Industrial Crops and Products最新文献_第5页

Tiered valorization of corn straw-deer manure waste: Enhanced button mushroom quality coupled with functional characterization of stage-specific substrate for targeted industrial use 玉米秸秆-鹿粪废物的分层增值：提高钮扣菇质量，结合针对工业用途的特定阶段基质的功能表征

IF 5.9 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122878

Keqing Qian, Peng Dong, Arman Alim, Wenying Su, Weijian Li, Ze Liu, You Li, Zhengxiang Qi, Haiyan Lv, Xiaohui Yuan, Yu Li, Xiao Li, Bo Zhang

引用次数: 0

Unlocking the potential oil palm (Elaeis guineensis Jacq.) leaf in wound care management: A review on phytochemicals, bioactivities and underlying mechanism pathways in wound healing 油棕叶在伤口护理管理中的潜力：植物化学物质、生物活性及其在伤口愈合中的潜在机制途径综述

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122863

Mohamad Shazeli Che Zain

Wound care management is a significant challenge in clinical practice, prompting the exploration of novel and effective treatments. The oil palm (Elaeis guineensis Jacq.), primarily cultivated for its oil, shows promising potential beyond its traditional uses. This review explores the phytochemicals present in oil palm leaves, extraction technologies, their biological activities, and underlying mechanism pathways in wound healing. Through an extensive review of current literature, key compounds such as flavonoids, phenolic acid glycosides, organic acids, amine and amino acids, and carbohydrates are identified. Numerous studies have reported that catechin, apigenin and luteolin derivatives possess wound-healing properties due to their well-acclaimed anti-inflammatory, angiogenesis, re-epithelialization, and antioxidant effects. They have been forecast to influence the wound healing process by expressing biomarkers associated with various pathways, including nuclear factor kappa b (NF-κB), Wnt/β-catenin, transforming growth factor-beta (TGF-β), NF-E2-related factor 2/antioxidant responsive element (Nrf2/ARE) pathways, among others. Importantly, nanotechnology-based formulations such as nanoemulsions and nanogels have demonstrated enhanced targeted delivery of these bioactive extracts, improving their solubility, stability, bioavailability, and site-specific accumulation at the wound bed. The incorporation of nanotechnology in wound care product development thus represents a promising strategy to maximize the therapeutic potential of oil palm leaf phytochemicals. These advancements support the development of precise, next-generation herbal wound care therapies that are both effective and safe. Opportunity and challenges to maximize the exploitation of this leaf are also highlighted at the end of this review.

伤口护理管理是临床实践中的一个重大挑战，促使探索新颖有效的治疗方法。油棕（Elaeis guineensis Jacq.），主要是为了它的油而种植的，在其传统用途之外显示出有希望的潜力。本文综述了油棕叶中的植物化学物质、提取技术、生物活性及其在创面愈合中的潜在机制途径。通过对当前文献的广泛回顾，确定了黄酮类化合物、酚酸苷、有机酸、胺和氨基酸以及碳水化合物等关键化合物。大量研究报道，儿茶素、芹菜素和木犀草素衍生物具有良好的抗炎、血管生成、再上皮化和抗氧化作用，具有伤口愈合特性。据预测，它们通过表达与各种途径相关的生物标志物来影响伤口愈合过程，包括核因子κ b （NF-κB）、Wnt/β-catenin、转化生长因子-β (TGF-β)、NF- e2相关因子2/抗氧化反应元件（Nrf2/ARE）途径等。重要的是，基于纳米技术的配方，如纳米乳液和纳米凝胶，已经证明了这些生物活性提取物的靶向递送，提高了它们的溶解度、稳定性、生物利用度和伤口床的部位特异性积累。因此，在伤口护理产品开发中纳入纳米技术代表了一种有前途的策略，可以最大限度地发挥油棕叶植物化学物质的治疗潜力。这些进步支持精确，下一代草药伤口护理疗法的发展，既有效又安全。最大限度地利用这片叶子的机遇和挑战也在本文的最后强调。

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引用次数: 0

Astragalus polysaccharides modulate gut microbial interaction and bile acid metabolism of postpartum dairy cows 黄芪多糖对产后奶牛肠道微生物相互作用及胆汁酸代谢的调节作用

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122861

Zhengzhong Luo , Kang Yong , Kang Zhang , Yixin Huang , Zheng Zhou , Xueping Yao , Liuhong Shen , Shumin Yu , Jianxi Li , Suizhong Cao

Gut microbiota is a symbiotic ecosystem, yet how polysaccharides regulate gut microbial interactions and the related host co-metabolism in dairy cows, particularly regarding bile acids, remain unclear. In postpartum cows, Astragalus polysaccharides (APS) supplementation reduced key biomarkers of metabolic stress, including β-hydroxybutyrate, triglycerides, interferon-γ, and TNF-α. Although fecal microbial diversity did not show significant changes, APS markedly altered interactions within the gut microbiota, improving cohesion and stability of co-occurrence network, such as a higher clustering coefficient, greater core modularization, and enhanced robustness, with reduced average path length and vulnerability. APS elevated bile acids such as tauroursodeoxycholic acid, independent of changes in related taxa abundance. Moreover, microbial functional gene networks exhibited strong correlations with bile acid metabolism after APS treatment. These findings demonstrate that APS enhances microbial network stability and bile acid–related host co-metabolism, alleviating postpartum metabolic stress in dairy cows.

肠道菌群是一个共生生态系统，但多糖如何调节奶牛肠道微生物的相互作用和相关的宿主共代谢，特别是胆汁酸，尚不清楚。在产后奶牛中，添加黄芪多糖（APS）可降低代谢应激的关键生物标志物，包括β-羟基丁酸、甘油三酯、干扰素-γ和TNF-α。虽然粪便微生物多样性没有明显变化，但APS显著改变了肠道微生物群之间的相互作用，提高了共发生网络的凝聚力和稳定性，如更高的聚类系数，更大的核心模块化，增强了鲁棒性，减少了平均路径长度和脆弱性。APS升高了牛磺酸去氧胆酸等胆汁酸，独立于相关分类群丰度的变化。此外，APS处理后，微生物功能基因网络与胆汁酸代谢表现出很强的相关性。由此可见，APS可增强奶牛微生物网络稳定性和与胆汁酸相关的宿主共代谢，缓解奶牛产后代谢应激。

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引用次数: 0

Genome-wide analysis of cytochrome P450 genes discovers two oxidases responsible for the biosynthesis of oxindole alkaloids in Uncaria rhynchophylla 细胞色素P450基因的全基因组分析发现了两种氧化酶，这些氧化酶负责钩藤氧化吲哚生物碱的生物合成

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122877

Hao-cheng Lou , Jia-shun Yang , Hong Zhang , Chao Li , Xiao-jun Pan , Jia-ning Pan , Shi-zan Cao , Li-shang Dai , Zhi-gang Wu

Uncaria rhynchophylla (Gou-teng, UR) produces numerous structurally diverse tetracyclic monoterpene oxindole-type alkaloids (tMOAs) with notable pharmacological activities. Cytochromes P450 (CYPs) play crucial roles in generating the structural diversity of specialized metabolites. However, the CYP superfamily and its biochemical function in tMOAs biosynthesis in UR remains poorly characterized, largely due to the complexity of P450 genes. In this study, a total of 460 UrCYP genes were identified in the UR genome and clustered into nine clans and 43 families by a comprehensive genome-wide analysis. Furthermore, phylogenetic relationships, gene structure, conserved motifs, and duplication events driving the expansion of these UrCYPs were revealed, respectively. Using gene coexpression analysis and yeast functional assays, two tandemly duplicated CYP71 members were discovered to catalyze the regio-specific C-2’ oxindole and rearrangement of tetracyclic corynanthe-type intermediates (hirsutine, hirsuteine) to form tMOAs, including rhynchophylline, isorhynchophylline, corynoxeine, and isocorynoxeine. Meanwhile, overexpression and RNA interference of UrCYP71A22.4 and UrCYP71A22.5 substantially increased and decreased the accumulation of these oxindole alkaloids in hairy roots, respectively. Subcellular localization revealed that UrCYP71A22.4/5-eGFP fusion proteins localize to endoplasmic reticulum membranes. Docking analysis identified four conserved candidate residues (S134/130, D319/318, R447/459, P450/462) surrounding UrCYP71A22.4/5 binding pockets that likely serve as key active sites for 2-oxindole structure formation. Together, this study not only provides critical insights into the previously unknown biosynthesis of tMOAs in UR but also offers a potential strategy for the sustainable production of these pharmaceutically valuable alkaloids.

钩藤（Uncaria rhynchophylla, gouteng， UR）具有多种结构多样的四环单萜氧吲哚类生物碱（tMOAs），具有显著的药理活性。细胞色素P450 （CYPs）在产生特殊代谢物的结构多样性中起着至关重要的作用。然而，由于P450基因的复杂性，CYP超家族及其在UR中tMOAs生物合成中的生化功能仍然知之甚少。本研究通过全面的全基因组分析，在UR基因组中共鉴定出460个UrCYP基因，并将其聚类为9个氏族和43个家族。此外，还揭示了系统发育关系、基因结构、保守基序和驱动这些UrCYPs扩增的复制事件。通过基因共表达分析和酵母功能分析，发现两个连续重复的CYP71成员催化区域特异性的C-2 '氧化吲哚和四环堇青素型中间体（hirsutin, hirsuteine）重排形成tmoa，包括rhynchophyline， isorhynchophyline， corynoxeine和isocorynoxeine。同时，UrCYP71A22.4和UrCYP71A22.5的过表达和RNA干扰分别显著增加和减少了毛状根中这些氧吲哚类生物碱的积累。亚细胞定位显示UrCYP71A22.4/5-eGFP融合蛋白定位于内质网膜。对接分析发现urcyp71a21.4 /5结合袋周围有4个保守的候选残基（S134/130、D319/318、R447/459、P450/462），可能是2-氧吲哚结构形成的关键活性位点。总之，这项研究不仅为以前未知的tMOAs在UR中的生物合成提供了重要的见解，而且为这些具有药用价值的生物碱的可持续生产提供了潜在的策略。

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引用次数: 0

Whole-genome resequencing reveals the genetic diversity and adaptive evolution of northern Chinese populations of Quercus mongolica 全基因组重测序揭示了中国北方蒙古栎居群的遗传多样性和适应性进化

IF 5.9 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122880

Min Jiang, Xinman Li, Shuiqing Yu, Junjie Ren, Wei Liu, Yuhan Sun, Zijie Zhang, Jinmao Wang, Minsheng Yang

引用次数: 0

Multi-omics integration uncovers terpenoid-centered plant-microbe interactions underpinning the adaptive resilience of Thuja sutchuenensis 多组学整合揭示了以萜类化合物为中心的植物-微生物相互作用，支撑了苏楚树的适应能力

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-10 DOI: 10.1016/j.indcrop.2026.122873

You-wei Zuo , Yang Peng , Sheng-mao Zhou , Shi-qi You , Yan-ru Chen , Sheng-qiao Liu , Quan Yang , Ling-xiang Yang , Hong-ping Deng

Understanding the interaction among metabolites, microbes, and gene regulation is crucial for deciphering plant adaptation in extreme habitats. Here, we integrated metabolomic, metagenomic, and transcriptomic analyses to investigate the terpenoid-centered plant-microbe interactions of the endangered conifer Thuja sutchuenensis across natural, restored, and cultivated populations. LC-MS/MS profiling revealed that natural populations accumulate higher levels of terpenoids, flavonoids, and phenolic derivatives. Metagenomic analysis showed that Actinobacteria- and Bradyrhizobium-dominated microbial communities were functionally enriched in terpenoid-backbone, monoterpenoid, and xenobiotic-degradation pathways, indicating strong microbial specialization within the limestone rhizosphere. Transcriptomic profiling of roots showed coordinated alterations of key pathway genes (HMGR, DXS, SQE1, SS1, and VTE4). These transcriptional changes were accompanied by the expression of downstream oxidoreductases and cytochrome P450s, supporting terpenoid diversification and antioxidant capacity. Cross-omics correlation networks revealed strong associations among terpenoid-related genes, metabolites, and Actinobacteria taxa, highlighting a metabolic feedback loop that links microbial symbiosis with host secondary metabolism. Integrative analyses further suggested that wild populations maintain a more complex and functionally interconnected host-microbe system than cultivated ones. Collectively, these findings uncover a finely tuned plant-microbe-metabolite regulatory network that underpins the adaptive plasticity of T. sutchuenensis and provide a molecular framework for microbiome-assisted conservation, restoration, and sustainable management of this relict conifer species.

了解代谢物、微生物和基因调控之间的相互作用对于破译植物在极端栖息地的适应至关重要。在这里，我们整合了代谢组学、宏基因组学和转录组学分析，研究了濒危针叶树苏川树（Thuja sutchuenensis）在自然、恢复和栽培种群中以萜类化合物为中心的植物-微生物相互作用。LC-MS/MS分析显示，天然种群积累了较高水平的萜类、类黄酮和酚类衍生物。宏基因组分析表明，放线菌和慢生根瘤菌主导的微生物群落在萜类主干、单萜类和外源降解途径上功能丰富，表明石灰岩根际微生物具有很强的特化性。根系转录组学分析显示，关键通路基因（HMGR、DXS、SQE1、SS1和VTE4）发生了协同改变。这些转录变化伴随着下游氧化还原酶和细胞色素p450的表达，支持萜类化合物多样化和抗氧化能力。交叉组学相关网络揭示了萜类相关基因、代谢物和放线菌类群之间的强关联，突出了微生物共生与宿主次生代谢之间的代谢反馈回路。综合分析进一步表明，野生种群比栽培种群保持更复杂和功能互联的宿主-微生物系统。总的来说，这些发现揭示了一个精细调节的植物-微生物-代谢物调节网络，该网络支撑了苏川针叶树的适应性可塑性，并为微生物组辅助的苏川针叶树的保护、恢复和可持续管理提供了一个分子框架。

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引用次数: 0

Breaking the repulsive linkage between fiber strength and yield in a cotton (Gossypium hirsutum L.) MAGIC population suggests dampening starvation responses can increase yield 打破棉花纤维强度与产量之间的排斥性连锁MAGIC种群表明抑制饥饿反应可以提高产量

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122857

Gregory N. Thyssen , David D. Fang , Linghe Zeng , B. Todd Campbell , Don C. Jones , Jack C. McCarty , Johnie N. Jenkins

High yield is one of the most desirable traits in crops. A negative correlation between yield and other desirable traits in crops may be due to either pleiotropy or repulsive linkage. Multi-parent advanced generation inter-cross (MAGIC) populations create opportunities for novel combinations of alleles of genes from several parents to exist in one recombinant inbred line. Here, we describe the breaking of the repulsive linkage between yield (YLD) and cotton fiber strength (STR) at Chr. Ghi_A07:90 Mb in a Gossypium hirsutum L. MAGIC population. The loss of a PHL3-like gene (Ghi_A07G11906) may dampen the phosphate (Pi) starvation response, and attenuate a reallocation of resources to root growth at the expense of vegetative and reproductive growth, and thus a reduction in yield. Targeted mutagenesis of transcription factors that modulate abiotic stress responses may be a generalizable strategy for yield improvement in farmed crops.

高产是农作物最理想的特性之一。产量与作物其他理想性状之间的负相关可能是由于多效性或排斥连锁。多亲本高级代交叉（MAGIC）群体为来自多个亲本的等位基因的新组合在一个重组自交系中存在创造了机会。在这里，我们描述了产量（YLD）和棉纤维强度（STR）之间的排斥联系在Chr上的断裂。Ghi_A07:90 棉棉L. MAGIC群体中的Mb。phl3样基因（Ghi_A07G11906）的缺失可能会抑制磷酸盐（Pi）饥饿反应，并以牺牲营养和生殖生长为代价，减弱资源对根系生长的重新分配，从而降低产量。调控非生物胁迫反应的转录因子的靶向诱变可能是提高农作物产量的一种普遍策略。

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引用次数: 0

Controllable fabrication of chitosan-lignocellulose aerogels derived from agricultural waste and their enhanced mechanism in oil-water separation 农业废弃物壳聚糖-木质纤维素气凝胶的可控制备及其油水分离机理研究

IF 5.9 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122879

Zhengxin Miao, Jiawei Wu, Quan Wang, Lei Yu, Rongping Chen

As oil pollution continues to pose serious environmental threats, the development of efficient and eco-friendly materials for its remediation has become increasingly important. In this study, six types of deep eutectic solvents (DESs) were used to treat corn stalks, yielding cellulose-rich materials that were subsequently combined with chitosan to fabricate aerogels designed for oil–water separation. The resulting aerogels exhibited high oil–water separation efficiency, achieving over 95 % in the initial cycle and retaining efficiencies above 90 % after at least five reuse cycles. They also exhibited excellent mechanical strength, demonstrating 95 % height recovery after 50 compression cycles at 50 % strain, along with stable stress–strain behavior. Furthermore, the aerogels were amphiphilic in air (contact angle < 90°) and superoleophobic underwater (contact angle > 150°), making them highly suitable for efficient oil–water separation. This study is the first to utilize DES-treated cellulose-rich biomass for the fabrication of aerogels. The DES treatment facilitated precise control over the surface properties of the materials. Moreover, the small amount of lignin retained within the biomass contributed to reinforcing the aerogel network, thereby enhancing its mechanical stability. Compared to conventional approaches, this method not only provides an effective solution for mitigating oil pollution but also adds value to agricultural waste. The resulting aerogels surpass many recently reported cellulose-based aerogels in terms of separation efficiency, recyclability, and environmental safety, presenting a promising green technology for water treatment and pollution control.

随着石油污染对环境的持续威胁，开发高效、环保的修复材料变得越来越重要。在本研究中，使用六种深度共晶溶剂（DESs）处理玉米秸秆，得到富含纤维素的材料，然后与壳聚糖结合制备用于油水分离的气凝胶。所得气凝胶表现出较高的油水分离效率，在初始循环中达到95% %以上，在至少5次重复使用循环后保持90% %以上的效率。它们还表现出优异的机械强度，在50次压缩循环后，在50% %的应变下，显示出95% %的高度恢复，以及稳定的应力-应变行为。此外，气凝胶在空气中具有两亲性（接触角<； 90°），在水下具有超疏油性（接触角>； 150°），非常适合用于高效油水分离。这项研究是第一次利用des处理的富含纤维素的生物质来制造气凝胶。DES处理有助于对材料表面性能的精确控制。此外，生物质中保留的少量木质素有助于加强气凝胶网络，从而提高其机械稳定性。与传统方法相比，该方法不仅为减轻石油污染提供了有效的解决方案，而且还增加了农业废弃物的价值。由此产生的气凝胶在分离效率、可回收性和环境安全性方面超过了最近报道的许多纤维素基气凝胶，为水处理和污染控制提供了一种有前途的绿色技术。

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引用次数: 0

Sustainable utilization of distiller’s dried grains with solubles: Ammonium polyphosphate bonded particleboard with enhanced strength and flame retardancy 酒糟干粮与可溶物的可持续利用：聚磷酸铵结合刨花板，增强了强度和阻燃性

IF 5.9 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122828

Xingping Zuo, Yunhang Zeng, Zhangjun Huang, Bi Shi, Weixing Xu, Hui Qin, Jiaping Yang, Pan Song

The Chinese Baijiu industry produces over one billion tons of distiller’s dried grains with solubles (DDGS) annually, posing a significant environmental challenge. Traditional methods of utilization are hindered by numerous limitations, including insufficient treatment, low-value processing, and high energy consumption. In this study, ammonium polyphosphate (APP), an inorganic adhesive, was employed to bond DDGS for its materialization. APP self-condensed to intensify its van der Waals force attraction to DDGS—eschewing any chemical reaction with DDGS, resulting in the formation of DB-APP4, which exhibits optimal mechanical properties unaffected by variations in DDGS reactivity. With a modulus of rupture of 12.48 MPa, a modulus of elasticity of 2221.65 MPa, an internal bond strength of 0.56 MPa, and a thickness swelling rate of 5.53 %, DB-APP4 satisfies the fundamental performance criteria for particleboard as outlined in ISO 16978:2003. Furthermore, owing to APP’s ability to catalyze the formation of a protective carbon layer on the material surface while preserving the high porosity characteristic of biomass, the flame retardancy of DB-APP4 has reached Class B₁. This study not only addresses the challenge of effectively repurposing DDGS but also provides a pioneering and practical approach for the industrial application of DDGS-based particleboards.

中国白酒行业每年生产超过10亿吨的干粮和可溶物（DDGS），这对环境构成了重大挑战。传统的利用方法受到许多限制的阻碍，包括处理不足、低价值加工和高能耗。本研究采用无机胶粘剂聚磷酸铵（APP）粘接DDGS，使其物化。APP自缩聚增强其对DDGS的范德华力吸引力，避免与DDGS发生任何化学反应，从而形成DB-APP4，其力学性能不受DDGS反应性变化的影响。DB-APP4的断裂模量为12.48 MPa，弹性模量为2221.65 MPa，内部粘结强度为0.56 MPa，厚度膨胀率为5.53 %，满足ISO 16978:2003中刨花板的基本性能标准。此外，由于APP能够在保持生物质高孔隙特性的同时，催化在材料表面形成保护碳层，DB-APP4的阻燃性达到B1级。本研究不仅解决了DDGS有效再利用的挑战，而且为DDGS基刨花板的工业应用提供了一种开创性的实用方法。

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引用次数: 0

Dual gene engineering of SsdTPS and SsSCS boosted secondary metabolites synthesis and drought tolerance via activation of metabolic and stress signaling pathways SsdTPS和SsSCS的双基因工程通过激活代谢和胁迫信号通路促进了次生代谢物的合成和耐旱性

IF 6.2 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products

Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122810

Xiangyu Yao , Jiaqi Liu , Can Huang , Jianing Li , Jiawei Mo , Yu Gao , Fenggui Fan , Yingjuan Wang

In the face of escalating global climate change and water scarcity, deciphering and improving crop drought tolerance mechanisms has become a pivotal research focus in both agricultural and horticultural fields. The response and regulation of metabolite synthesis pathways in plants under stress play a crucial role in establishing stress tolerance mechanisms. Salvia sclarea, an aromatic crop that integrates both economic value and medicinal characteristics, has garnered significant attention in the horticultural and agricultural sectors due to its secondary metabolite, sclareol, which exhibits medicinal properties and aromatic traits. However, the potential effects of its synthetic pathways on the regulatory mechanism under water deficiency and the role of endogenous sclareol in drought stress tolerance remain elucidation. Our findings showed that drought stress triggered the up-regulation of gene SsSCS in the sclareol synthesis pathway. Ectopic co-overexpression of the two sclareol synthesis genes (SsdTPS, SsSCS) in transgenic N. benthamiana positively modulated the response and regulation to drought stress by up-regulating gene expression in the MEP pathway and ABA signaling pathway, and promoted the accumulation of sclareol and ABA within the plants. Meanwhile, the co-overexpression enhanced the expression of genes in the phenylpropanoid pathway and the response of the ROS scavenging system in transgenic plants, increased the lignin content in the plants, and reduced oxidative stress damage. These conferred the plants with an enhanced drought resistance phenotype, and increased the content of secondary metabolites. The findings provide theoretical support for investigating the regulatory mechanisms of drought stress in Salvia sclarea, advance functional studies of medicinal plant resources, and offer a novel perspective for breeding innovations aimed at improving drought tolerant crops.

面对日益加剧的全球气候变化和水资源短缺，破解和改进作物抗旱机制已成为农业和园艺领域的关键研究热点。植物在逆境下对代谢物合成途径的响应和调控在逆境抗性机制的建立中起着至关重要的作用。鼠尾草是一种集经济价值和药用特性于一体的芳香作物，由于其次生代谢产物sclareol具有药用特性和芳香特性，在园艺和农业领域受到了极大的关注。然而，其合成途径在缺水条件下的调控机制以及内源白核醇在干旱胁迫中的作用尚不清楚。我们的研究结果表明，干旱胁迫触发了蜜核醇合成途径中SsSCS基因的上调。转基因benthamiana两种核核醇合成基因（SsdTPS、SsSCS）异位共过表达通过上调MEP通路和ABA信号通路的基因表达，正向调节了植物对干旱胁迫的响应和调控，促进了核核醇和ABA在植物体内的积累。同时，共过表达增强了转基因植物中苯丙素通路基因的表达和ROS清除系统的应答，增加了植物中的木质素含量，减轻了氧化胁迫损伤。这使植株具有增强的抗旱表型，并增加了次生代谢物的含量。该研究结果为探究鼠尾草干旱胁迫的调控机制、推进药用植物资源的功能研究提供了理论支持，并为耐旱作物的育种创新提供了新的视角。

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引用次数: 0