检索结果-南通市图书馆

Assessment of Agricultural Soil Quality Indices Using Mechanistic Models

Open Journal of Soil Science 2024年第6期14卷 333-352页

作者： Mohammadali Nikpey Javad Robatjazi Shahabeddin Garmehei Hendra Gonsalve W. Lasar Nguyen Khoi Nghia Benjamin Kwadwo Agyei Department of Soil Science Faculty of Agriculture Tarbiat Modarres University Tehran Iran Texas A&M AgriLife Research Department of Soil and Crop Sciences Texas A&M University College Station TX USA Faculty of Soil Sciences College of Agriculture Can Tho University Can Tho Vietnam Department of Plant Soil and Microbial Sciences Michigan State University East Lansing MI USA

Assessing soil quality is a critical strategy for diagnosing soil status and anticipating concerns in land use systems for agricultural sustainability. In this study, two soil quality assessment indices, the Integrated Quality Index (IQI) and Nemoro Quality Index (NQI), were employed using two indicator selection methods: Total Data Set (TDS) and Minimum Data Set (MDS), focusing on agricultural fields in Golestan province, Iran. A total of 89 soil samples were collected and analyzed for particle size distribution, organic carbon, calcium carbonate equivalent (CCE), electrical conductivity (EC), pH, and plant-essential nutrients, including nitrogen, phosphorus, potassium, zinc, copper, manganese, and iron. Principal component analysis (PCA) was used to extract MDS from TDS, and geostatistical adaptation and correlation analyses were performed to determine the optimal soil quality evaluation index. Our results show that the exponential model better suits the spatial structure of soil quality indicators (IQIMDS: 0.955). Conformity and correlation analyses indicate that the IQI index outperformed the NQI index in estimating soil quality. The superiority of the TDS technique over the MDS technique in terms of accuracy (IQITDSs kappa: 0.155). Linear relationships between different methods showed a higher correlation coefficient (R2 = 0.43) through the application of IQI. This study suggests the use of IQIMDS to provide a reliable measurement that is particularly useful in assessing the quality of agricultural soil.

关键词： Soil Quality Geographic Information System Integrated Quality Index Nemoro Quality Index

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High-quality assembled and annotated genomes of Nicotiana tabacum and Nicotiana benthamiana reveal chromosome evolution and changes in defense arsenals

引用

Molecular Plant 2024年第3期17卷 423-437页

作者： Jubin Wang Qingling Zhang Jeffrey Tung Xi Zhang Dan Liu Yingtian Deng Zhendong Tian Huilan Chen Taotao Wang Weixiao Yin Bo Lij Zhibing Lai Savithramma P.Dinesh-Kumar Barbara Baker Feng Li National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China Plant Gene Expression Center Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyBerkeleyCA 94706USA College of Plant Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China Department of Plant Biology and The Genome Center College of Biological SciencesUniversity of CalforniaDavisDavisCA 95616USA The Key Laboratory of Horticultural Plant Genetic and Improvement of Jiangxi Province Institute of Biological ResourcesJiangxi Academy of SciencesNanchang 330299China institute of Vegetables and Flowers Jiangxi Academy of Agricultural SciencesNanchang 330200Chin Hubei Hongshan Laboratory WuhanHubei 430070China

Nicotiana tabacum and Nicotiana benthamiana are widely used models in plant biology ***,genomic studies of these species have *** we report the chromosome-level reference genome assemblies for *** and *** with an estimated 99.5%and 99.8%completeness,*** transcription start and termination site sequencing methods were developed and used for accurate gene annotation in *** analyses revealed evidence for the parental origins and chromosome structural changes,leading to hybrid genome formation of each ***,theantiviral silencinggenesRDR1,RDR6,DCL2,DCL3,andAGO2were lost from one or both subgenomes in ***,while both homeologs were kept in ***,the *** genome encodes fewer immune receptors and signaling components than that of *** find-ings uncover possible reasons underlying the hypersusceptible nature of *** developed the user-friendly Nicomics(http:/***/Nicomics/)web server to facilitate better use of Nicotiana genomic resources as well as gene structure and expression analyses.

关键词： Nicotiana tabacum Nicotiana benthamiana genomics evolution disease resistance NLR

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A conservative distribution of tridomain NDP-heptose synthetases in actinobacteria

引用

Science China(Life Sciences) 2022年第5期65卷 1014-1023页

作者： Yue Tang Wei Tang Min Wang Zhilong Zhang Yihua Chen State Key Laboratory of microbial Resources and CAS Key Laboratory of microbial Physiological and Metabolic Engineering Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Heptoses are important structural components of Gram-negative bacterium cell wall and participate in bacterial colonization,infection,and immune *** knowledge of NDP-heptose originating from D-sedoheptulose 7-phosphate in Grampositive bacterium remains ***,in silico analysis suggested that the special tridomain NDP-heptose synthetases with isomerase,kinase,and nucleotidyltransferase activities are conservatively distributed in Actinobacteria class of Gram-positive *** characterization of the tridomain proteins from different strains showed that they are involved in ADPD-glycero-β-D-manno-heptose biosynthesis despite the unexpected discovery of kinase activities deficient in some *** presence of three types of NDP-heptose synthetases in Gram-positive bacterium suggests that it is also a rich source of heptoses and the heptose moieties may play important roles in *** work updates the understanding of NDP-heptose biosynthesis in Gram-positive bacterium and lays a solid foundation for further physiological function explorations.

关键词： tridomain NDP-heptose synthetase NDP-heptose biosynthesis widespread distribution Gram-positive bacterium

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Traceless enzymatic protein synthesis without ligation sites constraint

引用

National Science Review 2022年第5期9卷 108-118页

作者： Ruifeng Li Marcel Schmidt Tong Zhu Xinyu Yang Jing Feng Yu'e Tian Yinglu Cui Timo Nuijens Bian Wu CAS Key Laboratory of microbial Physiological and Metabolic Engineering State Key Laboratory of Microbial ResourcesInstitute of Microbiology Chinese Academy of Sciences University of Chinese Academy of Sciences Fresenius Kabi iPSUM I&D Center EnzyPep B.V.

Protein synthesis and semisynthesis offer immense promise for life sciences and have impacted pharmaceutical *** absence of a generally applicable method for traceless peptide conjugation with a flexible choice of junction sites remains a bottleneck for accessing many important synthetic targets,*** we introduce the PALME(protein activation and ligation with multiple enzymes) platform designed for sequence-unconstrained synthesis and modification of *** upstream activating modules accept and process easily accessible synthetic peptides and recombinant proteins,avoiding the challenges associated with preparation and manipulation of activated peptide ***,the downstream coupling module provides comprehensive solutions for sequential peptide condensation,cyclization and protein N/C-terminal or internal *** practical utility of this methodology is demonstrated by synthesizing a series of bioactive targets ranging from pharmaceutical ingredients to synthetically challenging *** modular PALME platform exhibits unprecedentedly broad accessibility for traceless protein synthesis and functionalization,and holds enormous potential to extend the scope of protein chemistry and synthetic biology.

关键词： protein synthesis traceless peptide ligation biocatalysis synthetic biology chemical biology

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

microbial quorum sensing signaling molecules and their roles in the biosynthesis of natural products

引用

中国科学:生命科学英文版 2023年第10期66卷 2429-2432页

作者： Jihui Zhang Huarong Tan State Key Laboratory of microbial Resources Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China

Microorganisms act as a double-edged sword that can bring benefits and diseases to *** physiological and metabolic processes are under precise control of intricate regulatory networks,in which signaling systems are critical for cells coordinating or competing with each other to overcome unfavorable environmental conditions,including the prompt and acute responses to endogenous or exogenous stimuli.

关键词： prompt overcome precise

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

TabHLH27 orchestrates root growth and drought tolerance to enhance water use efficiency in wheat

引用

Journal of Integrative Plant Biology 2024年第7期66卷 1295-1312页

作者： Dongzhi Wang Xiuxiu Zhang Yuan Cao Aamana Batool Yongxin Xu Yunzhou Qiao Yongpeng Li Hao Wang Xuelei Lin Xiaomin Bie Xiansheng Zhang Ruilian Jing Baodi Dong Yiping Tong Wan Teng Xigang Liu Jun Xiao Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022China Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai'an 271018China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Education Key Laboratory of Molecular and Cellular Biology Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell Signaling and Environmental AdaptationHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China Centre of Excellence for Plant and microbial Science(CEPAMS) JIC‐CASBeijing 100101China

Cultivating high-yield wheat under limited water resources is crucial for sustainable agriculture in semiarid *** water scarcity,plants activate drought response signaling,yet the delicate balance between drought tolerance and development remains *** genome-wide association studies and transcriptome profiling,we identified a wheat atypical basic helix-loop-helix(b HLH)transcription factor(TF),Tab HLH27-A1,as a promising quantitative trait locus candidate for both relative root dry weight and spikelet number per spike in *** HLH27-A1/B1/D1 knockout reduced wheat drought tolerance,yield,and water use efficiency(WUE).Tab HLH27-A1 exhibited rapid induction with polyethylene glycol(PEG)treatment,gradually declining over *** activated stress response genes such as Ta CBL8-B1 and Ta CPI2-A1 while inhibiting root growth genes like Ta SH15-B1 and Ta WRKY70-B1 under short-term PEG *** distinct transcriptional regulation of Tab HLH27-A1 involved diverse interacting factors such as Ta ABI3-D1 and Tab *** variations of Tab HLH27-A1influence its transcriptional responses to drought stress,with Tab HLH27-A1^(Hap-II)associated with stronger drought tolerance,larger root system,more spikelets,and higher WUE in ***,the excellent Tab HLH27-A1^(Hap-II)was selected during the breeding process in China,and introgression of Tab HLH27-A1^(Hap-II)allele improved drought tolerance and grain yield,especially under water-limited *** study highlights Tab HLH27-A1's role in balancing root growth and drought tolerance,providing a genetic manipulation locus for enhancing WUE in wheat.

关键词： drought tolerance GWAS root growth wheat WUE

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

microbial diversity in the saline-alkali soil of a coastal Tamarix chinensis woodland at Bohai Bay, China

引用

Journal of Arid Land 2016年第2期8卷 284-292页

作者： LIU Wanqiu ZHANG Wei LIU Guangxiu ZHANG Yanhua ZHANG Gaosen Key Laboratory of Desert and Desertification Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of SciencesLanzhou 730000China Key Laboratory of Extreme Environmental microbial Resources and Engineering Gansu ProvinceLanzhou 730000China Ocean and Fishery bureau of Changyi Changyi 261300China

Soil salinization or alkalization is a form of soil desertification. Coastal saline-alkali soil represents a type of desert and a key system in the network of ecosystems at the continent-ocean interface. Tamarix chinensis is a drought-tolerant plant that is widely distributed in the coastal saline-alkali soil of Bohai Bay, China. In this study, we used 454 pyrosequencing techniques to investigate the characteristics and distribution of the microbial diversity in coastal saline-alkali soil of the T. chinensis woodland at Bohai Bay. A total of 20,315 sequences were obtained, representing 19 known bacterial phyla and a large proportion of unclassified bacteria at the phylum level. Proteobacteria, Acidobacteria and Actinobacteria were the predominant phyla. The coverage of T. chinensis affected the microbial composition. At the phylum level, the relative abundance of y-Proteobacteria and Bacteroidetes decreased whereas Actinobacteria increased with the increasing coverage of T. chinensis. At the genus level, the proportions of Steroidobacter, Lechevalieria, Gp3 and Gp4 decreased with the increase of the vegetation coverage whereas the proportion of Nocardioides increased. A cluster analysis showed that the existing T. chinensis changed the niches for the microorganisms in the coastal saline-alkali soil, which caused changes in the microbial community. The analysis also distinguished the microbial community structure of the marginal area from those of the dense area and sparse area. Furthermore, the results also indicated that the distance to the seashore line could also affect certain groups of soil bacteria in this coastal saline-alkali soil, such as the family Cryomorphaceae and class Flavobacteria, whose population decreased as the distance increased. In addition, the seawater and temperature could be the driving factors that affected the changes.

关键词： coastal saline-alkali soil Tamarix chinensis bacteria pyrosequencing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cryptosporidium parvum oocyst directed assembly of gold nanoparticles and graphene oxide

引用

Frontiers of Chemical Science and Engineering 2019年第3期13卷 608-615,F0004页

作者： Sona Jain Zhicheng Huang Brent R. Dixon Syed Sattar Juewen Liu Department of Chemistry Waterloo Institute for NanotechnologyUniversity of WaterlooOntarioN2L3G1Canada bureau of microbial hazards Food DirectorateHealth CanadaOntarioK1A 0K9Canada Faculty of Medicine University of OttawaOntarioK1H 8M5Canada

Understanding the interactions between inorganic nanomaterials and biological species is an important topic for surface and environmental chemistry. In this work, we systematically studied the oocysts of Cryptosporidium pa r v u m as a model protozoan parasite and its interaction with gold nanoparticles (AuNPs) and graphene oxide (GO). The as-prepared citrate-capped AuNPs adsorb strongly on the oocysts leading to a vivid color change. The adsorption of the AuNPs was confirmed by transmission electron microscopy. Heat treatment fully inhibited the color change, indicating a large change of surface chemistry of the oocysts that can be probed by the AuNPs. Adding proteases such as trypsin and proteinase K partially inhibited the color change. DNA-capped AuNPs, on the other hand, could not be adsorbed by the oocysts. GO was found to wrap around the oocysts forming a conformal shell reflecting the shape of the oocysts. Both citratecapped AuNPs and GO compromised the membrane integrity of the oocysts as indicated by the propidium iodide staining experiment, and they may be potentially used for inactivating the oocysts. This is the first example of using nanomaterials to probe the surface of the oocysts, and it suggests the possibility of using such organisms to template the assembly of nanomaterials.

关键词： nanomaterials toxicology water biosensors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

microbial production of cis,cis-muconic acid from aromatic compounds in engineered Pseudomonas

引用

Synthetic and Systems Biotechnology 2023年第3期8卷 536-545页

作者： Siyang He Weiwei Wang Weidong Wang Haiyang Hu Ping Xu Hongzhi Tang State Key Laboratory of microbial Metabolism and School of Life Sciences&BiotechnologyShanghai Jiao Tong UniversityShanghai200240People’s Republic of China College of Life Science Northeast Forestry UniversityHarbin150040China

Industrial expansion has led to environmental pollution by xenobiotic compounds like polycyclic aromatic hydrocarbons and monoaromatic *** *** broad metabolic potential for degrading aromatic *** objective of this study was to develop a“biological funneling”strategy based on genetic modification to convert complex aromatic compounds into cis,cis-muconate(ccMA)using Pseudomonas putida B6-2 and *** MPDS as *** engineered strains B6-2(B6-2ΔcatBΔsalC)and MPDS(MPDSΔsalC(pUCP18k-catA))thrived with biphenyl or naphthalene as the sole carbon source and produced ccMA,attaining molar conversions of 95.3%(ccMA/biphenyl)and 100%(ccMA/naphthalene).Under mixed substrates,B6-2ΔcatBΔsalC grew on biphenyl as a carbon source and transformed ccMA from non-growth substrates benzoate or salicylate to obtain higher product *** exogenous clusters like bedDC1C2AB and xylCMAB allowed B6-2 recombinant strains to convert benzene and toluene to *** mixed substrates,constructed consortia of engineered strains B6-2 and MPDS specialized in catabolism of biphenyl and naphthalene;the highest molar conversion rate of ccMA from mixed substrates was 85.2%when B6-2ΔcatBΔsalC was added after 24 h of MPDSΔsalC(pUCP18k-catA)incubation with biphenyl and *** study provides worthwhile insights into efficient production of ccMA from aromatic hydrocarbons by reusing complex pollutants.

关键词： Biodegradation Polycyclic aromatic hydrocarbons Biological funneling cis,cis-muconic acid Pseudomonas

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An intricate regulation of Wbl A controlling production of silent tylosin analogues and abolishment of expressible nikkomycin

引用

Science China(Life Sciences) 2023年第3期66卷 612-625页

作者： Yue Li Hanye Guan Jingjing Li Jihui Zhang Yanyan Wang Jine Li Huarong Tan State Key Laboratory of microbial Resources Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China

Genome sequencing has revealed that actinomycetes possess the potential to produce many more secondary metabolites than previously *** existing challenge is to devise efficient methods to activate these silent biosynthetic gene clusters(BGCs).In Streptomyces ansochromogenes,disruption of wbl A,a pleiotropic regulatory gene,activated the expression of cryptic tylosin analogues and abolished nikkomycin production *** pathway-specific regulatory genes tylR1 and tylR2 can also trigger the biosynthesis of silent tylosin analogues,in which TylR1 exerted its function via enhancing tylR2 *** one-hybrid system experiments unveiled that Wbl A directly inhibits the transcription of tylR1 and tylR2 to result in the silence of tylosin analogues ***,Wbl A can activate the nikkomycin production through up-regulating the transcription of pleiotropic regulatory gene adp *** interestingly,Adp A can activate san G(an activator gene in nikkomycin BGC)but repress wbl *** studies provide a valuable insight into the complex functions of pleiotropic regulators.

关键词： Streptomyces ansochromogenes silent gene cluster wblA tylosin analogues pleiotropic regulatory gene secondary metabolite biosynthesis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：