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Deciphering the Molecular Mechanisms That Regulate Rice Plant Disease and Immunity

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 (31 March 2024) | Viewed by 2061

Special Issue Editor

Prof. Dr. Aiping Zheng

E-Mail Website
Guest Editor
1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
2. State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China
Interests: rice fungal diseases; rice sheath blight; pathogen–host interactions; plant protection
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This research initiative seeks to elucidate the detailed molecular processes underlying the development of plant diseases and the activation of the immune system. The ability of plants to defend themselves from pathogens is crucial to the health and productivity of agricultural systems. Despite significant advances in the comprehension of plant immunity, the molecular complexities involved still need to be thoroughly uncovered.

This study attempts to decipher the signaling pathways, gene regulation networks, and protein interactions contributing to disease susceptibility and resistance by employing a multidisciplinary approach encompassing genetics, genomics, biochemistry, and advanced imaging techniques. Insights gained from this research will enhance our fundamental comprehension of plant–pathogen interactions and provide valuable information for the development of innovative strategies to boost plant immunity and reduce disease-related agricultural losses. Reviews, original research, and communications will be welcomed.

Prof. Dr. Aiping Zheng
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

  • plant disease
  • pathogen
  • plant immunity
  • disease susceptibility
  • resistance
  • plant–pathogen interaction

Published Papers (2 papers)

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Research

15 pages, 2780 KiB  
Article
OsLRR-RLP2 Gene Regulates Immunity to Magnaporthe oryzae in Japonica Rice
by Hyo-Jeong Kim, Jeong Woo Jang, Thuy Pham, Van Tuyet, Ji-Hyun Kim, Chan Woo Park, Yun-Shil Gho, Eui-Jung Kim, Soon-Wook Kwon, Jong-Seong Jeon, Sun Tae Kim, Ki-Hong Jung and Yu-Jin Kim
Int. J. Mol. Sci. 2024, 25(4), 2216; https://doi.org/10.3390/ijms25042216 - 12 Feb 2024
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Abstract
Rice is an important cereal crop worldwide, the growth of which is affected by rice blast disease, caused by the fungal pathogen Magnaporthe oryzae. As climate change increases the diversity of pathogens, the disease resistance genes (R genes) in plants must [...] Read more.
Rice is an important cereal crop worldwide, the growth of which is affected by rice blast disease, caused by the fungal pathogen Magnaporthe oryzae. As climate change increases the diversity of pathogens, the disease resistance genes (R genes) in plants must be identified. The major blast-resistance genes have been identified in indica rice varieties; therefore, japonica rice varieties with R genes now need to be identified. Because leucine-rich repeat (LRR) domain proteins possess R-gene properties, we used bioinformatics analysis to identify the rice candidate LRR domain receptor-like proteins (OsLRR-RLPs). OsLRR-RLP2, which contains six LRR domains, showed differences in the DNA sequence, containing 43 single-nucleotide polymorphisms (SNPs) in indica and japonica subpopulations. The results of the M. oryzae inoculation analysis indicated that indica varieties with partial deletion of OsLRR-RLP2 showed susceptibility, whereas japonica varieties with intact OsLRR-RLP2 showed resistance. The oslrr-rlp2 mutant, generated using clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9), showed increased pathogen susceptibility, whereas plants overexpressing this gene showed pathogen resistance. These results indicate that OsLRR-RLP2 confers resistance to rice, and OsLRR-RLP2 may be useful for breeding resistant cultivars. Full article
(This article belongs to the Special Issue Deciphering the Molecular Mechanisms That Regulate Rice Plant Disease and Immunity)
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17 pages, 5286 KiB  
Article
OsACA9, an Autoinhibited Ca2+-ATPase, Synergically Regulates Disease Resistance and Leaf Senescence in Rice
by Xinyu Wang, Ziyao Wang, Yiduo Lu, Jiani Huang, Zhuoer Hu, Junlei Lou, Xinyue Fan, Zhimin Gu, Pengcheng Liu, Bojun Ma and Xifeng Chen
Int. J. Mol. Sci. 2024, 25(3), 1874; https://doi.org/10.3390/ijms25031874 - 03 Feb 2024
Viewed by 1008
Abstract
Calcium (Ca2+) is a versatile intracellular second messenger that regulates several signaling pathways involved in growth, development, stress tolerance, and immune response in plants. Autoinhibited Ca2+-ATPases (ACAs) play an important role in the regulation of cellular Ca2+ homeostasis. [...] Read more.
Calcium (Ca2+) is a versatile intracellular second messenger that regulates several signaling pathways involved in growth, development, stress tolerance, and immune response in plants. Autoinhibited Ca2+-ATPases (ACAs) play an important role in the regulation of cellular Ca2+ homeostasis. Here, we systematically analyzed the putative OsACA family members in rice, and according to the phylogenetic tree of OsACAs, OsACA9 was clustered into a separated branch in which its homologous gene in Arabidopsis thaliana was reported to be involved in defense response. When the OsACA9 gene was knocked out by CRISPR/Cas9, significant accumulation of reactive oxygen species (ROS) was detected in the mutant lines. Meanwhile, the OsACA9 knock out lines showed enhanced disease resistance to both rice bacterial blight (BB) and bacterial leaf streak (BLS). In addition, compared to the wild-type (WT), the mutant lines displayed an early leaf senescence phenotype, and the agronomy traits of their plant height, panicle length, and grain yield were significantly decreased. Transcriptome analysis by RNA-Seq showed that the differentially expressed genes (DEGs) between WT and the Osaca9 mutant were mainly enriched in basal immune pathways and antibacterial metabolite synthesis pathways. Among them, multiple genes related to rice disease resistance, receptor-like cytoplasmic kinases (RLCKs) and cell wall-associated kinases (WAKs) genes were upregulated. Our results suggest that the Ca2+-ATPase OsACA9 may trigger oxidative burst in response to various pathogens and synergically regulate disease resistance and leaf senescence in rice. Full article
(This article belongs to the Special Issue Deciphering the Molecular Mechanisms That Regulate Rice Plant Disease and Immunity)
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