Native plants

本地植物
  • 文章类型: Journal Article
    蜂胶是一种主要由植物树脂组成的蜂产品,被蜜蜂用来保持蜂群的结构完整性。已知蜂胶通过其抗微生物活性有助于蜜蜂健康,并且由于其营养和药用特性而成为人类使用的有价值的产品。蜂胶通常根据树脂来源分为七类。新西兰蜂胶通常被认为是杨树型蜂胶,但是很少有研究对新西兰蜂胶进行化学表征以证实或拒绝这一假设。这里,第一次,我们根据其挥发性有机化合物来表征源自新西兰不同地区的蜂胶,使用气相色谱与质谱联用(GC-MS)。为了支持这种表征,我们还收集和分析了来自各种生产树脂的植物(原产于新西兰和引进)的树脂样品。我们的研究结果表明,蜜蜂主要使用杨树作为树脂来源,而且还利用本地植物物种生产蜂胶。虽然区域差异不允许样本之间的清晰分离,出现了一些模式,来自一些地区的样品具有更高的化学复杂性和来自天然物种的更高贡献(正如天然物种树脂特有的更高数量的化合物所暗示的)。需要进一步的研究来准确识别这些样品的植物来源。探索区域蜂胶样品的生物活性及其潜在的营养或药用益处也可能是有意义的。
    Propolis is a bee product mainly consisting of plant resins and is used by bees to maintain the structural integrity of the colony. Propolis is known to contribute to bee health via its antimicrobial activity and is a valued product for human use owing to its nutritional and medicinal properties. Propolis is often characterised into seven categories depending on the resin source. New Zealand propolis is typically assumed as being poplar-type propolis, but few studies have chemically characterised New Zealand propolis to confirm or reject this assumption. Here, for the first time, we characterise propolis originating from different regions in New Zealand based on its volatile organic compounds, using gas chromatography coupled with mass spectrometry (GC-MS). To support this characterisation, we also collected and analysed resin samples from a variety of resin-producing plants (both native to New Zealand and introduced). Our findings suggest that bees mainly use poplar as a resin source, but also utilize native plant species to produce propolis. While regional variation did not allow for clear separation between samples, some patterns emerged, with samples from some regions having more chemical complexity and a higher contribution from native species (as suggested by a higher number of compounds unique to native species resin). Further studies are needed to accurately identify the botanical sources contributing to these samples. It may be also of interest to explore the biological activity of regional propolis samples and their potential nutritional or medicinal benefits.
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  • 文章类型: Journal Article
    通过露天开采开采煤炭会导致覆盖层(OB)材料堆积,这对生产安全和环境稳定构成了重大风险。进行系统的文献计量分析,以确定研究趋势和差距,并评估了与煤OB植物稳定化相关领域的研究和作者的影响。与煤炭开采相关的关键问题包括土地退化,地表水和地下水污染,边坡失稳,侵蚀和生物多样性的丧失。处理煤炭OB材料加剧了此类问题,发起额外的环境和物理挑战。传统的方法,例如用于恢复OB的表土,无法恢复对可持续植被覆盖至关重要的基本土壤特性。植物稳定方法涉及在OB转储表面上建立自我维持的植物覆盖物,这是OB恢复的可行策略。通过补充有机改良剂来增强这种方法,可以通过改善有利于植物生长和污染物吸收的根际特性来促进OB垃圾场的恢复。严格评估了植物稳定化中植物选择所必需的标准。适应当地气候和生态条件的本地植物物种被确定为稳定污染物的关键因子。减少土壤侵蚀,增强生态系统功能。使用本地植物对煤矿成功进行植物稳定化的适用案例研究,为煤矿复垦工程的品种选择提供了切实可行的建议。这篇评论有助于采取可持续的方法来减轻煤炭开采对环境的影响,并促进退化景观的生态恢复。
    Extraction of coal through opencast mining leads to the buildup of heaps of overburden (OB) material, which poses a significant risk to production safety and environmental stability. A systematic bibliometric analysis to identify research trends and gaps, and evaluate the impact of studies and authors in the field related to coal OB phytostabilization was conducted. Key issues associated with coal extraction include land degradation, surface and groundwater contamination, slope instability, erosion and biodiversity loss. Handling coal OB material intensifies such issues, initiating additional environmental and physical challenges. The conventional approach such as topsoiling for OB restoration fails to restore essential soil properties crucial for sustainable vegetation cover. Phytostabilization approach involves establishing a self-sustaining plant cover over OB dump surfaces emerges as a viable strategy for OB restoration. This method enhanced by the supplement of organic amendments boosts the restoration of OB dumps by improving rhizosphere properties conducive to plant growth and contaminant uptake. Criteria essential for plant selection in phytostabilization are critically evaluated. Native plant species adapted to local climatic and ecological conditions are identified as key agents in stabilizing contaminants, reducing soil erosion, and enhancing ecosystem functions. Applicable case studies of successful phytostabilization of coal mines using native plants, offering practical recommendations for species selection in coal mine reclamation projects are provided. This review contributes to sustainable approaches for mitigating the environmental consequences of coal mining and facilitates the ecological recovery of degraded landscapes.
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  • 文章类型: Journal Article
    UgniCandollei,通常被称为白穆尔塔,是一种智利本地浆果,具有未充分开发的多酚成分。本研究旨在使用超高效液相色谱电喷雾电离Orbitrap质谱(UPLC-ESI-ORBITRAPMS)建立白色Murta多酚的综合图谱。此外,它比较了传统提取方法与新兴技术的功效,例如深度共晶溶剂(DES)提取和热水加压水提取(HPWE)。该分析初步确定了107种酚类化合物(其中84种是该品种首次报告的),包括25种酚酸,37花青素,和45种类黄酮.在突出的和以前未报道的多酚中,鞣花酸乙酰木糖苷,3-对-香豆酰基奎尼酸,花青素3-O-(6'-咖啡酰基葡萄糖苷,和根皮素2'-O-木糖基-葡萄糖苷。研究发现HPWE是传统的羟基苯甲酸提取的有希望的替代品,而DES提取在所有类别中效果较差。研究结果表明,白穆尔塔拥有多种酚类化合物,可能与各种生物活动有关。
    Ugni candollei, commonly known as white murta, is a native Chilean berry with a polyphenol composition that has been underexplored. This study aimed to establish a comprehensive profile of white murta polyphenols using ultra-performance liquid chromatography electrospray ionization Orbitrap mass spectrometry (UPLC-ESI-ORBITRAP MS). Additionally, it compared the efficacy of conventional extraction methods with emerging techniques such as deep eutectic solvent (DES) extraction and hot pressurized water extraction (HPWE). The analysis tentatively identified 107 phenolic compounds (84 of them reported for the first time for this cultivar), including 25 phenolic acids, 37 anthocyanins, and 45 flavonoids. Among the prominent and previously unreported polyphenols are ellagic acid acetyl-xyloside, 3-p-coumaroylquinic acid, cyanidin 3-O-(6\'-caffeoyl-glucoside, and phloretin 2\'-O-xylosyl-glucoside. The study found HPWE to be a promising alternative to traditional extraction of hydroxybenzoic acids, while DES extraction was less effective across all categories. The findings reveal that white murta possesses diverse phenolic compounds, potentially linked to various biological activities.
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  • 文章类型: Journal Article
    气候引起的干旱影响植物的生长发育。经常性的干旱增加了对粮食生产和景观美化用水的需求。美国西部山区的本地植物对低用水景观非常感兴趣,因为它们适应了干燥和寒冷的环境。这些本地植物在其本地位置表现非常好,但难以在景观中传播。可能的原因之一是园林绿化中缺乏相关的微生物组。土壤中的微生物组有助于土壤健康并影响植物的生长和发育。这里,我们使用本地植物Ceanothusvelutinus(雪刷ceanothus)的散装土壤作为接种剂,以增强其繁殖。雪刷ceanothus是一种用于低水位景观的观赏植物,很难无性繁殖。与未处理的插条相比,在盆栽混合物中使用50%的天然散装土壤作为接种剂可显着提高插条的存活率。从存活的雪刷的根际和根部分离出24种产生吲哚乙酸(IAA)的促进植物生长的根际细菌(PGPR)。17个分离株的IAA含量超过10µg/mL,并进行了7种不同的植物生长促进(PGP)性状的测试;76%的人在Norris葡萄糖无氮培养基上表现出固氮能力,70%显示磷酸盐溶解活性,76%显示铁载体生产,36%显示蛋白酶活性,94%在DF-ACC培养基上显示ACC脱氨酶活性,76%产生过氧化氢酶,所有分离物产生氨。十七个分离物中的八个,CK-6,CK-22,CK-41,CK-44,CK-47,CK-50,CK-53和CK-55显示拟南芥的芽生物量增加。8个分离物中有7个被鉴定为假单胞菌,除CK-55外,根据16SrRNA基因测序鉴定为鞘氨醇。入围的分离株正在不同的谷物和蔬菜作物上进行测试,以减轻干旱胁迫并促进植物生长。
    Climate-induced drought impacts plant growth and development. Recurring droughts increase the demand for water for food production and landscaping. Native plants in the Intermountain West region of the US are of keen interest in low water use landscaping as they are acclimatized to dry and cold environments. These native plants do very well at their native locations but are difficult to propagate in landscape. One of the possible reasons is the lack of associated microbiome in the landscaping. Microbiome in the soil contributes to soil health and impacts plant growth and development. Here, we used the bulk soil from the native plant Ceanothus velutinus (snowbrush ceanothus) as inoculant to enhance its propagation. Snowbrush ceanothus is an ornamental plant for low-water landscaping that is hard to propagate asexually. Using 50% native bulk soil as inoculant in the potting mix significantly improved the survival rate of the cuttings compared to no-treated cuttings. Twenty-four plant growth-promoting rhizobacteria (PGPR) producing indole acetic acid (IAA) were isolated from the rhizosphere and roots of the survived snowbrush. Seventeen isolates had more than 10µg/mL of IAA were shortlisted and tested for seven different plant growth-promoting (PGP) traits; 76% showed nitrogen-fixing ability on Norris Glucose Nitrogen free media,70% showed phosphate solubilization activity, 76% showed siderophore production, 36% showed protease activity, 94% showed ACC deaminase activity on DF-ACC media, 76% produced catalase and all of isolates produced ammonia. Eight of seventeen isolates, CK-6, CK-22, CK-41, CK-44, CK-47, CK-50, CK-53, and CK-55, showed an increase in shoot biomass in Arabidopsis thaliana. Seven out of eight isolates were identified as Pseudomonas, except CK-55, identified as Sphingobium based on 16S rRNA gene sequencing. The shortlisted isolates are being tested on different grain and vegetable crops to mitigate drought stress and promote plant growth.
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  • 文章类型: Journal Article
    在干旱地区选择高营养的饲料植物可能是提高畜牧业生产力的关键。这项工作探索了叶子的营养价值变化,茎,以及富查伊拉酋长的五种潜在饲料植物的芽,西班牙Erucaria,单叶结核,处女盘旋,龙骨,还有CleomeIbrachycarpa.受两种天气条件的影响,冬天和春天。植物样品经历了矿物成分,接近,植物化学,重金属和双向方差分析。从国家气象中心(NCM)访问了天气数据。我们的发现揭示了收集时间和物种对营养成分的显着影响。3月份收集的枝条显示出较高的灰分(6.167%),粗蛋白(11.9%),粗纤维(14.89%),干物质(45.86%),和总消化营养素(TDS)(48.35%),与1月相比,单宁降低(5.11%)。相反,1月收集的芽的总糖含量更高(1.28g/100g)。植物器官起到了至关重要的作用,叶子超过Mg的茎,P,Ca,K,Na,Mn,Zn,和Ni。叶片也显示出较高的粗蛋白(23.33%),干物质(92.26%),总灰分(4.8%),与茎相比,TDS(87.58%),茎表现出粗纤维(17.45%)和单宁(4.53%)升高。需要评估在这些饲料物种中发现的生物活性化合物,以增强其有效利用并最大程度地浏览这些物种。
    Selecting highly nutritive fodder plants in arid regions can be a key to improving the livestock productivity. This work explores the variation in nutritive value of the leaves, stem, and shoots of five potential fodder plants of the Emirates of Fujairah, Erucaria hispanica, Haplophyllum tuberculatum, Convolvulus virgatus, Teucrium stocksianum, and Cleome Ibrachycarpa. influenced by two weather conditions, winter and spring. The plant samples underwent mineral composition, proximate, phytochemical, and heavy metals and two-way ANOVA. Weather data were accessed from National Center of Meteorology (NCM). Our findings reveal significant influences of collection time and species on nutritive content. Shoots collected in March exhibited higher ash (6.167%), crude protein (11.9%), crude fiber (14.89%), dry matter (45.86%), and total digestive nutrients (TDS) (48.35%), with lower tannin (5.11%) compared to January. Conversely, January-collected shoots had greater total sugar content (1.28 g/100 g). Plant organs played a crucial role, with leaves surpassing stems in Mg, P, Ca, K, Na, Mn, Zn, and Ni. Leaves also showed higher crude protein (23.33%), dry matter (92.26%), total ash (4.8%), and TDS (87.58%) compared to stems, while stems exhibited elevated crude fiber (17.45%) and tannin (4.53%). There is a need to assess the bioactive compounds found in these fodder species for the enhancement its effective use and maximize browsing of these species.
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  • 文章类型: Journal Article
    水中的金属污染,土壤,植被是一个新兴的环境问题。因此,这项研究调查了本地植物物种根和芽中重金属(HM)的丰度,即果皮Bromus,Cynodondactylon,PoaAnnua,大猩猩,Anagallisarvensis,和Stellaria培养基生长在巴基斯坦城市阿伯塔巴德的市政废水通道的毗邻区域。城市污水中HMs浓度(mgL-1)为:铬(Cr)(0.55)>镍(Ni)(0.09)>铅(Pb)(0.07)>镉(Cd)(0.03)。植物根和芽中HMs的积累变化为:果皮芽孢杆菌>仙人掌>黄花芽孢杆菌>天线草>A.arvensis>S.media。无论植物种类如何,根的HMs浓度高于芽。在果皮根中检测到较高的Cr含量(131.70mgkg-1),在A.arvensis中检测到最低的Cr含量(81mgkg-1),在果皮芽孢杆菌的枝条中发现Cd浓度最高,而在Heliscopa中最低。在S.medium的根(37.40mgkg-1)和C.dactylon的芽(15.70mgkg-1)中发现了最高的Ni浓度,而在A.arvensis的根中达到了最低的Ni浓度(12.10mgkg-1)和E.heliscopa的芽(5.90mgkg-1)。单个植物物种中HM的浓度小于1000mgkg-1。考虑到生物浓度因子(BCF)的较高值(>1),生物累积系数(BAC),和易位因子(TF),果皮芽孢杆菌和S.培养基物种比其他物种显示出更大的HMs积累潜力。因此,这些植物可能有助于修复受HM污染的土壤。
    Metal pollution in water, soil, and vegetation is an emerging environmental issue. Therefore, this study investigated the abundance of heavy metals (HMs) within roots and shoots of native plant species i.e., Bromus pectinatus, Cynodon dactylon, Poa annua, Euphorbia heliscopa, Anagallis arvensis, and Stellaria media grown in the adjoining area of municipal wastewater channels of a Pakistani city of Abbottabad. HMs concentrations (mg L-1) in municipal wastewater were: chromium (Cr) (0.55) > nickel (Ni) (0.09) > lead (Pb) (0.07) > cadmium (Cd) (0.03). Accumulation of HMs in both roots and shoots of plant species varied as B. pectinatus > C. dactylon > P. annua > E. heliscopa > A. arvensis > S. media. Irrespective of the plant species, roots exhibited higher concentrations of HMs than shoots. Higher amount of Cr (131.70 mg kg-1) was detected in the roots of B. pectinatus and the lowest amount (81 mg kg-1) in A. arvensis, Highest Cd concentration was found in the shoot of B. pectinatus and the lowest in the E. heliscopa. The highest concentration of Ni was found in the roots of S. media (37.40 mg kg-1) and the shoot of C. dactylon (15.70 mg kg-1) whereas the lowest Ni concentration was achieved in the roots of A. arvensis (12.10 mg kg-1) and the shoot of E. heliscopa (5.90 mg kg-1). The concentration of HMs in individual plant species was less than 1000 mg kg-1. Considering the higher values (> 1) of biological concentration factor (BCF), biological accumulation co-efficient (BAC), and translocation factor (TF), B. pectinatus and S. media species showed greater potential for HMs accumulation than other species. Therefore, these plants might be helpful for the remediation of HM-contaminated soil.
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  • 文章类型: Journal Article
    精油是芳香植物的天然产物,具有多种用途。精油已在全球范围内进行交易,并在各个行业中使用。印尼是世界第六大精油生产国,但是土地退化是继续开采和利用天然产物的风险。在退化的土地上生产精油植物是减轻这种风险的潜在策略。这项研究旨在确定印度尼西亚的退化土地,这些土地可能是五种野生本地精油生产植物的合适栖息地,即短枝硬草(L.)Miq。,BaeckeafrutescensL.,CynometracaulifloraL.,蒙大拿州木兰(Blume)Figlar,和木兰summatranavar。glauca(Blume)Figlar&Noot使用各种物种分布模型。
    通过比较10个物种分布模型来预测这些物种的栖息地适宜性,包括Bioclim,分类和回归树(CART),灵活判别分析(FDA),Maxlike,增强回归树(BRT),多元自适应回归样条(MARS),广义线性模型(GLM),游侠,支持向量机(SVM),和随机森林(RF)。生物气候,地形和土壤变量被用作模型栖息地适宜性的预测因子。根据其AUC和TSS度量评估模型。模型选择基于排名表现。通过将模型与退化的土地位置重叠,得出了印度尼西亚退化土地上五种本地精油生产植物的总合适面积。
    很好地预测了这些物种的栖息地适宜性模型,AUC值>0.8,TSS值>0.7。影响这些物种栖息地适宜性的最重要的预测变量是最潮湿季度的平均温度,降水季节性,最温暖的季度降水,降水最冷的季度,阳离子交换能力,氮,沙子,和土壤有机碳。C.花椰菜具有最大的预测适宜面积,紧随其后的是蒙大拿先生,B.frutescens,M.sumatranavar.glauca,和花梗。预测栖息地适宜性与退化土地之间的重叠区域表明,印度尼西亚森林地区的大多数退化土地都适合这些物种。
    被预测为五种本地精油生产植物的合适栖息地的退化土地在整个印度尼西亚广泛传播,主要在其主要岛屿。印度尼西亚政府可以使用这些发现来评估退化的土地利用和恢复政策,以提高土地生产力。
    UNASSIGNED: Essential oils are natural products of aromatic plants with numerous uses. Essential oils have been traded worldwide and utilized in various industries. Indonesia is the sixth largest essential oil producing country, but land degradation is a risk to the continuing extraction and utilization of natural products. Production of essential oil plants on degraded lands is a potential strategy to mitigate this risk. This study aimed to identify degraded lands in Indonesia that could be suitable habitats for five wild native essential oil producing plants, namely Acronychia pedunculata (L.) Miq., Baeckea frutescens L., Cynometra cauliflora L., Magnolia montana (Blume) Figlar, and Magnolia sumatrana var. glauca (Blume) Figlar & Noot using various species distribution models.
    UNASSIGNED: The habitat suitability of these species was predicted by comparing ten species distribution models, including Bioclim, classification and regression trees (CART), flexible discriminant analysis (FDA), Maxlike, boosted regression trees (BRT), multivariate adaptive regression splines (MARS), generalized linear models (GLM), Ranger, support vector machine (SVM), and Random Forests (RF). Bioclimatic, topographic and soil variables were used as the predictors of the model habitat suitability. The models were evaluated according to their AUC and TSS metrics. Model selection was based on ranking performance. The total suitable area for five native essential oil producing plants in Indonesia\'s degraded lands was derived by overlaying the models with degraded land locations.
    UNASSIGNED: The habitat suitability model for these species was well predicted with an AUC value >0.8 and a TSS value >0.7. The most important predictor variables affecting the habitat suitability of these species are mean temperature of wettest quarter, precipitation seasonality, precipitation of warmest quarter, precipitation of coldest quarter, cation exchange capacity, nitrogen, sand, and soil organic carbon. C. cauliflora has the largest predicted suitable area, followed by M. montana, B. frutescens, M. sumatrana var. glauca, and A. pedunculata. The overlapping area between predictive habitat suitability and degraded lands indicates that the majority of degraded lands in Indonesia\'s forest areas are suitable for those species.
    UNASSIGNED: The degraded lands predicted as suitable habitats for five native essential oil producing plants were widely spread throughout Indonesia, mostly in its main islands. These findings can be used by the Indonesian Government for evaluating policies for degraded land utilization and restorations that can enhance the lands\' productivity.
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  • 文章类型: Journal Article
    与本地寄宿植物相比,寄生虫在非本地寄宿植物上发现鳞翅目寄主的可能性较小吗?我们预测,草食动物与它们所消耗的植物之间的协同进化时间更长,提供自上而下控制的寄生虫将更适合在本地植物上找到它们的宿主。为了检验这个假设,我们在三年期间(2008-2011年)从塞纳属的本地和观赏寄居植物中收集了未成熟阶段的硫蝴蝶(无云的硫(Phoebissennae)和橙色的硫(Phoebisagariis)迈阿密城市景观的三个不同部分,佛罗里达,美国。我们将未成熟的标本饲养到化脓,成虫的羽化或寄生虫的出现,并比较了三个区域之间的寄生水平,在本地人与异国情调的寄养植物。我们发现,与我们的预测相反,以非本地豆科寄居植物物种为食的毛毛虫比以本地寄居植物为食的毛毛虫更容易被寄生。我们根据其他植物/草食动物/寄生虫系统的最新发现来讨论这一令人惊讶的发现。
    Are parasitoids less likely to find their Lepidoptera hosts on non-native hostplants than native hostplants? We predicted that with longer periods of coevolution between herbivores and the plants they consume, the parasitoids that provide top-down control would be more attuned to finding their hosts on native plants. To test this hypothesis, we collected immature stages of sulfur butterflies (the cloudless sulfur (Phoebis sennae) and the orange-barred sulfur (Phoebis agarithe) over a three-year period (2008-2011) from native and ornamental hostplants in the genus Senna in three different parts of the urban landscape of Miami, Florida, USA. We reared the immature specimens to pupation and either eclosion of adults or emergence of parasitoids and compared the levels of parasitization among the three areas, and among native vs. exotic hostplants. We found, contrary to our prediction, that caterpillars feeding on non-native leguminous hostplant species were more likely to be parasitized than those feeding on native hostplants. We discuss this surprising finding in the light of recent findings in other plant/herbivore/parasitoid systems.
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  • 文章类型: Journal Article
    曼陀罗是来自墨西哥的茄科植物的入侵草本植物,在中国入侵严重。入侵植物对乡土植物功能性状和土壤碳化学计量特征的影响,以入侵植物D.stramonium和共存的乡土植物为研究对象,探索了不同生境中的氮磷。物种,农田样地植物的数量和高度,调查了荒地和路边的栖息地,并确定了特定的叶面积(SLA),叶碳含量(C),氮含量(N),碳氮比(C:N),建筑成本(CCmass)和土壤碳(C)的化学计量特征,分析了氮(N)和磷(P)。结果表明,与非入侵地区相比,入侵地区原生植物的种类和数量减少,SLA和叶片N均呈下降趋势。农田和荒地侵入区乡土植物株高分别下降23.19%和15.26%,分别,而路边乡土植物的高度增加了95.91%。沿路边入侵地区的本地植物的叶片C:N比显着增加了54.07%。三个生境中的D.stramonium的株高和叶片N均高于本地植物。三个生境侵入区的土壤N增加,随着农田土壤氮增加21.05%,荒地增加9.82%,路边显着增加46.85%。3个生境土壤碳磷比(C:P)均呈增加趋势。农田土壤C:P比增加了62.45%,在荒地,上升了11.91%,在路边,上升了71.14%。这些结果表明,斯特拉米的入侵对当地生态系统有很大影响,它具有很高的捕获资源的能力。D.stramonium可以通过改变本地植物的功能特性和土壤C的化学计量特征来增强侵袭性,从而提高自身的竞争力,N和P,这可能是其侵入性成功的原因。
    Datura stramonium is an invasive herb of the family Solanaceae from Mexico and has been invading seriously in China. The effects of invasive plants on the functional traits of native plants and the stoichiometric characteristics of soil carbon, nitrogen and phosphorus in different habitats were explored by taking the invasive plant D. stramonium and coexisting native plants as the research object. The species, quantity and height of plants in sample plots in farmland, wasteland and roadside habitats were investigated and the specific leaf area (SLA), leaf carbon content (C), nitrogen content (N), carbon-to-nitrogen ratio (C:N), construction cost (CCmass) and stoichiometric characteristics of soil carbon (C), nitrogen (N) and phosphorus (P) were analyzed. The results showed that compared with the noninvaded area, the species and quantity of native plants decreased in the invaded area, and SLA and leaf N showed a decreasing trend. The plant height of native plants in the invaded area of the farmland and wasteland decreased by 23.19% and 15.26%, respectively, while the height of native plants along the roadside increased by 95.91%. The leaf C:N ratio of native plants in the invaded area along the roadside significantly increased by 54.07%. The plant height and leaf N of D. stramonium in the three habitats were higher than those of the native plants. The soil N in the invaded area of the three habitats increased, with the soil N in the farmland increasing by 21.05%, in the wasteland increasing by 9.82% and along the roadside significantly increasing by 46.85%. The soil carbon-to-phosphorus ratio (C:P) in the three habitats showed an increasing trend. The soil C:P ratio in the farmland increased by 62.45%, in the wasteland it increased by 11.91% and along the roadside it significantly increased by 71.14%. These results showed that invasion by D. stramonium has a great effect on the local ecosystem, and it has a high ability to capture resources. D. stramonium can improve its own competitiveness by enhancing invasiveness by changing the functional traits of native plants and the stoichiometric characteristics of soil C, N and P, which may be the reason for its invasive success.
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  • 文章类型: Journal Article
    神经退行性疾病,如阿尔茨海默病(AD),帕金森病(PD),癫痫,由于人口老龄化,构成了日益严重的全球卫生挑战。这些条件共享共同的过程,包括蛋白质积累,氧化应激,和神经炎症,使他们的治疗复杂和昂贵。网络药理学,一种整合系统生物学和计算生物学的创新方法,提供了对多靶标制剂和现有药物对神经退行性疾病的再利用的见解。我们入围了来自25种传统喜马拉雅植物的730种生物活性化合物,使用ADME标准评估了它们的药物样特性,并通过反向对接和药效团作图预测其潜在的靶蛋白。我们的研究确定了287种具有高胃肠道吸收和良好血脑屏障通透性的化合物。对这些化合物进行目标预测,产生171个潜在靶蛋白的列表。功能注释和途径富集分析强调了它们参与类固醇激素相关途径,MAPK信号,FOXO信号,TNF信号,VEGF信号,和神经营养蛋白信号。重要的是,一株植物,Valerianajatamansi,表现出与β-淀粉样蛋白结合活性的关联,一种潜在的AD治疗方法。从我们的研究中,我们可以了解这些植物如何调节我们的身体来管理这些疾病。然而,在商业和公开使用该数据之前,还需要进一步的体外和体内验证。
    Neurodegenerative diseases, such as Alzheimer\'s disease (AD), Parkinson\'s disease (PD), and epilepsy, pose a growing global health challenge due to an aging population. These conditions share common processes, including protein accumulation, oxidative stress, and neuro-inflammation, making their treatment complex and costly. Network pharmacology, an innovative approach integrating systems biology and computational biology, offers insights into multi-target formulations and the repurposing of existing medications for neurodegenerative diseases. We shortlisted 730 bioactive compounds from 25 traditional Himalayan plants, assessed their drug-like properties using ADME criteria, and predicted their potential target proteins through reverse docking and pharmacophore mapping. Our study identified 287 compounds with high gastrointestinal absorption and good blood-brain barrier permeability. These compounds were subjected to target prediction, yielding a list of 171 potential target proteins. Functional annotation and pathway enrichment analysis highlighted their involvement in steroid hormone-related pathways, MAPK signaling, FOXO signaling, TNF signaling, VEGF signaling, and neurotrophin signaling. Importantly, one plant, Valeriana jatamansi, exhibited an association with beta-amyloid binding activity, a potential therapeutic approach for AD. From our study we could understand how these plants modulate our body to manage these diseases. However, further in vitro and in vivo validation is needed before commercial and public use of this data.
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