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Plants
Special Issues
Plant Pathology and Epidemiology for Grain, Pulses, and Cereal Crops
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Plant Pathology and Epidemiology for Grain, Pulses, and Cereal Crops

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

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2916

Special Issue Editors

Dr. Haiguang Wang

E-Mail Website
Guest Editor
Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China
Interests: plant pathology; epidemiology; disease monitoring; disease prediction; disease image recognition; smart phytoprotection; climate change
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jinliang Liu

E-Mail Website
Guest Editor
Department of Plant Protection, College of Plant Sciences, Jilin University, Changchun 130062, China
Interests: plant-pathogen interaction mechanism; molecular biology of plant pathogens; comprehensive green control of plant diseases

Special Issue Information

Dear Colleagues,

Grain, pulses, and cereal crops provide a variety of nutrients for humans around the world. However, they are threatened by various pathogens and diseases, which may not only reduce their yield and quality, but may also affect environmental and social safety. Great progress has been made in the study of these pathogens and diseases, allowing us to deeply understand the relationship between pathogens and hosts, and the epidemic laws of the diseases. The methods for forecasting and controlling these diseases have been updated and optimized to ensure the health of grain, pulses, and cereal crops. With the rapid development of molecular biology methods and modern information technology, significant advances and a series of research results have been achieved in plant pathology and epidemiology for grain, pulses, and cereal crops, especially in pathogenic mechanisms, the disease resistance mechanisms of hosts, pathogen–host/vector–pathogen–host interaction mechanisms, and monitoring and forecasting the pathogens and diseases, providing support for their effective and sustainable control. This Special Issue will collect original papers focusing on the topics in the scope of plant pathology and epidemiology for grain, pulses, and cereal crops, aiming to broaden our understanding of the related pathogens and diseases for their sustainable management.

Dr. Haiguang Wang
Prof. Dr. Jinliang Liu
Guest Editors

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. Plants is an international peer-reviewed open access semimonthly 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

  • grain crop disease
  • pulses crop disease
  • cereal crop disease
  • pathology
  • epidemiology
  • pathogen–host interaction
  • disease control theory
  • disease monitoring
  • disease forecast

Published Papers (3 papers)

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Research

15 pages, 4617 KiB  
Article
OsJAZ4 Fine-Tunes Rice Blast Resistance and Yield Traits
by Mingfeng Zhang, Xiao Luo, Wei He, Min Zhang, Zhirong Peng, Huafeng Deng and Junjie Xing
Plants 2024, 13(3), 348; https://doi.org/10.3390/plants13030348 - 24 Jan 2024
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Abstract
JAZ proteins function as transcriptional regulators that form a jasmonic acid–isoleucine (JA-Ile) receptor complex with coronatine insensitive 1 (COI1) and regulate plant growth and development. These proteins also act as key mediators in signal transduction pathways that activate the defense-related genes. Herein, the [...] Read more.
JAZ proteins function as transcriptional regulators that form a jasmonic acid–isoleucine (JA-Ile) receptor complex with coronatine insensitive 1 (COI1) and regulate plant growth and development. These proteins also act as key mediators in signal transduction pathways that activate the defense-related genes. Herein, the role of OsJAZ4 in rice blast resistance, a severe disease, was examined. The mutation of OsJAZ4 revealed its significance in Magnaporthe oryzae (M. oryzae) resistance and the seed setting rate in rice. In addition, weaker M. oryzae-induced ROS production and expression of the defense genes OsO4g10010, OsWRKY45, OsNAC4, and OsPR3 was observed in osjaz4 compared to Nipponbare (NPB); also, the jasmonic acid (JA) and gibberellin4 (GA4) content was significantly lower in osjaz4 than in NPB. Moreover, osjaz4 exhibited a phenotype featuring a reduced seed setting rate. These observations highlight the involvement of OsJAZ4 in the regulation of JA and GA4 content, playing a positive role in regulating the rice blast resistance and seed setting rate. Full article
(This article belongs to the Special Issue Plant Pathology and Epidemiology for Grain, Pulses, and Cereal Crops)
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11 pages, 2549 KiB  
Article
Codon Optimization Enables the Geneticin Resistance Gene to Be Applied Efficiently to the Genetic Manipulation of the Plant Pathogenic Fungus Botrytis cinerea
by Maoyao Tang, Yangyizhou Wang, Kexin Wang, Yuanhang Zhou, Enshuang Zhao, Hao Zhang, Mingzhe Zhang, Hang Yu, Xi Zhao and Guihua Li
Plants 2024, 13(2), 324; https://doi.org/10.3390/plants13020324 - 22 Jan 2024
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Abstract
Botrytis cinerea can infect almost all of the important horticultural crops and cause severe economic losses globally every year. Modifying candidate genes and studying the phenotypic changes are among the most effective ways to unravel the pathogenic mechanism of this crop killer. However, [...] Read more.
Botrytis cinerea can infect almost all of the important horticultural crops and cause severe economic losses globally every year. Modifying candidate genes and studying the phenotypic changes are among the most effective ways to unravel the pathogenic mechanism of this crop killer. However, few effective positive selection markers are used for B. cinerea genetic transformation, which limits multiple modifications to the genome, especially genes involving redundant functions. Here, we optimized a geneticin resistance gene, BcNPTII, based on the codon usage preference of B. cinerea. We found that BcNPTII can greatly increase the transformation efficiency of B. cinerea under G418 selection, with approximately 30 times higher efficiency than that of NPTII, which is applied efficiently to transform Magnaporthe oryzae. Using the gene replacement method, we successfully knocked out the second gene BOT2, with BcNPTII as the selection marker, from the mutant ΔoahA, in which OAHA was first replaced by the hygromycin resistance gene HPH in a field strain. We obtained the double knockout mutant ΔoahA Δbot2. Our data show that the codon-optimized BcNPTII is an efficient positive selection marker for B. cinerea transformation and can be used for various genetic manipulations in B. cinerea, including field wild-type strains. Full article
(This article belongs to the Special Issue Plant Pathology and Epidemiology for Grain, Pulses, and Cereal Crops)
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16 pages, 4992 KiB  
Article
Stripe Rust Effector Pst_9302 Inhibits Wheat Immunity to Promote Susceptibility
by Haibin Zhao, Jiangyu Huang, Xiaoyan Zhao, Ligang Yu, Xiaodong Wang, Congcong Zhao, Hojjatollah Rabbani nasab, Chunlei Tang and Xiaojie Wang
Plants 2024, 13(1), 94; https://doi.org/10.3390/plants13010094 - 27 Dec 2023
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Abstract
Puccinia striiformis f. sp. tritici is an obligate biotrophic fungus that causes destructive stripe rust disease in wheat. During infection, Pst secretes virulence effectors via a specific infection structure—the haustorium—inside host cells to disturb host immunity and promote fungal colonization and expansion. Hence, [...] Read more.
Puccinia striiformis f. sp. tritici is an obligate biotrophic fungus that causes destructive stripe rust disease in wheat. During infection, Pst secretes virulence effectors via a specific infection structure—the haustorium—inside host cells to disturb host immunity and promote fungal colonization and expansion. Hence, the identification and functional analyses of Pst effectors are of great significance in deciphering the Pst pathogenicity mechanism. Here, we identified one candidate Pst effector Pst_9302 that could suppress Bax-triggered cell death in Nicotiana benthamiana. qRT-PCR analyses showed that the transcript levels of Pst_9302 were highly increased during the early infection stages of Pst. The transient expression of Pst_9302 in wheat via the type-three secretion system (T3SS) significantly inhibited the callose deposition induced by Pseudomonas syringae EtHAn. During wheat–Pst interaction, Pst_9302 overexpression suppressed reactive oxygen species (ROS) accumulation and cell death caused by the avirulent Pst race CYR23. The host-induced gene silencing (HIGS) of Pst_9302 resulted in decreased Pst pathogenicity with reduced infection area. The results suggest that Pst_9302 plays a virulence role in suppressing plant immunity and promoting Pst pathogenicity. Moreover, wheat voltage-dependent anion channel 1 protein (TaVDAC1) was identified as candidate Pst_9302-interacting proteins by yeast two-hybrid (Y2H) screening. Pull-down assays using the His-Pst_9302 and GST-TaVDAC1 protein verified their interactions. These results suggest that Pst_9302 may modulate wheat TaVDAC1 to regulate plant immunity. Full article
(This article belongs to the Special Issue Plant Pathology and Epidemiology for Grain, Pulses, and Cereal Crops)
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