Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.4
4.5
Journals
Microorganisms
Special Issues
Molecular Interactions between Plant Pathogens and Crops
share announcement

Molecular Interactions between Plant Pathogens and Crops

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Plant Microbe Interactions".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 8027

Special Issue Editor

Prof. Dr. Kamel Ahmed Abd-Elsalam

E-Mail Website
Guest Editor
Plant Pathology Research Institute, Agricultural Research Center, Giza 12619, Egypt
Interests: agricultural nanotechnology; rapid diagnostic methods; breeding resistant varieties; pathogen genomes; eco-friendly nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Pathogens such as fungus, bacteria, and viruses are posing a threat to crops. Agricultural systems and industry have suffered significant economic losses due to plant diseases. To fully understand how these responses are integrated in space and time, and to leverage this information in agriculture, further study will be necessary, in order to uncover crop-specific resistance mechanisms against diverse diseases. Understanding the molecular interactions between crops and pathogens may help to avoid plant disease, which would benefit agricultural production and global food security. We seek multidisciplinary methods that can characterize the evolution, function, and control of the plant immune system. In this Special Issue, we hope to collect contributions that include improved information, approaches, viewpoints, and outlooks on the investigation of molecular interactions between crop and plant diseases. As a result, we encourage submissions of original research articles, reviews, and techniques, as well as research on the following sub-themes (but not limited to):

  • Epigenetics mechanisms;
  • Pathosystem mechanisms;
  • Plant defense mechanisms;
  • Effector biology of plant pathogens;
  • Detection resistance genes (R genes) in plants;
  • Secondary metabolites in plant–plant interactions;
  • CRISPR technology and plant–pathogen interactions;
  • OMICS approaches to understanding plant–pathogen interactions.

Prof. Dr. Kamel Ahmed Abd-Elsalam
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. Microorganisms 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 2700 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

  • epigenetics mechanisms
  • pathosystem mechanisms
  • plant defense mechanisms
  • effector biology of plant pathogens
  • detection resistance genes (R genes) in plants
  • secondary metabolites in plant-plant interactions
  • CRISPR technology and plant-pathogen interactions
  • OMICS approaches to understanding plant-pathogen interactions

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 2217 KiB  
Article
HexR Transcription Factor Contributes to Pseudomonas cannabina pv. alisalensis Virulence by Coordinating Type Three Secretion System Genes
by Nanami Sakata, Takashi Fujikawa, Ayaka Uke, Takako Ishiga, Yuki Ichinose and Yasuhiro Ishiga
Microorganisms 2023, 11(4), 1025; https://doi.org/10.3390/microorganisms11041025 - 14 Apr 2023
Viewed by 1445
Abstract
Pseudomonas cannabina pv. alisalensis (Pcal) causes bacterial blight on cabbage. We previously conducted a screening for reduced virulence using Tn5 transposon mutants and identified one of the transcriptional factors, HexR, as a potential Pcal virulence factor. However, the role of [...] Read more.
Pseudomonas cannabina pv. alisalensis (Pcal) causes bacterial blight on cabbage. We previously conducted a screening for reduced virulence using Tn5 transposon mutants and identified one of the transcriptional factors, HexR, as a potential Pcal virulence factor. However, the role of HexR in plant pathogenic Pseudomonas virulence has not been investigated well. Here, we demonstrated that the Pcal hexR mutant showed reduced disease symptoms and bacterial populations on cabbage, indicating that HexR contributes to Pcal virulence. We used RNA-seq analysis to characterize the genes regulated by HexR. We found that several type three secretion system (T3SS)-related genes had lower expression of the Pcal hexR mutant. Five genes were related to T3SS machinery, two genes were related to type three helper proteins, and three genes encoded type three effectors (T3Es). We also confirmed that T3SS-related genes, including hrpL, avrPto, hopM1, and avrE1, were also down-regulated in the Pcal hexR mutant both in culture and in vivo by using RT-qPCR. T3SS functions to suppress plant defense in host plants and induce hypersensitive response (HR) cell death in non-host plants. Therefore, we investigated the expression profiles of cabbage defense-related genes, including PR1 and PR5, and found that the expressions of these genes were greater in the Pcal hexR mutant. We also demonstrated that the hexR mutant did not induce HR cell death in non-host plants, indicating that HexR contributes in causing HR in nonhost plants. Together, these results indicate that the mutation in hexR leads to a reduction in the T3SS-related gene expression and thus an impairment in plant defense suppression, reducing Pcal virulence. Full article
(This article belongs to the Special Issue Molecular Interactions between Plant Pathogens and Crops)
►▼ Show Figures

Figure 1

13 pages, 1704 KiB  
Article
Colletotrichum truncatum Causing Anthracnose of Tomato (Solanum lycopersicum L.) in Malaysia
by Saleh Ahmed Shahriar, Asmaul Husna, Terna Tersoo Paul, Most. Nurjahan Khatun Eaty, Md Quamruzzaman, Abu Bakar Siddique, Md Abdur Rahim, Abu Noman Faruq Ahmmed, Jasim Uddain and Shafiquzzaman Siddiquee
Microorganisms 2023, 11(1), 226; https://doi.org/10.3390/microorganisms11010226 - 16 Jan 2023
Cited by 4 | Viewed by 4290
Abstract
Tomato (Solanum lycopersicum L.) is a popular nutritious vegetable crop grown in Malaysia and other parts of the world. However, fungal diseases such as anthracnose pose significant threats to tomato production by reducing the fruit quality and food value of tomato, resulting [...] Read more.
Tomato (Solanum lycopersicum L.) is a popular nutritious vegetable crop grown in Malaysia and other parts of the world. However, fungal diseases such as anthracnose pose significant threats to tomato production by reducing the fruit quality and food value of tomato, resulting in lower market prices of the crop globally. In the present study, the etiology of tomato anthracnose was investigated in commercial tomato farms in Sabah, Malaysia. A total of 22 fungal isolates were obtained from anthracnosed tomato fruits and identified as Colletotrichum species, using morphological characteristics. The phylogenetic relationships of multiple gene sequence alignments such as internal transcribed spacer (ITS), β-tubulin (tub2), glyceraldehyde 3-phosphate dehydrogenase (gapdh), actin (act), and calmodulin (cal), were adopted to accurately identify the Colletotrichum species as C. truncatum. The results of pathogenicity tests revealed that all C. truncatum isolates caused anthracnose disease symptoms on inoculated tomato fruits. To our knowledge, the present study is the first report of tomato anthracnose caused by C. truncatum in Malaysia. The findings of this study will be helpful in disease monitoring, and the development of strategies for effective control of anthracnose on tomato fruits. Full article
(This article belongs to the Special Issue Molecular Interactions between Plant Pathogens and Crops)
►▼ Show Figures

Figure 1

15 pages, 4581 KiB  
Article
Beyond Destabilizing Activity of SAP11-like Effector of Candidatus Phytoplasma mali Strain PM19
by Kajohn Boonrod, Alisa Strohmayer, Timothy Schwarz, Mario Braun, Tristan Tropf and Gabi Krczal
Microorganisms 2022, 10(7), 1406; https://doi.org/10.3390/microorganisms10071406 - 12 Jul 2022
Cited by 1 | Viewed by 1403
Abstract
It was shown that the SAP11 effector of different Candidatus Phytoplasma can destabilize some TEOSINE BRANCHES/CYCLOIDEA/PROLIFERATING CELL FACTORs (TCPs), resulting in plant phenotypes such as witches’ broom and crinkled leaves. Some SAP11 exclusively localize in the nucleus, while the others localize in the [...] Read more.
It was shown that the SAP11 effector of different Candidatus Phytoplasma can destabilize some TEOSINE BRANCHES/CYCLOIDEA/PROLIFERATING CELL FACTORs (TCPs), resulting in plant phenotypes such as witches’ broom and crinkled leaves. Some SAP11 exclusively localize in the nucleus, while the others localize in the cytoplasm and the nucleus. The SAP11-like effector of Candidatus Phytoplasma mali strain PM19 (SAP11PM19) localizes in both compartments of plant cells. We show here that SAP11PM19 can destabilize TCPs in both the nucleus and the cytoplasm. However, expression of SAP11PM19 exclusively in the nucleus resulted in the disappearance of leaf phenotypes while still showing the witches’ broom phenotype. Moreover, we show that SAP11PM19 can not only destabilize TCPs but also relocalizes these proteins in the nucleus. Interestingly, three different transgenic Nicotiana species expressing SAP11PM19 show all the same witches’ broom phenotype but different leaf phenotypes. A possible mechanism of SAP11-TCP interaction is discussed. Full article
(This article belongs to the Special Issue Molecular Interactions between Plant Pathogens and Crops)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop