Applied Biological Chemistry最新文献

{"title":"Correction: Acute neuro-biochemical changes induced by nitrogen-tungsten co-doped titanium dioxide nanoparticles","authors":"Hafz Muhammad Umer Farooqi, Jooho Lee, Cheong-Ah Lee, Seung-Uk Im, Muhammad Awais Farooqi, Tasbiha Gul, Ghayas Uddin Siddiqui, Dong-Guk Paeng","doi":"10.1186/s13765-024-00862-1","DOIUrl":"10.1186/s13765-024-00862-1","url":null,"abstract":"","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00862-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139682805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-iron consumption decreases copper accumulation and colon length, and alters serum lipids","authors":"Jisu Lee,&nbsp;Hyun-Joo Lee,&nbsp;Hyunsoo Jang,&nbsp;Jae-Joon Lee,&nbsp;Jung-Heun Ha","doi":"10.1186/s13765-024-00861-2","DOIUrl":"10.1186/s13765-024-00861-2","url":null,"abstract":"<div><p>In this study, we aimed to demonstrate that a significant increase in dietary iron intake disrupts the regulation of copper availability, ultimately leading to systemic copper deficiency. To investigate this, we conducted experiments using five-week-old male weanling Sprague–Dawley rats fed diets based on AIN-93G with some modifications. These diets featured varying iron content, offering choices of adequate iron (~ 120 μg/g, near the upper limit [UL]) or high iron (~ 7544 μg/g), along with low (~ 0.3 μg/g), adequate (~ 6 μg/g), or high (~ 153 μg/g) levels of dietary copper over a 5-week period. Rats consuming the high-iron diets displayed anemia, reduced copper levels in their organs and feces, and shortened colon lengths. Increased dietary iron intake resulted in an overall reduction in copper distribution within the body, likely leading to severe copper deficiency-related disorders in the experimental rats. However, the physiological disturbances caused by a high-iron diet were prevented when additional copper was included in the rodent diet. Furthermore, high iron intake led to copper deprivation, and high iron consumption resulted in elevated serum cholesterol levels. However, increasing dietary copper consumption led to a decrease in overall serum cholesterol levels. Additionally, serum alkaline phosphate and aspartate aminotransferase levels were increased by high-iron feeding, regardless of dietary copper concentration, while alanine aminotransferase levels decreased.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00861-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential anti-acne loaded nanogel formulations of Origanum majorana L. and Chrysanthemum morifolium Ramat. essential oils","authors":"Eman A. Kotb,&nbsp;Riham A. El-Shiekh,&nbsp;Mariam Hassan,&nbsp;Wessam Hamdy Abd-Elsalam,&nbsp;Nebal El Tanbouly,&nbsp;Amira Safwat El Senousy","doi":"10.1186/s13765-024-00859-w","DOIUrl":"10.1186/s13765-024-00859-w","url":null,"abstract":"<div><p>Acne is a highly prevalent skin disease with a great psychological impact on patients as self-perception, self-confidence, and depression. This work aimed to develop an anti-acne preparation from active anti-bacterial medicinal plants to circumvent the severe side effects and drug resistance commonly reported with topical erythromycin anti-acne preparations. Essential oils: <i>Salvia officinalis</i> L. (sage), <i>Rosmarinus officinalis</i> L. (rosemary), <i>Commiphora myrrha</i> Nees Engl. (myrrh), <i>Origanum majorana</i> L. (marjoram), <i>Pelargonium zonale</i> L. L’Hér. ex Aiton (geranium) and <i>Chrysanthemum morifolium</i> Ramat. (chrysanthemum) were extracted by hydrodistillation and analyzed using gas chromatography/mass spectrometry (GC/MS). The anti-acne activities of the oils against <i>Cutibacterium</i> acnes ATCC 6919 were evaluated by microdilution methods to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). The most active essential oils were loaded in a film-forming nanogel prepared with chitosan, pluronic F127 and glycerol in the ratio of 3:1:1, prior to investigation in a murine acne in vivo model. Marjoram and chrysanthemum oils showed the highest antimicrobial activity against <i>C. acnes</i> (MIC = 0.156% <i>v/v</i> and 0.125% <i>v/v</i>, respectively). GC/MS of the actives showed that gamma-terpinene (26.46%) and terpinen-4-ol (22.24%) were the predominant constituents in marjoram, whereas chrysanthenone (32.79%) was the main component in chrysanthemum. The formulated essential oil-loaded film-forming nanogels of both oils exhibited significant anti-acne activity in mice via reducing the bacterial loads, activating the antioxidant nuclear factor erythroid 2–related factor 2 (Nrf2) pathway and inhibiting the inflammatory tumor necrosis factor-alpha (TNF-α) pathway. Further studies should be designed to evaluate the clinical evidence for the use of marjoram and chrysanthemum oil products in acne treatment.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00859-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139561856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulforaphane (Sul) reduces renal interstitial fibrosis (RIF) by controlling the inflammation and TGF-β/Smad signaling pathway","authors":"Ziqing Yu,&nbsp;Wen He,&nbsp;Weiwu Shi","doi":"10.1186/s13765-024-00858-x","DOIUrl":"10.1186/s13765-024-00858-x","url":null,"abstract":"<div><p>All chronic renal disorders eventually lead to renal interstitial fibrosis (RIF). Chronic inflammation and pro-fibrotic substances are familiar companions of the fibrotic process. The Sulforaphane (Sul) molecule is particularly useful in protecting the liver from oxidative damage. To investigate the Sul effects on fibrosis markers and inflammatory proteins in the kidney of NRK52E cell line and rats and clarify the mechanism of TGF-β/Smad signaling pathway in a rat model of RIF were developed in the present study. Sul (50, 100, and 200 ng/ml) remarkably reduced the gene expressions of tumor necrosis factor (TNF-α), interleukin-6 (IL-6), interleukin (IL)-1β, collagen 3 (COL3A1), collagen 1 (COL1A1), and α-smooth muscle actin (α-SMA) in fibrotic NRK52E cells compared with those in cells inspired by transforming growth factor-α (TGF-α). Histopathological investigations showed that Sul administration retained renal tissue structure and decreased kidney tissue fibrosis in rats subjected to unilateral ureteral blockage (UUO). The expression level of TNF-α, IL-6, IL-1β, COL3A1, COL1A1, and α-SMA in the rats’ kidneys exposed to UUO was also suppressed by the treatment of Sul. In the present study, western blot analysis showed that Sul upregulated the expressions of fibrotic NRK52E cells Smad7 and rat model UUO groups while simultaneously decreasing the stimulation of Smad2/3 and the expressions of cyclooxygenase-2, NF-κB, Smad4, activator protein-1, and high-mobility group protein B1. Ultimately, Sul’s ability to inhibit the TGF-β/Smad pathway and the development of inflammation factors may mitigate RIF.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00858-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139561823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cow milk derived-fat inhibits the proliferation of liver cancer-cells","authors":"Meran Keshawa Ediriweera,&nbsp;Do Manh Cuong,&nbsp;Somi Kim Cho","doi":"10.1186/s13765-024-00860-3","DOIUrl":"10.1186/s13765-024-00860-3","url":null,"abstract":"<div><p>Cow milk is a widely consumed liquid diet, and its fatty acid composition impacts its nutritional and biochemical properties. However, research on the anticancer efficacy of cow milk-derived fat in liver cancer cells is limited. This study investigated the antiproliferative and apoptotic effects of cow milk-derived fat in human hepatoma HepG2 cells. Additionally, the effects of cow milk-derived fat on cell cycle progression and Janus kinase (JAK)-2/signal transducer and activator of transcription (STAT)-3 signaling in HepG2 cells were assessed. Furthermore, the histone deacetylase inhibitory and 2,2-diphenyl-1-picrylhydrazyl radical scavenging potential of cow milk-derived fat were examined. The results demonstrate that cow milk-derived fat can exert antiproliferative and anticlonogenic effects and induce apoptosis in HepG2 cells dose-dependently. Furthermore, cow milk-derived fat induced cell cycle arrest, suppressed the levels of pJAK-2 and pSTAT-3, and inhibited the total histone deacetylase activity in HepG2 cells. The fatty acid profile of cow milk-derived fat revealed that palmitic, oleic, and linoleic acids were abundant as saturated, monounsaturated, and polyunsaturated fatty acids, respectively. Our findings provide a new scientific basis for the development of anticancer strategies that utilize cow milk-derived fat and its derivatives against liver cancer.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00860-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139561862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of morpholine ring-bearing halogenated α,β-unsaturated ketones as selective monoamine oxidase-B inhibitors","authors":"Jiseong Lee,&nbsp;Saranya Kattil Parmbil,&nbsp;Nagendar Kumar Pandit,&nbsp;Sunil Kumar,&nbsp;Asad Syed,&nbsp;Abdallah M. Elgorban,&nbsp;Ling Shing Wong,&nbsp; Ranjana,&nbsp;Hoon Kim,&nbsp;Bijo Mathew","doi":"10.1186/s13765-024-00857-y","DOIUrl":"10.1186/s13765-024-00857-y","url":null,"abstract":"<div><p>Nine morpholine-derived halogenated chalcone derivatives (<b>MHC1</b>-<b>MHC9</b>) were synthesized, and their inhibitory activity against monoamine oxidase (MAO) was evaluated. <b>MHC5</b> showed the highest inhibitory activity against MAO-B with an IC₅₀ value of 0.065 μM, followed by <b>MHC7</b> (IC₅₀ = 0.078 μM) and <b>MHC6</b> (IC₅₀ = 0.082 μM). The <i>para</i>-F substituent <b>MHC4</b> was also potent (IC₅₀ = 0.095 μM). The selectivity index values of all the compounds were high for MAO-B over MAO-A, and the values for <b>MHC5</b> and <b>MHC4</b> were 66.15 and 80.11, respectively. <b>MHC5</b> and <b>MHC4</b> were competitive MAO-B inhibitors with K_i values of 0.024 ± 0.00062 and 0.041 ± 0.0028 μM, respectively. In reversibility tests, the changes in residual activity before and after the dialysis of <b>MHC5</b> and <b>MHC4</b> were similar to those of safinamide, a reversible MAO-B reference inhibitor. Additionally, molecular docking and dynamic simulations predicted that the lead molecules <b>MHC5</b> and <b>MHC4</b> could strongly bind to the MAO-B active site with docking scores of –10.92 ± 0.08 and –10.64 ± 0.14 kcal/mol, respectively. Additionally, <b>MHC4</b> and <b>MHC5</b> exhibited favorable ADME features, including blood–brain barrier permeability. The experiments confirmed that <b>MHC5</b> and <b>MHC4</b> are reversible and potent selective inhibitors of MAO-B and are promising candidates for the treatment of neurodegenerative diseases (human health).</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-024-00857-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139523151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioactive compounds and antioxidant activity in three types of Korean watery kimchi","authors":"Hyosun Park,&nbsp;Suna Kim,&nbsp;Jaecheol Kim,&nbsp;KyeongJin Lee,&nbsp;BoKyung Moon","doi":"10.1186/s13765-023-00855-6","DOIUrl":"10.1186/s13765-023-00855-6","url":null,"abstract":"<div><p>Watery kimchi is a traditional fermented food served with its soup. In this study, we collected 21 samples of <i>yeolmu mul</i> kimchi (YMK), <i>dongchimi</i> (DC), and <i>nabak</i> kimchi (NK), respectively, which are the most popular watery kimchi in Korea. A composite sample of each watery kimchi was prepared for estimation of their bioactive compounds and antioxidant activities. Of the three kimchi types, YMK had the highest total carotenoid content (63.78 ± 4.88 mg/100 g, of which lutein, capsanthin, and β-carotene were the main carotenoids), and DC had the lowest (3.50 ± 0.12 mg/100 g). YMK also had the highest contents of chlorophyll (250.1 ± 3.91 mg/100 g), ascorbic acid (447.16 ± 8.95 mg/100 g), and capsaicinoids (2.51 ± 0.09 mg/100 g) compared to DC and NK. The lactic acid content was highest in NK (582.72 ± 29.10 mg/100 g). Moreover, YMK showed significantly higher antioxidant activity (ABTS and DPPH) than DC and NK (<i>p</i> &lt; 0.05). Chlorophyll and antioxidant activity showed a strong positive correlation (<i>p</i> &lt; 0.01). The results of this study highlighted watery kimchi as a potentially valuable source of bioactive compounds, and the carotenoids and capsaicinoids were affected by the supporting ingredients used in watery kimchi. Furthermore, watery kimchi provides 4.11% of the recommended daily intake of vitamin A according to the 2020 Korean dietary reference intakes.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-023-00855-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139494379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochemical characterization of a regiospecific flavonoid 3'-O-methyltransferase from orange","authors":"Hye Lin Park,&nbsp;Seong Hee Bhoo,&nbsp;Sang-Won Lee,&nbsp;Man-Ho Cho","doi":"10.1186/s13765-023-00853-8","DOIUrl":"10.1186/s13765-023-00853-8","url":null,"abstract":"<div><p>Citrus plants have diverse methoxyflavonoids including, chrysoeriol, isosakuranetin, and nobiletin. In plants, <i>O</i>-methyltransferases (OMTs) participate in the methylation of a vast array of secondary metabolites, including flavonoids, phenylpropanoids, and alkaloids. To identify functional OMTs involved in the formation of methoxyflavonoids, orange (<i>Citrus sinensis</i>) OMT (CsOMT) genes were retrieved from the Citrus Genome Database. The phylogenetic relationships with functional OMTs suggested that three CsOMTs, CsOMT15, CsOMT16, and CsOMT30, are possible candidates for flavonoid OMTs (FOMTs). These CsOMTs were heterologously expressed in <i>Escherichia coli</i>, and their OMT activity was examined with flavonoid substrates. Of the examined CsOMTs, CsOMT16 catalyzed the regiospecific 3'-<i>O</i>-methylation of flavonoids to the respective 3'-methoxyflavonoids. A kinetic study demonstrated that CsOMT16 accepts diverse flavonoids as a substrate with a comparable preference. The flavonoids eriodictyol, luteolin, and quercetin were efficiently converted to homoeriodictyol, chrysoeriol, and isorhamnetin by CsOMT16-transformed <i>E. coli</i> cells, respectively. These findings suggest that CsOMT16 contributes to the methoxyflavonoid formation in orange and is applicable to the biotechnological production of 3'-methoxyflavonoids.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-023-00853-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139419553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contrasting effects of food waste and its biochar on soil properties and lettuce growth in a microplastic-contaminated soil","authors":"Kumuduni Niroshika Palansooriya,&nbsp;Piumi Amasha Withana,&nbsp;Yoonah Jeong,&nbsp;Mee Kyung Sang,&nbsp;Yoora Cho,&nbsp;Geonwook Hwang,&nbsp;Scott X. Chang,&nbsp;Yong Sik Ok","doi":"10.1186/s13765-023-00851-w","DOIUrl":"10.1186/s13765-023-00851-w","url":null,"abstract":"<div><p>The incorporation of organic amendments, such as food waste (FW) and biochar, into soil is an established agronomic practice known for enhancing soil fertility and improving overall soil health. However, the individual and combined effects of FW and biochar on soil properties in microplastic (MP)-contaminated soil–plant systems remain poorly understood. To address this knowledge gap, we conducted a field experiment to investigate the individual and combined effects of polystyrene MPs, FW, and FW-derived biochar on soil properties and lettuce growth. Soil chemical properties were unaffected by the addition of MPs. However, the application of FW and biochar increased the soil pH, with the highest pH (8.2) observed in the combined treatment of biochar and MPs. Despite the presence of MPs, FW application resulted in notable increases in soil electrical conductivity (EC; 2.04 dS m⁻¹), available nitrogen (NO₃⁻–N: 325.5 mg kg⁻¹, NH₄⁺–N: 105.2 mg kg⁻¹), available phosphorus (88.4 mg kg⁻¹), and total exchangeable cations (18.6 cmol₍₊₎ kg⁻¹). However, these values decreased after lettuce cultivation. In soil cultivated with lettuce, the coexistence of MPs and biochar reduced soil Fluorescein diacetate hydrolase enzyme activity by 46.2% and urease activity by 94.0%. FW addition doubled acid phosphatase activity, whereas FW and its coexistence with MPs decreased alpha diversity. The relative abundance of Actinobacteria decreased with MP application, whereas that of Acidobacteria and Actinobacteria decreased with FW treatment. Gemmatimonadetes and Nitrospirae decreased in soil treated with FW and biochar. The highest relative abundances of Firmicutes and Proteobacteria were observed in the FW-added soils, and Planctomycetes were the highest in the biochar-added soils. FW application negatively affected lettuce growth. Overall, the coexistence of MPs with FW or biochar had limited effects on soil properties and lettuce growth, with FW and biochar serving as the primary factors in modifying soil–plant systems. Future studies should investigate the effects of different MPs and their interactions with organic soil amendments on soil properties and crop growth under different management practices.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-023-00851-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139419552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring of soil EC for the prediction of soil nutrient regime under different soil water and organic matter contents","authors":"Han Na Kim,&nbsp;Jin Hee Park","doi":"10.1186/s13765-023-00849-4","DOIUrl":"10.1186/s13765-023-00849-4","url":null,"abstract":"<div><p>Smart farms and precision agriculture require automatic monitoring and supply of water and nutrients for crops, but sensors to monitor plant available nutrients in soil are not available. Soil electrical conductivity (EC) is related to nutrients in soil solution, which can be affected by soil organic matter, soil texture, temperature, and water content. Therefore, the objective of this study is to evaluate factors influencing soil EC sensor values by monitoring EC under different soil organic matter and water contents. Ten soil samples with various sand and clay contents, EC, pH, and organic matter contents were selected and saturated with water. Volumetric water content and EC of the soil were monitored while drying the soil. Humic acid and manure were added to soils in order to evaluate the effect of organic matter on soil EC. Soil EC values linearly increased with increasing water content at 10–25% which is favorable water content for plant growth. The EC increased when organic matter was added to soils, which was related to ions released from the organic matter. Soil EC calibration factor for soil water content increased when EC of the soil was high and organic matter was added. The sensor EC values in sandy loam and loam soils was related to the ion contents in pore water, and exchangeable ions in soil, respectively. Sensor EC values were highly correlated with organic matter and K contents in soil and can be used as an indicator for plant available nutrients in soil. Therefore, the sensor EC at optimal soil water content for plant growth can be used to monitor changes in plant available nutrients in soil.</p></div>","PeriodicalId":467,"journal":{"name":"Applied Biological Chemistry","volume":"67 1","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://applbiolchem.springeropen.com/counter/pdf/10.1186/s13765-023-00849-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139081490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}