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2026年9月9日","2026-09-09T00:00:00Z",{"impact":123,"substance":17,"depth":19,"authority":46,"freshness":207,"relevant":22,"comment":208},7,"全国性水稻优异种质资源展示与学术交流活动，覆盖15省市56家单位、290份种质与5000余份次引种意向，数据具体、信源权威，对种业振兴主题有聚合价值，但属会议报道而非政策或技术突破，适合入选每日精选。",[210],{"name":204,"url":202},[27,28,178,212,213],"联合攻关","成果展示",{"code":53,"slug":85,"name":27,"path":86,"parent_code":87},[216],{"code":33,"slug":34,"name":35,"path":36,"parent_code":37},{"status":40,"locked":14,"version":41,"method":42,"evidence":218},{"candidates":219,"agricultural_evidence":47},[220,224],{"code":33,"score":46,"supported":47,"title":221,"abstract":222,"tags":223},[178],[178],[28,178],{"code":53,"score":94,"supported":47,"title":225,"abstract":226,"tags":227},[27],[27],[27],[229,230],"成果展示 种业振兴 种质资源 联合攻关","成果展示 种业振兴","成果展示种业振兴种质资源联合攻关-2207","2026-09-12T00:06:37.999027Z",{"id":234,"title":235,"url":236,"summary":237,"summary_zh":8,"content":238,"source_name":239,"source_url":8,"published_at":205,"category":12,"cover_url":8,"hotness":13,"is_selected":47,"score":240,"score_detail":241,"sources":245,"tags":247,"primary_topic":251,"secondary_topics":252,"classification":254,"search_phrases":272,"slug":275,"view_count":139,"doi":8,"paper":8,"created_at":276},2085,"中国水稻所张健团队克隆水稻种子寿命关键基因SL6 延长储藏期破解种业\"卡脖子\"难题","https:\u002F\u002Fnews.sciencenet.cn\u002Fhtmlnews\u002F2026\u002F9\u002F571175.shtm","9月5日中国水稻研究所水稻生物育种全国重点实验室张健团队在国际期刊《科学—进展》(Science Advances)发表研究成果,成功克隆调控水稻种子寿命的关键基因SL6。该基因编码脂酰-酰基载体硫酯酶,通过调节种子脂肪酸组分、抑制膜脂过氧化延长种子寿命,提出\"源头防御\"新理论。全球每年约25%-33%的种子因储藏老化失去活力,该研究为破解种业\"卡脖子\"难题提供全新分子育种路径。","[![Image 1: 科学网新闻频道](https:\u002F\u002Fnews.sciencenet.cn\u002Fimages\u002Fnews.jpg)](https:\u002F\u002Fnews.sciencenet.cn\u002F)\n\n[生命科学](https:\u002F\u002Fwww.sciencenet.cn\u002Flife\u002F) | [医学科学](https:\u002F\u002Fwww.sciencenet.cn\u002Fmedicine\u002F) | [化学科学](https:\u002F\u002Fwww.sciencenet.cn\u002Fchemistry\u002F) | [工程材料](https:\u002F\u002Fwww.sciencenet.cn\u002Fmaterial\u002F) | [信息科学](https:\u002F\u002Fwww.sciencenet.cn\u002Finformation\u002F) | [地球科学](https:\u002F\u002Fwww.sciencenet.cn\u002Fearth\u002F) | [数理科学](https:\u002F\u002Fwww.sciencenet.cn\u002Fmathematics\u002F) | [管理综合](https:\u002F\u002Fwww.sciencenet.cn\u002Fpolicy\u002F)[站内规定](https:\u002F\u002Fblog.sciencenet.cn\u002Fblog-45-1064777.html) | [手机版](https:\u002F\u002Fwap.sciencenet.cn\u002F)\n\n[首页](https:\u002F\u002Fwww.sciencenet.cn\u002F) | [新闻](https:\u002F\u002Fnews.sciencenet.cn\u002F) | [博客](https:\u002F\u002Fblog.sciencenet.cn\u002Fblog.php) | [院士](https:\u002F\u002Fnews.sciencenet.cn\u002Fys\u002F) | [人才](https:\u002F\u002Ftalent.sciencenet.cn\u002F) | [会议](https:\u002F\u002Fmeeting.sciencenet.cn\u002F) | [基金·项目](https:\u002F\u002Ffund.sciencenet.cn\u002F) | [论文](https:\u002F\u002Fpaper.sciencenet.cn\u002F) | [绘图](https:\u002F\u002Fvisual-web.sciencenet.cn\u002F) | [视频·直播](https:\u002F\u002Fblog.sciencenet.cn\u002Fblog.php?mod=video) | [小柯机器人](https:\u002F\u002Fpaper.sciencenet.cn\u002FAInews) | [医学科普](https:\u002F\u002Fyxkp.sciencenet.cn\u002F)\n\n作者：李晨 来源：中国科学报 发布时间：2026\u002F9\u002F9 21:45:19 选择字号：小 中 大 解锁长寿密码：对抗水稻种子老化的“分子盾牌” 种子是农业的“芯片”，却也是极其脆弱的“芯片”。全球每年约有25%~33%的种子因贮藏过程中的老化而失去活力，造成的损失超过数十亿美元。 ![Image 2](https:\u002F\u002Frmtzx.sciencenet.cn\u002Fkxwsprint\u002F6aa115cee4b078fce44b03cc.jpg)不同物种的种子寿命差异。中国农科院水稻所供图 9月5日，中国水稻研究所水稻生物育种全国重点实验室研究员张健团队在国际期刊《科学—进展》（_**Science Advances**_）发表了研究成果。该研究成功克隆到调控水稻种子寿命的关键基因SL6，并揭示其调节种子脂肪酸组分，抑制膜脂过氧化，从而延长种子寿命的分子机制。 **种子世界里悬殊的生命年轮** 论文通讯作者张健介绍，种子在成熟后期干燥后会进入休眠状态，可在较长时间里保持活性，被认为是植物维持繁衍的重要机制。然而，储藏过程中，即便轻微的代谢活动就会使种子发生老化，逐渐丧失活力。 由于种子寿命评价指标复杂、研究周期长，种子寿命调控基因（尤其是自然变异的基因型）鲜见报道，遗传机理不明。如何延长种子寿命，一直是种业领域的“卡脖子”难题。 “因生长环境、贮藏环境、种子形态和内含物组分等差异，不同物种的种子寿命存在巨大的差异。”张健说，生长在喜马拉雅南麓的婆罗双的种子寿命仅有几周的时间；而同为豆科植物，花生和大豆的种子寿命约1~2年，绿豆的寿命则可长达5年左右。 而常见的禾谷类作物，如水稻、小麦和玉米的种子寿命在2~5年之间。我国辽宁省普兰店出土的睡莲种子在保存1300多年后仍能保持发芽能力，而在黑海附近出土的海枣种子寿命甚至高达2000多年。“每一粒种子中都隐藏着沉睡与凋零的生命密码。”张健强调。 **源自野生稻的驯化馈赠** 长期以来，科学界对种子老化的研究多聚焦于“清除自由基”的抗氧化路径。该研究团队另辟蹊径，提出了“源头防御”的新理论。 历经近十年努力，研究团队创立了种子寿命半衰期指标G50，并从耐储籼稻品种黄华占(HHZ)中克隆到主效QTL-qSL6，该基因编码一类脂酰-酰基载体硫酯酶，其核心功能是调控软脂酸(约占稻米脂肪酸20%)的合成。 论文共同第一作者、中国水稻研究所水稻生物育种全国重点实验室副研究员王以锋介绍，种子灌浆期发生的干燥胁迫会产生脱落酸（ABA）信号，可以激活SL6基因表达。而SL6就像一个精密的“分子盾牌”，通过重塑种子内部的脂肪酸组分，显著提高饱和\u002F不饱和脂肪酸的比例，有效降低了细胞膜脂双键被氧化的风险，从源头上加固了细胞的“防御工事”，抑制膜脂过氧化损伤。 这一机制突破了传统抗氧化研究范式。这是首次在植物中完整揭示了“恒黏适应性”的分子调控通路，即生物在逆境下主动重塑膜脂组分、以维持膜流动性和黏度稳态的抗逆机制，为理解种子活力衰退提供了全新的视角。 论文共同第一作者、中国水稻研究所水稻生物育种全国重点实验室研究员应杰政说，他们还发现，SL6可分为两种单倍型。其中一种为祖先型，源自野生稻，是水稻在驯化过程中为适应高温高湿贮藏环境而保留下来的“长寿秘籍”，主要在籼稻中保留，而在粳稻驯化过程中逐渐丢失。 **拓展稻种的贮藏韧性** 上述发现不仅解释了籼粳间种子耐贮性差异的遗传基础，也为合成生物学提供了一种全新的高效调控工具。 随后，他们通过转基因方法适度提高SL6表达量，或利用分子育种手段将该基因导入主栽粳稻品种或粳型恢复系亲本。结果发现，这样可有效提升常规稻和籼粳杂交稻种子的半衰期，例如，常规稻种子半衰期提升约27%，杂交稻种子半衰期提升约15%，且不改变主要农艺性状。 “这对于解决我国粳稻及籼粳杂交稻种子仓储过程中易劣变的产业痛点具有巨大的应用价值。”张健说，此外，SL6亦可大幅提升拟南芥和烟草的种子寿命，表明该基因在单、双子叶植物的种子耐储性改良方面拥有广阔的跨物种应用前景。 相关论文信息：https:\u002F\u002Fdoi.org\u002F10.1126\u002Fsciadv.aeg8609 版权声明：凡本网注明“来源：中国科学报、科学网、科学新闻杂志”的所有作品，网站转载，请在正文上方注明来源和作者，且不得对内容作实质性改动；微信公众号、头条号等新媒体平台，转载请联系授权。邮箱：shouquan@stimes.cn。\n\n打印 发E-mail给：\n\n以下评论只代表网友个人观点，不代表科学网观点。\n\n[![Image 3](https:\u002F\u002Fnews.sciencenet.cn\u002Fimages\u002Fnewcomm.gif)](https:\u002F\u002Fnews.sciencenet.cn\u002Fhtml\u002Fcomment.aspx?id=571175)\n\n相关新闻 相关论文\n*   1\n*   [基金委发布2个2026年度项目指南](https:\u002F\u002Fnews.sciencenet.cn\u002Fhtmlnews\u002F2026\u002F9\u002F571167.shtm)\n\n*   2\n*   [2026年度 “澳门青年学者计划”获选结果公布](https:\u002F\u002Fnews.sciencenet.cn\u002Fhtmlnews\u002F2026\u002F9\u002F571166.shtm)\n\n*   3\n*   [不收论文，一份陶哲轩参与的新期刊诞生了](https:\u002F\u002Fnews.sciencenet.cn\u002Fhtmlnews\u002F2026\u002F9\u002F571162.shtm)\n\n* 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种子寿命","农业科技 基因育种","农业科技基因育种种业振兴种子寿命-2085","2026-09-11T00:04:20.009428Z",{"id":278,"title":279,"url":280,"summary":281,"summary_zh":8,"content":282,"source_name":283,"source_url":8,"published_at":284,"category":12,"cover_url":8,"hotness":13,"is_selected":14,"score":285,"score_detail":286,"sources":288,"tags":290,"primary_topic":294,"secondary_topics":295,"classification":296,"search_phrases":321,"slug":324,"view_count":139,"doi":8,"paper":8,"created_at":325},1872,"云南拟审定通过一批农作物品种——第十届云南省农作物品种审定委员会2026年初次审定","https:\u002F\u002Fwww.toutiao.com\u002Farticle\u002F7681468558550876707\u002F","第十届云南省农作物品种审定委员会水稻、小麦、大豆、玉米专业委员会2026年初次审定会议结束，初审主要农作物品种共有132个，通过106个；水稻29个、小麦22个、大豆18个、玉米44个；云南省农业科学院粮食作物研究所选育的云麦129、云麦124、云麦125等品种通过初审。","[](https:\u002F\u002Fwww.toutiao.com\u002F)\n\n*   关注 \n*   推荐 \n*   北京   \n*   视频 \n*   财经 \n*   科技 \n*   热点 \n*   国际 \n*   更多 \n\n    *   军事 \n    *   体育 \n    *   娱乐 \n    *   历史 \n    *   美食 \n    *   [直播](https:\u002F\u002Flive.ixigua.com\u002F) \n    *   旅游 \n    *   [懂车帝](https:\u002F\u002Fwww.dongchedi.com\u002F?zt=tt_pc_home_channel) \n\n搜索\n\n[消息](https:\u002F\u002Fwww.toutiao.com\u002Farticle\u002F7681468558550876707\u002F)\n\n[发布](https:\u002F\u002Fwww.toutiao.com\u002Farticle\u002F7681468558550876707\u002F)\n\n[登录](https:\u002F\u002Fsso.toutiao.com\u002Flogin\u002F?service=https%3A%2F%2Fwww.toutiao.com%2Farticle%2F7681468558550876707%2F%3Fwid%3D1788826339628)\n\n1\n\n评论\n\n收藏\n\n分享\n\n*   转发到头条 \n*   复制链接 \n*   微信  微信扫码分享  \n*   新浪微博 \n*   QQ空间 \n\n# 云南拟审定通过一批农作物品种\n\n2026-09-04 08:21·[昆明信息港](https:\u002F\u002Fwww.toutiao.com\u002Fc\u002Fuser\u002Ftoken\u002FMS4wLjABAAAAgLDpmdScBuk3aHS9ZzawuKGmg8rkgmp5U8PIvFgWng0\u002F?source=tuwen_detail)\n\n**昆明信息港讯（昆明日报 首席记者廖兴阳）**近日，云南省农作物品种审定委员会办公室发布公示，第十届云南省农作物品种审定委员会水稻、小麦、大豆、玉米专业委员会2026年初次审定会议结束，初审的主要农作物品种共有132个，通过106个。\n\n此次通过初审的品种涵盖水稻、小麦、大豆、玉米。在29个通过初审的水稻品种中，既有优质软米类型的锦瑞15号、云粳65号等常规粳稻，也有云两优9817、旱优189等杂交籼稻，还有一批特色稻米品种以及陆稻品种。\n\n小麦领域22个品种通过初审，包括云南农业大学选育的滇麦24至滇麦31等，云南省农业科学院粮食作物研究所选育的云麦129、云麦124、云麦125等。\n\n大豆领域18个品种通过初审，包括云南农业大学选育的金菽50、金菽61、金菽15等，黑珍珠、宏秋75、润鲜豆系列和云南省农科院选育的云褐豆2号、云黑豆1号、云黑豆2号等。\n\n玉米领域通过初审的品种最多，共有44个。其中，普通玉米有红谷868、足单2413、山谷53等；鲜食玉米亮点纷呈，包括德甜双色1号、德甜双色18号、玉黑甜1号等甜糯玉米品种。\n\n有26个品种未通过初审。公示还透露，拟撤销22个玉米品种审定，这些品种因推广面积下降等因素将退出市场。\n\n举报\n\n评论 0\n\n请先 登录 后发表评论～\n\n加载失败，请重新刷新\n\n热门：\n*   [这到底是直播带](https:\u002F\u002Fm.ixigua.com\u002Fdx\u002F7682367985340510129 \"这到底是直播带货不行了，还是消费者变了？ #电商 #直播带货 #真财实学计划 #燃起来了大国重器 #零距离看懂财经\")\n*   [《大案纪实》深](https:\u002F\u002Fm.ixigua.com\u002Fdx\u002F7682367913570880802 \"《大案纪实》深度分析 沈阳刘涌案全揭秘，枪击民警、强占商铺、保护伞层层包庇，结局大快人心。#真实案件 #案件解析 #抖音精选 #创作者扶持计划\")\n*   [紫金矿业为中报](https:\u002F\u002Fm.ixigua.com\u002Fdx\u002F7682367895377227769 \"紫金矿业为中报的错误致歉 #日常吐槽大实话 #日常随拍分享 #坚持自律\")\n*   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