Rice Science最新文献

{"title":"Optimization and Establishment of Soil Health Evaluation Framework in Black Soil Region Based on Multifunctionality: A Case Study of Fangzheng County, Heilongjiang Province, China","authors":"Zhuoting HE, Yu JIANG, Raza ALI, Qingxu MA, Xiao LI, Haimin KONG, Yali KONG, Lianfeng ZHU, Chunquan ZHU, Wenhao TIAN, Lianghuan WU, Junhua ZHANG, Qianyu JIN, Chao MA, Xiaochuang CAO","doi":"10.1016/j.rsci.2026.03.008","DOIUrl":"10.1016/j.rsci.2026.03.008","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 420-424"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Induction Effect of Chelerythrine on Apoptosis of Sf9 Cells: A Preliminary Investigation Based on Cell Morphology and Activity","authors":"Qinghui WEI, Zhenghao SHI, Zhiyong LI, Yaqing PAN, Weifeng SONG, Chunlai LIU","doi":"10.1016/j.rsci.2026.04.012","DOIUrl":"10.1016/j.rsci.2026.04.012","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 435-437"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing Green-Leaf Black Rice Germplasm by Knockout of OsC1 Gene","authors":"Fuhao LI, Liyun GE, Peina WANG, Wenyu SUN, Nuo GONG, Yingchun HAN, Chunbo MIAO, Zhen CHEN, Yanxiu DU, Hongzheng SUN, Junzhou LI","doi":"10.1016/j.rsci.2026.03.004","DOIUrl":"10.1016/j.rsci.2026.03.004","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 415-419"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyruvate Orthophosphate Dikinase B (PPDKB) Deficiency Impairs Starch Biosynthesis and Redirects Carbon Flux to Lipid and Amino Acid Synthesis in Rice","authors":"Bowen DENG,&nbsp;Yining YING,&nbsp;Jianming PAN,&nbsp;Tongrui ZHANG,&nbsp;Feifei XU,&nbsp;Jinsong BAO","doi":"10.1016/j.rsci.2026.04.010","DOIUrl":"10.1016/j.rsci.2026.04.010","url":null,"abstract":"<div><div>The central endosperm of a chalky rice mutant <em>JM03</em>, which was isolated from a ⁶⁰Co-irradiated mutant population of the <em>indica</em> rice variety 93-11, contains numerous small, irregularly shaped starch granules with looser packing than those of the wild type (WT). <em>JM03</em> starch showed lower gelatinization onset and peak temperatures, reduced pasting viscosities, and consistently decreased dynamic rheological parameters compared with WT. Through bulked segregant analysis sequencing (BSA-seq), complementation tests, and immunoblot analysis, we identified <em>PPDKB</em> (<em>Os05g0405000</em>) as the causal gene underlying the <em>JM03</em> phenotype. Multi-omics analysis of developing endosperm at 15 d after flowering revealed that PPDKB deficiency profoundly redirected central carbon and amino acid metabolism. On the one hand, impaired phosphoenolpyruvate regeneration disrupted the gluconeogenic conversion of hexoses into starch biosynthesis precursors, consequently suppressing starch accumulation through downregulation of all starch synthesis-related genes and enzymes. The impaired starch synthesis diminished sucrose unloading capacity due to reduced expression of sucrose synthase, triggering accumulation of sucrose and other soluble sugars. On the other hand, excess pyruvate diverted metabolic flux towards acetyl-CoA production, stimulating tricarboxylic acid (TCA) cycle activity and enhancing lipid biosynthesis. Meanwhile, amino acid synthesis was enhanced due to increased levels of multiple precursors and genes/enzymes involved in this process. The reduction in starch accumulation, combined with the downregulation of key grain weight regulators, such as mitogen-activated protein kinase 6 and BAHD acyltransferase-like protein, collectively led to a significant reduction in grain weight in <em>JM03</em>. Taken together, our study reveals a functional cross-talk between starch, soluble sugars, protein, and lipids in rice endosperm during seed development in <em>JM03</em>, which provides important germplasm resources and a theoretical basis for genetic improvement of rice yield and quality.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 514-530"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chloroplast-Derived Reactive Oxygen Species Dynamics Mediate Jasmonic Acid-Induced Drought Tolerance in Rice","authors":"Jiwoong JUNG,&nbsp;Deok Hyun SEO,&nbsp;Youngdae YOON,&nbsp;Geupil JANG","doi":"10.1016/j.rsci.2026.03.005","DOIUrl":"10.1016/j.rsci.2026.03.005","url":null,"abstract":"<div><div>Beyond their central role in photosynthesis and plant productivity, chloroplasts are emerging as key regulators of plant responses and tolerance to abiotic stress. However, the molecular mechanisms linking chloroplastic reactive oxygen species (ROS) metabolism to stress adaptation remain poorly understood. Here, we show that knockout of <em>OsJAZ9</em>, a repressor of jasmonic acid (JA) signaling, enhances JA response and drought tolerance in rice by suppressing cellular ROS accumulation. Time-lapse visualization of subcellular ROS dynamics revealed that stress-induced ROS accumulation was initiated in chloroplasts and subsequently propagated to the cytoplasm. Notably, loss of <em>OsJAZ9</em> markedly suppressed chloroplastic ROS accumulation, resulting in reduced cellular ROS levels under stress conditions. Consistently, either JA treatment or overexpression of the JA-responsive chloroplastic ROS scavenger <em>OsFeSOD3</em> was sufficient to attenuate chloroplastic ROS accumulation and enhance drought tolerance in rice. Furthermore, two-year agronomic field analyses showed that <em>osjaz9</em> knockout rice exhibited improved grain yield, particularly under drought stress conditions. Together, our findings identify chloroplast-derived ROS dynamics as a pivotal molecular link between JA signaling and rice stress tolerance and highlight <em>OsJAZ9</em> as a promising molecular target for developing high-yielding, stress-tolerant rice cultivars.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 531-544"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances in Synthesis Regulation, Quality Effect, and Genetic Improvement Strategies of Rice Grain Lipids","authors":"Guohui LI,&nbsp;Qiuqian HU,&nbsp;Zhongyang HUO,&nbsp;Qigen DAI,&nbsp;Depeng WANG,&nbsp;Ke XU","doi":"10.1016/j.rsci.2026.02.007","DOIUrl":"10.1016/j.rsci.2026.02.007","url":null,"abstract":"<div><div>Rice grain lipids, though constituting a minor fraction of brown rice weight, exert a pivotal influence on grain quality, encompassing eating and cooking quality, nutritional value, and storage stability. Lipids are unevenly distributed within the caryopsis, predominantly localized in the embryo and aleurone layers, and consist of neutral triacylglycerols and polar glycerolipids with a characteristic fatty acid profile rich in oleic, linoleic, and palmitic acids. The application of advanced lipidomics and imaging techniques, such as liquid chromatography-mass spectrometry, matrix-assisted laser desorption/ionization mass spectrometry imaging, and nuclear magnetic resonance, has enabled detailed profiling and spatial visualization of lipid species, revealing their interactions with starch and proteins. Molecular studies have identified key genes (e.g., <em>OsFAD2</em>, <em>OsLOX</em>, <em>OsPLDα1</em>, <em>OsWRI1</em>), enzymes, and QTLs that govern lipid content, composition, and stability. Grain lipids determine eating quality by forming amylose-lipid complexes that influence texture, digestibility, and aroma, while their oxidative degradation, mediated by lipases and lipoxygenases, is a primary cause of quality deterioration during storage. Genetic strategies, including breeding for high-oleic acid, lipoxygenase-null, or high-lysophospholipid genotypes via genetic engineering, and biotechnological interventions are emerging as powerful tools to tailor lipid profiles for enhanced palatability, extended shelf life, and improved nutritional outcomes. Consequently, integrating lipid-centric approaches with traditional starch- and protein-focused breeding paradigms is essential for the holistic improvement of rice quality in the future.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 449-464"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trimethylsilyl Phenylacetate, a Metabolite from Stenotrophomonas geniculata WXY53, Inhibits Magnaporthe oryzae and Promotes Rice Growth","authors":"Xiyang WU,&nbsp;Tian YU,&nbsp;Min GUO,&nbsp;Deyong ZHANG,&nbsp;Yue CHEN","doi":"10.1016/j.rsci.2026.03.006","DOIUrl":"10.1016/j.rsci.2026.03.006","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 431-434"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular Mechanism in Regulation of Rice Tiller Development","authors":"Haifeng LI,&nbsp;Hua QIN","doi":"10.1016/j.rsci.2026.01.006","DOIUrl":"10.1016/j.rsci.2026.01.006","url":null,"abstract":"<div><div>Rice tillers are specialized grain-bearing branches originating from axillary buds generated at the basal internodes. Tiller number and tiller angle are two key components of rice architecture and important agronomic traits that determine plant density and panicle number, and are therefore tightly associated with grain yield. It is an important topic to elucidate the underlying mechanism in regulation of tiller development. Classical genes, such as <em>MONOCULM 1</em> (<em>MOC1</em>), <em>IDEAL PLANT ARCHITECTURE1</em> (<em>IPA1</em>), <em>PROSTRATE GROWTH1</em> (<em>PROG1</em>), and <em>LAZY1</em>, have been reported to regulate tiller number or tiller angle. In addition to the genetic basis, environmental factors, such as fertilizer application and gravity, and endogenous phytohormones, such as auxin and strigolactones, also affect tiller development. With the emergence and development of gene editing technology, together with genome-wide association studies and other new technologies, much progress has recently been gained including the cloning of <em>NITROGEN-MEDIATED TILLER GROWTH RESPONSE 5</em> (<em>NGR5</em>), <em>TEOSINTE BRANCHED 1</em>/<em>CYCLOIDEA</em>/ <em>PROLIFERATING CELL FACTOR 19</em> (<em>OsTCP19</em>), and <em>LAZY2</em> to <em>LAZY6</em>; and the identification of regulatory roles of strigolactones and root microbiota in modulating tiller number. Especially, functional characterization of <em>NGR5</em> and <em>OsTCP19</em> revealed the mechanism of nitrogen-mediated regulation of tiller number. These advances not only shed light on the mechanism modulating tillering development, but also provide gene resources for crop improvement. This review summarizes in-depth the mechanisms and factors regulating rice tiller development, with a focus on classical genes and major advances, while also discussing the challenges and opportunities, thereby providing a comprehensive overview of the underlying mechanisms modulating tiller number and angle in rice.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 485-498"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MoWhi2 Participates in Mitophagy and Pathogenesis by Modulating MoAti1 Protein Level in Magnaporthe Oryzae","authors":"Ying ZHANG,&nbsp;Huanbin SHI,&nbsp;Shuai MENG,&nbsp;Hui WEN,&nbsp;Ya CHEN,&nbsp;Li LIU,&nbsp;Yanjun KOU","doi":"10.1016/j.rsci.2026.03.009","DOIUrl":"10.1016/j.rsci.2026.03.009","url":null,"abstract":"<div><div>Rice blast caused by the fungus <em>Magnaporthe oryzae</em> is one of the most devastating diseases affecting rice production. It was previously demonstrated that <em>MoWHI2</em> is indispensable for mitophagy and full virulence in <em>M. oryzae</em>, yet the molecular mechanisms underlying its control of mitophagy remained unresolved. In this study, we found that MoWhi2 interacts with MoAti1, a SUN family protein that mediates mitophagy by recruiting the autophagy-associated protein MoAtg8. Phenotypic analysis showed that the defects of the Δ<em>Mowhi2</em>/Δ<em>Moati1</em> mutant in growth, conidiation, and pathogenicity were comparable to those of Δ<em>Moati1</em>, but more severe than those of Δ<em>Mowhi2</em>. Furthermore, compared with the wild type, the Δ<em>Mowhi2</em>/Δ<em>Moati1</em> mutant exhibited a lower mitophagy level similar to that of the single deletion mutants Δ<em>Mowhi2</em> or Δ<em>Moati1</em>. In addition, deletion of <em>MoWHI2</em> resulted in a decreased protein level of MoAti1, suggesting that MoWhi2 might regulate mitophagy by modulating the protein levels of MoAti1. Due to the absence of MoWhi2 orthologues in both rice and humans, we employed host-induced gene silencing (HIGS) targeting <em>MoWHI2</em> in rice plants; the resultant transgenic rice lines displayed resistance to blast without agronomic penalties. Collectively, our data established that MoWhi2 regulates mitophagy and pathogenicity of <em>M. oryzae</em> by interacting with MoAti1, and can serve as a target for rice blast control strategies.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 545-558"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated Lipidomic and Transcriptomic Analysis Reveals Lipid-Mediated Regulatory Networks Underlying Male Sterility in Rice","authors":"Cong HAN,&nbsp;Rong MIAO,&nbsp;Yang SUN,&nbsp;Shenlong JIANG,&nbsp;Peng ZHANG,&nbsp;Guocheng HU,&nbsp;Qing YAN,&nbsp;Saleem MUNEEBA,&nbsp;Songping HU,&nbsp;Zhengzheng ZHONG,&nbsp;Hanhua TONG","doi":"10.1016/j.rsci.2026.05.007","DOIUrl":"10.1016/j.rsci.2026.05.007","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 4","pages":"Pages 425-430"},"PeriodicalIF":7.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148718700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}