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Structural dominance and environmental modulation of carbon sequestration potential in subtropical Chinese fir plantations 亚热带杉木人工林固碳潜力的结构优势与环境调节
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122872
Guoqi Chen, Xiaowen Dou, Lang Huang, Zihao Liu, Chunxiao Liu, Xiang Zhang, Xiangdong Lei, Guangyu Zhu, Shuang Wu, Zhuoran Li
Cunninghamia lanceolata is an important industrial timber species in the subtropical regions of China, with substantial carbon sequestration value. However, continuous monoculture of Chinese fir plantations results in simplified stand structures and soil nutrient imbalances, reducing their carbon sequestration potential productivity (CSPP). In this study, we estimated the CSPP of 2110 typical Chinese fir plots in subtropical China and analyzed its driving mechanism based on the potential mean annual increment method, machine learning algorithms (random forest), and path models. CSPP demonstrated notable gradient changes across different developmental stages and carbon sequestration grades, ranging from 3.53 to 7.19 Mg ha⁻¹ yr⁻¹. Middle-aged forest stages exhibited the highest carbon sequestration, whereas the peaks for medium and low carbon sequestration occurred at more advanced stages of forest development. Stand structural factors, notably stand age, dominant height, and mean DBH, had a more pronounced effect on CSPP than that of abiotic factors like climate, geo-topographic, and soil, which influenced CSPP indirectly by modifying stand structure. For medium-sized sites and young forests, the combined effect of stand structure on CSPP exceeded 95 %. Therefore, corresponding density management strategies can be applied in this scenario to maximize productivity. For high site grades, with resource saturation, productivity was driven by unquantified genetic sources and intensive management strategies rather than environmental limitations. Overall, the diagnostic framework, focusing on the interaction between stand structure and environment, provides theoretical support for density regulation and adaptive carbon management across developmental stages, thereby enhancing the carbon sink potential and productivity of subtropical plantations.
杉木是中国亚热带地区重要的工业用材,具有丰富的固碳价值。然而,连续单作杉木人工林导致林分结构简化和土壤养分失衡,降低了杉木人工林的固碳生产力潜力。基于潜在平均年增量法、机器学习算法(随机森林)和路径模型,对中国亚热带2110个典型杉木样地的CSPP进行估算,并分析其驱动机制。CSPP在不同的发展阶段和碳封存等级之间表现出显著的梯度变化,范围从3.53到7.19 Mg ha⁻¹ yr⁻¹。森林中期固碳量最高,中低碳峰值出现在森林发展的后期。林分结构因子(林龄、优势高度和平均胸径)对CSPP的影响比气候、地理地形和土壤等非生物因子(通过改变林分结构间接影响CSPP)更为显著。对于中等立地和幼林,林分结构对CSPP的综合影响超过95% %。因此,在这种情况下,可以采用相应的密度管理策略来最大化生产力。对于资源饱和的高站点等级,生产力的驱动因素是未量化的遗传资源和集约化管理策略,而不是环境限制。总体而言,该诊断框架关注林分结构与环境的相互作用,为跨发育阶段的密度调节和适应性碳管理提供理论支持,从而提高亚热带人工林的碳汇潜力和生产力。
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引用次数: 0
Deep eutectic solvent–driven extraction of bioactive compounds from Artemisia rupestris L.: Enhancing nematicidal activity and tomato plant growth 深共熔溶剂萃取红蒿生物活性物质:提高杀线虫活性和番茄植株生长
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122864
Xue-mei Wang, Hui-dan Shi, Ting-ting Liu, Jia-jia Li, Hai-bo Wu
Root-knot nematodes (Meloidogyne incognita) pose a serious threat to global agriculture, necessitating eco-friendly alternatives to synthetic nematicides. This study explores the innovative use of deep eutectic solvents (DES) to extract bioactive compounds from Artemisia rupestris, offering a sustainable approach to nematode management. Six choline chloride (ChCl)-based DES systems were evaluated, revealing extraction efficiency dependent on the hydrogen-bond donor. ChCl–1,4-butanediol (But) yielded the highest thiophene content (143.65 μg/g), which was 2.9 fold greater than that obtained with ethanol. ChCl–urea (U) and ChCl–citric acid (CA) achieved the highest extraction efficiency for phenolics (267.78 mg/g) and flavonoids (175.32 mg/g), respectively. In vitro assays demonstrated that ChCl–But extracts showed the highest nematode mortality at 86.50 %. Thiophene content showed a strong correlation with bioactivity (r = 0.925), identifying it as the principal bioactive driver. Pot trials confirmed a dose-dependent efficacy, with ChCl–But extracts reducing root galling by 79.59 % and nematode populations by 81.65 %. Moreover, the extracts considerably enhanced tomato plant growth, outperforming the commercial nematicide abamectin. Field trials demonstrated that ChCl–But extracts reduced root galling by 68.37 % and second-stage juvenile nematode densities by 66.30 % while increasing tomato shoot biomass by 59.53 %. Five thiophene derivatives were isolated, exhibiting potent nematicidal activity, with xanthopappin A (compound 3) showing 4.8 fold greater efficacy (LD50 = 2.00 mg/L) than abamectin. This study highlights DES as a sustainable platform for valorizing underutilized plant resources, integrating efficient extraction of bioactive thiophenes with the dual benefits of nematode suppression and crop growth promotion. The findings offer scalable solution for sustainable agriculture, addressing environmental and resistance challenges in nematode management.
根结线虫(Meloidogyne incognita)对全球农业构成严重威胁,需要生态友好的替代品来替代合成的杀线虫剂。本研究探索了深度共熔溶剂(DES)的创新应用,从黄花蒿中提取生物活性化合物,为线虫管理提供了一种可持续的方法。对六种氯化胆碱(ChCl)基DES体系进行了评价,揭示了萃取效率与氢键供体的关系。chcl - 1,4-丁二醇(But)的噻吩含量最高(143.65 μg/g),是乙醇的2.9倍。chcl -尿素(U)和chcl -柠檬酸(CA)对酚类物质(267.78 mg/g)和黄酮类物质(175.32 mg/g)的提取率最高。体外实验表明,ChCl-But提取物的线虫死亡率最高,为86.50 %。噻吩含量与生物活性有较强的相关性(r = 0.925),是主要的生物活性驱动因子。盆栽试验证实了一种剂量依赖性的功效,chcl -但提取物可以减少79.59% %的根损伤,减少81.65 %的线虫数量。此外,提取物显著促进番茄植株生长,优于市面上的杀线虫剂阿维菌素。田间试验结果表明,chcl - a提取物可降低番茄根系损伤68.37 %,降低第二阶段幼线虫密度66.30 %,提高番茄茎部生物量59.53 %。分离得到5个噻吩衍生物,其中黄嘌呤A(化合物3)比阿维菌素的杀线虫活性高4.8倍(LD50 = 2.00 mg/L)。本研究强调了DES作为一个可持续的平台,可以利用未充分利用的植物资源,将有效提取生物活性噻吩与抑制线虫和促进作物生长的双重效益结合起来。这些发现为可持续农业提供了可扩展的解决方案,解决了线虫管理中的环境和抗性挑战。
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引用次数: 0
Corrigendum to “Trichoderma crassum secrets N, N′-diacetylchitobiose and indole-3-acetic acid to enhance the fibrous root formation in P. heterophylla”[Ind. Crop. Prod. 231 (2025) 121227] “砂木霉秘密N, N ' -二乙酰壳聚糖和吲哚-3-乙酸促进异叶木纤维根形成”的勘误[j]。作物。Prod. 231 (2025) 121227]
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2025.122210
Lingling Wang, Yanping Gao, Lang Qin, Jiayue Ran, Zan Li, Xianyan Xie, Yangjun Tan, Tao Zhou, Qing-Song Yuan
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引用次数: 0
Promotion of growth and secondary metabolism in Cyclocarya paliurus by Bacillus velezensis FZB42: Insights from rhizosphere nutrient, hormones and microbiome velezensis芽孢杆菌FZB42对青柳树生长和次生代谢的促进作用:来自根际营养、激素和微生物组的见解
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122846
Quan Lin, Jing Wang, Zhenbiao Fu, Shuntao Zhou, Shengzuo Fang, Zhikang Wang, Xiangxiang Fu
Cyclocarya paliurus (Batal.) Iljinskaja is a prominent medicinal plant for edible and pharmaceuticals, yet its practical application is highly constrained due to the limited production of secondary metabolites in the leaves and the growth-secondary metabolism trade-off. Inoculation with soil beneficial microorganisms is a sustainable strategy to stimulate the production of secondary metabolites and balance such trade-off. The pot experiment and field trials were assigned to investigate how Bacillus velezensis FZB42 affects the growth and production of secondary metabolites in C. paliurus by integrated underground profiles (native microbial community, nutrient availability, and hormone levels in the rhizosphere) and aboveground responses (nutrient acquisition, biomass, photosynthesis, and secondary metabolites in plants). The results from pot experiment presented the improvements not only in the plant biomass but also in secondary metabolites driven by FZB42. The field trials further preliminary substantiated the effects of inoculant on the growth-promotion and secondary-metabolism-enhancement. Based on potted plants, significant increments in root and leaf biomass of the inoculated plants were 1.75 and 1.52 times of the control, while the contents of flavonoids and triterpenoids reached 10.89 mg g−1 and 43.66 mg g−1, respectively, apparently higher than 7.90 mg g−1 and 35.91 mg g−1 in the control. Inoculation enhanced soil nutrient availability through increased extracellular enzyme activities, resulting in 190 % and 62.98 % increases in available nitrogen and phosphorus, respectively. Moreover, FZB42 application enriched specific native bacterial taxa (e.g., Gammaproteobacteria) and reshaped rhizosphere hormone profiles, including indole-3-acetic acid (IAA), salicylic acid (SA), and jasmonates (JA). Structural equation modeling further demonstrated that alterations in rhizosphere hormone levels mediated by specific native bacterial taxa exerted significant effects on plant secondary metabolism. These findings offer insights into the regulations of FZB42 on growth–metabolism trade-off in medicinal plants, and its potential application as a bio-inoculant in plantations of C. paliurus for medicinal use.
青环草(Batal.)金丝卡娅是一种重要的药用植物,但由于叶片中次生代谢产物的产生有限以及生长-次生代谢的权衡,其实际应用受到很大限制。接种土壤有益微生物是刺激次生代谢物产生并平衡这种权衡的可持续策略。采用盆栽试验和田间试验,通过综合地下剖面(根际原生微生物群落、养分有效性和激素水平)和地上响应(植物养分获取、生物量、光合作用和次生代谢物),研究了velezensis FZB42对黄颡鱼生长和次生代谢物产生的影响。盆栽试验结果表明,FZB42不仅提高了植物生物量,而且提高了次生代谢产物的含量。田间试验进一步初步证实了接种剂的促生长和促次生代谢作用。以盆栽植株为对照,接种后植株的根和叶生物量显著增加了1.75倍和1.52倍,黄酮类化合物含量分别达到10.89 mg g−1和43.66 mg g−1,明显高于对照的7.90 mg g−1和35.91 mg g−1。接种通过提高胞外酶活性提高土壤养分有效性,使速效氮和速效磷分别增加190 %和62.98 %。此外,FZB42的应用丰富了特定的原生细菌分类群(如Gammaproteobacteria),并重塑了根际激素谱,包括吲哚-3-乙酸(IAA)、水杨酸(SA)和茉莉酸盐(JA)。结构方程模型进一步表明,特定原生细菌类群介导的根际激素水平变化对植物次生代谢有显著影响。这些研究结果为FZB42在药用植物生长代谢平衡中的调控作用提供了新的线索,并为其作为药用补强剂在青柳人工林中的应用提供了可能。
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引用次数: 0
Deciphering anti-asthmatic components in loquat leaves (Eriobotrya japonica folium) by integrating network pharmacology, Mendelian randomization, and machine learning methods 通过整合网络药理学,孟德尔随机化和机器学习方法来破译枇杷叶(Eriobotrya japonica folium)中的抗哮喘成分
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122835
Shiwei Ma, Lixin Chen, Shuhong Wu, Guofeng Wu, Yajing Zheng, Wanyi Liu, Peiting Hu, Li Zhang, Guanpeng Huang, Samuel Tareke Woldegiorgis, Wei Liu, Lina Zhang, Yufang Ai, Jincheng Wu, Huaqin He
Eriobotrya japonica folium, a traditional Chinese medicine (TCM) derived from the dried loquat leaves, has been widely used for treating respiratory diseases. With the deterioration of global environment, the prevalence of asthma continues to rise worldwide. Loquat leaf acts on respiratory diseases at multiple levels, offering advantages for asthma management. However, the active constituents in loquat leaf for asthma treatment and the pharmacological mechanisms is unclear. Network pharmacology approach was applied to systematically elucidate the pharmacological mechanisms of loquat leaf active components against asthma. Based on comprehensive evaluation of structural features, number of potential targets, and network proximity Z-scores, 57 candidate anti-asthmatic compounds were screened from the extraction of loquat leaf. After that, 33 targeted genes by loquat leaf active components were identified using a dual-diffusion network algorithm, and enrichment analysis revealed their involvement in inflammatory response, immune regulation, and airway remodeling. The causal effects between critical targeted genes by loquat leaf active components and asthma were validated via Mendelian randomization. GSK3B and AKT1 elevated asthma risk, while MAPK3 and SRC conferred protection. Furthermore, the machine learning models based on targeted gene expression showed strong predictive performance for asthma classification. AKT1 and SRC exhibited high importance scores and significant differential expression between asthma patients and healthy controls. Finally, molecular docking showed 10 key components formed stable complexes with 8 asthma-related gene products. Quercetin, rutin, isorhamnetin, and EGCG in loquat leaf bound specifically to AKT1, GSK3B, MAPK3, and SRC, respectively. Totally, this study revealed the anti-asthmatic mechanisms of loquat leaf and offered a new perspective for investigating TCM complexity and synergy.
枇杷叶(Eriobotrya japonica folium)是一种从枇杷干叶中提取的中药,被广泛用于治疗呼吸系统疾病。随着全球环境的恶化,哮喘的患病率在世界范围内持续上升。枇杷叶在多个层面上对呼吸系统疾病起作用,为哮喘治疗提供了优势。然而,枇杷叶中有效成分对哮喘的治疗作用及其药理机制尚不清楚。应用网络药理学方法,系统阐明枇杷叶有效成分抗哮喘的药理机制。综合评价枇杷叶提取物的结构特征、潜在靶点数量和网络接近性z分数,筛选出57个抗哮喘候选化合物。随后,利用双扩散网络算法鉴定出枇杷叶活性成分的33个靶基因,富集分析发现它们参与炎症反应、免疫调节和气道重塑。通过孟德尔随机化验证枇杷叶活性成分关键靶基因与哮喘之间的因果关系。GSK3B和AKT1升高哮喘风险,而MAPK3和SRC则具有保护作用。此外,基于靶向基因表达的机器学习模型对哮喘分类显示出很强的预测性能。AKT1和SRC在哮喘患者和健康对照中表现出较高的重要性评分和显著的表达差异。最后通过分子对接发现,10个关键组分与8个哮喘相关基因产物形成稳定的复合物。枇杷叶中的槲皮素、芦丁、异鼠李素和EGCG分别与AKT1、GSK3B、MAPK3和SRC特异性结合。本研究揭示了枇杷叶的平喘作用机制,为研究中药的复杂性和协同作用提供了新的视角。
{"title":"Deciphering anti-asthmatic components in loquat leaves (Eriobotrya japonica folium) by integrating network pharmacology, Mendelian randomization, and machine learning methods","authors":"Shiwei Ma, Lixin Chen, Shuhong Wu, Guofeng Wu, Yajing Zheng, Wanyi Liu, Peiting Hu, Li Zhang, Guanpeng Huang, Samuel Tareke Woldegiorgis, Wei Liu, Lina Zhang, Yufang Ai, Jincheng Wu, Huaqin He","doi":"10.1016/j.indcrop.2026.122835","DOIUrl":"https://doi.org/10.1016/j.indcrop.2026.122835","url":null,"abstract":"<ce:italic>Eriobotrya japonica folium</ce:italic>, a traditional Chinese medicine (TCM) derived from the dried loquat leaves, has been widely used for treating respiratory diseases. With the deterioration of global environment, the prevalence of asthma continues to rise worldwide. Loquat leaf acts on respiratory diseases at multiple levels, offering advantages for asthma management. However, the active constituents in loquat leaf for asthma treatment and the pharmacological mechanisms is unclear. Network pharmacology approach was applied to systematically elucidate the pharmacological mechanisms of loquat leaf active components against asthma. Based on comprehensive evaluation of structural features, number of potential targets, and network proximity Z-scores, 57 candidate anti-asthmatic compounds were screened from the extraction of loquat leaf. After that, 33 targeted genes by loquat leaf active components were identified using a dual-diffusion network algorithm, and enrichment analysis revealed their involvement in inflammatory response, immune regulation, and airway remodeling. The causal effects between critical targeted genes by loquat leaf active components and asthma were validated via Mendelian randomization. GSK3B and AKT1 elevated asthma risk, while MAPK3 and SRC conferred protection. Furthermore, the machine learning models based on targeted gene expression showed strong predictive performance for asthma classification. AKT1 and SRC exhibited high importance scores and significant differential expression between asthma patients and healthy controls. Finally, molecular docking showed 10 key components formed stable complexes with 8 asthma-related gene products. Quercetin, rutin, isorhamnetin, and EGCG in loquat leaf bound specifically to AKT1, GSK3B, MAPK3, and SRC, respectively. Totally, this study revealed the anti-asthmatic mechanisms of loquat leaf and offered a new perspective for investigating TCM complexity and synergy.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"89 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic molecularly imprinted polymer for zearalenone in Coix: In-silico design and matrix-matched UPLC–MS/MS 玉米中玉米赤霉烯酮的磁性分子印迹聚合物:硅设计和基质匹配UPLC-MS /MS
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122859
Yinghong Ma, Juan Lu, Xin Liu, Zheng Hu, Xiangsheng Zhao, Dandan Kong, Zhonghao Sun, Weiheng Kong, Tianyu Wang, Zhaocui Sun, Guoxu Ma, Xudong Xu, Meihua Yang, Ting Shen, Haifeng Wu, Qiongyu Zou, Haitao Liu
Zearalenone (ZEN), a Fusarium-derived estrogenic mycotoxin, frequently contaminates Coix seeds and other grains, posing a food-safety and quality-control challenge because of the complex matrix and trace-level residue limits. Here, we developed a simulation-guided magnetic molecularly imprinted polymer (MMIP) for the rapid and selective enrichment of ZEN prior to LC–MS/MS determination. A pharmacophore model, DFT calculations, and molecular dynamics simulations were combined to identify cyclohexyl-1,4-benzenedicarboxylic acid (CDHB) as a suitable dummy template and to optimize a dual-monomer formulation (Boc-AG/MAA, ZEN: Boc-AG: MAA = 1:1:3) to strengthen complementary interactions. The resulting MMIP exhibited fast uptake (equilibrium reached in approximately 5 min), high selectivity (imprinting factor = 12.76), and a maximum adsorption capacity of 28.40 mg/g, as determined by Langmuir fitting of the equilibrium isotherms. The adsorbent also showed good reusability (≥10 adsorption–desorption cycles) with single-step desorption > 90 %. When coupled with matrix-matched LC–MS/MS, the method achieved a limit of quantification of 3.70 μg/kg and recoveries of 86.8–112.9 % for spiked Coix samples. This work demonstrates that integrating molecular simulation with magnetic imprinting enables an efficient, reusable cleanup strategy for trace ZEN monitoring in complex grain-based matrices.
玉米赤霉烯酮(ZEN)是一种镰孢菌衍生的雌性真菌毒素,经常污染薏薏籽和其他谷物,由于其复杂的基质和痕量残留限制,对食品安全和质量控制构成挑战。在这里,我们开发了一种模拟引导的磁性分子印迹聚合物(MMIP),用于在LC-MS /MS测定之前快速选择性富集ZEN。结合药效团模型、DFT计算和分子动力学模拟,确定了环己基-1,4-苯二羧酸(CDHB)为合适的虚拟模板,并优化了双单体配方(Boc-AG/MAA, ZEN: Boc-AG: MAA = 1:1:3),以加强互补作用。通过平衡等温线的Langmuir拟合,得到的MMIP吸附速度快(约5 min达到平衡),选择性高(印迹因子= 12.76),最大吸附量为28.40 mg/g。该吸附剂具有良好的可重复使用性(≥10次吸附-解吸循环),单步解吸率>; 90 %。结合基质匹配LC-MS /MS,该方法的定量限为3.70 μg/kg,加标回收率为868 ~ 112.9 %。这项工作表明,将分子模拟与磁印迹相结合,可以为复杂颗粒基矩阵中的痕量ZEN监测提供有效、可重复使用的清理策略。
{"title":"Magnetic molecularly imprinted polymer for zearalenone in Coix: In-silico design and matrix-matched UPLC–MS/MS","authors":"Yinghong Ma, Juan Lu, Xin Liu, Zheng Hu, Xiangsheng Zhao, Dandan Kong, Zhonghao Sun, Weiheng Kong, Tianyu Wang, Zhaocui Sun, Guoxu Ma, Xudong Xu, Meihua Yang, Ting Shen, Haifeng Wu, Qiongyu Zou, Haitao Liu","doi":"10.1016/j.indcrop.2026.122859","DOIUrl":"https://doi.org/10.1016/j.indcrop.2026.122859","url":null,"abstract":"Zearalenone (ZEN), a Fusarium-derived estrogenic mycotoxin, frequently contaminates Coix seeds and other grains, posing a food-safety and quality-control challenge because of the complex matrix and trace-level residue limits. Here, we developed a simulation-guided magnetic molecularly imprinted polymer (MMIP) for the rapid and selective enrichment of ZEN prior to LC–MS/MS determination. A pharmacophore model, DFT calculations, and molecular dynamics simulations were combined to identify cyclohexyl-1,4-benzenedicarboxylic acid (CDHB) as a suitable dummy template and to optimize a dual-monomer formulation (Boc-AG/MAA, ZEN: Boc-AG: MAA = 1:1:3) to strengthen complementary interactions. The resulting MMIP exhibited fast uptake (equilibrium reached in approximately 5 min), high selectivity (imprinting factor = 12.76), and a maximum adsorption capacity of 28.40 mg/g, as determined by Langmuir fitting of the equilibrium isotherms. The adsorbent also showed good reusability (≥10 adsorption–desorption cycles) with single-step desorption &gt; 90 %. When coupled with matrix-matched LC–MS/MS, the method achieved a limit of quantification of 3.70 μg/kg and recoveries of 86.8–112.9 % for spiked Coix samples. This work demonstrates that integrating molecular simulation with magnetic imprinting enables an efficient, reusable cleanup strategy for trace ZEN monitoring in complex grain-based matrices.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"45 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lipidomic profiles reveal the membrane lipid phase transition pattern in chilling-shocked cotton seedlings 脂质组学分析揭示了冷激棉花幼苗膜脂质相变模式
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122789
Li Yu, Xuan Long, Yubing Chen, Yue Shi, Zixuan Zhuge, Ke Nie, Ting Zhao, Zhihong Zheng, Nijiang Ai, Shiwei Geng, Luyao Wang, Xueying Guan
Cotton (Gossypium spp), originating from tropical and subtropical regions, is an important natural fiber crop and is currently cultivated across a wide range of latitudes. With the intensification of global climate change, cotton seedlings frequently suffer extreme low-temperature events in spring, often accompanied by delayed cold damage phenotypes. When exposed to chilling stress, membrane lipid phase transition is the fundamental causes of plant chilling damage. Through time-series relative electrolyte leakage (REL), subcellular ultrastructure, and lipidomic analysis, we find that at 6-hour time point under 4°C treatment, the membrane permeability of cotton leaves already undergoes significant changes, with key cell membrane components sphingolipids and phospholipids exhibiting opposite alteration patterns. Lipidomic analysis of chilling-tolerant seedlings generated by GIGANTEA (GI) silencing revealed dynamic changes in lipid profiles, particularly in medium- to long-chain free fatty acids (FFAs) and triacylglycerols (TGs). Notably, Arachidonic Acid (FFA, 20:4) exhibited a distinctive accumulation in chilling-shocked GI-silenced plants, suggesting its potential functional role in enhancing chilling tolerance. Understanding membrane lipid phase transitions and related lipid dynamics facilitates the selection of chilling-tolerant cotton varieties, which is beneficial for improving chilling tolerance and yield stability during the cotton seedling stage.
棉花(Gossypium spp)原产于热带和亚热带地区,是一种重要的天然纤维作物,目前在许多纬度地区都有种植。随着全球气候变化的加剧,棉花幼苗在春季频繁遭受极端低温事件,往往伴随着延迟的冷害表型。在低温胁迫下,膜脂相变是植物低温损伤的根本原因。通过时间序列相对电解质泄漏(REL)、亚细胞超微结构和脂质组学分析,我们发现在4°C处理下的6小时时间点,棉花叶片的膜通透性已经发生了显著变化,关键细胞膜成分鞘脂和磷脂呈现相反的变化模式。对GIGANTEA (GI)沉默产生的耐冷幼苗进行脂质组学分析,发现其脂质谱发生了动态变化,尤其是中至长链游离脂肪酸(FFAs)和甘油三酯(TGs)。值得注意的是,花生四烯酸(FFA, 20:4)在冷激gi沉默植物中表现出明显的积累,表明其在增强抗寒性方面具有潜在的功能作用。了解膜脂相变及其相关的脂质动力学,有利于棉花耐冷品种的选择,有利于提高棉花苗期的耐冷性和产量稳定性。
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引用次数: 0
Production of antibacterial bacterial cellulose through co-fermentation using Lactiplantibacillus plantarum and Pediococcus pentosaceus enhanced rice soaking wastewater 利用植物乳杆菌和五色Pediococcus强化水稻浸泡废水共发酵生产抗菌细菌纤维素
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122843
Jianfen Zhang, Feng Peng, Hong Chen, Guangfa Xie
Bacterial cellulose (BC) exhibits a range of exceptional properties, including outstanding purity, superior tensile strength, rapid moisture recovery rate, and excellent biocompatibility, giving it broad application potential. The bioconversion of industrial wastewater into BC is crucial for promoting sustainable economic development. In this study, rice soaking wastewater (RSW) of Chinese rice wine (Huangjiu) was utilized for BC production, leveraging the co-fermentation of Novacetimonas hansenii S-08 and lactic acid bacteria (LAB) present in RSW. By using LAB-enhanced RSW from the initial Huangjiu production stage, we produced BC with both enhanced yield and inherent antibacterial properties. Soaking with Lactiplantibacillus plantarum RL-7 and Pediococcus pentosaceus RL-10 rapidly established a LAB dominated community, accelerated acid production, and shortened the soaking time. Co-cultivating N. hansenii S-08 with the indigenous strains L. plantarum RL-7 or P. pentosaceus RL-10 at a 1:4 ratio in RSW medium significantly enhanced BC yield. Under optimized conditions (30°C, 4–5 days, 4 % HFCS), this co-fermentation strategy produced dry BC yields of 13.02 ± 0.23 g/L and 14.11 ± 0.27 g/L, respectively, and established a stable microbial consortium dominated by these strains. Co-fermentation not only increased BC production but also modified its physical structure, resulting in finer fibrils and stronger antibacterial activity. BC produced from co-fermentation exhibited strong inhibitory effects against Staphylococcus aureus. These findings provide valuable insights for the resource utilization of wastewater in Huangjiu production enterprise and the development of broad-spectrum antibacterial materials.
细菌纤维素(BC)具有优异的纯度、优异的抗拉强度、快速的水分回复率和良好的生物相容性等特性,具有广泛的应用潜力。工业废水生物转化为BC对促进经济可持续发展至关重要。本研究利用黄酒泡米废水(RSW),利用泡米废水中存在的汉斯诺瓦西单胞菌S-08和乳酸菌(LAB)共同发酵生产BC。通过实验室增强的RSW,我们从黄酒的初始生产阶段生产出了既提高了产率又具有固有抗菌性能的BC。植物乳杆菌RL-7和pentosaceus Pediococcus RL-10浸泡后迅速建立了LAB优势群落,加速了产酸,缩短了浸泡时间。在RSW培养基中,以1:4的比例与本地菌株L. plantarum RL-7或P. pentosaceus RL-10共培养hansenii S-08,显著提高了BC产量。在优化条件(30℃,4 - 5 d, 4 % HFCS)下,该共发酵策略的干BC产量分别为13.02 ± 0.23 g/L和14.11 ± 0.27 g/L,并建立了以这些菌株为主的稳定菌群。共发酵不仅增加了BC的产量,而且改变了其物理结构,使原纤维更细,抗菌活性更强。由共发酵产生的BC对金黄色葡萄球菌有较强的抑制作用。这些发现为黄酒生产企业废水资源化利用和广谱抗菌材料的开发提供了有价值的见解。
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引用次数: 0
Formaldehyde-free binder of natural rubber latex and lignin for sugarcane bagasse fiber composite plates 蔗渣纤维复合板用天然胶乳和木质素的无甲醛粘结剂
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122807
Juliana M. Silva, Everton A. Rodrigues, Pedro I.C. Claro, Vitor Lima, Marcos V. Lorevice, Rubia F. Gouveia
The rising demand for sustainable alternatives to conventional formaldehyde-containing binders has accelerated the development of renewable adhesives for environmentally friendly wood-inspired composites (WIC). Addressing a gap in the study of elastomeric matrices, this work introduces a novel WIC utilizing sugarcane bagasse fibers (SBF) bonded by an innovative bio-based adhesive (ADV) composed of natural rubber latex (NR) and alkali lignin. The WIC materials were fabricated via a straightforward hot-pressing process. Critically, the ADV binder was the key innovation, yielding composites with up to 60 % higher performance compared to formulations using only NR. Furthermore, varying the SBF content enabled significant modulation of the material properties, achieving a Young’s modulus of 5–35 MPa, yield strength of 0.25–1.25 MPa, and hardness of 30–90 IRHD. Abrasion resistance was also enhanced by nearly 40 %. Scanning electron microscopy revealed that lignin in the ADV improved the wettability and mechanical anchoring of the SBF within the matrix. Complementary X-ray microtomography further demonstrated a reduction in porosity in the ADV-WIC, while dynamic mechanical analysis suggested improved interfacial compatibility due to lignin incorporation in ADV. These results demonstrate a tunable, high-performance, and formaldehyde-free WIC material with strong potential for structural and coating applications as a green alternative to conventional wood-based products.
对传统含甲醛粘合剂的可持续替代品的需求不断增长,加速了用于环保木材复合材料(WIC)的可再生粘合剂的开发。为了解决弹性体基质研究中的一个空白,本文介绍了一种新的WIC,该WIC利用甘蔗甘蔗渣纤维(SBF)与天然胶乳(NR)和碱木质素组成的创新生物基粘合剂(ADV)粘合。WIC材料是通过简单的热压工艺制备的。关键的是,ADV粘结剂是关键的创新,与只使用NR的配方相比,ADV粘结剂产生的复合材料性能提高了60% %。此外,改变SBF含量可以显著调节材料性能,杨氏模量为5-35 MPa,屈服强度为0.25-1.25 MPa,硬度为30-90 IRHD。耐磨性提高了近40% %。扫描电镜显示,ADV中的木质素改善了SBF在基体中的润湿性和机械锚定性。补充x射线微断层扫描进一步证明了adva -WIC的孔隙率降低,而动态力学分析表明,由于木质素掺入adva中,界面相容性得到改善。这些结果表明,可调、高性能、无甲醛的WIC材料具有强大的潜力,可以作为传统木基产品的绿色替代品应用于结构和涂层。
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引用次数: 0
Identification of key O-methyltransferases involved in phytoalexin scoparone biosynthesis in Euphorbia lathyris 大戟植物抗毒素天冬酮生物合成关键o -甲基转移酶的鉴定
IF 5.9 1区 农林科学 Q1 AGRICULTURAL ENGINEERING Pub Date : 2026-02-09 DOI: 10.1016/j.indcrop.2026.122852
Long Huang, Hui Deng, Pirui Li, Mei Tian, Shu Xu, Ake Liu, Guyin Lin, Guodong Zhang, Xu Feng, Yu Chen, Wanli Zhao
Euphorbia lathyris, a medicinal and bioenergy plant, suffers significant post-harvest losses due to fruit decay, which reduces biomass yield. Scoparone, a coumarin-type phytoalexin, is widely recognized as an indicator of increased resistance to post-harvest decay in plants. Scoparone acts as both a phytoalexin and a therapeutic compound for liver disorders. However, the O-methyltransferase from the E. lathyris (ElCOMT) gene family, key enzymes responsible for catalyzing the final methylation step in scoparone formation, remain poorly characterized. In this study, 34 ElCOMT genes were identified and classified into two groups: Type I and Type II. Chromosomal localization analysis revealed a non-uniform distribution of ElCOMTs across the E. lathyris genome. Tissue-specific expression profiling and metabolomic analysis in E. lathyris indicated that ElCOMT33 and ElCOMT34 are potentially involved in scoparone biosynthesis. In vitro enzyme activity assays demonstrated that ElCOMT33 functions as a multifunctional enzyme capable of catalyzing two successive O-methylation reactions, converting esculetin to scoparone via scopoletin as an intermediate. ElCOMT34 exhibits a more limited substrate specificity, mediating only the O-methylation of esculetin to yield isoscopoletin. Furthermore, ElCOMT33 demonstrated broad catalytic activity, effectively methylating coumarins, phenylpropanes, and flavonoids. Transgenic assays confirmed that overexpression of ElCOMT33 and ElCOMT34 increased scopoletin and isoscopoletin biosynthesis in E. lathyris hairy roots (in vivo), respectively. This study systematically characterized the OMT gene family in E. lathyris and revealed multiple O-methylation steps involved in the biosynthesis of the phytoalexin scoparone. The findings provided a solid theoretical framework for further research on increasing endogenous phytoalexin biosynthesis for breeding disease-resistant plants and reducing post-harvest loss.
大戟(Euphorbia lathyris)是一种药用和生物能源植物,由于果实腐烂而遭受重大的收获后损失,从而降低了生物量产量。Scoparone是一种香豆素类型的植物抗菌素,被广泛认为是植物抗采收后腐烂能力增强的指标。Scoparone既是一种植物抗毒素,也是一种治疗肝脏疾病的化合物。然而,来自E. lathyris (ElCOMT)基因家族的o -甲基转移酶(负责催化天冬scoparone形成的最后甲基化步骤的关键酶)的特征仍然很差。本研究共鉴定出34个ElCOMT基因,并将其分为I型和II型两组。染色体定位分析显示,ElCOMTs在石鸡基因组中的分布不均匀。组织特异性表达谱和代谢组学分析表明,ElCOMT33和ElCOMT34可能参与天冬酮的生物合成。体外酶活性分析表明,ElCOMT33是一种多功能酶,能够催化两个连续的o -甲基化反应,通过东莨菪素作为中间体将esculletin转化为scoparone。ElCOMT34表现出更有限的底物特异性,仅介导esculletin的o -甲基化以产生异东莨菪素。此外,ElCOMT33表现出广泛的催化活性,可以有效地甲基化香豆素、苯丙烷和类黄酮。转基因实验证实,ElCOMT33和ElCOMT34的过表达分别增加了石菖蒲毛状根(体内)东莨菪素和异东莨菪素的生物合成。本研究系统地鉴定了鸢鸢花OMT基因家族,揭示了植物抗毒素天冬酮生物合成过程中涉及的多个o -甲基化步骤。研究结果为进一步研究增加内源植物抗菌素的生物合成以培育抗病植物和减少收获后损失提供了坚实的理论框架。
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Industrial Crops and Products
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