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Special Issue "Biotic and Abiotic Stress Effects on Plant Structure and Physiology"

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 31 March 2022.

Special Issue Editor

Dr. Ioannis-Dimosthenis Adamakis
E-Mail Website
Guest Editor
Section of Botany, Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
Interests: plant cell biology; emerging pollutant effects on plant cells; biotic stress effects on plants; phytomorphogenesis; plant biomass utilization; innovative ecological quality monitoring systems
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Plants are subjected to a wide range of environmental pressures. Here, plants encounter two types of environmental stresses, which can be categorized as (1) abiotic and (2) biotic. Abiotic stress includes radiation, salinity, floods, drought, extremes in temperature, heavy metals, etc. On the other hand, attacks by various pathogens, such as fungi, bacteria, oomycetes, nematodes and herbivores, are included in biotic stresses. As plants are sessile in nature, they have no choice to escape from these environmental cues. Therefore, plants have developed various mechanisms in order to overcome these threats of biotic and abiotic stresses. The plant responses are dependent on the tissue or organ affected. They sense the external stress, get stimulated and then generate appropriate cellular responses that are reflected in the plant organ’s structural changes. They do this by stimuli received from the sensors located on the cell surface or cytoplasm and transferred to the transcriptional machinery situated in the nucleus, with the help of various signal transduction pathways. The signaling pathways act as a connecting link and play an important role between sensing the stress and generating an appropriate biochemical and physiological response. There is an urgent need for a change of focus in plant stress research, in order to understand the nature of multiple stress responses and to create avenues for developing plants that are resistant to multiple stresses yet maintain high yields. This Special Issue focuses on the effects of biotic and abiotic stress interaction in plants, with an emphasis on elucidating the molecular/cellular mechanisms involved. We encourage novices and experienced scientists to contribute original research papers and reviews on the effects of any environmental pressurant on plants. Contributions at the organism, cellular, molecular and any -omic level are highly welcome.

Dr. Ioannis-Dimosthenis Adamakis
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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • environmental extremes
  • heavy metals
  • herbivores
  • pollutants
  • photosynthesis
  • pathogens
  • parasites
  • ROS
  • structural integrity

Published Papers (1 paper)

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Research

Article
CaFtsH06, A Novel Filamentous Thermosensitive Protease Gene, Is Involved in Heat, Salt, and Drought Stress Tolerance of Pepper (Capsicum annuum L.)
Int. J. Mol. Sci. 2021, 22(13), 6953; https://doi.org/10.3390/ijms22136953 - 28 Jun 2021
Viewed by 583
Abstract
Harsh environmental factors have continuous negative effects on plant growth and development, leading to metabolic disruption and reduced plant productivity and quality. However, filamentation temperature-sensitive H protease (FtsH) plays a prominent role in helping plants to cope with these negative impacts. In the [...] Read more.
Harsh environmental factors have continuous negative effects on plant growth and development, leading to metabolic disruption and reduced plant productivity and quality. However, filamentation temperature-sensitive H protease (FtsH) plays a prominent role in helping plants to cope with these negative impacts. In the current study, we examined the transcriptional regulation of the CaFtsH06 gene in the R9 thermo-tolerant pepper (Capsicum annuum L.) line. The results of qRT-PCR revealed that CaFtsH06 expression was rapidly induced by abiotic stress treatments, including heat, salt, and drought. The CaFtsH06 protein was localized to the mitochondria and cell membrane. Additionally, silencing CaFtsH06 increased the accumulation of malonaldehyde content, conductivity, hydrogen peroxide (H2O2) content, and the activity levels of superoxide dismutase and superoxide (·O2), while total chlorophyll content decreased under these abiotic stresses. Furthermore, CaFtsH06 ectopic expression enhanced tolerance to heat, salt, and drought stresses, thus decreasing malondialdehyde, proline, H2O2, and ·O2 contents while superoxide dismutase activity and total chlorophyll content were increased in transgenic Arabidopsis. Similarly, the expression levels of other defense-related genes were much higher in the transgenic ectopic expression lines than WT plants. These results suggest that CaFtsH06 confers abiotic stress tolerance in peppers by interfering with the physiological indices through reducing the accumulation of reactive oxygen species, inducing the activities of stress-related enzymes and regulating the transcription of defense-related genes, among other mechanisms. The results of this study suggest that CaFtsH06 plays a very crucial role in the defense mechanisms of pepper plants to unfavorable environmental conditions and its regulatory network with other CaFtsH genes should be examined across variable environments. Full article
(This article belongs to the Special Issue Biotic and Abiotic Stress Effects on Plant Structure and Physiology)
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