Industrial activities have caused widespread arsenic(As)contamination in soil and medicinal crops across south-ern Asia.This study constructed interplanting systems combing medicinal crops with Pteris vittata L.,aimin...Industrial activities have caused widespread arsenic(As)contamination in soil and medicinal crops across south-ern Asia.This study constructed interplanting systems combing medicinal crops with Pteris vittata L.,aiming to mitigate the risk of As exposure in medicinal crops,while simultaneously achieving ecological remediation of contaminated soil.The results revealed that interplanting with P.vittata significantly enhanced the yield of Gynos-temma pentaphyllum by 31.90%(P<0.05)compared with monoculture systems.Under monoculture conditions,the As concentration in G.pentaphyllum leaves reached 2.34 mg/kg,exceeding the national food safety standard(GB2762–2017,2 mg/kg).However,interplanting with P.vittata effectively reduced the As concentration in G.pentaphyllum leaves to 1.82 mg/kg.Furthermore,the interplanting of P.vittata with Rhus chinensis significantly inhibited As translocation from belowground to aboveground tissues in R.chinensis.Compared to monoculture,the stem biomass of P.vittata was significantly increased by 57.50%and 70.32%when interplanted with G.pentaphyllum and Cassia obtusifolia L.(P<0.05).So the As enrichment of P.vittata was enhanced in interplanting systems,which is beneficial for the As removal from contaminated soil.The study demonstrated that interplant-ing primarily regulates plant As uptake through modifications of rhizosphere physicochemical properties and As bioavailability,especially for water-soluble As that is easily absorbed by plants.In conclusion,the interplant-ing models integrating medicinal crops and P.vittata can achieve the goal of“remediating while producing”in As-contaminated soil.展开更多
Ceratopteris thalictroides (L.) Brongn (C. thalictroides), a fern from the Pteridaceae family, isan edible species that remains largely underutilized, even though it possesses a diverserange of applications. This revi...Ceratopteris thalictroides (L.) Brongn (C. thalictroides), a fern from the Pteridaceae family, isan edible species that remains largely underutilized, even though it possesses a diverserange of applications. This review aims to provide a comprehensive overview of itsgeographical distribution, ethnomedicinal applications, phytochemical constituents,pharmacological activities, and ecological importance. Various phytochemical analysesidentified the presence of phenols, flavonoids, alkaloids, terpenoids, and fatty acids from C.thalictroides, responsible for its multiple pharmacological properties, including antioxidant,antimicrobial, anti-inflammatory, anti-diabetic, and anticancer activities. Additionally, itsunique antheridiogen activity makes it a valuable model organism for plant genetics andreproductive studies. This review systematically summarizes the phytopharmacologicalpotential and ecological significance of C. thalictroides. The plant holds promise as a sourceof novel therapeutics and as a sustainable bioresource for pharmaceutical andenvironmental applications.展开更多
基金supported by the National Key Research and Development Program of China(No.2020YFC1807805)the Science and Technology Planning Project of Guangzhou,Guangdong Province,China(No.202206010176).
文摘Industrial activities have caused widespread arsenic(As)contamination in soil and medicinal crops across south-ern Asia.This study constructed interplanting systems combing medicinal crops with Pteris vittata L.,aiming to mitigate the risk of As exposure in medicinal crops,while simultaneously achieving ecological remediation of contaminated soil.The results revealed that interplanting with P.vittata significantly enhanced the yield of Gynos-temma pentaphyllum by 31.90%(P<0.05)compared with monoculture systems.Under monoculture conditions,the As concentration in G.pentaphyllum leaves reached 2.34 mg/kg,exceeding the national food safety standard(GB2762–2017,2 mg/kg).However,interplanting with P.vittata effectively reduced the As concentration in G.pentaphyllum leaves to 1.82 mg/kg.Furthermore,the interplanting of P.vittata with Rhus chinensis significantly inhibited As translocation from belowground to aboveground tissues in R.chinensis.Compared to monoculture,the stem biomass of P.vittata was significantly increased by 57.50%and 70.32%when interplanted with G.pentaphyllum and Cassia obtusifolia L.(P<0.05).So the As enrichment of P.vittata was enhanced in interplanting systems,which is beneficial for the As removal from contaminated soil.The study demonstrated that interplant-ing primarily regulates plant As uptake through modifications of rhizosphere physicochemical properties and As bioavailability,especially for water-soluble As that is easily absorbed by plants.In conclusion,the interplant-ing models integrating medicinal crops and P.vittata can achieve the goal of“remediating while producing”in As-contaminated soil.
基金support and library facilities in accomplishing this part of the study.
文摘Ceratopteris thalictroides (L.) Brongn (C. thalictroides), a fern from the Pteridaceae family, isan edible species that remains largely underutilized, even though it possesses a diverserange of applications. This review aims to provide a comprehensive overview of itsgeographical distribution, ethnomedicinal applications, phytochemical constituents,pharmacological activities, and ecological importance. Various phytochemical analysesidentified the presence of phenols, flavonoids, alkaloids, terpenoids, and fatty acids from C.thalictroides, responsible for its multiple pharmacological properties, including antioxidant,antimicrobial, anti-inflammatory, anti-diabetic, and anticancer activities. Additionally, itsunique antheridiogen activity makes it a valuable model organism for plant genetics andreproductive studies. This review systematically summarizes the phytopharmacologicalpotential and ecological significance of C. thalictroides. The plant holds promise as a sourceof novel therapeutics and as a sustainable bioresource for pharmaceutical andenvironmental applications.
