{"title":"Hyperwilsol A, a highly modified 2-nor-polycyclic polyprenylated acylphloroglucinol possessing an unusual 6/6/5/5 spirotetracyclic skeleton from Hypericum wilsonii","authors":"Zi-Xuan Wang, Na-Na Chen, Qi-Qi Zhao, Hongbo Wei, Lingli Liu, Xi-Tao Yan","doi":"10.1016/j.phytochem.2025.114561","DOIUrl":"10.1016/j.phytochem.2025.114561","url":null,"abstract":"<div><div><em>Hypericum</em> species are rich in polycyclic polyprenylated acylphloroglucinols (PPAPs), a class of structurally complex metabolites with diverse biological activities. A phytochemical investigation of the aerial parts of <em>Hypericum wilsonii</em> led to the discovery of four previously undescribed PPAPs, hyperwilsols A–D (<strong>1</strong>–<strong>4</strong>), along with 16 known related compounds (<strong>5</strong>–<strong>20</strong>). Notably, hyperwilsol A (<strong>1</strong>) featured a highly modified 6/6/5/5 tetracyclic system based on a rare spiro[1,2-dioxane-3,11'-[3,12]dioxatricyclo[6.4.0.0<sup>1,5</sup>]dodecane] scaffold. The structures with absolute configurations were established by spectroscopic analysis, computer-assisted structure elucidation method, single-crystal X-ray diffraction, and NMR and ECD calculations. Additionally, all isolates were evaluated for their anti-neuroinflammatory and neuroprotective effects. Hyperuralone A (<strong>16</strong>) and yezo'otogirin A (<strong>17</strong>) exhibited inhibition of lipopolysaccharide-induced nitric oxide production in BV-2 cells, with their IC<sub>50</sub> values of 7.11 ± 0.50 and 10.18 ± 1.75 μM, respectively. Hyperwilsols A–C (<strong>1</strong>–<strong>3</strong>), hyperscabin K (<strong>9</strong>), and hypelodin B (<strong>10</strong>) showed noticeable neuroprotective activity against H<sub>2</sub>O<sub>2</sub>-induced PC-12 cell injury. These findings not only enriched the structural diversity of natural PPAPs but also highlighted their potential in the prevention and treatment of neurodegenerative diseases.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114561"},"PeriodicalIF":3.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Schincarins G‒R: 3,4-secolanostane triterpenoids from the stems of Schisandra incarnata","authors":"Wanpeng Li , Xiaogang Peng , Xianggao Meng , Hengyi Yu , Hanli Ruan","doi":"10.1016/j.phytochem.2025.114562","DOIUrl":"10.1016/j.phytochem.2025.114562","url":null,"abstract":"<div><div>Twelve previously undescribed 3,4-secolanostane triterpenoids, schincarins G‒R (<strong>1</strong>–<strong>12</strong>), were obtained from the methanol extract of the stems of <em>Schisandra incarnata.</em> Their structures and absolute configurations were determined based on spectroscopic analysis and single-crystal X-ray diffraction. Schincarins G and H represent the first examples of 3,4-secolanostane-type triterpenoids featuring a tricyclic 5/6/5 fused carbon skeleton. Schincarins M and Q exhibit moderate inhibition against ConA-induced T cell proliferation with IC<sub>50</sub> values of 20.5 and 20.0 μM, respectively, and against LPS-induced B cell proliferation with IC<sub>50</sub> values of 15.0 and 22.2 μM, respectively. Schincarin L demonstrates selective inhibition against LPS-induced B cell proliferation with IC<sub>50</sub> value of 24.1 μM.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114562"},"PeriodicalIF":3.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-26DOI: 10.1016/j.phytochem.2025.114560
Tian-Ming Lv , Zhi‐Yuan Li , Li-Li Lou , Le Chen , Xiao‐Xiao Huang , Shao‐Jiang Song
{"title":"Discovery of the rare dimeric guaianes and their monomers from the Daphne penicillata Rehd","authors":"Tian-Ming Lv , Zhi‐Yuan Li , Li-Li Lou , Le Chen , Xiao‐Xiao Huang , Shao‐Jiang Song","doi":"10.1016/j.phytochem.2025.114560","DOIUrl":"10.1016/j.phytochem.2025.114560","url":null,"abstract":"<div><div>Two previously undescribed dimeric guaianes (<strong>1–2</strong>) sharing 7/5/5/5/7 scaffolds and three undescribed guaiane-type sesquiterpenoids (<strong>3–5</strong>) were isolated from the <em>Daphne penicillata</em> Rehd. Their structures were identified by NMR spectroscopic analysis, and quantum chemical calculations. The neuroprotective activities to protect SH-SY5Y cells from oxidave damage were tested and <strong>4</strong> and <strong>5</strong> exhibited potential neuroprotective effects at 70.38 % and 61.86 %.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114560"},"PeriodicalIF":3.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144173983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing heterogeneous pollution risks from polystyrene micro(nano)plastics and cadmium to physiology and biochemistry in parsley via a split-root system","authors":"Ciara Chun Chen, Zehui Huang, Xuesong Zhao, Zhengguo Song, Minling Gao","doi":"10.1016/j.phytochem.2025.114565","DOIUrl":"10.1016/j.phytochem.2025.114565","url":null,"abstract":"<div><div>The coexistence of micro(nano)plastics and heavy metals in agricultural ecosystems has garnered significant attention due to their complex threats to crop productivity and food safety. This study investigated the impacts of polystyrene (PS) micro(nano)plastics and cadmium (Cd) on the growth and biochemical characteristics of parsley, utilizing a split-root system to better capture the often-overlooked heterogeneous pollution patterns present in real agricultural environments. Localized responses were assessed through fresh weight and oxidative stress indicators including reactive oxygen species, antioxidant enzymes, and lipid peroxidation in split roots. Systemic responses were evaluated by fresh weight and bioactive substances including flavonoids, polyphenols, ascorbic acid (AsA), and α-pinene in leaves. Results for localized responses demonstrated that the growth inhibition and oxidative damage occurred in split roots under the coupled stresses were primarily driven by Cd. Notably, these effects were confined to the Cd exposure site, leaving the Cd-uncontaminated portion unharmed, highlighting the plant's self-protective mechanism to localize damage under heterogeneous pollution. Observations on systemic responses indicated that the leaf growth was not substantially hindered unless both sides of the split roots were exposed to Cd, which was attributed to the plant defense mechanism primarily activated by Cd and promoted by excessive PS nanoplastics. This mechanism particularly involved the antioxidant properties of non-flavonoid polyphenols, AsA, and α-pinene, exhibiting a multifaceted strategy employed by parsley to cope with complex contaminations. This work enhances our understanding of plant resilience in agricultural settings and offers insights for developing more nuanced agricultural practices.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114565"},"PeriodicalIF":3.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-24DOI: 10.1016/j.phytochem.2025.114563
Si-Qi Chen , Ji-Hui Zhang , Xia Tang , Miao-Yu Lai , Xue-Qing Lv , Zhong-Qiu Liu , Li-Xin Duan , Yuan-Yuan Cheng , Guo-Cai Wang , Peng Wu
{"title":"Nudifloids O–R, four undescribed diterpenoids from Callicarpa nudiflora with anti-inflammatory activity","authors":"Si-Qi Chen , Ji-Hui Zhang , Xia Tang , Miao-Yu Lai , Xue-Qing Lv , Zhong-Qiu Liu , Li-Xin Duan , Yuan-Yuan Cheng , Guo-Cai Wang , Peng Wu","doi":"10.1016/j.phytochem.2025.114563","DOIUrl":"10.1016/j.phytochem.2025.114563","url":null,"abstract":"<div><div>Four undescribed 3,4-seco-labdane diterpenoid derivatives (nudifloids O–R) along with 12 known terpenoids were isolated from the aerial part of <em>Callicarpa nudiflora</em> Hook. et Arn. Nudifloids O and P (compounds <strong>1</strong> and <strong>2</strong>) represent the first examples of 3,4-seco-labdane diterpenoid coupled with 2-methylene-3-butenal likely <em>via</em> the Diels–Alder reaction, forming a rare cyclohexene moiety. The structures including absolute configurations were elucidated using comprehensive spectral data, calculated <sup>13</sup>C NMR-DP4+ probability analysis, and electronic circular dichroism. Putative biosynthetic pathways for nudifloids O and P were proposed. All isolates were evaluated for their inhibitory activities on NO and IL-1<em>β</em> production in the LPS-stimulated RAW 264.7 macrophage cells. Nudifloids P (compound <strong>2</strong>) showed potent inhibitory activities against IL-1<em>β</em> and NO production.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114563"},"PeriodicalIF":3.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Astraeusols A-E: lanostane-type triterpenes from the wild edible mushroom Astraeus asiaticus","authors":"Jedsada Maliwong , Nitirat Chimnoi , Natsajee Nualkaew , Somsak Ruchirawat , Tripetch Kanchanapoom","doi":"10.1016/j.phytochem.2025.114564","DOIUrl":"10.1016/j.phytochem.2025.114564","url":null,"abstract":"<div><div>Five previously undescribed lanostane-type triterpenes, astraeusols A-E (<strong>1</strong>–<strong>5</strong>), along with astraeusin M (<strong>6</strong>), astrasiate (<strong>7</strong>), astraeusin A (<strong>8</strong>), artabotryol A (<strong>9</strong>), artabotryol B (<strong>10</strong>), artabotryol C2 (<strong>11</strong>), cerevisterol (<strong>12</strong>), 6-<em>epi</em>-cerevisterol (<strong>13</strong>), and linoleic acid (<strong>14</strong>), were isolated from the fruiting bodies of the Thai wild edible mushroom <em>Astraeus asiaticus</em>. Astraeusols D (<strong>4</strong>) and E (<strong>5</strong>) were identified as lanostane triterpenes linked to phenylethylamine through amide linkages for the first time from a natural source. The configuration at C-25 of the original structure of artabotryol C2 (<strong>11</strong>) was revised from 25<em>R</em> to 25<em>S</em>. The structural determinations were based on physical data and spectroscopic evidence, including 1D and 2D NMR analyses.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114564"},"PeriodicalIF":3.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-23DOI: 10.1016/j.phytochem.2025.114549
Késya Amanda Dantas Rocha , Edilberto Rocha Silveira , Tércio de Freitas Paulo , Alejandro Pedro Ayala , Bruno Marques Soares , Sarah Sant’Anna Maranhão , Cláudia do Ó Pessoa , Iury Araújo Paz , Maria Lidia Barroso Rodrigues , Nilberto Robson Falcão do Nascimento , Kirley Marques Canuto , Otília Deusdenia Loiola Pessoa
{"title":"Bioactive withanolides from the leaves of Athenaea velutina (Sendtn.) D'Arcy","authors":"Késya Amanda Dantas Rocha , Edilberto Rocha Silveira , Tércio de Freitas Paulo , Alejandro Pedro Ayala , Bruno Marques Soares , Sarah Sant’Anna Maranhão , Cláudia do Ó Pessoa , Iury Araújo Paz , Maria Lidia Barroso Rodrigues , Nilberto Robson Falcão do Nascimento , Kirley Marques Canuto , Otília Deusdenia Loiola Pessoa","doi":"10.1016/j.phytochem.2025.114549","DOIUrl":"10.1016/j.phytochem.2025.114549","url":null,"abstract":"<div><div>Withanolides are a substantial bio-diverse group of naturally occurring steroidal lactones. Herein, ten still undescribed withanolides (<strong>1</strong>–<strong>10</strong>), along with the knowns withaferin A (<strong>11</strong>), 2,3-dihidrowithaferin A (<strong>12</strong>), and two other non-withanolides, vomifoliol (<strong>13</strong>) and the <em>N-trans-p-</em>coumaroyltyramine (<strong>14</strong>), were isolated from the hexane/EtOAc 1:1 leaf extract of <em>Athenaea velutina</em> (Sendtn.) D'Arcy (Solanaceae). The structures of the undescribed withanolides were elucidated by an extensive analysis of their spectroscopic data: 1D and 2D NMR, HRESIMS, single-crystal X-ray diffraction, and ECD calculations. The antiproliferative properties of the withanolides were evaluated against the human cancer cell lines: central nervous system (SNB-19), prostate (PC-3), colon (HCT-116), and leukemia (HL-60), and a <em>murine</em> fibroblast-like cell (L-929). Withanolides <strong>15</strong>–<strong>17</strong>, isolated from the same plant in a previous work, were included for the pharmacological tests. Compounds <strong>15</strong> and <strong>16</strong> exhibited cytotoxic activity for all cancer cells, while <strong>2</strong> was selectively more cytotoxic to HL-60 cells. In addition, the withanolides were evaluated in guinea pig cardiac tissues. Compounds <strong>15</strong> and <strong>16</strong> showed cardiotonic activity, devoid of a positive chronotropic effect which is a good pharmacological profile for an inotrope agent.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114549"},"PeriodicalIF":3.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144143381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-22DOI: 10.1016/j.phytochem.2025.114554
Xilan Jiang , Lun Wang , Yao Chen , Yi Zuo , Mengdan Liu , Bin Chen , Dong Fu , Yujiao He , Mingkui Wang , Ting Shen , Fu Li
{"title":"UV-guided separation of polyacetylenol glycosides from the edible roots of Codonopsis pilosula and their anti-inflammatory activity","authors":"Xilan Jiang , Lun Wang , Yao Chen , Yi Zuo , Mengdan Liu , Bin Chen , Dong Fu , Yujiao He , Mingkui Wang , Ting Shen , Fu Li","doi":"10.1016/j.phytochem.2025.114554","DOIUrl":"10.1016/j.phytochem.2025.114554","url":null,"abstract":"<div><div>The UV-guided separation of polyacetylenes from the edible roots of <em>Codonopsis pilosula</em> resulted in the elucidation of nine previously undescribed C<sub>14</sub>-polyacetylenol glycosides, named codonopilodiynosides II-VIII (<strong>1</strong>−<strong>7</strong>) and codonopiloenynenosides C and D (<strong>8</strong> and <strong>9</strong>), along with sixteen known analogues (<strong>10</strong>−<strong>25</strong>). The structures of the undescribed polyacetylenes were elucidated by spectroscopic data including UV, IR, HRESIMS, NMR, modified Mosher's analysis and Mo<sub>2</sub>(OAc)<sub>4</sub>-induced ECD experiments. The inhibitory effects of the isolated compounds on lipopolysaccharide-induced nitric oxide production in RAW 264.7 cells were tested. Compounds <strong>1</strong>, <strong>11</strong> and <strong>25</strong> exhibited better <em>in vitro</em> anti-inflammatory activity with IC<sub>50</sub> values ranging from 35.49 ± 0.09 to 51.85 ± 0.11 μM than dexamethasone with IC<sub>50</sub> value of 80.22 ± 0.24 μM. Besides, compounds <strong>1</strong>, <strong>11</strong> and <strong>25</strong> decreased the levels of TNF-α and IL-6 in a dose-dependent manner. The results indicated the roots of <em>C. pilosula</em> might be developed into drugs for treating inflammation related diseases.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114554"},"PeriodicalIF":3.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-22DOI: 10.1016/j.phytochem.2025.114553
Caitlin C. Rering, Geoffrey T. Broadhead, John J. Beck
{"title":"Guidelines and practical considerations for liquid or gas chromatography tandem mass spectrometry-based studies in Phytochemistry Ecological Biochemistry and Chemistry article types","authors":"Caitlin C. Rering, Geoffrey T. Broadhead, John J. Beck","doi":"10.1016/j.phytochem.2025.114553","DOIUrl":"10.1016/j.phytochem.2025.114553","url":null,"abstract":"<div><div>Plants are foundational to all life on earth. As such, they and their metabolites are central to research spanning many disciplines and interests. <em>Phytochemistry</em> is dedicated to exploring the stunning array of plant metabolites and their impacts on other organisms. The <em>Phytochemistry</em> article type Ecological Biochemistry and Chemistry welcomes research articles reporting results of plant-based chemical ecology studies that explore chemically mediated interactions between plants, the environment, microbes, and/or insects. This may include studies involving plant adaptation to biotic and abiotic stressors via defense metabolites, attraction or facilitation of mutualists with rewards, and chemical communication between organisms. In this Editorial Comment we provide guidelines for future Ecological Biochemistry and Chemistry-article type authors, with particular focus on gas and liquid chromatography with mass spectrometry detection, to ensure <em>Phytochemistry</em> articles remain reproducible, of high-quality, and highly cited. Our commentary covers the entire analytical workflow, including experimental design, sample collection and extraction, instrumental methods, chemical data analysis, statistical analyses, and reporting.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114553"},"PeriodicalIF":3.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144143382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PhytochemistryPub Date : 2025-05-22DOI: 10.1016/j.phytochem.2025.114556
Jing Wu , Wei Wu , Mei-Feng Bao, Yang Yu, Xiang-Hai Cai
{"title":"Aspidosperma-type bisindole alkaloids from Melodinus suaveolens and their antiproliferative activities","authors":"Jing Wu , Wei Wu , Mei-Feng Bao, Yang Yu, Xiang-Hai Cai","doi":"10.1016/j.phytochem.2025.114556","DOIUrl":"10.1016/j.phytochem.2025.114556","url":null,"abstract":"<div><div>Melosuadimins A–L (<strong>1</strong>–<strong>12</strong>), twelve undescribed monoterpenoid dimeric alkaloids with different subsets of aspidosperma-type alkaloid units were isolated from <em>Melodinus suaveolens</em>. Their structures were elucidated through extensive spectroscopic data analysis. Notably, melosuadimin A (<strong>1</strong>) was a vindoline-aspidosperma type bisindole alkaloid with a dihydrofuran ring linkage. Melosuadimins B (<strong>2</strong>) and C (<strong>3</strong>) were proposed as oxidation and ring-opening derivatives of melosuadimin A. Additionally, melosuadimin D (<strong>4</strong>), featuring a unique 1,2-oxazinane ring, was possibly produced through rearrangement from melosuadimin B. The <em>in vitro</em> cytotoxic potential of these compounds against three colorectal cancer cell lines was evaluated, revealing that <strong>2</strong> exhibited marked antiproliferative activity, inducing apoptosis and G2/M cell cycle arrest.</div></div>","PeriodicalId":20170,"journal":{"name":"Phytochemistry","volume":"238 ","pages":"Article 114556"},"PeriodicalIF":3.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}