{"title":"QTL-Seq Identifies Genomic Regions Associated with Resistance to Bipolaris oryzae and Their Association with Defense Related Enzyme Activity in Rice","authors":"Jagjeet Singh Lore , Sanjay Kumar , Dharminder Bhatia , Mandeep Singh Hunjan , Rishabh Maheshwari , Dayananda Veeriah Patil , Jyoti Jain","doi":"10.1016/j.rsci.2025.08.012","DOIUrl":"10.1016/j.rsci.2025.08.012","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 15-20"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-30DOI: 10.1016/j.rsci.2025.10.007
Shaojie HUO , Jiaqi LIN , Yuxuan SUN , Dianxing WU , Xiaoli SHU , Yin WANG
{"title":"Influences of Milling Degree on Zinc Bioavailability in Rice Grains Varied in Zinc and Phytic Acid Levels","authors":"Shaojie HUO , Jiaqi LIN , Yuxuan SUN , Dianxing WU , Xiaoli SHU , Yin WANG","doi":"10.1016/j.rsci.2025.10.007","DOIUrl":"10.1016/j.rsci.2025.10.007","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 25-29"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-09-04DOI: 10.1016/j.rsci.2025.08.008
Shuaizu AN , Jun LÜ , Zemin MA , Xuanlin GAO , Biaoming ZHANG , Pingfang YANG , Yinggen KE
As sessile organisms, plants must adapt various stresses. Accordingly, they have evolved several plant-specific growth and developmental processes. WRKY53 is a member of the WRKY transcription factor family, which plays a crucial role in rice growth and development, stress response, and hormone signal transduction. This review discusses the role of WRKY53 in stress response, focusing on its functions in cold tolerance, salt tolerance, disease resistance, and pest defense, and explores its role in regulating rice leaf senescence and seed germination. This article also proposes future research directions, including functional genomics studies, protein interaction network analyses, hormone signal transduction pathways, genetic improvement strategies, applications of gene editing technologies, molecular basis of stress responses, cross- species functional conservation, and bioinformatics and comparative genomics research. This review highlights the importance of WRKY53 in rice biology and provides new perspectives and strategies for future research and genetic improvement of rice.
{"title":"WRKY53: A Key Player in Stress Responses and Growth Regulation in Rice","authors":"Shuaizu AN , Jun LÜ , Zemin MA , Xuanlin GAO , Biaoming ZHANG , Pingfang YANG , Yinggen KE","doi":"10.1016/j.rsci.2025.08.008","DOIUrl":"10.1016/j.rsci.2025.08.008","url":null,"abstract":"<div><div>As sessile organisms, plants must adapt various stresses. Accordingly, they have evolved several plant-specific growth and developmental processes. WRKY53 is a member of the WRKY transcription factor family, which plays a crucial role in rice growth and development, stress response, and hormone signal transduction. This review discusses the role of WRKY53 in stress response, focusing on its functions in cold tolerance, salt tolerance, disease resistance, and pest defense, and explores its role in regulating rice leaf senescence and seed germination. This article also proposes future research directions, including functional genomics studies, protein interaction network analyses, hormone signal transduction pathways, genetic improvement strategies, applications of gene editing technologies, molecular basis of stress responses, cross- species functional conservation, and bioinformatics and comparative genomics research. This review highlights the importance of WRKY53 in rice biology and provides new perspectives and strategies for future research and genetic improvement of rice.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 30-38"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clarifying the photosynthetic and population characteristics of conventional japonica rice at different yield levels is crucial for boosting yield and ensuring food security. Therefore, a two-year field trial with two conventional japonica varieties was conducted at four planting densities: 16 cm × 30 cm (D1), 14 cm × 30 cm (D2), 12 cm × 30 cm (D3), and 10 cm × 30 cm (D4). This study aimed to investigate how photosynthetic and population characteristics influence grain yield under varying planting densities. The results indicated that higher yields were primarily driven by increased grain weight and seed-setting rate (with a 9.68%‒11.40% higher single panicle weight), supported by optimized dry matter translocation and source-sink relationships. Elevated planting density (D2‒D4) enhanced panicle number and total spikelet number (by 3.91%‒15.00%) but reduced the number of spikelets per panicle, 1000-grain weight, and photosynthetic efficiency due to mutual shading. Despite these trade-offs, yield increased by 4.10%‒12.42% under higher densities. The use of planting density D4 in japonica rice cultivation contributed to maximize yield. These findings provide important theoretical insights and practical significance for increasing the yield of conventional japonica rice and ensuring food security.
阐明不同产量水平下常规粳稻的光合特性和种群特征，对提高产量和保障粮食安全至关重要。为此，以2个粳稻品种为研究对象，以16 cm × 30 cm （D1）、14 cm × 30 cm （D2）、12 cm × 30 cm （D3）和10 cm × 30 cm (D4) 4种种植密度进行了为期2年的田间试验。本研究旨在探讨不同种植密度下光合特性和群体特性对籽粒产量的影响。结果表明，增产主要是由于籽粒重和结实率的提高（单穗重提高9.68% ~ 11.40%），并有优化的干物质转运和源库关系的支持。增加种植密度（d2 ~ d4）可提高穗数和总粒数（3.91% ~ 15.00%），但由于相互遮荫，降低了每穗粒数、千粒重和光合效率。尽管存在这些权衡，但在较高的密度下，产量增加了4.10%-12.42%。种植密度D4在粳稻栽培中的应用有助于产量最大化。这些发现对提高传统粳稻产量、保障粮食安全具有重要的理论见解和现实意义。
{"title":"Enlarged Sink Capacity and Optimized Population Physiological Characteristics are Key to High Yield in Conventional Japonica Rice","authors":"Zhang Haipeng , Mi Kailiang , Chen Ting, Zhang Muyan, Xu Fangfu, Zhang Hongcheng","doi":"10.1016/j.rsci.2025.10.004","DOIUrl":"10.1016/j.rsci.2025.10.004","url":null,"abstract":"<div><div>Clarifying the photosynthetic and population characteristics of conventional <em>japonica</em> rice at different yield levels is crucial for boosting yield and ensuring food security. Therefore, a two-year field trial with two conventional <em>japonica</em> varieties was conducted at four planting densities: 16 cm × 30 cm (D1), 14 cm × 30 cm (D2), 12 cm × 30 cm (D3), and 10 cm × 30 cm (D4). This study aimed to investigate how photosynthetic and population characteristics influence grain yield under varying planting densities. The results indicated that higher yields were primarily driven by increased grain weight and seed-setting rate (with a 9.68%‒11.40% higher single panicle weight), supported by optimized dry matter translocation and source-sink relationships. Elevated planting density (D2‒D4) enhanced panicle number and total spikelet number (by 3.91%‒15.00%) but reduced the number of spikelets per panicle, 1000-grain weight, and photosynthetic efficiency due to mutual shading. Despite these trade-offs, yield increased by 4.10%‒12.42% under higher densities. The use of planting density D4 in <em>japonica</em> rice cultivation contributed to maximize yield. These findings provide important theoretical insights and practical significance for increasing the yield of conventional <em>japonica</em> rice and ensuring food security.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 113-128"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-17DOI: 10.1016/j.rsci.2025.10.002
Zhou Jiaren , Song Qingfeng , Li Wanwan , Zhang Mengqi , Zhang Man , Zhu Xinguang , Wang Minjuan
Canopy photosynthesis, rather than leaf photosynthesis, is highly related to plant biomass and yield formation. Studying canopy photosynthesis and identifying the parameters that control it can help optimize agricultural management and achieve crop yield potential. Compared with traditional parameters, canopy occupation volume (COV) offers an integrative parameter on canopy architecture related to canopy photosynthetic rates. In this study, we developed a high-throughput method to derive COV for different rice varieties. We first used multi-perspective two-dimensional imaging to reconstruct three-dimensional point clouds of rice plants and developed a suite of pipelines to calculate plant height, leaf number, tiller number, and biomass, with R2 values of 91.8%, 95.9%, 82.3%, and 94.3%, respectively. We further employed point cloud data to reconstruct the surfaces of rice plants and construct a virtual canopy model of the rice population. Light distribution was simulated using a ray-tracing algorithm and canopy photosynthetic rates were simulated via photosynthetic rate-incident light intensity curve fitting. Furthermore, we systematically explored the relationships between canopy phenotypes and photosynthetic rates, and found that COV was the most effective predictor of canopy photosynthesis, achieving an R2 value of 92.1%. Adjustment in atmospheric transmittance showed that COV strongly correlated with canopy photosynthesis under different light conditions, with higher accuracy observed under diffuse light. Variations in planting density confirmed that this correlation remained strong at the community level. In summary, this study demonstrates that COV is closely linked to simulated canopy photosynthesis and the developed pipeline can support future agronomic and breeding research.
{"title":"High Throughput 3D Phenotyping of Canopy Occupation Volume as Major Predictor of Rice Canopy Photosynthesis","authors":"Zhou Jiaren , Song Qingfeng , Li Wanwan , Zhang Mengqi , Zhang Man , Zhu Xinguang , Wang Minjuan","doi":"10.1016/j.rsci.2025.10.002","DOIUrl":"10.1016/j.rsci.2025.10.002","url":null,"abstract":"<div><div>Canopy photosynthesis, rather than leaf photosynthesis, is highly related to plant biomass and yield formation. Studying canopy photosynthesis and identifying the parameters that control it can help optimize agricultural management and achieve crop yield potential. Compared with traditional parameters, canopy occupation volume (COV) offers an integrative parameter on canopy architecture related to canopy photosynthetic rates. In this study, we developed a high-throughput method to derive COV for different rice varieties. We first used multi-perspective two-dimensional imaging to reconstruct three-dimensional point clouds of rice plants and developed a suite of pipelines to calculate plant height, leaf number, tiller number, and biomass, with <em>R</em><sup>2</sup> values of 91.8%, 95.9%, 82.3%, and 94.3%, respectively. We further employed point cloud data to reconstruct the surfaces of rice plants and construct a virtual canopy model of the rice population. Light distribution was simulated using a ray-tracing algorithm and canopy photosynthetic rates were simulated via photosynthetic rate-incident light intensity curve fitting. Furthermore, we systematically explored the relationships between canopy phenotypes and photosynthetic rates, and found that COV was the most effective predictor of canopy photosynthesis, achieving an <em>R</em><sup>2</sup> value of 92.1%. Adjustment in atmospheric transmittance showed that COV strongly correlated with canopy photosynthesis under different light conditions, with higher accuracy observed under diffuse light. Variations in planting density confirmed that this correlation remained strong at the community level. In summary, this study demonstrates that COV is closely linked to simulated canopy photosynthesis and the developed pipeline can support future agronomic and breeding research.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 99-112"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-30DOI: 10.1016/j.rsci.2025.10.010
Qina HUANG , Lijuan WU , Hongrui JIANG , Yan HE , Song LIU , Changdeng YANG , Yan LIANG
The NRAMP (natural resistance-associated macrophage protein) family plays a pivotal role in metal ion transport, regulating both essential micronutrient uptake and toxic heavy metal accumulation in plants. In rice (Oryza sativa), OsNRAMP transporters critically influence metal homeostasis, stress adaptation, and grain safety. Among them, OsNRAMP5 serves as a major entry point for cadmium (Cd) and manganese (Mn) uptake, making it a prime target for low-Cd rice breeding. However, knockout of OsNRAMP5 leads to severe Mn deficiency, highlighting the need for precise genetic modifications (e.g., OsNRAMP5-Q337K), which reduce Cd accumulation while maintaining Mn nutrition. Additionally, OsNRAMP1 and OsNRAMP2 contribute to Cd translocation and plant immunity, whereas OsNRAMP3/4/6/7 participate in Mn, iron, and zinc distribution and stress responses. This review systematically summarizes the structural, functional, and regulatory mechanisms of OsNRAMPs, emphasizing their roles in metal transport, pathogen resistance, and abiotic stress adaptation. Furthermore, we discuss strategies for developing low-Cd rice varieties, including QTL-based breeding, CRISPR/Cas9-mediated gene editing, and multi-gene stacking approaches. Finally, we outline future research directions, such as structural engineering of metal-binding sites and field validation of engineered rice lines, to ensure sustainable rice production in heavy metal-contaminated soils.
{"title":"NRAMPs: Versatile Transporters Involved in Metal Ion Homeostasis and Their Applications in Rice Breeding","authors":"Qina HUANG , Lijuan WU , Hongrui JIANG , Yan HE , Song LIU , Changdeng YANG , Yan LIANG","doi":"10.1016/j.rsci.2025.10.010","DOIUrl":"10.1016/j.rsci.2025.10.010","url":null,"abstract":"<div><div>The NRAMP (natural resistance-associated macrophage protein) family plays a pivotal role in metal ion transport, regulating both essential micronutrient uptake and toxic heavy metal accumulation in plants. In rice (<em>Oryza sativa</em>), OsNRAMP transporters critically influence metal homeostasis, stress adaptation, and grain safety. Among them, OsNRAMP5 serves as a major entry point for cadmium (Cd) and manganese (Mn) uptake, making it a prime target for low-Cd rice breeding. However, knockout of OsNRAMP5 leads to severe Mn deficiency, highlighting the need for precise genetic modifications (e.g., OsNRAMP5-Q337K), which reduce Cd accumulation while maintaining Mn nutrition. Additionally, OsNRAMP1 and OsNRAMP2 contribute to Cd translocation and plant immunity, whereas OsNRAMP3/4/6/7 participate in Mn, iron, and zinc distribution and stress responses. This review systematically summarizes the structural, functional, and regulatory mechanisms of OsNRAMPs, emphasizing their roles in metal transport, pathogen resistance, and abiotic stress adaptation. Furthermore, we discuss strategies for developing low-Cd rice varieties, including QTL-based breeding, CRISPR/Cas9-mediated gene editing, and multi-gene stacking approaches. Finally, we outline future research directions, such as structural engineering of metal-binding sites and field validation of engineered rice lines, to ensure sustainable rice production in heavy metal-contaminated soils.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 39-58"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-09-04DOI: 10.1016/j.rsci.2025.08.006
Zhu Junlin , Zheng Guangjie , Tao Yi, Liao Wenli, Ye Chang, Xu Ya’nan, Xiao Deshun, Chu Guang, Xu Chunmei, Wang Danying
Flooding stress is a major adverse condition during the emergence period of direct-seeded rice. This study investigated the use of wood vinegar as a seed soaking treatment to enhance rice seedling rates under flooding stress, exploring both the methodology and physiological mechanisms involved. The optimal seed soaking concentration was determined through a gradient experiment, followed by a multi-cultivar validation test. The physiological mechanism of wood vinegar soaking on seedling emergence was analyzed by measuring the electrical conductivity of the flooding water, the changes in starch and soluble sugar contents in the grains and sprouts, and the dynamics of α-amylase activity and antioxidant-related enzyme activities in the sprouts. The results showed that soaking rice seeds in a wood vinegar solution at a low concentration significantly enhanced the emergence of rice seedlings under flooding conditions, with a 100-fold dilution having the most pronounced effect, increasing seedling rates by 50.6%–60.0%. Further analysis indicated that wood vinegar treatment enhanced seedling establishment by inducing a significant increase in α-amylase activity, leading to a 74.9%–213.6% increase in soluble sugar content in the sprouts during 2–8 d after flooding stress compared with the control. Additionally, the treatment increased superoxide dismutase and peroxidase activities in the sprouts, mitigating lipid peroxidation of the cell membranes, and notably lower water electrical conductivity was observed in wood vinegar-treated seeds compared with the control. In conclusion, soaking rice seeds in a 100-fold diluted wood vinegar solution improves rice seedling rates under flooding stress by mitigating oxidative damage and maintaining energy supply. This approach is valuable for developing cost-effective seed treatment technologies and offering novel strategies to improve seedling rates and uniformity of direct-seeded rice under flooding conditions.
{"title":"Wood Vinegar Enhances Seedling Rate of Rice Seeds under Flooding Stress by Mitigating Oxidative Damage and Maintaining Energy Homeostasis","authors":"Zhu Junlin , Zheng Guangjie , Tao Yi, Liao Wenli, Ye Chang, Xu Ya’nan, Xiao Deshun, Chu Guang, Xu Chunmei, Wang Danying","doi":"10.1016/j.rsci.2025.08.006","DOIUrl":"10.1016/j.rsci.2025.08.006","url":null,"abstract":"<div><div>Flooding stress is a major adverse condition during the emergence period of direct-seeded rice. This study investigated the use of wood vinegar as a seed soaking treatment to enhance rice seedling rates under flooding stress, exploring both the methodology and physiological mechanisms involved. The optimal seed soaking concentration was determined through a gradient experiment, followed by a multi-cultivar validation test. The physiological mechanism of wood vinegar soaking on seedling emergence was analyzed by measuring the electrical conductivity of the flooding water, the changes in starch and soluble sugar contents in the grains and sprouts, and the dynamics of α-amylase activity and antioxidant-related enzyme activities in the sprouts. The results showed that soaking rice seeds in a wood vinegar solution at a low concentration significantly enhanced the emergence of rice seedlings under flooding conditions, with a 100-fold dilution having the most pronounced effect, increasing seedling rates by 50.6%–60.0%. Further analysis indicated that wood vinegar treatment enhanced seedling establishment by inducing a significant increase in α-amylase activity, leading to a 74.9%–213.6% increase in soluble sugar content in the sprouts during 2–8 d after flooding stress compared with the control. Additionally, the treatment increased superoxide dismutase and peroxidase activities in the sprouts, mitigating lipid peroxidation of the cell membranes, and notably lower water electrical conductivity was observed in wood vinegar-treated seeds compared with the control. In conclusion, soaking rice seeds in a 100-fold diluted wood vinegar solution improves rice seedling rates under flooding stress by mitigating oxidative damage and maintaining energy supply. This approach is valuable for developing cost-effective seed treatment technologies and offering novel strategies to improve seedling rates and uniformity of direct-seeded rice under flooding conditions.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 129-140"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-30DOI: 10.1016/j.rsci.2025.10.005
Pratap Kalita , Bedanta Bhattacharjee , Bhrigu Kumar Das , Saikat Sen , Raja Chakraborty , Abdul Baquee Ahmed
Rice bran is the outer layer of the rice grain and a by-product of milling rice kernels, possessing high nutritional and therapeutic value. It is abundant in dietary fibers, vitamins, minerals, polyphenols, and various antioxidant molecules. The health-promoting effects of rice bran and its biomolecules have been documented in several studies. In this review, we evaluated the different nutritive and health-promoting effects of rice bran, particularly its impact on gut health and other chronic conditions associated with gut health. The biomolecules present in rice bran and their potential therapeutic effects were also summarized. This paper recapitulated the potential therapeutic and preventive efficacy of rice bran against various ailments, along with their mechanisms of action. Rice bran is an important source of nutritive substances. In addition to their nutritive value, rice bran is rich in diverse biomolecules such as anthocyanins, flavonoids, phenolics, γ-oryzanol, phytosterols and derivatives, saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids. The dietary fibers in rice bran play a key role in modulating gut microbiota, reducing inflammation, and maintaining gut health. Rice bran and its components have been found to exhibit therapeutic benefits against inflammation, diabetes, cancer, liver disorders, cardiac issues, and neurological disorders through various mechanisms. Different clinical investigations have also confirmed the potential beneficial effects of rice bran and rice bran oil in various metabolic and cardiac disease conditions. Modulating gut microbiota is an important mechanism of the beneficial effects exerted by rice bran. This comprehensive review underscores the nutritional and therapeutic value of rice bran, emphasizing its potential for wider adoption to address nutrient deficiencies and improve human health.
{"title":"Rice Bran as Nutrient-Dense Food in Gut Health and Beyond","authors":"Pratap Kalita , Bedanta Bhattacharjee , Bhrigu Kumar Das , Saikat Sen , Raja Chakraborty , Abdul Baquee Ahmed","doi":"10.1016/j.rsci.2025.10.005","DOIUrl":"10.1016/j.rsci.2025.10.005","url":null,"abstract":"<div><div>Rice bran is the outer layer of the rice grain and a by-product of milling rice kernels, possessing high nutritional and therapeutic value. It is abundant in dietary fibers, vitamins, minerals, polyphenols, and various antioxidant molecules. The health-promoting effects of rice bran and its biomolecules have been documented in several studies. In this review, we evaluated the different nutritive and health-promoting effects of rice bran, particularly its impact on gut health and other chronic conditions associated with gut health. The biomolecules present in rice bran and their potential therapeutic effects were also summarized. This paper recapitulated the potential therapeutic and preventive efficacy of rice bran against various ailments, along with their mechanisms of action. Rice bran is an important source of nutritive substances. In addition to their nutritive value, rice bran is rich in diverse biomolecules such as anthocyanins, flavonoids, phenolics, γ-oryzanol, phytosterols and derivatives, saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids. The dietary fibers in rice bran play a key role in modulating gut microbiota, reducing inflammation, and maintaining gut health. Rice bran and its components have been found to exhibit therapeutic benefits against inflammation, diabetes, cancer, liver disorders, cardiac issues, and neurological disorders through various mechanisms. Different clinical investigations have also confirmed the potential beneficial effects of rice bran and rice bran oil in various metabolic and cardiac disease conditions. Modulating gut microbiota is an important mechanism of the beneficial effects exerted by rice bran. This comprehensive review underscores the nutritional and therapeutic value of rice bran, emphasizing its potential for wider adoption to address nutrient deficiencies and improve human health.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 1","pages":"Pages 59-80"},"PeriodicalIF":6.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147407942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01DOI: 10.1016/j.rsci.2025.12.005
Ye Miao, Mao Yuxin, Yuan Rong, Zhang Dehai, Zhang Zujian
Four Modern hybrid and four japonica rice varieties differing in biomass, yield, and daily biomass production rate during the grain-filling period (DBP GF ) were used to reveal the eco-physiological photosynthetic characteristics of high-yield and high-efficiency rice. Varietal differences were analyzed in leaf and canopy photosynthetic parameters, associated leaf morphological and anatomical traits (e.g., stomatal density, vein density, mesophyll cell arrangement), as well as differences in canopy light interception and leaf area index, and their effects on yield and biomass accumulation. Hybrid rice with yield higher than 10.5 t/hm 2 and DBP GF higher than 200 kg/(hm 2 ·d), and japonica rice with yield higher than 9.0 t/hm 2 and DBP GF higher than 200 kg/(hm 2 ·d) were classified as high-yield and high-efficiency varieties; the other varieties were considered general varieties. According to this standard, two hybrid and two japonica varieties were categorized as high-yield and high-efficiency types, while the remaining two hybrid and two japonica varieties were classified as general types. Results indicated that high-yield and high-efficiency varieties generally have higher leaf and canopy photosynthesis, superior leaf stomatal, vascular, and mesophyll structures that facilitate CO 2 diffusion and hydraulic transport, higher canopy light transmittance, and slower leaf area attenuation. Rice yield and biomass were positively correlated with photosynthetic parameters and closely linked to associated photosynthetic traits. Efficient rice production attributed to coordinated improvements in leaf structure, canopy architecture, and delayed leaf area attenuation. This study provides important theoretical guidance for breeding high-efficiency rice varieties.
{"title":"Optimized Leaf Morphology and Delayed Senescence Boost Rice Yield via Enhanced Leaf and Canopy Photosynthesis","authors":"Ye Miao, Mao Yuxin, Yuan Rong, Zhang Dehai, Zhang Zujian","doi":"10.1016/j.rsci.2025.12.005","DOIUrl":"https://doi.org/10.1016/j.rsci.2025.12.005","url":null,"abstract":"Four Modern hybrid and four japonica rice varieties differing in biomass, yield, and daily biomass production rate during the grain-filling period (DBP GF ) were used to reveal the eco-physiological photosynthetic characteristics of high-yield and high-efficiency rice. Varietal differences were analyzed in leaf and canopy photosynthetic parameters, associated leaf morphological and anatomical traits (e.g., stomatal density, vein density, mesophyll cell arrangement), as well as differences in canopy light interception and leaf area index, and their effects on yield and biomass accumulation. Hybrid rice with yield higher than 10.5 t/hm 2 and DBP GF higher than 200 kg/(hm 2 ·d), and japonica rice with yield higher than 9.0 t/hm 2 and DBP GF higher than 200 kg/(hm 2 ·d) were classified as high-yield and high-efficiency varieties; the other varieties were considered general varieties. According to this standard, two hybrid and two japonica varieties were categorized as high-yield and high-efficiency types, while the remaining two hybrid and two japonica varieties were classified as general types. Results indicated that high-yield and high-efficiency varieties generally have higher leaf and canopy photosynthesis, superior leaf stomatal, vascular, and mesophyll structures that facilitate CO 2 diffusion and hydraulic transport, higher canopy light transmittance, and slower leaf area attenuation. Rice yield and biomass were positively correlated with photosynthetic parameters and closely linked to associated photosynthetic traits. Efficient rice production attributed to coordinated improvements in leaf structure, canopy architecture, and delayed leaf area attenuation. This study provides important theoretical guidance for breeding high-efficiency rice varieties.","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147381661","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号