Ethylene Signaling in Plants

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4628

Special Issue Editor


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Guest Editor
National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
Interests: ethylene signaling; translation

Special Issue Information

Dear Colleagues,

In response to internal and external stimuli, signaling of the gaseous plant hormone ethylene integrates with other signaling networks and regulates a wide range of biological processes throughout plant growth and development. Ethylene signaling has been investigated for more than three decades, primarily on the model plant Arabidopsis. Throughout the course of study, along with new findings, hypothetical models have been proposed and revised. The present model sufficiently explains the underlying mechanism of ethylene signaling under the defined genetic framework. It appears that ethylene signaling is clear and needs no further investigations. On the other hand, a model at any stage, in a sense, is hypothetical, testing the limit and validity of a hypothesis, and, in the meantime, restricts the exploration into other territories or possibilities that do not fit into the defined framework. When epistatic alleles are too often inferred as a downstream component, the underlying complexity of molecular mechanisms may be neglected. While clean data and straightforward conclusions that generate the simplest explanation are always favored, Occam’s razor leaves little room for uncertainty that stimulates creative thinking and discussion, and for facts that cannot be simply explained. In this Special Issue, studies involving innovative research tools and other model plants, perspectives, preliminary or negative findings, confirmations, and refutations will be an invaluable part of the process of generating knowledge towards an in-depth understanding of ethylene signaling and possibly uncovering hidden facts under “Occam’s broom”.

Prof. Dr. Chi-Kuang Wen
Guest Editor

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Keywords

  • ethylene
  • ethylene signaling
  • ethylene biosynthesis
  • ACC
  • epigenetics
  • omics
  • evolution
  • translation
  • redundancy

Published Papers (2 papers)

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Research

8 pages, 1623 KiB  
Communication
New Insights into Phase Separation Processes and Membraneless Condensates of EIN2
by Jian Lu, Chi-Kuang Wen and Georg Groth
Plants 2022, 11(16), 2149; https://0-doi-org.brum.beds.ac.uk/10.3390/plants11162149 - 18 Aug 2022
Cited by 2 | Viewed by 1694
Abstract
Recent technological advances allow us to resolve molecular processes in living cells with high spatial and temporal resolution. Based on these technological advances, membraneless intracellular condensates formed by reversible functional aggregation and phase separation have been identified as important regulatory modules in diverse [...] Read more.
Recent technological advances allow us to resolve molecular processes in living cells with high spatial and temporal resolution. Based on these technological advances, membraneless intracellular condensates formed by reversible functional aggregation and phase separation have been identified as important regulatory modules in diverse biological processes. Here, we present bioinformatic and cellular studies highlighting the possibility of the involvement of the central activator of ethylene responses EIN2 in such cellular condensates and phase separation processes. Our work provides insight into the molecular type (identity) of the observed EIN2 condensates and on potential intrinsic elements and sequence motifs in EIN2-C that may regulate condensate formation and dynamics. Full article
(This article belongs to the Special Issue Ethylene Signaling in Plants)
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22 pages, 1566 KiB  
Article
Genome-Wide Transcriptomic and Proteomic Exploration of Molecular Regulations in Quinoa Responses to Ethylene and Salt Stress
by Qian Ma, Chunxue Su and Chun-Hai Dong
Plants 2021, 10(11), 2281; https://0-doi-org.brum.beds.ac.uk/10.3390/plants10112281 - 25 Oct 2021
Cited by 9 | Viewed by 2146
Abstract
Quinoa (Chenopodiumquinoa Willd.), originated from the Andean region of South America, shows more significant salt tolerance than other crops. To reveal how the plant hormone ethylene is involved in the quinoa responses to salt stress, 4-week-old quinoa seedlings of ‘NL-6′ treated [...] Read more.
Quinoa (Chenopodiumquinoa Willd.), originated from the Andean region of South America, shows more significant salt tolerance than other crops. To reveal how the plant hormone ethylene is involved in the quinoa responses to salt stress, 4-week-old quinoa seedlings of ‘NL-6′ treated with water, sodium chloride (NaCl), and NaCl with ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) were collected and analyzed by transcriptional sequencing and tandem mass tag-based (TMT) quantitative proteomics. A total of 9672 proteins and 60,602 genes was identified. Among them, the genes encoding glutathione S-transferase (GST), peroxidase (POD), phosphate transporter (PT), glucan endonuclease (GLU), beta-galactosidase (BGAL), cellulose synthase (CES), trichome birefringence-like protein (TBL), glycine-rich cell wall structural protein (GRP), glucosyltransferase (GT), GDSL esterase/lipase (GELP), cytochrome P450 (CYP), and jasmonate-induced protein (JIP) were significantly differentially expressed. Further analysis suggested that the genes may mediate through osmotic adjustment, cell wall organization, reactive oxygen species (ROS) scavenging, and plant hormone signaling to take a part in the regulation of quinoa responses to ethylene and salt stress. Our results provide a strong foundation for exploration of the molecular mechanisms of quinoa responses to ethylene and salt stress. Full article
(This article belongs to the Special Issue Ethylene Signaling in Plants)
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