals, and biotic stresses such as bacteria, fungi, viruses, nematodes, and insects. Plants have established multiple strategies to cope with these individual/combined adverse effects, in which the complex network of phytohormones signals and their crosstalk capabilities play a key role in helping plants adapt to adverse environmental conditions. This special issue welcomes manuscripts dealing with the fundamental science and future perspectives of phytohormones research. In particular, we welcome research that focuses on the following areas.

  • Phytohormones-mediated novel response stress mechanisms in highly resistant species
  • Large-scale multi-omics analysis related to stress adaptation
  • Phytohormones signal regulation network based on artificial intelligence technology
  • Phytohormones regulation under stress

This special issue aims to decipher the complex mechanisms of a large number of phytohormones signaling pathway interactions in response to different stresses based on molecular biology, genetics, systems biology, and other approaches to ultimately advance the field.

Prof. Dr. Hui Chen
Prof. Dr. Qi Wu
Dr. Moyang Liu
Dr. Sinan Li
Guest Editors

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. Life 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

  • phytohormones
  • abiotic stress
  • biotic stress
  • artificial intelligence
  • crosstalk
  • hormone interaction
  • plant stress tolerance

Published Papers (4 papers)

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Research

13 pages, 4514 KiB  
Article
ABA and SA Participate in the Regulation of Terpenoid Metabolic Flux Induced by Low-Temperature within Conyza blinii
by Ming Yang, Maojia Wang, Ming Zhou, Yifu Zhang, Keliang Yu, Tao Wang, Tongliang Bu, Zizhong Tang, Tianrun Zheng and Hui Chen
Life 2023, 13(2), 371; https://doi.org/10.3390/life13020371 - 29 Jan 2023
Cited by 2 | Viewed by 1444
Abstract
Under dry-hot valley climates, Conyza blinii (also known as Jin Long Dan Cao), suffers from nocturnal low-temperature stress (LTS) during winter. Here, to investigate the biological significance of terpenoid metabolism during LTS adaptation, the growth state and terpenoid content of C. blinii under [...] Read more.
Under dry-hot valley climates, Conyza blinii (also known as Jin Long Dan Cao), suffers from nocturnal low-temperature stress (LTS) during winter. Here, to investigate the biological significance of terpenoid metabolism during LTS adaptation, the growth state and terpenoid content of C. blinii under different LTS were detected, and analyzed with the changes in phytohormone. When subjected to LTS, the results demonstrated that the growth activity of C. blinii was severely suppressed, while the metabolism activity was smoothly stimulated. Meanwhile, the fluctuation in phytohormone content exhibited three different physiological stages, which are considered the stress response, signal amplification, and stress adaptation. Furthermore, drastic changes occurred in the distribution and accumulation of terpenoids, such as blinin (diterpenoids from MEP) accumulating specifically in leaves and oleanolic acid (triterpenoids from MVA) accumulating evenly and globally. The gene expression of MEP and MVA signal transduction pathways also changes under LTS. In addition, a pharmacological study showed that it may be the ABA-SA crosstalk driven by the LTS signal, that balances the metabolic flux in the MVA and MEP pathways in an individual manner. In summary, this study reveals the different standpoints of ABA and SA, and provides a research foundation for the optimization of the regulation of terpenoid metabolic flux within C. blinii. Full article
(This article belongs to the Special Issue Phytohormones and Stress Response in Plants)
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13 pages, 3796 KiB  
Article
Analysis of the C2H2 Gene Family in Maize (Zea mays L.) under Cold Stress: Identification and Expression
by Sinan Li, Yunlong Li, Quan Cai, Xin Li, Yan Sun, Tao Yu, Jianfei Yang and Jianguo Zhang
Life 2023, 13(1), 122; https://doi.org/10.3390/life13010122 - 31 Dec 2022
Cited by 4 | Viewed by 1804
Abstract
The C2H2 zinc finger protein is one of the most common zinc finger proteins, widely exists in eukaryotes, and plays an important role in plant growth and development, as well as in salt, low-temperature, and drought stress and other abiotic stress responses. In [...] Read more.
The C2H2 zinc finger protein is one of the most common zinc finger proteins, widely exists in eukaryotes, and plays an important role in plant growth and development, as well as in salt, low-temperature, and drought stress and other abiotic stress responses. In this study, C2H2 members were identified and analyzed from the low-temperature tolerant transcriptome sequencing data of maize seedlings. The chromosome position, physical and chemical properties, evolution analysis, gene structure, conservative motifs, promoter cis elements and collinearity relationships of gene the family members were analyzed using bioinformatics, and the expression of the ZmC2H2 gene family under cold stress was analyzed by fluorescent quantitative PCR. The results showed that 150 members of the C2H2 zinc finger protein family were identified, and their protein lengths ranged from 102 to 1223 bp. The maximum molecular weight of the ZmC2H2s was 135,196.34, and the minimum was 10,823.86. The isoelectric point of the ZmC2H2s was between 33.21 and 94.1, and the aliphatic index was 42.07–87.62. The promoter cis element analysis showed that the ZmC2H2 family contains many light-response elements, plant hormone-response elements, and stress-response elements. The analysis of the transcriptome data showed that most of the ZmC2H2 genes responded to cold stress, and most of the ZmC2H2 genes were highly expressed in cold-tolerant materials and lowly expressed in cold-sensitive materials. The real-time quantitative PCR (qRT-PCR) analysis showed that ZmC2H2-69, ZmC2H2-130, and ZmC2H2-76 were significantly upregulated, and that ZmC2H2-149, ZmC2H2-33, and ZmC2H2-38 were significantly downregulated. It is hypothesized that these genes, which function in different metabolic pathways, may play a key role in the maize cold response. These genes could be further studied as candidate genes. This study provides a theoretical reference for further study on the function analysis of the maize C2H2 gene family. Full article
(This article belongs to the Special Issue Phytohormones and Stress Response in Plants)
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15 pages, 5303 KiB  
Article
RNA-Seq Analysis Demonstrates Different Strategies Employed by Tiger Nuts (Cyperus esculentus L.) in Response to Drought Stress
by Zhongsheng Mu, Zunmiao Wei, Jiayao Liu, Yan Cheng, Yu Song, Hongbing Yao, Xiankai Yuan, Shukun Wang, Yanhua Gu, Jingwen Zhong, Kexin Liu, Caihua Li, Jidao Du and Qi Zhang
Life 2022, 12(7), 1051; https://doi.org/10.3390/life12071051 - 14 Jul 2022
Cited by 4 | Viewed by 1857
Abstract
Drought stress, an important abiotic stress, has affected global agricultural production by limiting the yield and the quality of crops. Tiger nuts (Cyperus esculentus L.) are C4 crops in the Cyperaceae family, which have high-quality wholesome ingredients. However, data on mechanisms underlying [...] Read more.
Drought stress, an important abiotic stress, has affected global agricultural production by limiting the yield and the quality of crops. Tiger nuts (Cyperus esculentus L.) are C4 crops in the Cyperaceae family, which have high-quality wholesome ingredients. However, data on mechanisms underlying the response of tiger nuts to drought stress are few. Here, the variety of Jisha 1 and 15% polyethylene glycol (PEG; a drought stress simulator) were used to study the mechanisms of stress response in tiger nuts. Our evaluation of the changes in physiological indicators such as electrolyte leakage (El), malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide anion (O2−) and activities of reactive oxygen species (ROS) showed that 12 h was the most suitable time point to harvest and analyze the response to drought stress. Thereafter, we performed transcriptome (RNA-Seq) analysis in the control (CK) and stress treatment groups and showed that there was a total of 1760 differentially expressed genes (DEGs). Gene Ontology (GO) analysis showed that the DEGs were enriched in abscisic acid (ABA) terms, and pathways such as starch and sucrose metabolism (ko00500), phenylpropanoid biosynthesis (ko00940) and plant hormone signal transduction (ko04075) were significantly enriched in the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. In addition, quantitative real-time PCR (qRT-PCR) analysis of the DEGs demonstrated an upregulation of ABA and lignin content, as well as enzyme activities in enriched pathways, which validated the RNA-Seq data. These results revealed the pathways and mechanisms adopted by the tiger nuts in response to drought stress. Full article
(This article belongs to the Special Issue Phytohormones and Stress Response in Plants)
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14 pages, 2763 KiB  
Article
Identification and Expression Analysis of bZIP Members under Abiotic Stress in Mung Bean (Vigna radiata)
by Wenhui Zhang, Shijia Ye, Yanli Du, Qiang Zhao, Jidao Du and Qi Zhang
Life 2022, 12(7), 938; https://doi.org/10.3390/life12070938 - 22 Jun 2022
Cited by 5 | Viewed by 1533
Abstract
The main aim of this study was to identify the bZIP family members in mung bean and explore their expression patterns under several abiotic stresses, with the overarching goal of elucidating their biological functions. Results identified 75 bZIP members in mung bean, which [...] Read more.
The main aim of this study was to identify the bZIP family members in mung bean and explore their expression patterns under several abiotic stresses, with the overarching goal of elucidating their biological functions. Results identified 75 bZIP members in mung bean, which were unevenly distributed in the chromosomes (1–11), and all had a highly conserved bZIP domain. Phylogenetic analysis divided the members into 10 subgroups, with members in the same subgroup having similar structure and motif. The cis-acting elements in the promoter region revealed that most of the bZIP members might have the connection with abscisic acid, ethylene, and stress responsive elements. The transcriptome data demonstrated that bZIP members could respond to salt stress at different degrees in leaves, but the expression patterns could vary at different time points under stress. Differentially expressed genes (DEGs), such as VrbZIP12, VrbZIP37, and VrZIP45, were annotated into the plant hormone signal transduction pathway, which might be regulated the expression of abiotic stress-related gene (ABF). Quantitative real-time polymerase chain reaction (qRT-PCR) was applied to determine the expression of bZIP members in roots and leaves under drought, alkali, and low-temperature stress. Results showed that bZIP members respond differently to diverse stresses, and their expression was tissue-specific, which suggests that they may have different regulatory mechanism in different tissues. Overall, this study will provide a reference for further research on the functions of bZIP members in mung bean. Full article
(This article belongs to the Special Issue Phytohormones and Stress Response in Plants)
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