Article
Agronomy
Na Li, Zeyu Yang, Juan Li, Wenya Xie, Xiaofeng Qin, Yuanrong Kang, Qinglu Zhang, Xianghua Li, Jinghua Xiao, Haigang Ma, Shiping Wang
Summary: In this study, OsVQ14 and OsVQ32 were identified as substrates of the OsMPKK6-OsMPK4 cascade to enhance rice resistance to Xoo, providing a more complete signal transduction pathway for induced defenses in rice.
Article
Plant Sciences
Peilun Wang, Juan Li, Zhenzhen Zhang, Qinglu Zhang, Xianghua Li, Jinghua Xiao, Haigang Ma, Shiping Wang
Summary: The knockout of OsVQ1 in rice enhances disease resistance and delays flowering by releasing OsMPK6 for activation, promoting H2O2 accumulation, and repressing the expression of flowering-promoting genes. This suggests that the OsVQ1-OsMPK6 module plays a crucial role in rice immunity and flowering.
PLANT CELL REPORTS
(2021)
Article
Plant Sciences
German Dario Ahumada, Eva Maria Gomez-alvarez, Matteo Dell'Acqua, Iris Bertani, Vittorio Venturi, Pierdomenico Perata, Chiara Pucciariello
Summary: Flooding caused by heavy rainfall and poor soil drainage can negatively affect plant germination and seedling establishment. Rice, however, has unique strategies, such as fast elongation of coleoptiles, to cope with flooding. Microorganisms can contribute to rice health by promoting growth and protecting against stress. A metagenomic analysis of the microbiome during rice germination under submergence revealed distinct compositions of microbiota in different rice varieties, with Arborio seeds showing the development of long coleoptiles. The isolated bacteria were found to have starch hydrolyzing and indole-related compound production abilities under hypoxia. Inoculating these bacteria into submerged rice seeds showed a genotype-dependent response. These findings highlight the importance of endophytic bacteria in promoting rice seedling establishment during flooding.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Microbiology
Jingjing Chang, Shaohua Shi, Lei Tian, Marcio F. A. Leite, Chunling Chang, Li Ji, Lina Ma, Chunjie Tian, Eiko E. Kuramae
Summary: The study found that the bacterial and fungal alpha-diversities of the hybrid F1 and self-crossing generations (F2, F3, F4) were closer to one of the two parental lines, indicating a role of the parental line in the diversity of the rhizosphere microbial community assembly. Self-crossing from F1 to F4 led to weak co-variation of the bacterial and fungal communities and distinct rhizosphere microbiomes.
Article
Biochemistry & Molecular Biology
Yongbo Hong, Hui Wang, Yizhou Gao, Yan Bi, Xiaohui Xiong, Yuqing Yan, Jiajing Wang, Dayong Li, Fengming Song
Summary: OsBIERF3 gene contributes positively to immunity and resistance against pathogens in rice, while negatively regulates cold stress tolerance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Noor Amni Mohamed, Nik Muhammad Faris Nazmie Che Ngah, Azlan Abas, Noraini Talip, Murni Nazira Sarian, Hamizah Shahirah Hamezah, Sarahani Harun, Hamidun Bunawan
Summary: Rice tungro disease (RTD), caused by Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV), is a significant viral disease in Asian countries. This study used bioinformatics tools to predict several potential miRNA sequences that can target RTBV and RTSV, providing valuable information for the development of resistant rice varieties.
Article
Environmental Sciences
Lu Huang, Xun Wang, Yihan Chi, Linan Huang, Wai Chin Li, Zhihong Ye
Summary: This study investigated the interplay between rice plants and rhizosphere microbes in the uptake of Cd and As, highlighting the potential of regulating the composition of the rhizosphere bacterial community to reduce Cd and As accumulation in rice grain and increase grain yield.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Xudong Ma, Yanfang Gu, Chanjuan Liang
Summary: This study found that rice showed higher tolerance to MCs stress compared to cucumber, possibly by regulating PPs activity. Among PPs, PP2A activity was more sensitive to MCs, and rice had higher expression levels of PP2A and less decrease in PP2A activity compared to cucumber leaves.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Plant Sciences
Juan Li, Cheng-Ruei Lee
Summary: This study investigates the repulsion of coexistence between gene presence-absence variations (PAVs) and identifies negative interactions between genes in two subspecies of Oryza sativa. The incompatible PAVs are enriched in defense response and protein phosphorylation functional groups, suggesting a role in plant immunity. Furthermore, the interactions are often between older defense-related genes and younger genes with diverse functions.
Article
Plant Sciences
Liping Wang, Jingye Fu, Qinqin Shen, Qiang Wang
Summary: Phytoalexin is the main chemical weapon in plants to defend against pathogens. A transcription factor, OsWRKY10, has been identified to positively regulate rice diterpenoid phytoalexin biosynthesis, enhancing resistance to rice blast. OsWRKY10 directly binds to the promoters of rice diterpenoid phytoalexin biosynthesis genes, regulating gene expression.
Article
Plant Sciences
Chuanliang Chu, Renyan Huang, Liping Liu, Guilin Tang, Jinghua Xiao, Heejin Yoo, Meng Yuan
Summary: The OsNRAMP1 gene plays an important role in regulating metal ion and reactive oxygen species homeostasis in rice. Removal of this gene leads to enhanced broad-spectrum disease resistance and safety against toxic heavy metals.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Food Science & Technology
Xiao-Yu Ma, Xian-Xin Chen, Ming-Yang Ma, Yu Xu, Xiao-Meng Wu, Guang-Qing Mu, Xue-Mei Zhu
Summary: The study successfully increased the solubility of lutein by constructing encapsulated nanoparticles using rice protein hydrolysates as nanocarriers and investigated the interaction mechanism between lutein and rice protein. The experiments confirmed the success of the green and safe lutein-RPH process, providing important information for the future application of lutein in nutritional fortified foods, supplements, and drug delivery.
Article
Multidisciplinary Sciences
Conghao Xu, Yifeng Xu, Zhengji Wang, Xiaoyu Zhang, Yuying Wu, Xinyan Lu, Hongwei Sun, Lei Wang, Qinglu Zhang, Qinghua Zhang, Xianghua Li, Jinghua Xiao, Xu Li, Mingfu Zhao, Yidan Ouyang, Xianbo Huang, Qifa Zhang
Summary: Male sterility in plants is important for germplasm innovation and hybrid crop production. In this study, a rare genetic resource for dominant genic male sterility in rice, called Sanming Dominant Genic Male Sterility, was characterized and the gene SDGMS was identified. The activation of SDGMS by the movement of a transposon leads to abnormal programmed cell death of tapetal cells and triggers transcription reprogramming of genes responsive to biotic stress, resulting in male sterility. This study demonstrates the importance of ectopic gene activation in phenotypic diversity and practical utility.
NATIONAL SCIENCE REVIEW
(2023)
Article
Biochemistry & Molecular Biology
Min Jiang, Ning Yu, Yingxin Zhang, Lin Liu, Zhi Li, Chen Wang, Shihua Cheng, Liyong Cao, Qunen Liu
Summary: Lesion mimic mutants (LMMs) are ideal materials for studying cell death and resistance mechanisms. In this study, a novel rice LMM, g380, was identified and characterized. The g380 mutant showed a spontaneous hypersensitive response-like cell death phenotype, increased ROS accumulation, upregulated expression of pathogenesis-related genes, and enhanced resistance to Xanthomonas oryzae pv. oryzae (Xoo). The study also revealed a 184,916 bp deletion on chromosome 2 in g380 that overlaps with the diterpenoid biosynthetic gene cluster, resulting in decreased diterpenoid content and increased lignin accumulation. RNA-seq analysis identified 590 significantly differentially expressed genes (DEG) between g380 and wild-type 9311, with 585 genes upregulated in g380. Upregulated genes in g380 were mainly enriched in the monolignol biosynthesis branches, the plant-pathogen interaction pathway, and the phytoalexin-specialized diterpenoid biosynthesis pathway.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Xiaosheng Zhao, Tiancheng Qiu, Huijing Feng, Changfa Yin, Xunmei Zheng, Jun Yang, You-Liang Peng, Wensheng Zhao
Summary: The research identified OsGRDP1 as a critical feedback regulator in plant cell death and disease resistance, showing that its overexpression or RNAi result in lesion mimic phenotype, disrupting the intact OsGRDP1 and forming lesions. OsGRDP1 interacts with aspartic proteinase OsAP25, affecting proteinase activity and participating in mechanisms of cell death and disease resistance.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)