Rice水稻
Rice(英文缩写 RICE),ISSN 1939-8425,eISSN 1939-8433,中文译名:水稻 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-09-27 至 2026-09-27，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2021 | 5.638 | Q1 |
| 2022 | 5.500 | Q1 |
| 2023 | 4.800 | Q1 |
| 2024 | 5.000 | Q1 |
| 2025 | 5.800 | Q1 |
Rice 最新收录文献
-
1. OsMYBAS1 Coordinates ABA/JA Signaling and ROS Homeostasis for Seedling Cold Tolerance of Rice (Oryza sativa L.).
PMID:日期:2026-07-20Seedling cold stress is a major abiotic constraint to rice production, and mining elite cold-tolerant genes from wild rice represents a pivotal strategy to enhance cold tolerance in cultivated rice (Oryza sativa L.). Dongxiang wild rice (DXWR, Oryza rufipogon Griff.) is a valuable genetic resource with robust cold tolerance. However, the underlying molecular regulatory mechanisms remain poorly characterized, and the identification of its elite cold-tolerant genes is still limited. In this study, by integrating high-density gene chip, comparative transcriptomic and functional correlation analyses, we identified OsMYBAS1, an R2R3-MYB transcription factor, as a key regulator conferring cold tolerance of DXWR. The Osmybas1 mutants exhibited drastically reduced survival rate under cold stress, accompanied by excessive reactive oxygen species (ROS) accumulation and significant decreases in antioxidant enzyme activity. Comparative transcriptome analysis of the mutants identified 545 cold-induced differentially expressed genes. Functional enrichment analysis indicated that pathways involved in hormone metabolism and signaling were among the most significantly enriched categories, highlighting their key roles in the cold response. Further detection revealed that endogenous abscisic acid (ABA) and jasmonic acid (JA) levels were markedly down-regulated in Osmybas1 mutants after cold treatment, while exogenous ABA or methyl jasmonate (MeJA) application rescued the cold-sensitive phenotype and reversed the abnormal expression of cold-responsive genes. This study suggested that OsMYBAS1 positively regulated seedling cold tolerance by mediating the coordinated modulation of ABA/JA signaling and ROS homeostasis. These findings elucidated an important molecular mechanism underlying DXWR cold tolerance and provided a novel gene target and theoretical foundation for cold-tolerant rice molecular breeding.
-
2. OsPAL2;1 and OsPAL2;3 are Key Regulators of Phenolic Acid to Modulate Allelopathy and Rhizosphere Microbiome in Rice.
PMID:日期:2026-07-18Phenylalanine ammonia-lyase (PAL; EC 4.3.1.5) is encoded by a multigene family in rice (Oryza sativa L.), and its transcriptional abundance is tightly coupled with allelopathic potential. Rice chromosome 2 harbors a tandemly duplicated cluster of four OsPAL paralogs: OsPAL2;1, OsPAL2;2, OsPAL2;3, and OsPAL2;4. To dissect their precise roles in regulating allelopathy, this study generated independent overexpression lines for each OsPAL gene in both the allelopathic rice genotype 'PI312777' and the non-allelopathic cultivar 'Lemont'. Overexpression of individual OsPAL genes significantly enhanced the inhibitory effects of root exudates on barnyardgrass growth, with OsPAL2;1 and OsPAL2;3 exhibiting the most pronounced weed-suppressive phenotypes. Mechanistically, OsPAL overexpression drove distinct tissue-specific metabolic alterations: in transgenic 'PI312777', concentrations of protocatechuic acid, p-coumaric acid, ferulic acid, salicylic acid, and cinnamic acid significantly accumulated in both roots and leaves; conversely, 'Lemont' overexpression lines displayed selective increases in protocatechuic acid, p-hydroxybenzoic acid, and cinnamic acid. Beyond direct allelochemical mediation, OsPAL overexpression reshaped the rhizosphere microbiome. Transgenic 'PI312777' lines displayed reduced alpha diversity and species richness within the root-associated bacterial community. Most strikingly, OsPAL2;1 and OsPAL2;3 overexpression lines showed a marked enrichment of Flavisolibacter, Ohtaekwangia, Lysobacter, and Myxococcota. Collectively, our findings demonstrate that OsPAL2;1 and OsPAL2;3 emerge as prime candidates for engineering next-generation rice varieties with enhanced natural weed-suppressive capacity through integrated metabolic and microbiome engineering.
-
3. Multifaceted Effects of Starch Branching Enzyme and Soluble Starch Synthase Gene Editing in Rice with Different Wx Genotypes.
PMID:日期:2026-07-13Rice endosperm, the major edible portion of the grain, plays an important role in regulating blood glucose and preventing intestinal diseases by increasing its resistant starch (RS) content. Previous studies have shown that suppressing amylopectin biosynthesis via genome editing can increase RS content. However, the influence of different Waxy (Wx) allelic backgrounds on RS accumulation in edited lines has not been systematically evaluated. In this study, we used glutinous rice Yunan Heixiangnuo (HXN) with a nonfunctional wx allele and indica rice Yixiang 1B (YX1B) with a weak Wx allele as backgrounds. We simultaneously knocked out SSSIIIa, SBEI, SBEIIa, and SBEIIb using CRISPR/Cas9, and systematically analyzed changes in RS content, rice quality, and yield traits. The results showed that, in the HXN background, multigene knockout did not significantly alter amylose or RS content but largely maintained favorable eating quality. In contrast, in the YX1B background, quadruple-gene knockout lines exhibited an increase in amylose content from 17.7% to 53.7% and an increase in RS content to 2.48%, representing a 4.35-fold increase over the wild type, while gel consistency and seed-setting rate were significantly reduced. Scanning electron microscopy revealed that multigene knockout markedly remodeled starch granule structure, shifting from dense polygonal granules to loosely packed spherical particles and resulting in a floury endosperm. Collectively, enhancement of RS content through multigene editing was influenced by Wx gene function. Although the wx allele failed to increase RS content, it still participated in the regulation of grain quality and yield traits by modulating starch structure. This study provides a reference for breeding high-RS rice cultivars while balancing yield performance and eating quality.
-
4. A FtsH-Like Zinc Metalloprotease, OsFtsH1, Coordinates Chloroplast Development and Photosystem II Homeostasis in Rice.
PMID:日期:2026-07-11Chloroplast development is a fundamental process underlying photosynthesis and plant growth, yet its molecular regulatory mechanisms remain to be fully elucidated. In this study, we identified an albino rice mutant, which exhibits drastically reduced chlorophyll content and defective chloroplast ultrastructure. Through map-based cloning, coupled with CRISPR/Cas9-mediated gene editing and complementation assays, we verified that the target gene encodes a zinc metalloprotease of the FtsH protein family, OsFtsH1. The expression of OsFtsH1 is light-inducible, and its encoded protein localizes specifically to chloroplasts. RNA-sequencing (RNA-seq) analysis revealed broad differential expression of photosynthesis-related genes in osftsh1 mutants. qRT-PCR further demonstrated that plastid-encoded genes involved in chloroplast biogenesis are markedly downregulated at the transcriptional level. Functional assays indicated that OsFtsH1 sustains the homeostasis of D1, D2 and CP43, core proteins of the photosystem II (PSII), and collaboratively regulates chloroplast development through interactions with three key proteins: the chloroplast signaling protein OsCPL1, the PSII oxygen-evolving complex component OsPsbO, and the photosynthetic electron transport protein OsFd1. Additionally, the expression of OsFtsH1 is induced by indole-3-acetic acid (IAA) and abscisic acid (ABA), and its overexpression markedly enhances rice sensitivity to these two phytohormones. Collectively, our findings unravel the multifaceted and crucial functions of OsFtsH1 in orchestrating chloroplast development, photosynthetic machinery homeostasis, and stress response in rice.
-
5. Lhca4 Maintaining Photochemical Efficiency and ROS Homeostasis Contributes to Rice Salt Tolerance.
PMID:日期:2026-07-08Rice (Oryza sativa L.), a staple food for more than half of the global population, is moderately salt-sensitive and increasingly threatened by soil salinization. Deciphering the genetic mechanisms of salt tolerance (ST) is pivotal for accelerating genetic improvement of ST by rice molecular breeding and safeguarding global food security. A quantitative trait locus for rice ST, qRLS8, was mapped using a BCF backcross introgression line population derived from the cross between Minghui 63 and 02428. Combined with transcriptome analysis, Lhca4, encoding a subunit of the light-harvesting complex, was identified as the candidate gene of qRLS8. Lhca4 positively regulates rice ST at seedling stage based on the phenotypic verification using knockout and overexpression transgenic lines of Lhca4. Overexpression of Lhca4 increased the activities of superoxide dismutase and peroxidase, and decreased the accumulation of HO and O, holding a high photochemical efficiency under salt stress conditions. In contrast, knockout of Lhca4 increased accumulation of reactive oxygen species (ROS) in rice, resulting in disruption of the chloroplast lamellae and a decrease in photosynthetic efficiency. Transcriptome analysis revealed that Lhca4 mediated salt stress response pathway involved in metabolic regulation, enzyme activity regulation, and antioxidant regulation. Lhca4 confers rice ST by preserving chloroplast integrity, maintaining photochemical efficiency, and systemically modulating ROS homeostasis through enhancing antioxidant defense system. These findings provide a valuable gene target for the development of salt-tolerant rice varieties without compromising photosynthetic capacity.
-
6. The Rice-Xoc Arms Race: Molecular Mechanisms and Genomic Strategies Against Bacterial Leaf Streak.
PMID:日期:2026-07-08Rice is a staple crop, serving as the primary food source for over half of the world's population, but its productivity is limited by several diseases, necessitating the development of sustainable, resistant varieties. However, breeding for pathogen-resistant rice varieties is challenged by the quantitative nature of resistance, and the accelerated evolution of pathogens under climate change. The economically important bacterial rice pathogens, bacterial leaf blight and bacterial leaf streak, are caused by different pathovars of the same species (Xanthomonas oryzae) which share significant genomic similarities, yet they have different infection mechanisms and cause distinct symptoms. As bacterial leaf streak resistance is largely governed by quantitative trait loci (QTLs), this review provides an updated synthesis of QTLs and explores the molecular landscape of Transcription Activator-Like Effectors (TALEs)-host interactions, specifically how bacteria recruits host susceptibility (S) genes to facilitate infection, virulence targets in host gene promoters, and defense-related genes that can facilitate the production of rice varieties with durable resistance to bacterial leaf streak. In addition, this review highlights the progress in bacterial leaf streak resistance breeding programs through the application of marker-assisted selection and the application of gene-editing tools. Collectively, it concludes that future breeding programs will integrate advanced genetic and computational tools to develop rice varieties with durable and broad-spectrum resistance to bacterial leaf streak and other pathogens.
-
7. Genes, Putative Long-Lived mRNAs and Pathways Underlying Genotypic Differences in Rice Seed Storability and Seed Dormancy.
PMID:日期:2026-07-07Weak seed dormancy (SD) in rice tends to induce pre-harvest sprouting and impair seed quality and yield pre-harvest, whereas poor seed storability (SS) reduces these traits during post-harvest storage. Although multiple genes associated with these two traits have been cloned, the molecular genetic regulatory relationship between them remains unclear. To dissect the SD-SS correlation, this study compared SD and SS characteristic of 9311 (Xian/Indica) and Nipponbare (NIP, Geng/Japonica) via transcriptomic and metabolomic analyses. Results showed that NIP had strong SD but poor SS, while 9311 exhibited the opposite. Differentially accumulated metabolite (DAM) analysis showed 42 DAMs specific to dormant seeds, 141 to stored seeds, and 93 common to both. Transcriptomic analysis identified 1,334 (13.0%) differentially expressed genes (DEGs) and 11 metabolic pathways (28.9%) commonly associated with SD and SS, including key ones like hormone signaling and secondary metabolism. The biological functions of two core DEGs were further validated using CRISPR/Cas9 technology, among which OsGA2ox8 regulates SD and OsLEA5 (Late embryogenesis abundant protein) affects SS. Validation of DEGs in the gibberellin (GA) pathway demonstrated that knockout of OsGA2ox8 (gibberellin 2-oxidase) significantly reduced SD, whereas its overexpression markedly enhanced SD, confirming the core regulatory role of OsGA2ox8 in SD. Haplotype analysis in natural populations showed that Haplotype 1 of OsGA2ox8 was dominant in Xian subspecies, while Haplotype 2 prevailed in Geng subspecies. Additionally, the analysis of long-lived mRNAs (LLRs) identified 2,938 putative LLRs, of which 309 were associated with both SD and SS. Functional validation of a late embryogenesis abundant protein (OsLEA5) showed that knockout of this gene in NIP significantly decreased SS. This study preliminarily elucidated the differentiation mechanisms of SD and SS, and provided potential targets for breeding rice varieties with enhanced pre-harvest sprouting and superior SS.
-
8. Correction: Developmental Dynamics of Intercalary Meristem and Pith Cavity in Rice Stems.
PMID:日期:2026-07-06该文献暂无摘要。
-
9. Structural Volume Composition of Internodes is a Key Morphological Factor Contributing to Culm Non-structural Carbohydrate Accumulation in Rice.
PMID:日期:2026-07-04Non-structural carbohydrates (NSC) stored in the stem play a crucial role in supporting yield formation in rice. However, internode morphological factors associated with NSC accumulation remain unclear. This study aimed to clarify the relationship between internode morphology and NSC accumulation and to identify a robust morphological indicator for evaluating NSC accumulation capacity. Two years of field experiments were conducted using multiple cultivars. The NSC content was quantified for individual internodes and at the whole-plant culm level, and its relationships with internode morphological traits were analyzed. Since the upper internodes (UIN; first and second internodes) and lower internodes (LIN; third and subsequent internodes) exhibited contrasting roles in NSC accumulation, a novel index was introduced, the volume composition ratio (VCR) of UIN/LIN, which represents their relative volumetric contributions within a culm. The VCR of UIN/LIN showed the strongest correlation with culm NSC and high reproducibility across years, outperforming simple morphological traits. In addition, plant growth regulator treatments that altered VCR were accompanied by changes in culm NSC accumulation. Accordingly, the VCR of UIN/LIN serves as a robust morphological indicator of culm NSC accumulation capacity, providing a practical framework for improving stem carbohydrate storage capacity in rice.
-
10. Natural Variation and Expression of OsCFF1 Affect the Formation of Rice Chalkiness.
PMID:日期:2026-07-02Chalkiness, as a major undesired-index for rice quality evaluation, is the opaque/white structure in rice endosperm, and determines the rice grade and price to a large extent. Reducing chalkiness remains one of the most important goals for breeders and producers. In this study, we identified a rice chalkiness formation-related gene (OsCFF1) that encodes a glycosyltransferase (GT). Through screening of OsCFF1 alleles in 60 rice cultivars, four genotypes were identified, including WT and three natural variations. Cultivars with natural variations that cause the function loss of OsCFF1 usually produce fewer chalky grains. Higher OsCFF1 expression during the grain-filling period is usually associated with a higher degree of chalkiness. Notably, the chalkiness in gene-edited rice kernels was decreased by more than 90% after knocking out OsCFF1 through CRISPR/Cas9, indicating a quality reversal from inferior rice with high chalkiness to superior rice with very little chalkiness. We also found that OsCFF1 might catalyze the glycosylation of GA and the corresponding mechanism requires in-depth exploration. In summary, OsCFF1 is a key factor controlling the formation of rice chalkiness and demonstrates enormous potential for application in high-quality rice breeding.