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Restoration of continuous cropping obstacles by microbial inoculants and mineral amendment in flue-cured tobacco 利用微生物接种剂和矿物改良剂修复烤烟连作障碍
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-03-12 DOI: 10.1016/j.indcrop.2026.122995
Chen Wang , Qi Miao , Yong Zhang , Lu Liu , Juan Li , Guoming Zhao , Yanming Yang , Kun Huang , Mingzhen Xing , Youtao Ning , Zhenling Cui , Junwei Sun , Yanbin Guo
Continuous cropping obstacles (CCOs) impair soil health and reduce crop yields, posing a significant challenge to agricultural sustainability. Tobacco is a vital economic crop worldwide. For shortage of arable land, tobacco suffers economic losses attributed to CCOs. To address tobacco CCOs, we conducted a 2-year field experiment utilizing microbial inoculants coupled with a mineral soil amendment (tobermorite). Compared to the control, the combined application of microbial inoculants (Bacillus velezensis K01 and Streptomyces xylanolyticus B75) with tobermorite significantly increased yield by 15.8% and economic value by 32.9%; reduced the disease index by 73.8% of black root rot caused by Fusarium spp.; and enhanced the absorption of mineral nutrients, increasing the leaf contents of boron (B), iron (Fe), and magnesium (Mg) by 45.0%, 65.7%, and 40.1%, respectively. Microbial inoculants and mineral soil amendment modulated the soil bacterial and fungal community structures, increasing bacterial and fungal richness, reducing the abundance of pathogens such as Fusarium, enriching beneficial native bacterial genera such as Pseudomonas, and increasing the number of nodes and edges in the fungal network. Path analysis revealed that fungal community abundance was a critical positive driver of flue-cured tobacco yield.
连作障碍损害土壤健康,降低作物产量,对农业可持续性构成重大挑战。烟草是全球重要的经济作物。由于耕地短缺,烟草遭受cco造成的经济损失。为了解决烟草CCOs,我们进行了为期2年的田间试验,利用微生物接种剂和矿物土壤改良剂(托贝莫来石)。与对照相比,微生物接种剂(芽孢杆菌K01和解木链霉菌B75)与托贝莫来石联合施用,产量显著提高15.8%,经济价值显著提高32.9%;将镰刀菌黑根腐病的病害指数降低73.8%;促进了对矿质养分的吸收,使叶片中硼(B)、铁(Fe)和镁(Mg)含量分别提高了45.0%、65.7%和40.1%。微生物接种剂和矿质土壤改良剂调节了土壤细菌和真菌群落结构,增加了细菌和真菌的丰富度,降低了镰刀菌等病原体的丰度,丰富了假单胞菌等有益的原生细菌属,增加了真菌网络中的节点和边缘数量。通径分析表明,真菌群落丰度是烤烟产量的重要正驱动因子。
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引用次数: 0
A glycoprotein from Salvia miltiorrhiza bunge: Insights into their chemical characteristics and antioxidant activity 从丹参中提取的糖蛋白:对其化学特性和抗氧化活性的研究
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-11 DOI: 10.1016/j.indcrop.2026.122876
Haiqiang Zhang , Kanglin Liu , Linlin Zheng , Jingyi Zhang , Yurun Xue , Junxue Li , Anqi Lu , Yanzhong Chang , Shengjiang Guan , Jie Cheng
A glycoprotein (DSGP) from Salvia miltiorrhiza Bunge was purified by Tris-HCl extraction followed by DEAE-52 ion exchange chromatography. The approximate molecular weight (25.0 kDa) and monomeric nature were determined by reduced and non-reduced SDS-PAGE. The structure of DSGP was characterized by a practical and reliable “protein-polysaccharide analyzed by spectroscopy combined with chemical analysis” strategy. This study is the first to demonstrate that DSGP is an O-linked glucomannan protein, wherein its glycan moiety is a glucomannan chain with an average degree of polymerization (DP) of approximately 7. Hemagglutination assays confirmed that DSGP lacks lectin activity, indicating favorable safety properties. DSGP exhibits significant free radical scavenging activity and a unique advantage over ascorbic acid, namely that it does not produce hydrogen peroxide (H₂O₂) when exerting its antioxidant effects. In addition, as a hydrophilic colloid, DSGP can inhibit the sedimentation of pulp particles by enhancing electrostatic repulsion within the system, thereby exerting an excellent stabilizing effect on fruit juices. Therefore, these results suggested that glycoprotein DSGP could be used as a natural antioxidant and stabilizer in beverage industry.
采用Tris-HCl萃取,DEAE-52离子交换层析纯化丹参糖蛋白(DSGP)。通过还原和非还原SDS-PAGE测定了其近似分子量(25.0 kDa)和单体性质。采用实用可靠的“蛋白质-多糖光谱结合化学分析”策略对DSGP进行了结构表征。本研究首次证明了DSGP是一种o键型葡甘露聚糖蛋白,其中其聚糖部分是一个平均聚合度(DP)约为7的葡甘露聚糖链。血凝试验证实DSGP缺乏凝集素活性,表明其具有良好的安全性。DSGP具有显著的自由基清除活性和抗坏血酸的独特优势,即在发挥其抗氧化作用时不会产生过氧化氢(H₂O₂)。此外,DSGP作为一种亲水性胶体,可以通过增强体系内的静电斥力来抑制果肉颗粒的沉降,从而对果汁起到极佳的稳定作用。综上所述,糖蛋白DSGP可作为饮料工业的天然抗氧化剂和稳定剂。
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引用次数: 0
Tobacco biochar-loaded with soluble fertilizer enhances the yield and quality of Nicotiana tabacum: an in-situ field study 烟草生物炭负载可溶性肥料提高烟草产量和品质的现场研究
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 DOI: 10.1016/j.indcrop.2026.123067
Shaopeng Cui, Xiaopeng Deng, Qian Yao, Junying Li, Jun Chen, Zhikang Teng, Lingtong Quan, Kun Duan, Yan Xia
A novel soil amendment, TBLSF, was developed by combining tobacco waste-derived biochar (TB) with a soluble fertilizer (SF). Its synergistic effects on tobacco yield, leaf quality, and soil health were evaluated through in-situ field experiments. Application of TBLSF significantly enhanced tobacco growth, increasing plant height by 13.35–15.51%, maximum leaf area by 28.22%, and shoot fresh weight by 1.71-fold. Simultaneously, TBLSF improved leaf chemical quality by increasing potassium (K+) and phosphorus (P) concentrations in upper leaves by 36.8% and 38.6%, respectively, elevating the K+/Cl ratio by 36.2%, and enhancing soluble sugar content by 47.2%. Regarding soil health, TBLSF increased rhizosphere soil cation exchange capacity (CEC) by 28.80% and available phosphorus by 89.49%, accompanied by significant increases in urease and acid phosphatase activities. Microbial community analysis further revealed that TBLSF enriched beneficial bacterial populations while suppressing pathogenic fungi. In conclusion, TBLSF acts as a dual-functional amendment that enhances both tobacco productivity and quality while improving soil physicochemical and microbial properties, demonstrating its strong potential for sustainable tobacco cultivation.
将烟草废弃物生物炭(TB)与可溶性肥料(SF)相结合,开发了一种新型土壤改良剂TBLSF。通过田间试验,评价了其对烟草产量、叶片品质和土壤健康的协同效应。施用TBLSF显著促进了烟草生长,株高提高13.35 ~ 15.51%,最大叶面积提高28.22%,茎鲜重提高1.71倍。同时,TBLSF改善叶片化学品质,使叶片上部钾(K+)和磷(P)浓度分别提高36.8%和38.6%,K+/Cl -比提高36.2%,可溶性糖含量提高47.2%。在土壤健康方面,TBLSF使根际土壤阳离子交换量(CEC)提高28.80%,有效磷提高89.49%,脲酶和酸性磷酸酶活性显著提高。微生物群落分析进一步表明,TBLSF在增强有益菌群的同时抑制致病真菌。综上所述,TBLSF作为一种双重功能改良剂,在提高烟草产量和质量的同时,改善土壤理化和微生物特性,显示出其在烟草可持续种植方面的强大潜力。
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引用次数: 0
Thermal curing of Tung oil for hydrophobic and recyclable cellulose-based packaging 疏水和可回收纤维素基包装用桐油的热固化
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-11 DOI: 10.1016/j.indcrop.2026.122858
Giorgia Giusti , Julien Bras , Eleonora Balducci , Fabrizio Pucci , Fiorenzo Parrinello , Naceur Belgacem , Chiara Gualandi
The extensive use of synthetic plastic-based materials in packaging raises serious environmental and health concerns, driving the search for sustainable alternatives. Cellulose, as a renewable bio-based polymer, presents a promising solution; however, its hydrophilicity restricts its application in moisture-sensitive environments. The incorporation of bio-based coatings can enhance water resistance, yet scalable and efficient strategies remain a challenge in the food and beverage packaging sector. In this study, we present a fully bio-based coating system based on thermally polymerized Tung oil for producing functional cellulose-based materials with enhanced hydrophobicity. The influence of coating thickness, curing temperature, and curing time was investigated through ATR-FTIR, DSC, and TGA analyses, identifying 170 °C for 20 min as the optimal condition to achieve total crosslinking. After dispersion in dimethyl carbonate, Tung oil was applied to cellulose sheets and thermally cured, resulting in significantly improved water repellence while complying with European food contact regulations, as demonstrated by migration tests. Notably, the system was successfully integrated into commercial cellulose substrates, enabling the thermo-forming of 3D structures. Even at only 1 w/w % Tung oil loading, the water absorption of cellulose cups decreased by over 90 % compared to uncoated samples. Furthermore, recyclability tests confirmed that the thermo-formed cellulose objects treated with Tung oil remain completely recyclable into the paper stream. This study proposes a sustainable and potentially scalable strategy for the production of fully bio-based, recyclable, food compliant, and hydrophobic cellulose-based materials, offering a promising alternative to conventional plastic-based materials.
在包装中广泛使用合成塑料基材料引起了严重的环境和健康问题,促使人们寻找可持续的替代品。纤维素作为一种可再生的生物基聚合物,是一种很有前途的解决方案;然而,其亲水性限制了其在水分敏感环境中的应用。生物基涂料的结合可以增强耐水性,但可扩展和高效的策略仍然是食品和饮料包装领域的一个挑战。在这项研究中,我们提出了一种基于热聚合桐油的全生物基涂层体系,用于生产具有增强疏水性的功能性纤维素基材料。通过ATR-FTIR、DSC和TGA分析,考察了涂层厚度、固化温度和固化时间的影响,确定170°C、20 min是实现全交联的最佳条件。在碳酸二甲酯中分散后,将桐油涂在纤维素片上并进行热固化,结果显着提高了拒水性,同时符合欧洲食品接触法规,这是由迁移测试证明的。值得注意的是,该系统成功地集成到商用纤维素基质中,实现了3D结构的热成型。即使只有1 w/w %的桐油负荷,纤维素杯的吸水率也比未涂覆的样品下降了90% %以上。此外,可回收性测试证实,用桐油处理的热形成的纤维素物体仍然完全可回收到纸流中。这项研究提出了一种可持续的、潜在的可扩展策略,用于生产完全生物基的、可回收的、符合食品要求的、疏水的纤维素基材料,为传统的塑料基材料提供了一种有前途的替代品。
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引用次数: 0
Full-length transcriptome and RNA-Seq analyses offer new insights into the mechanisms underlying early bolting in Peucedanum praeruptorum Dunn (Apiaceae) 全长度转录组和RNA-Seq分析为前花楸(Apiaceae)早期抽苔机制提供新见解
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-12 DOI: 10.1016/j.indcrop.2026.122851
Mengli Zhou, Qi Wang, Siyu Chen, Weiyi Tang, Zongsuo Liang, Ruihong Wang
Peucedanum praeruptorum Dunn, known as “Qianhu”, is a perennial herb with high value in traditional Chinese medicine. However, early bolting during cultivation significantly reduces both quality and yield, posing major challenges for its agricultural and industrial application. Our study systematically examined phenotypic traits, enzyme activity, and the levels of active ingredients. We also applied exogenous hormones to assess their effects on bolting and yield. Furthermore, we integrated second- and third-generation transcriptomic sequencing to identify genes associated with bolting. Comparative phenotypic analysis showed that both aboveground and underground parts grew more rapidly in bolting plants than in unbolting individuals. We observed increased enzyme activities such as POD and SOD, and higher MDA content in bolting plants, while CAT and APX activities decreased. A total of 452,720 ROI sequences were obtained from the PacBio platform, comprising 726,045,259 bases with an average length of 1603 base pairs. Enrichment analysis of differentially expressed genes identified two critical pathways associated with bolting: the photoperiod and vernalization pathways. Weighted gene co-expression network analysis identified seven genes associated with bolting: NAC078, NFYC3, VOZ1, BRN1, CRY2, COL5, and 3-MMP. Overall, this study identifies key candidate genes and co-expression networks associated with early bolting in P. praeruptorum, providing new insights into its transcriptional regulatory mechanisms.
前胡(Peucedanum praophytorum Dunn),素有“千胡”之称,是一种具有较高药用价值的多年生草本植物。然而,在栽培过程中过早抽苔会严重降低其质量和产量,给其农业和工业应用带来重大挑战。我们的研究系统地检查了表型性状、酶活性和活性成分的水平。我们还应用了外源激素来评估它们对抽苔和产量的影响。此外,我们整合了第二代和第三代转录组测序来鉴定与抽苔相关的基因。比较表型分析表明,抽苔植株地上部和地下部的生长速度均快于未抽苔植株。抽苔植株POD、SOD等酶活性升高,MDA含量升高,CAT和APX活性降低。PacBio平台共获得452,720个ROI序列,包含726,0455,259个碱基,平均长度为1603个碱基对。差异表达基因的富集分析确定了与抽苔相关的两个关键途径:光周期和春化途径。加权基因共表达网络分析鉴定出7个与抽地相关的基因:NAC078、NFYC3、VOZ1、BRN1、CRY2、COL5和3-MMP。总的来说,本研究确定了与praproctorum早期抽苔相关的关键候选基因和共表达网络,为其转录调控机制提供了新的见解。
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引用次数: 0
High-quality chromosome-level genome assembly of Arnebia euchroma reveals insights into ecological adaptability and shikonin biosynthesis 高质量染色体水平的紫草基因组组装揭示了生态适应性和紫草素的生物合成
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-12 DOI: 10.1016/j.indcrop.2026.122874
Tianqi Sun , Yuman Tang , Min Yang , Xuan Ma , Huaxia Qin , Chun Sui
Arnebia euchroma (Royle) I. M. Johnst. is known for producing shikonin, a purplish-red bioactive compound in its roots. This perennial Boraginaceae herb is widely distributed in the frigid Pamir Knot of Asia, and has been extensively utilized in medicine, textile, food and cosmetics industries. Using PacBio and Hi-C technologies, we sequenced and assembled its chromosome-level genome of 2.51 Gb, with Contig N50 at 39.20 Mb and Scaffold N50 at 364.98 Mb. A total of 37,166 protein-coding genes were annotated. Comparative genomic and phylogenomic analyses were performed to explore the molecular basis of its ecological adaptability and evolutionary history. An exceptionally high TEs content of 79.51 % was observed, with two LTR-RTs insertion bursts occurring within the past 0–1 million years, suggesting that A. euchroma may still be in a stage of rapid evolution. Compared with phylogenetic ancestors, A. euchroma shows the expansion of stress resistance gene families that partly explains its genetic adaptation to high-altitude environments. Significant CYP76B subfamily expansion was found, and Aeu01G026690 was first identified as potentially encoding enzyme catalyzing GHQ-3"-OH to deoxyshikonin. Integrated transcriptomic and metabolomic analyses show that deoxyshikonin-to-shikonin step is the key in the difference of shikonin and derivatives between bark and xylem. This high-quality genomic resource offers deeper insights into A. euchroma's mechanisms of adaptive evolution and shikonin biosynthesis and provides a foundation for plant evolutionary biology and synthetic biology research of A. euchroma, facilitating the conservation and breeding of this species as well as other endangered plant resources in the Boraginaceae family.
紫红草(Royle)。以生产紫草素而闻名,紫草素是一种紫红色的生物活性化合物。龙葵科多年生草本植物,广泛分布于亚洲寒冷的帕米尔结,在医药、纺织、食品和化妆品等行业有广泛的应用。利用PacBio和Hi-C技术,我们对其染色体水平基因组2.51 Gb进行了测序和组装,其中Contig N50为39.20 Mb, Scaffold N50为364.98 Mb。共注释了37166个蛋白编码基因。通过比较基因组学和系统基因组学分析,探讨其生态适应性和进化历史的分子基础。TEs含量高达79.51 %,在过去的0 ~ 100万年中发生了两次LTR-RTs插入爆发,表明a . euchroma可能仍处于快速进化阶段。与系统发育上的祖先相比,拟南芥显示出抗逆基因家族的扩展,这在一定程度上解释了其对高海拔环境的遗传适应。发现CYP76B亚家族显著扩增,Aeu01G026690首次被鉴定为潜在编码酶,催化GHQ-3 ' -OH生成脱氧紫草素。综合转录组学和代谢组学分析表明,脱氧紫草素到紫草素的步骤是树皮和木质部中紫草素及其衍生物差异的关键。这一高质量的基因组资源有助于深入了解紫草的适应进化机制和紫草素的生物合成机制,为紫草的植物进化生物学和合成生物学研究奠定基础,为紫草及其他紫草科濒危植物资源的保护和育种提供依据。
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引用次数: 0
Unraveling the genetic architecture and candidate genes underlying dynamic growth in Populus deltoides ‘Danhong’× Populus simonii ‘Tongliao1’ deltoides ‘ Danhong ’ × Populus simonii ‘ Tongliao1 ’动态生长遗传结构及候选基因的揭示
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-14 DOI: 10.1016/j.indcrop.2026.122871
Jinhong Tian , Xinglu Zhou , Miaomiao Zhang , Lijuan Wang , Tongming Yin , Lei Zhang , Jianjun Hu
Plant growth, particularly in perennial tree species, is a dynamic trait governed by multiple factors including temporal variation and environmental influences. Although numerous quantitative trait locus (QTL) mapping studies have focused on phenotypes at specific time-points, the genetic architecture of dynamic growth traits remains poorly understood. In this study, we conducted a dynamic characterization analysis of seedling height (SH) and ground diameter (GD) in hybrid population of Populus deltoides ‘Danhong’ (DHY) × Populus simonii ‘Tongliao1’ (XYY) during the first growth season. Integrated Fun-map and FVT-map analyses identified eight overlapping QTLs associated with poplar dynamic growth in poplar, which displayed late expression patterns throughout the first growth season. Based on tissue expression pattern, six genes with high expression in pre-dormant bud, phloem and xylem were preliminarily identified as candidate genes associated with poplar growth. Among them, ARABINOKINASE coding gene PtARA1 was identified, which plays important roles in keeping the balance of L-arabinose in plant cell wall. eQTL analysis revealed that a non-synonymous single nucleotide variation (SNV) at the exon region of PtWRKY89 significantly increased the expression level of PtARA1 in xylem. The individuals carrying this variation exhibited poorer growth than those without it, which further proves the crucial role of PtARA1 and PtWRKY89 in poplar growth. This study provides mechanistic insights and candidate genetic targets for advancing poplar improvement through molecular breeding strategy.
植物的生长,特别是多年生乔木的生长,是一个受时间变化和环境影响等多种因素支配的动态特性。尽管大量的数量性状位点(QTL)定位研究集中在特定时间点的表型上,但动态生长性状的遗传结构仍然知之甚少。本研究对deloides ' Danhong ‘ (DHY) × Populus simonii ’ tong辽1 ' (XYY)杂交群体在第一个生长季的苗高(SH)和地径(GD)进行了动态表征分析。综合Fun-map和FVT-map分析,鉴定出8个与杨树动态生长相关的重叠qtl,这些qtl在杨树第一个生长季表现出较晚的表达模式。根据组织表达模式,初步确定了6个在休眠前芽、韧皮部和木质部高表达的基因作为杨树生长相关的候选基因。其中,鉴定出ARABINOKINASE编码基因PtARA1,该基因在维持l -阿拉伯糖在植物细胞壁的平衡中起重要作用。eQTL分析显示,PtWRKY89外显子区域的非同义单核苷酸变异(SNV)显著提高了木质部PtARA1的表达水平。携带PtARA1和PtWRKY89基因的个体在杨树生长过程中表现出较差的生长特性,进一步证明了PtARA1和PtWRKY89基因在杨树生长中的重要作用。该研究为通过分子育种策略推进杨树改良提供了机制见解和候选遗传靶点。
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引用次数: 0
Sustainable valorization of functional phytochemicals from Polygonum multiflorum using natural deep eutectic solvents (NADES) 天然深共熔溶剂(NADES)对何先乌中功能性植物化学物质的可持续增值研究
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-11 DOI: 10.1016/j.indcrop.2025.122498
Kyeong-Ok Choi , Yeongjun Ban , Youngmin Kang
This study applied a natural deep eutectic solvent (NADES) consisting of malic acid and choline chloride for bioactive compound extraction from Reynoutria multiflora (Thunb.) Moldenke (syn. Polygonum multiflorum thunb), an important medicinal and agricultural resource. Optimization with 10 % water addition yielded a 90 % NADES system that significantly improved viscosity and mass transfer. The optimized extract provided higher or comparable yields of 2,3,5,4′-tetrahydroxystilbene-2-O-β-D-glucoside (THSG), emodin, and physcion compared with hot water or 70 % ethanol extracts. It also showed the highest enrichment of polymeric tannins and exhibited superior antioxidant capacity across multiple assays. GC/MS-based profiling and PLS-DA revealed a distinct volatile spectrum, while the extract demonstrated strong lipid peroxidation inhibition and COX-2 suppression, indicating its multifunctional bioactivity. Beyond laboratory performance, this approach emphasizes industrial relevance. The use of food compatible NADES offers a biodegradable, safe, and industrially viable alternative to conventional solvents for efficient extraction of bioactive compounds. The enhanced phytochemical recovery and multifunctional activities highlight the potential of P. multiflorum as a renewable crop resource for high-value applications in functional foods, nutraceuticals, pharmaceuticals, and natural preservatives. Furthermore, the strategy may be extended to other underutilized crops and agricultural by-products, promoting circular economy practices and adding value to medicinal plant resources.
本研究采用由苹果酸和氯化胆碱组成的天然深共溶溶剂(NADES)提取多花鸡的生物活性成分。何首乌,一种重要的药用和农业资源。添加10% %水的优化得到了90% %的NADES体系,显著改善了粘度和传质。与热水或70% %乙醇提取物相比,优化后的提取物可提供更高或相当的2,3,5,4 ' -四羟基二苯乙烯-2- o -β- d -葡萄糖苷(THSG),大黄素和物理收率。它还显示了最高富集的聚合单宁,并表现出优异的抗氧化能力,跨越多个分析。GC/ ms和PLS-DA分析显示,该提取物具有明显的挥发性,具有较强的脂质过氧化抑制作用和COX-2抑制作用,具有多种生物活性。除了实验室性能,这种方法强调工业相关性。使用与食品相容的NADES提供了一种可生物降解的、安全的、工业上可行的替代传统溶剂,用于有效提取生物活性化合物。多花何首花具有较强的植物化学恢复能力和多种功能活性,是一种可再生作物资源,在功能食品、保健品、药品和天然防腐剂等方面具有很高的应用价值。此外,该战略可扩展到其他未充分利用的作物和农业副产品,促进循环经济做法并增加药用植物资源的价值。
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引用次数: 0
The JA signaling pathway modulates fruit branch internode development in Gossypium hirsutum L.: Insights from multi-omics investigations JA信号通路调控棉花果枝节间发育:来自多组学研究的见解
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-12 DOI: 10.1016/j.indcrop.2026.122887
Hongyue Xu , Xiaohu Ma , Qian-Hao Zhu , Fei Xue , Feng Liu , Yanjun Li , Shuaishuai Cheng , Xinyu Zhang , Jie Sun
The morphology of upland cotton (Gossypium hirsutum L.) fruit branches critically determines the architecture and photosynthetic capacity of cotton plants, as well as the adaptability to planting patterns and mechanical harvesting. While key genes involved in nulliplex branching have been identified in cotton, the molecular mechanisms underlying the development of various fruit branch types in upland cotton remain largely uncharacterized.
Based on phenotypic identification and cytological measurement, this study integrated hormone profiling and transcriptomic analyses of four upland cotton varieties exhibiting varying lengths of the first internode of fruit branches. The results revealed that the loose internode phenotype arises from enhanced longitudinal growth of epidermal and xylem cells. In the short fruit branch internode group, jasmonic acid (JA) and salicylic acid (SA) accumulated significantly. Among the 954 differentially expressed genes (DEGs) between varieties with long and short internode lengths, 53 genes related to shoot apical meristem (SAM) development, the JA signaling pathway, and flowering regulation were predominantly upregulated in the short-internode group, imply a possible synergistic mechanism underlying the negative regulation of fruiting branch internode elongation. DEGs were predominantly enriched in hormone-related signaling pathways, with a strong emphasis on jasmonate signaling. Notably, members of the JAZ (TIFY family) gene showed a strong correlation with internode length and hormone content. Silencing a JAZ gene TIFY11B (GH_A05G1405) in short-internode cotton resulted in elongated internodes. The exploration offers novel insights into the molecular mechanisms underlying the internodes development of cotton fruiting branch from the perspective of hormone signal transduction.
陆地棉(Gossypium hirsutum L.)果实枝条的形态决定了棉花植株的结构和光合能力,以及对种植方式和机械收获的适应性。虽然在棉花中已经确定了参与无分枝的关键基因,但陆地棉花中各种果实分枝类型发育的分子机制仍未明确。本研究在表型鉴定和细胞学检测的基础上,对4个果实枝条第一节间长度不同的陆地棉花品种进行了激素谱分析和转录组学分析。结果表明,节间疏松表型是由于表皮和木质部细胞纵向生长增强所致。短果枝节间组茉莉酸(JA)和水杨酸(SA)积累显著。在954个长短节间差异表达基因中,53个与茎尖分生组织发育、JA信号通路和开花调控相关的基因在短节间组中显著上调,表明短节间组对果枝节间伸长的负调控可能存在协同机制。deg主要富集于激素相关的信号通路,特别强调茉莉酸信号通路。值得注意的是,JAZ (TIFY家族)基因的成员与节间长度和激素含量有很强的相关性。在短节间棉花中沉默JAZ基因TIFY11B (GH_A05G1405)导致节间延长。本研究从激素信号转导的角度对棉花结实枝节间发育的分子机制提供了新的认识。
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引用次数: 0
A smart selenium-based nanopesticide for targeted fungicide delivery: Triple-action antifungal mechanism and sustainable management of Fusarium wilt in peanut 智能硒基纳米农药的靶向杀真菌剂递送:花生枯萎病的三效抗真菌机制和可持续管理
IF 6.2 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-03-15 Epub Date: 2026-02-14 DOI: 10.1016/j.indcrop.2026.122904
Wanqing Yao , Yuhua Zhang , Liying Yang , Pingjing Chang , Xianhu Liu , Guohua Zhong
Fusarium wilt, caused by Fusarium oxysporum (F. oxysporum), poses a significant threat to global crop production. Conventional fungicides such as carbendazim (CBZ) encounter substantial challenges, including single-target resistance, poor environmental stability, an effective utilization rate of less than 0.1 %, and biosafety concerns. To overcome these limitations and address the core bottlenecks of existing nanopesticides, we developed a novel intelligent nanopesticide (CBZ@Se-CS, CSC) through a straightforward non-covalent self-assembly of chitosan and selenium nanoparticles for targeted delivery of CBZ. CSC has an average particle size of approximately 129 nm and a zeta potential of + 43.1 mV. It exhibited an 85 % cumulative release rate in the acidic microenvironment (pH 5.0) that simulates fungal infection sites.In vitro antifungal assays demonstrated that CSC achieved an EC₅₀ of 0.139 mg/L, showing 4.35-fold higher efficacy compared to free CBZ. Its triple-target synergistic mechanism potentially disrupts fungal cell membranes, induces oxidative stress and inhibits virulence factor synthesis, which may help mitigate resistance risks. Furthermore, CSC exhibits bidirectional vascular translocation in plants, host defense priming capacity, robust environmental stability and minimal toxicity to non-target organisms. It also promotes peanut seed germination. Enabled by green and potentially scalable preparation, CSC may reduce chemical inputs while providing a practical solution for managing vascular-colonizing pathogens such as F. oxysporum. This work aligns with the UN Sustainable Development Goals for food security and sustainable agriculture, presenting an innovative paradigm for the design of eco-friendly smart nanopesticides.
由尖孢镰刀菌(Fusarium oxysporum)引起的枯萎病(Fusarium oxysporum)对全球作物生产构成重大威胁。多菌灵(CBZ)等传统杀菌剂面临着重大挑战,包括单靶点耐药性、环境稳定性差、有效利用率低于0.1% %以及生物安全问题。为了克服这些限制并解决现有纳米农药的核心瓶颈,我们通过壳聚糖和硒纳米颗粒的直接非共价自组装开发了一种新型智能纳米农药(CBZ@Se-CS, CSC),用于靶向递送CBZ。CSC的平均粒径约为129 nm, zeta电位为+ 43.1 mV。在模拟真菌感染部位的酸性微环境(pH 5.0)中,其累积释放率为85% %。体外抗真菌试验表明,CSC的EC₅0为0.139 mg/L,与游离CBZ相比,其功效高出4.35倍。其三靶点协同机制可能破坏真菌细胞膜,诱导氧化应激,抑制毒力因子合成,有助于减轻耐药风险。此外,CSC在植物中具有双向维管转运、寄主防御启动能力、强大的环境稳定性和对非目标生物的最小毒性。它还能促进花生种子发芽。通过绿色和潜在的可扩展制备,CSC可以减少化学投入,同时为管理血管定植病原体(如尖孢镰刀菌)提供实用的解决方案。这项工作符合联合国关于粮食安全和可持续农业的可持续发展目标,为设计生态友好型智能纳米农药提供了一种创新范例。
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Industrial Crops and Products
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