Special Issue "Ethylene Signaling and Crosstalk in Plant Responses to Abiotic Stress"

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: 15 December 2020.

Special Issue Editor

Professor Irina Vaseva
Website
Guest Editor
Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Interests: Plant hormones, ethylene, cytokinins, cell type specificity of hormonal signaling and crosstalk, dehydrins, expression of stress-inducible proteins

Special Issue Information

Dear Colleagues,

Ethylene plays an important role in controlling the morphological and molecular processes observed in plants subjected to environmental stress. Besides being a major stress hormone, it modulates virtually every stage in plant development as a response to developmental cues. The characterization of a number of ethylene mutants has revealed the major players in the ethylene signaling cascade, providing tools to elucidate its molecular mechanism and sites of action. It should be marked that the undoubted progress made in understanding the function of ethylene signals under stress has also put in focus some new research questions. For example, there are still many gaps in knowledge regarding the role of ethylene-responsive transcription factors (AP2/ERF) as a source to target ethylene crosstalk with other hormones under unfavorable environment. A mechanistic understanding of how different hormones coordinate their action in order to help the plants to adapt to different environmental conditions could be useful in crop management and improvement. Another hot topic is the role of the ethylene precursor 1-Aminocyclopropane 1-Carboxylic Acid (ACC) under abiotic stress since an increasing number of studies have established that ACC acts as a signaling molecule beyond its function in ethylene biosynthesis.

Plant growth and development depend on signals perceived in distinct cell types where hormonal inputs are transformed into orchestrated responses. In this line of thought, the cell type-specific ethylene signal transduction and its role in various adaptive mechanisms remain relatively unexplored. A limited number of studies are dealing with the involvement of ethylene signals in epigenetic regulation of stress responses and epigenetic stress memory.

This Special Issue welcomes contributions from research teams working in the field of ethylene signaling and crosstalk under abiotic stress. Submission of articles featuring original studies addressing the aforementioned topics in different plant model species, economically important crops, ornamental and medicinal plants are encouraged.

Professor Irina Vaseva
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 papers will be 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. Plants 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 1600 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
  • ethylene signaling
  • 1-Aminocyclopropane 1-Carboxylic Acid (ACC)
  • ethylene-responsive transcription factors
  • ethylene-regulated stress-inducible proteins
  • hormonal crosstalk
  • cell type specificity
  • model and medicinal plants
  • ornamentals
  • economically important crops

Published Papers (1 paper)

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Research

Open AccessArticle
Expression Fluctuations of Genes Involved in Carbohydrate Metabolism Affected by Alterations of Ethylene Biosynthesis Associated with Ripening in Banana Fruit
Plants 2020, 9(9), 1120; https://doi.org/10.3390/plants9091120 - 30 Aug 2020
Abstract
The banana is a typical climacteric fruit that undergoes ethylene dependent ripening. During fruit ripening, ethylene production triggers a developmental cascade that results in a series of physiological and biochemical changes. The fruit transcriptomes of untransformated wild-type (WT) and RNAi transgenic banana plants [...] Read more.
The banana is a typical climacteric fruit that undergoes ethylene dependent ripening. During fruit ripening, ethylene production triggers a developmental cascade that results in a series of physiological and biochemical changes. The fruit transcriptomes of untransformated wild-type (WT) and RNAi transgenic banana plants for Mh-ACO1 and Mh-ACO2 have been previously sequenced and analyzed, and most of the differentially expressed genes were enriched in ‘carbon fixation in photosynthetic organism’, ‘cysteine and methionine metabolism’, ‘citrate cycle (tricarboxylic acid cycle, TCA cycle)’, and ‘starch and sucrose metabolism’ based on Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation. In this research, we investigated the expression fluctuations of genes involved in carbohydrate metabolism affected by alterations of ethylene biosynthesis associated with ripening in banana fruits. Expression profiles of sucrose synthase, sucrose phosphate synthase, neutral invertase, and acidic invertase/β-fructofuranosidase, as analyzed by Avadis and Trinity, showed that both analyses were complementary and consistent. The overall gene expression tendency was confirmed by the implementation of quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR) with mRNAs of banana fruits in Mh-ACO1 and Mh-ACO2 RNAi transgenic plants. These results indicated that altered expression of genes associated with ethylene biosynthesis strongly influenced the expression levels of genes related to starch and sucrose metabolism, as well as the glycolysis pathway in ripening banana fruits. Full article
(This article belongs to the Special Issue Ethylene Signaling and Crosstalk in Plant Responses to Abiotic Stress)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Comparative study of several Fe deficiency responses in the Arabidopsis thaliana ethylene insensitive mutants ein2-1 and ein2-5
Authors: Macarena Angulo 2; Francisco Javier Romera 2; Esteban Alcántara 2; Carlos Lucena; Rafael Pérez-Vicente 1; María José García 1,*
Affiliation: 1Department of Botany, Ecology and Plant Physiology, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Celestino Mutis, 14071 Córdoba, Spain 2Department of Agronomy, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Celestino Mutis, 14071 Córdoba, Spain
Abstract: Iron (Fe) is an essential micronutrient for plants since it participates in essential processes such us photosynthesis, respiration and nitrogen assimilation. Fe is an abundant element in soils but its availability for plants is low. Fe deficiency causes Fe chlorosis which can affects the productivity of the affected crops. Plants favor Fe acquisition by developing morphological and physiological responses in their roots. Ethylene and nitric oxide (NO) have been involved in the up-regulation of Fe deficiency responses in dicot plants. In this work, it has been conducted a comparative study of the main morphological and physiological responses to Fe deficiency in the Arabidopsis thaliana ethylene insensitive mutants ein2-1 and ein2-5, affected in EIN2, a key protein of the ethylene transduction pathway. The differential behavior of both mutants under Fe deficiency conditions and in response to 1-aminocyclopropane-1-carboxylate (ACC) or S-nitrosoglutathione (GSNO) treatment will be discussed.

Title: Expression Fluctuations of Genes Involved in Carbohydrate Metabolism Affected by Alterations of Ethylene Biosynthesis Associated with Ripening in Banana Fruit
Authors: Yan Xia; Chien-Hsiang Chiu; Yi-Yin Do; Pung-Ling Huang
Affiliation: Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan
Abstract: Banana is a typical climacteric fruit that undergoes ethylene dependent ripening. During fruit ripening, ethylene production triggers a developmental cascade that results in a series of physiological and biochemical changes. The fruit transcriptomes of WT, RNAi transgenic banana plants for Mh-ACO1 and Mh-ACO2 have been previously sequenced and analyzed, and most of the differentially expressed genes were enriched in ‘carbon fixation in photosynthetic organism’, ‘cysteine and methionine metabolism’, ‘citrate cycle (TCA cycle)’, and ‘starch and sucrose metabolism’ based on KEGG annotation. In this research the expression fluctuations of genes involved in carbohydrate metabolism as affected by alterations of ethylene biosynthesis associated with ripening in banana fruits were investigated. Expression profiles of the sucrose synthase, sucrose phosphate synthase, neutral invertase, and acidic invertase/β-fructofuranosidase, as analyzed by Avadis and Trinity, showed that both analyses were complementary and consistent. The overall gene expression tendency was confirmed by the implementation of quantitative real-time RT-PCR with mRNAs of banana fruits in Mh-ACO1 and Mh-ACO2 RNAi transgenic plants. These results all indicated that expression levels of genes related to starch and sucrose metabolism, as well as the glycolysis pathway in ripening banana fruits, were strongly influenced by the expression of genes associated with ethylene biosynthesis.

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