Rice SciencePub Date : 2026-05-01Epub Date: 2026-03-31DOI: 10.1016/j.rsci.2026.03.003
Mingrui LUO , Zhicheng JIN , Zhijie LIU , Wangkai ZHOU , Ruifeng ZHENG , Zehong HUANG , Xiaoli SHU , Dianxing WU , Zengxu AN
{"title":"Physicochemical Properties of Rice Hybrid Progeny from Parents with Divergent Resistant Starch Profiles","authors":"Mingrui LUO , Zhicheng JIN , Zhijie LIU , Wangkai ZHOU , Ruifeng ZHENG , Zehong HUANG , Xiaoli SHU , Dianxing WU , Zengxu AN","doi":"10.1016/j.rsci.2026.03.003","DOIUrl":"10.1016/j.rsci.2026.03.003","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 3","pages":"Pages 297-300"},"PeriodicalIF":6.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208461","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}
Rice SciencePub Date : 2026-05-01Epub Date: 2026-01-21DOI: 10.1016/j.rsci.2025.12.003
Jardel da SILVA SOUZA , Sandra Helena UNEDA-TREVISOLI , Felipe DALLA LANA , Roberto FRITSCHE-NETO
{"title":"A Low-Cost RGB-Based Image Processing Method for High-Throughput Assessment of Rice Grain Chalkiness","authors":"Jardel da SILVA SOUZA , Sandra Helena UNEDA-TREVISOLI , Felipe DALLA LANA , Roberto FRITSCHE-NETO","doi":"10.1016/j.rsci.2025.12.003","DOIUrl":"10.1016/j.rsci.2025.12.003","url":null,"abstract":"<div><div>Although numerous rice genotypes have been developed worldwide, post-harvest evaluation of chalkiness, a key grain trait, remains a significant challenge in breeding programs. Conventional phenotyping methods rely on manual grain separation and analysis, which limit the speed and performance of decision-making. This study aimed to assess the efficiency of a low-cost, image-based phenotyping method for characterizing rice grain chalkiness and morphological traits (grain length and width) in comparison with traditional evaluation methods. Grains from 270 rice samples were imaged using a hyperspectral camera (visible to near-infrared, 400–1 000 nm) and a Nikon digital single-lens reflex (DSLR) camera. Only RGB information was used for analysis, including RGB channels extracted from hyperspectral imagery to simulate low-cost setups. Python scripts were used to segment grains, estimate morphological parameters, and calculate chalkiness degree. Results from both imaging systems were compared with reference data obtained from the SeedCount platform. Strong correlations with SeedCount reference data were observed for chalkiness degree, reaching <em>r</em> = 0.93 when using hyperspectral-derived RGB data and <em>r</em> = 0.98 when using DSLR-acquired RGB images. Binary classification metrics showed high discriminative performance, with area under the curve (AUC) values above 0.90 for most traits. The proposed method enabled image acquisition and processing in approximately 21 s per sample, compared to 1.5 min required by the conventional platform. The findings demonstrate the feasibility of a rapid and low-cost image-based phenotyping strategy to support rice breeding programs, particularly for chalkiness quantification and grain morphology assessment. The complete image-processing pipeline is provided as supplementary material, reinforcing the transparency and reproducibility of the method.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 3","pages":"Pages 381-391"},"PeriodicalIF":6.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208462","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}
Rice SciencePub Date : 2026-05-01Epub Date: 2026-04-11DOI: 10.1016/j.rsci.2026.04.001
Mohammad Abass AHANGER , Yunfang LI , Biru Alemu CHALI , Guizhou LIU , Chengkai LU , Jinpeng WAN , Peng XU
{"title":"Integrated Transcriptomic, Metabolomic, and Physio-Biochemical Analyses Reveal that NO and H2S Enhance Drought Tolerance in Upland Rice","authors":"Mohammad Abass AHANGER , Yunfang LI , Biru Alemu CHALI , Guizhou LIU , Chengkai LU , Jinpeng WAN , Peng XU","doi":"10.1016/j.rsci.2026.04.001","DOIUrl":"10.1016/j.rsci.2026.04.001","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 3","pages":"Pages 282-286"},"PeriodicalIF":6.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208464","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}
Rice SciencePub Date : 2026-05-01Epub Date: 2026-02-14DOI: 10.1016/j.rsci.2026.02.004
Honghuan FAN , Jian SONG , Liqun TANG , Junmin WANG , Zhonghua SHENG , Guiai JIAO , Shaoqing TANG , Shikai HU , Peisong HU
{"title":"Advances in Rice Coleoptile Elongation: Implications for Direct-Seeded Rice Adaptation","authors":"Honghuan FAN , Jian SONG , Liqun TANG , Junmin WANG , Zhonghua SHENG , Guiai JIAO , Shaoqing TANG , Shikai HU , Peisong HU","doi":"10.1016/j.rsci.2026.02.004","DOIUrl":"10.1016/j.rsci.2026.02.004","url":null,"abstract":"<div><div>The rice coleoptile, a key protective structure during seed development, is crucial for safeguarding the plumule and facilitating seed germination. It plays a pivotal role in seedling emergence from soil, with its elongation characteristics being particularly important in direct-seeding systems. Coleoptile elongation is a complex biological process coordinately regulated by environmental factors, genetic background, plant hormones, and other signaling molecules, all of which interact to modulate elongation dynamics. This review systematically summarizes the mechanisms underlying coleoptile elongation, explores the regulatory roles of environmental and physiological factors, and synthesizes recent research progress on the identification of coleoptile-related QTLs, gene mining, and molecular regulatory mechanisms. Furthermore, we discuss the potential applications of coleoptile research in rice genetic improvement, aiming to provide a theoretical basis and novel insights for leveraging coleoptile traits in future breeding strategies.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 3","pages":"Pages 327-339"},"PeriodicalIF":6.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208455","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}
Rice SciencePub Date : 2026-05-01Epub Date: 2025-10-30DOI: 10.1016/j.rsci.2025.10.009
Kieu Anh Thi PHAN, Juho LEE, Cong Danh NGUYEN, Sang-Kyu LEE
{"title":"Molecular and Functional Insights into Sugar Transporters in Rice","authors":"Kieu Anh Thi PHAN, Juho LEE, Cong Danh NGUYEN, Sang-Kyu LEE","doi":"10.1016/j.rsci.2025.10.009","DOIUrl":"10.1016/j.rsci.2025.10.009","url":null,"abstract":"<div><div>Sugars are the main sources of energy and carbon for plants, making them crucial for various aspects of plant growth and development. Three prominent families of sugar transporters have been extensively researched: sucrose transporter, monosaccharide transporter, and sugars will eventually be exported transporter. The primary function of sugar transporters is to facilitate the movement of saccharide molecules, particularly sucrose and glucose, from cell to cell or from source tissues, such as leaves, to sink tissues like roots and developing seeds. Beyond mere transport, sugar transporters are integral to several biological and physiological processes in the plant. They are involved in phloem loading, which is critical for nutrient distribution throughout the plant, contribute to overall plant growth and development, and are essential in response to biotic (e.g., pathogen attack) and abiotic (e.g., drought or salinity) stresses.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 3","pages":"Pages 309-326"},"PeriodicalIF":6.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208427","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}
Rice SciencePub Date : 2026-03-01Epub Date: 2026-02-13DOI: 10.1016/j.rsci.2026.02.006
Wei ZHANG , Chunxiao CHEN , Linli FU , Xin JIN , Xinchen WANG , Changhua LIU , Qingyun BU , Xiaojie TIAN
{"title":"Generation and Functional Characterization of an Allelic Series of osmapk6 Mutants","authors":"Wei ZHANG , Chunxiao CHEN , Linli FU , Xin JIN , Xinchen WANG , Changhua LIU , Qingyun BU , Xiaojie TIAN","doi":"10.1016/j.rsci.2026.02.006","DOIUrl":"10.1016/j.rsci.2026.02.006","url":null,"abstract":"","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 2","pages":"Pages 163-167"},"PeriodicalIF":6.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636676","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}
{"title":"Regulatory Strategies for Alleviating Anaerobic and Submergence Stress in Rice","authors":"Xiaoli ZHANG , Wei TAO , Maoyan TANG , Guoqing GAO , Lei CHEN , Xiaoyuan ZHONG , Ronghua LÜ , Dongming QIN , Tianfeng LIANG , Hui GUO","doi":"10.1016/j.rsci.2026.01.001","DOIUrl":"10.1016/j.rsci.2026.01.001","url":null,"abstract":"<div><div>Rice production is increasingly challenged by flooding stress because of global warming and rising sea levels. As the world’s most important staple crop, rice is highly vulnerable to anaerobic and submergence conditions that occur during flooding, particularly at the germination and vegetative stages. Anaerobic environments hinder seedling establishment during germination, while prolonged submergence during the vegetative stage impairs growth, ultimately reducing yield and grain quality. These stresses, driven by extended inundation, trigger a cascade of detrimental physiological responses and represent a major barrier to stable rice production and global food security. In this review, we examine the effects of flooding on rice growth at both the germination and vegetative stages. We further summarize recent advances in the identification of flooding-tolerant germplasm, QTL mapping, genome-wide association study, transcriptomic and proteomic analyses, and other molecular studies. Subsequently, we highlight potential cultivation and regulatory strategies, including genetic, morphological, physiological, and endogenous hormone-related approaches, aimed at enhancing tolerance to anaerobic and submergence stress. Together, these approaches underscore the promise of integrating molecular insights with agronomic practices to mitigate flooding damage and support sustainable rice production.</div></div>","PeriodicalId":56069,"journal":{"name":"Rice Science","volume":"33 2","pages":"Pages 186-202"},"PeriodicalIF":6.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636698","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}