Background Cotton crop is infested by numerous arthropod pests from sowing to harvesting,causing substantial direct and indirect yield losses.Knowledge of seasonal population trends and the relative occurrence of pest...Background Cotton crop is infested by numerous arthropod pests from sowing to harvesting,causing substantial direct and indirect yield losses.Knowledge of seasonal population trends and the relative occurrence of pests and their natural enemies is required to minimize the pest population and yield losses.In the current study,analysis of the seasonal population trend of pests and natural enemies and their relative occurrence on cultivars of three cotton species in Central India has been carried out.Results A higher number and diversity of sucking pests were observed during the vegetative cotton growth stage(60 days after sowing),declining as the crop matured.With the exception of cotton jassid(Amrasca biguttula biguttula Ishida),which caused significant crop damage mainly from August to September;populations of other sucking insects seldom reached economic threshold levels(ETL)throughout the studied period.The bollworm complex populations were minimal,except for the pink bollworm(Pectinophora gossypiella Saunders),which re-emerged as a menace to cotton crops during the cotton cropping season 2017–2018 due to resistance development against Bt-cotton.A reasonably good number of predatory arthropods,including coccinellids,lacewings,and spiders,were found actively preying on the arthropod pest complex of the cotton crop during the early vegetative growth stage.Linear regression indicates a significant relationship between green boll infestations and pink bollworm moths in pheromone traps.Multiple linear regression analyse showed mean weekly weather at one-or two-week lag periods had a significant impact on sucking pest population(cotton aphid,cotton jassid,cotton whitefly,and onion thrips)fluctuation.Gossypium hirsutum cultivars RCH 2 and DCH 32,and G.barbadense cultivar Suvin were found susceptible to cotton jassid and onion thrips.Phule Dhanvantary,an G.arboreum cotton cultivar,demonstrated the highest tolerance among all evaluated cultivars against all sucking pests.Conclusion These findings have important implications for pest management in cotton crops.Susceptible cultivars warrant more attention for plant protection measures,making them more input-intensive.The choice of appropriate cultivars can help minimize input costs,thereby increasing net returns for cotton farmers.展开更多
Spores and pollen,as ubiquitous organisms found in nature,possess a remarkable core-shell structure and intricate surface morphology.These tiny particles are notable for their dimensional uniformity,sustainable utiliz...Spores and pollen,as ubiquitous organisms found in nature,possess a remarkable core-shell structure and intricate surface morphology.These tiny particles are notable for their dimensional uniformity,sustainable utilization,environmental friendliness,porosity,amphiphilicity,and strong adhesive properties.In addition,they display excellent biocompatibility and biodegradability,which significantly enhances the stability and targeting of drugs within the body.Spores and pollen can be extracted using methods such as acidic solutions,alkaline solutions,or enzyme treatments to obtain sporopollenin,which is an extremely resilient and chemically inert complex biopolymer.The sporopollenin extracted through this process removes the original bioactive substances,such as cell nuclei,enzymes,and DNA,providing greater drug loading capacity and containing no potential allergens or immunogens,thus further enhancing its drug loading capacity and improving safety in therapeutic applications.Due to these beneficial attributes,spores,pollen and sporopollenin have gained widespread use in a variety of drug delivery systems,such as targeted delivery,sustained drug delivery,toxicity mitigation,flavor masking,vaccine delivery,delivery of labile substances,and other applications.This review introduces the types of natural spores and pollen commonly used in drug delivery systems,including their main components,common effects,and uses in drug delivery systems,and so on.It subsequently summarizes novel optimization methods in their processing,such as physical treatment,surface modification,and chemical modification,which enable higher drug loading efficiency,stability,and targeting,among other benefits.Additionally,this paper reviews the research progress and applications of natural spores,pollen,and sporopollenin in drug delivery systems,while also touching on some innovative research content,such as novel nanomotor microcarriers developed based on pollen.Based on these research findings,we further elaborate on the advantages of spores,pollen,and sporopollenin in drug delivery systems.For example,they have high stability and drug loading capacity,good adhesion,excellent targeting,and are easy to modify functionally.Currently,they show promising prospects in the fields of targeted drug delivery,sustained-release drug delivery,as well as the delivery of drugs that are effective but slightly toxic,and are often used in research on the treatment of diseases such as cancer and inflammation.We have also highlighted the challenges they face in various applications and identified some issues that need to be addressed,including difficulties in largescale production,the need to improve extraction and purification processes,and the existence of a low but still noteworthy risk of allergies,in order to fully leverage their potential in drug delivery applications.According to current research,although spores,pollen,and sporopollenin face some unresolved issues in clinical drug delivery,they still have great potential overall and are expected to become a new generation of green drug delivery platforms.In the future,further research into their unique physical and chemical properties and structural characteristics will help develop more efficient and stable drug delivery systems to meet diverse treatment needs.We believe that continued exploration of natural spores,pollen,and sporopollenin will drive this emerging field to achieve continuous breakthroughs and progress,ultimately making an important contribution to the cause of human health.展开更多
TENORM Regulation in the United States of America post-West Virginia vs.EPA Spenser Lynn,Charles Wilson,Emily Caffrey1(1.University of Alabama at Birmingham,School of Health Professions,Clinical and Diagnostic Science...TENORM Regulation in the United States of America post-West Virginia vs.EPA Spenser Lynn,Charles Wilson,Emily Caffrey1(1.University of Alabama at Birmingham,School of Health Professions,Clinical and Diagnostic Sciences,Health Physics Program,1720 University Blvd,Birmingham,AL 35294)Abstract:The regulation of technologically enhanced naturally occurring radioactive materials(TENORM)in the United States of America consists of fragmentary rules split between the federal and state governments.展开更多
"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People's Rep..."Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People's Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of North east People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.展开更多
Natural Gas IndustryB创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的Science Direct平台双月出版。创刊至今,Natural Gas IndustryB始终秉承“报道天然气领域前沿学术研究,展示工程技...Natural Gas IndustryB创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的Science Direct平台双月出版。创刊至今,Natural Gas IndustryB始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。展开更多
Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程...Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。期刊现被ESCI、Scopus、GeoRef、INSPEC、NASA ADS等数据库检索,获得了国际学术界的广泛认可。2024年,期刊获得Web of Science影响因子4.2,进入科睿唯安JCR报告ENERGY&FUELS学科Q2区,2025年,期刊进入中科院《期刊分区表》工程技术大类2区,能源与燃料小类2区。展开更多
Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程...Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。展开更多
2025年3月17日,国际顶级学术期刊《自然·遗传学》(Nature Genetics)刊发题为“Genomic analysis of 1325 Camellia accessions sheds light on agronomic and metabolic traits for tea plant improvement”的研究性论文。该研究...2025年3月17日,国际顶级学术期刊《自然·遗传学》(Nature Genetics)刊发题为“Genomic analysis of 1325 Camellia accessions sheds light on agronomic and metabolic traits for tea plant improvement”的研究性论文。该研究由福建省农业科学院茶叶研究所与中国农业科学院农业基因组研究所等多家单位合作完成。本研究通过对茶树及其近缘种的基因组进行深度重测序,构建了全面的茶树基因组遗传变异图谱,进而揭示了茶树的遗传多样性及其驯化状态。其结果为茶树的遗传进化和精准设计育种提供了有益见解以及重要参考资料。展开更多
The reproduction characteristics of Aprostocetus prolixus, which is a new parasitioid on Apriona germarii, were studied. It demonstrated that the female adult can generate offspring by either sex reproduction or parth...The reproduction characteristics of Aprostocetus prolixus, which is a new parasitioid on Apriona germarii, were studied. It demonstrated that the female adult can generate offspring by either sex reproduction or parthenogenesis, but all the offspring were male if they were from the mode of parthenogenesis. The sex ratio, with investigating in nature, was 2.38∶1. The environmental conditions had notable influence on sex ratio, survival ratio and fecundity. Its sex ratio increased to 3.48∶1 by feeding complementary nutrition that adding with 20% honey. The temperature has great effect on Aprostocetus prolixus in terms of system research, of which adult longevity decreased with temperature from 17.5 ℃ to 35 ℃ and its ability of reproduction increased between 25 ℃ and 30 ℃ but the acme at 27.5 ℃. Without the feeding complementary nutrition, on the other hand, the female adult will both lose the ability of fecundity at the temperature below 17.5 ℃ and over 35 ℃. With humidity increasing from 40% to 80%, its fecundity increased significantly. It also showed that there was no significant influence of temperature on fecundity between the 4 ℃ to 8 ℃ when cold storage( i.e. the matured larvae for 90 d, the adults for 10 d and the host egg for 40 d).展开更多
基金Funding support for the Crop Pest Surveillance and Advisory Project(CROPSAP)。
文摘Background Cotton crop is infested by numerous arthropod pests from sowing to harvesting,causing substantial direct and indirect yield losses.Knowledge of seasonal population trends and the relative occurrence of pests and their natural enemies is required to minimize the pest population and yield losses.In the current study,analysis of the seasonal population trend of pests and natural enemies and their relative occurrence on cultivars of three cotton species in Central India has been carried out.Results A higher number and diversity of sucking pests were observed during the vegetative cotton growth stage(60 days after sowing),declining as the crop matured.With the exception of cotton jassid(Amrasca biguttula biguttula Ishida),which caused significant crop damage mainly from August to September;populations of other sucking insects seldom reached economic threshold levels(ETL)throughout the studied period.The bollworm complex populations were minimal,except for the pink bollworm(Pectinophora gossypiella Saunders),which re-emerged as a menace to cotton crops during the cotton cropping season 2017–2018 due to resistance development against Bt-cotton.A reasonably good number of predatory arthropods,including coccinellids,lacewings,and spiders,were found actively preying on the arthropod pest complex of the cotton crop during the early vegetative growth stage.Linear regression indicates a significant relationship between green boll infestations and pink bollworm moths in pheromone traps.Multiple linear regression analyse showed mean weekly weather at one-or two-week lag periods had a significant impact on sucking pest population(cotton aphid,cotton jassid,cotton whitefly,and onion thrips)fluctuation.Gossypium hirsutum cultivars RCH 2 and DCH 32,and G.barbadense cultivar Suvin were found susceptible to cotton jassid and onion thrips.Phule Dhanvantary,an G.arboreum cotton cultivar,demonstrated the highest tolerance among all evaluated cultivars against all sucking pests.Conclusion These findings have important implications for pest management in cotton crops.Susceptible cultivars warrant more attention for plant protection measures,making them more input-intensive.The choice of appropriate cultivars can help minimize input costs,thereby increasing net returns for cotton farmers.
基金supported by a grant from The National Natural Science Foundation of China(32000997)。
文摘Spores and pollen,as ubiquitous organisms found in nature,possess a remarkable core-shell structure and intricate surface morphology.These tiny particles are notable for their dimensional uniformity,sustainable utilization,environmental friendliness,porosity,amphiphilicity,and strong adhesive properties.In addition,they display excellent biocompatibility and biodegradability,which significantly enhances the stability and targeting of drugs within the body.Spores and pollen can be extracted using methods such as acidic solutions,alkaline solutions,or enzyme treatments to obtain sporopollenin,which is an extremely resilient and chemically inert complex biopolymer.The sporopollenin extracted through this process removes the original bioactive substances,such as cell nuclei,enzymes,and DNA,providing greater drug loading capacity and containing no potential allergens or immunogens,thus further enhancing its drug loading capacity and improving safety in therapeutic applications.Due to these beneficial attributes,spores,pollen and sporopollenin have gained widespread use in a variety of drug delivery systems,such as targeted delivery,sustained drug delivery,toxicity mitigation,flavor masking,vaccine delivery,delivery of labile substances,and other applications.This review introduces the types of natural spores and pollen commonly used in drug delivery systems,including their main components,common effects,and uses in drug delivery systems,and so on.It subsequently summarizes novel optimization methods in their processing,such as physical treatment,surface modification,and chemical modification,which enable higher drug loading efficiency,stability,and targeting,among other benefits.Additionally,this paper reviews the research progress and applications of natural spores,pollen,and sporopollenin in drug delivery systems,while also touching on some innovative research content,such as novel nanomotor microcarriers developed based on pollen.Based on these research findings,we further elaborate on the advantages of spores,pollen,and sporopollenin in drug delivery systems.For example,they have high stability and drug loading capacity,good adhesion,excellent targeting,and are easy to modify functionally.Currently,they show promising prospects in the fields of targeted drug delivery,sustained-release drug delivery,as well as the delivery of drugs that are effective but slightly toxic,and are often used in research on the treatment of diseases such as cancer and inflammation.We have also highlighted the challenges they face in various applications and identified some issues that need to be addressed,including difficulties in largescale production,the need to improve extraction and purification processes,and the existence of a low but still noteworthy risk of allergies,in order to fully leverage their potential in drug delivery applications.According to current research,although spores,pollen,and sporopollenin face some unresolved issues in clinical drug delivery,they still have great potential overall and are expected to become a new generation of green drug delivery platforms.In the future,further research into their unique physical and chemical properties and structural characteristics will help develop more efficient and stable drug delivery systems to meet diverse treatment needs.We believe that continued exploration of natural spores,pollen,and sporopollenin will drive this emerging field to achieve continuous breakthroughs and progress,ultimately making an important contribution to the cause of human health.
文摘TENORM Regulation in the United States of America post-West Virginia vs.EPA Spenser Lynn,Charles Wilson,Emily Caffrey1(1.University of Alabama at Birmingham,School of Health Professions,Clinical and Diagnostic Sciences,Health Physics Program,1720 University Blvd,Birmingham,AL 35294)Abstract:The regulation of technologically enhanced naturally occurring radioactive materials(TENORM)in the United States of America consists of fragmentary rules split between the federal and state governments.
文摘"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the People's Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of North east People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.
文摘Natural Gas IndustryB创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的Science Direct平台双月出版。创刊至今,Natural Gas IndustryB始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。
文摘Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。期刊现被ESCI、Scopus、GeoRef、INSPEC、NASA ADS等数据库检索,获得了国际学术界的广泛认可。2024年,期刊获得Web of Science影响因子4.2,进入科睿唯安JCR报告ENERGY&FUELS学科Q2区,2025年,期刊进入中科院《期刊分区表》工程技术大类2区,能源与燃料小类2区。
文摘Natural Gas Industry B创刊于2014年,是天然气工业杂志社与KeAi公司合作出版的一本开放获取型国际期刊,在爱思唯尔旗下的ScienceDirect平台双月出版。创刊至今,Natural Gas Industry B始终秉承“报道天然气领域前沿学术研究,展示工程技术发展趋势,以理论研究成果推动工程技术进步”的办刊宗旨,服务全球天然气产业,并积极推动能源行业碳减排和低碳转型的发展。
文摘2025年3月17日,国际顶级学术期刊《自然·遗传学》(Nature Genetics)刊发题为“Genomic analysis of 1325 Camellia accessions sheds light on agronomic and metabolic traits for tea plant improvement”的研究性论文。该研究由福建省农业科学院茶叶研究所与中国农业科学院农业基因组研究所等多家单位合作完成。本研究通过对茶树及其近缘种的基因组进行深度重测序,构建了全面的茶树基因组遗传变异图谱,进而揭示了茶树的遗传多样性及其驯化状态。其结果为茶树的遗传进化和精准设计育种提供了有益见解以及重要参考资料。
文摘The reproduction characteristics of Aprostocetus prolixus, which is a new parasitioid on Apriona germarii, were studied. It demonstrated that the female adult can generate offspring by either sex reproduction or parthenogenesis, but all the offspring were male if they were from the mode of parthenogenesis. The sex ratio, with investigating in nature, was 2.38∶1. The environmental conditions had notable influence on sex ratio, survival ratio and fecundity. Its sex ratio increased to 3.48∶1 by feeding complementary nutrition that adding with 20% honey. The temperature has great effect on Aprostocetus prolixus in terms of system research, of which adult longevity decreased with temperature from 17.5 ℃ to 35 ℃ and its ability of reproduction increased between 25 ℃ and 30 ℃ but the acme at 27.5 ℃. Without the feeding complementary nutrition, on the other hand, the female adult will both lose the ability of fecundity at the temperature below 17.5 ℃ and over 35 ℃. With humidity increasing from 40% to 80%, its fecundity increased significantly. It also showed that there was no significant influence of temperature on fecundity between the 4 ℃ to 8 ℃ when cold storage( i.e. the matured larvae for 90 d, the adults for 10 d and the host egg for 40 d).
