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Plant Pathogen Diagnosis, Fungal Diversity, and Molecular Interaction with Host

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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: closed (30 September 2022) | Viewed by 6718

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Special Issue Editor

Prof. Dr. Yong Wang

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Guest Editor

Key Laboratory of Agricultural Microbiology, College of Agriculture, GuiZhou University, Guiyang 550025, China
Interests: plant pathogens; disease resistance; plant–pathogen interaction; biological control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant disease is a severe stressor, which can extensively restrict the production of plants by interrupting the balance of plant innate immunity systems, hormone signaling pathways, transcription regulation, and protein modification, etc. Recently, real-time, visualized, time-saving, and sensitive technologies have been developed for the detection of plant pathogens, and biological techniques, such as transcriptomics, proteomics, VIGS, CRISPR, HIGS, and gene knock out were also established for deciphering the molecular mechanisms behind plant–pathogen interactions. In addition, microbial communities play important roles in protecting the plant environment against pathogen invasion. Fungi, the largest microbes causing plant disease, are abundant and diverse, but not enough attention has been paid to this area; thus, new taxa or cryptic species could be found from an evolutionary perspective. Investigating fungal diversity in terms of biodiversity and systematic and molecular phylogeny is a current research hotspot. New discoveries in the above research areas will be considered in this Special Issue.

For this Special Issue, we would like to invite reviews and original research papers on the latest molecular, biochemical, and functional genomics, and microbial research within this field focusing on pathogen detection, fungal diversity, host–pathogen interactions and biological control.

Prof. Dr. Yong Wang
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. 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

pathogen detection
microbial communities
fungal diversity
disease resistance
gene function
plant–pathogen interaction
post-transcriptional modification
transcriptomics
metabolomics
biological control

Published Papers (3 papers)

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Research

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15 pages, 4108 KiB

Open AccessArticle

Comparative Transcriptome Analysis and Genetic Methods Revealed the Biocontrol Mechanism of Paenibacilluspolymyxa NSY50 against Tomato Fusarium Wilt

by Nanshan Du, Hui Guo, Ruike Fu, Xiaoxing Dong, Dongqi Xue and Fengzhi Piao

Int. J. Mol. Sci. 2022, 23(18), 10907; https://doi.org/10.3390/ijms231810907 - 18 Sep 2022

Cited by 6 | Viewed by 2056

Abstract

Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (Fol) is a common disease that affects tomatoes, which can cause the whole plant to wilt and seriously reduce the production of tomatoes in greenhouses. In this study, the morphological indexes, photosynthetic performance and incidence rate of NSY50 under Fol infection were evaluated. It was found that NSY50 could improve the growth of tomato seedlings and significantly reduce the incidence rate of Fusarium wilt. However, the molecular mechanism of NSY50 that induces resistance to Fusarium wilt is still unclear. We used transcriptomic methods to analyze NSY50-induced resistance to Fol in tomatoes. The results showed that plant defense related genes, such as PR and PAL, were highly expressed in tomato seedlings pretreated with NSY50. At the same time, photosynthetic efficiency, sucrose metabolism, alkaloid biosynthesis and terpene biosynthesis were significantly improved, which played a positive role in reducing the damage caused by Fol infection and enhancing the disease tolerance of seedlings. Through transgenic validation, we identified an important tomato NAC transcription factor, SlNAP1, which was preliminarily confirmed to be effective in relieving the detrimental symptoms induced by Fol. Our findings reveal that P. polymyxa NSY50 is an effective plant-growth-promoting rhizosphere bacterium and also a biocontrol agent of soil-borne diseases, which can significantly improve the resistance of tomato to Fusarium wilt. Full article

(This article belongs to the Special Issue Plant Pathogen Diagnosis, Fungal Diversity, and Molecular Interaction with Host)

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20 pages, 5027 KiB

Open AccessArticle

Development of Comprehensive Serological Techniques for Sensitive, Quantitative and Rapid Detection of Soybean mosaic virus

by Rui Ren, Tao Wang, Le Gao, Puwen Song, Yunhua Yang, Haijian Zhi and Kai Li

Int. J. Mol. Sci. 2022, 23(16), 9457; https://doi.org/10.3390/ijms23169457 - 21 Aug 2022

Cited by 3 | Viewed by 2294

Abstract

Soybean is an important grain and oil crop worldwide; however, the yield and seed quality of which are seriously affected by Soybean mosaic virus (SMV). As efficient detection technology is crucial for the field management of SMV, novel immunological detection methods were developed in the present study. According to the phylogenetic analysis, the CP coding sequence of SMV-SC7 was selected for the prokaryotic expression of the recombinant SMV-CP. Purified SMV-CP was used for the development of polyclonal antibodies (PAb) against the SMV-CP (PAb-SMV-CP) and monoclonal antibodies (MAb) against SMV-CP (MAb-SMV-CP). Subsequently, the PAb-SMV-CP was used for the development of a novel DAS- quantitative ELISA (DAS-qELISA) kit, of which the sensitivity was greater than 1:4000, and this could be used for the quantitative detection of SMV in China. Meanwhile, the MAb-SMV-CP was labeled with colloidal gold, and then was used for the development of the SMV-specific gold immunochromatography strip (SMV-GICS). The SMV-GICS gives accurate detection results through observed control lines and test lines in 5 to 10 min, sharing the same sensitivity as RT-PCR, and can be used for rapid, accurate and high-throughput field SMV detection. The DAS-qELISA kit and the SMV-GICA strip developed in this study are SMV-specific, sensitive, cheap and easy to use. These products will be conducive to the timely, efficient SMV epidemiology and detection in major soybean-producing regions in China and abroad. Full article

(This article belongs to the Special Issue Plant Pathogen Diagnosis, Fungal Diversity, and Molecular Interaction with Host)

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Review

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22 pages, 1053 KiB

Open AccessReview

Appressoria—Small but Incredibly Powerful Structures in Plant–Pathogen Interactions

by Ting-Ting Shi, Guo-Hong Li and Pei-Ji Zhao

Int. J. Mol. Sci. 2023, 24(3), 2141; https://doi.org/10.3390/ijms24032141 - 21 Jan 2023

Cited by 3 | Viewed by 1801

Abstract

Plant-pathogenic fungi are responsible for many of the most severe crop diseases in the world and remain very challenging to control. Improving current protection strategies or designating new measures based on an overall understanding of molecular host–pathogen interaction mechanisms could be helpful for disease management. The attachment and penetration of the plant surface are the most important events among diverse plant–fungi interactions. Fungi evolved as small but incredibly powerful infection structure appressoria to facilitate attachment and penetration. Appressoria are indispensable for many diseases, such as rusts, powdery mildews, and blast diseases, as well as devastating oomycete diseases. Investigation into the formation of plant–pathogen appressoria contributes to improving the understanding of the molecular mechanisms of plant–pathogen interactions. Fungal host attachment is a vital step of fungal pathogenesis. Here, we review recent advances in the molecular mechanisms regulating the formation of appressoria. Additionally, some biocontrol agents were revealed to act on appressorium. The regulation of fungal adhesion during the infective process by acting on appressoria formation is expected to prevent the occurrence of crop disease caused by some pathogenic fungi. Full article

(This article belongs to the Special Issue Plant Pathogen Diagnosis, Fungal Diversity, and Molecular Interaction with Host)

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