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Mycorrhizal fungi mitigate nitrogen losses of an experimental grassland by facilitating plant uptake and soil microbial immobilization

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Pedosphere 2024年第2期34卷 399-410页

作者： Yangyang JIA Marcel g.A.van der HEIJDEN Alain Y.VALZANO-HELD Markus JOCHER Florian WALder Postdoctoral Mobile Station of Ecology College of Ecology and EnvironmentXinjiang UniversityÜrümqi 830046China Research group Plant-Soil Interactions AgroscopeZürich 8046Switzerland Research group Climate and Agriculture AgroscopeZürich 8046Switzerland Department of Plant and Microbial Biology University of ZürichZürich 8008Switzerland Research group Soil Quality and Soil Use AgroscopeZürich 8046Switzerland

Nitrogen(N)is one of the most limited nutrients of terrestrial ecosystems,whose losses are prevented in tightly coupled cycles in finely tuned *** change-induced N enrichment through atmospheric deposition and application of vast amounts of fertilizer are now challenging the terrestrial N *** mycorrhizal fungi(AMF)are known drivers of plant-soil nutrient fluxes,but a comprehensive assessment of AMF involvement in N cycling under global change is still ***,we simulated N enrichment by fertilization(low/high)in experimental grassland microcosms under greenhouse conditions in the presence or absence of AMF and continuously monitored different N pathways over nine *** found that high N enrichment by fertilization decreased the relative abundance of legumes and the plant species dominating the plant community changed from grasses to forbs in the presence of AMF,based on aboveground *** presence of AMF always maintained plant N:phosphorus(P)ratios between 14 and 16,no matter how the soil N availability *** in plant N:P ratios due to the increased plant N and P uptake might thus be a primary pathway of AMF altering plant community ***,we constructed a comprehensive picture of AMF’s role in N cycling,highlighting that AMF reduced N losses primarily by mitigating N leaching,while N_(2)O emissions played a marginal *** mycorrhizal fungi reduced N_(2)O emissions directly through the promotion of N_(2)O-consuming *** underlying mechanism for reducing N leaching is mainly the AMF-mediated improved nutrient uptake and AMF-associated microbial *** results indicate that synergies between AMF and other soil microorganisms cannot be ignored in N cycling and that the integral role of AMF in N cycling terrestrial ecosystems can buffer the upcoming global changes.

关键词： N cycling N enrichment N uptake N:P ratio plant community structure symbiotic soil fungi

Perspectives for delivery of therapeutics by extravasation of biodegradable microspheres in the brain

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Neural Regeneration Research 2024年第5期19卷 969-970页

作者： Anne-Eva van der Wijk Ed vanBavel Amsterdam UMC location University of Amsterdam Department of Biomedical Engineering and PhysicsAmsterdamThe Netherlands Amsterdam Neuroscience Neurovascular Disorders ProgramAmsterdamThe Netherlands Amsterdam Cardiovascular Sciences Microcirculation ProgramAmsterdamThe Netherlands

Development of therapeutics for brain diseases has remained challenging,in particular due to the difficulty of passing the blood-brain *** a result,the current arsenal of therapeutics targeting the brain is limited to small,lipid-soluble drugs and there is a lack of options for treating neuroblastomas,Alzheimer’s disease,and many other devastating *** the advances in strategies for crossing the blood-brain barrier such as the use of nanoparticles(Hersh et al.,2022;Duan et al.,2023),such delivery systems have not yet reached clinical ***,novel platforms for the transport of therapeutics across the blood-brain barrier remain highly *** specifically holds for large molecules such as monoclonal antibodies and recombinant proteins,as well as nucleotide-based therapeutics and cell *** efforts in this field are increasing exponentially,with thousands of publications in the last few years.

关键词： therapeutics holds spite

Mycorrhizae and sustainable soil solutions

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Pedosphere 2024年第2期34卷 267-268页

作者： Junli HU Fayuan WANg Junling ZHANg Liangdong gUO Marcel g.A.van der HEIJDEN State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042(China) National Academy of Agriculture green Development State Key Laboratory of Nutrient Use and ManagementCollege of Resources and Environment SciencesChina Agricultural UniversityBeijing 100193(China) State Key Laboratory of Microbial Diversity and Innovative Utilization Institute of MicrobiologyChinese Academy of SciencesBeijing 100101(China) Department of Agroecology and Environment Plant-Soil InteractionsAgroscopeZürich 8046(Switzerland) Department of Plant and Microbial Biology University of ZürichZürich 8057(Switzerland)

Mycorrhizae are the most widespread symbioses in nature,involving plants and specialized soil *** recent years,mycorrhizal research has made remarkable *** in genomics and other modern techniques have opened new windo... 详细信息

关键词： soil specialized sustainable

New insights into protein–polysaccharide complex coacervation:Dynamics,molecular parameters,and applications

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Aggregate 2024年第1期5卷 148-166页

作者： Jiabao Zheng Paul van der Meeren Weizheng Sun School of Food Science and Engineering South China University of TechnologyGuangzhouChina Department of green Chemistry and Technology Faculty of Bioscience EngineeringGhent UniversityGhentBelgium Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health(111 Center) GuangzhouChina

For more than a decade,the discovery of liquid–liquid phase separation within living organisms has prompted colloid scientists to understand the connection between coacervate functionality,phase behavior,and dynamics at a multidisciplinary *** the protein–polysaccharide was the first system in which the coacervation phenomenon was discovered and is widely used in food systems,the phase state and relaxation dynamics of protein–polysaccharide complex coacervates(PPCC)have rarely been discussed ***,this review aims to unravel the relationship between PPCC dynamics,thermodynamics,molecular architecture,applications,and phase states in past *** ahead,solving the way molecular architecture spreads to macro-functionality,that is,establishing the relationship between molecular architecture–dynamics–application,will catalyze novel advancements in PPCC research within the field of foods and biomaterials.

关键词： dynamics encapsulation liquid coacervate protein-polysaccharide complex coacervation solid precipitate

Effects of pyrethroid and organophosphate insecticides on reared black soldier fly larvae(Hermetia illucens)

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Insect Science 2024年第3期31卷 817-834页

作者： Nathan Meijer Lisa Zoet Theo de Rijk Paul Zomer Deborah Rjkers H.J.van der Fels-Klerx Joop J.A.van Loon Wageningen Food Safety Research(WFSR) Part of Wageningen University and ResearchWageningenThe Netherlands Bestico B.V. Industrieweg 6Berkel en RodenrjsThe Netherlands Plant Sciences group Laboratory of EntomologyWageningen UniversityWageningenTheNetherlands

Black soldier fly larvae(Hermetia illucens)receive growing interest as a potential alternative animal feed *** insects may be exposed to insecticide residues in the rearing *** study aimed to investigate the effects of six different pyrethroid and organophosphate insecticides on this insect species'*** toxicity of two"model"substances for each of these classes(cypermethrin;pirimiphosmethyl)was quantified,with and without the synergist piperonyl butoxide(PBO).Critical effect doses corresponding to 10%yield(CED10)for cypermethrin(0.4 mg/kg)and pirimiphos-methyl(4.8 mg/kg)were *** addition of PBO to cypermethrin enhanced its relative potency with a factor *** data were compared against the relative toxicity of two analogue substances in each class(permethrin,deltamethrin;chlorpyrifosmethyl,malathion).Results suggest that exposure to concentrations complying with legal limits can cause significant reductions in *** to multiple substances at lower concentrations resulted in negative additive and synergistic *** the tested substances,deltamethrin was most toxic,causing 94%yield at 0.5 mg/*** results suggested that transfer of tested substances to the larval biomass was substance-and concentration-specific,but appeared to be correlated to reduced yields and the presence of *** of organophosphates was overall low(ged from 8%to 75%for *** to very low limits in insect biomass(~0.01 mg/kg),high transfer may result in *** is recommended that rearing companies implement lower contractual thresholds,and that policymakers consider adjusting legally allowed maximum residue levels in insect feed.

关键词： feed insects pesticides rearing substrate

A tribo-chemical view on astringency of plant-based food substances

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Friction 2024年第7期12卷 1392-1407页

作者： Samuel S.gAMANIEL Paloma S.DUEÑAS ROBLES Hans TROMP Els H.A.de HOOg Sissi de BEER Emile van der HEIDE Laboratory for Surface Technology and Tribology Faculty of Engineering TechnologyUniversity of TwenteEnschede 7522 LWthe Netherlands NIZO Food Research B.V. Ede6710 BAthe Netherlands Department of Molecules and Materials MESA+Institute for Nanotechnology University of TwenteEnschede 7500 AEthe Netherlands

Consumption of plant-based food products having high composition of polyphenols leads to the sensation of *** sliding oral surfaces,friction is an essential property during the oral perception of roughness and dryness which are attributes associated with *** factors including the chemical composition of interacting layers,structure and operation of interfaces have an effect on the astringency development *** manner of interactions occurring at oral interfaces suggest there is a system dependence of astringency and highlights the importance of adopting a tribosystems *** measurement techniques have shown an existing relationship between salivary protein-polyphenol interaction and an astringent ***,the tribo-chemistry involved in this multifaceted sensation remains largely unexplored in a comprehensive *** this review the underlying tribo-chemical processes useful in understanding the mechanism of astringency are highlighted and discussed considering current techniques employed to investigate astringency *** of lubrication on oral surfaces owing to the tribo-chemical interactions involving saliva and astringent plant proteins requires subsequent deformations of oral tissues which are significant enough to induce strains at mechanoreceptor locations,leading to the sensation of *** is proposed that micro-scale contact modelling on the interaction of food particles/aggregates,boundary layers and oral surfaces shows potential in addressing the knowledge gap between tribo-chemical measurement techniques and panel tests,making it possible to attain a predictor for astringency.

关键词： oral lubrication astringency tribo-chemistry tribology

Quantifying source-sink relationships in leaf-color modified rice genotypes during grain filling

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Journal of Integrative Agriculture 2024年第9期23卷 2923-2940页

作者： Zhenxiang Zhou Paul CStruik Junfei gu Peter E.L.van der Putten Zhiqin Wang Jianchang Yang Xinyou Yin Centre for Crop Systems Analysis Department of Plant SciencesWageningen University&ResearchWageningen 6700 AKThe Netherlands College of Agriculture Yangzhou UniversityYangzhou 225009China

Leaf-color modification can affect canopy photosynthesis,with potential effects on rice yield and yield *** source-sink relationships through crop management is often used to improve crop *** study investigated whether and how modifying leaf color alters source-sink relationships and whether current crop cultivation practices remain applicable for leaf-color modified *** collected data of total biomass and nitrogen(N)accumulation in rice genotypes of four genetic backgrounds and their leaf-color modified variants(greener or yellower)were analyzed,using a recently established modelling method to quantify the source-sink(im)balance during grain *** all leaf-color variants,only one yellower-leaf variant showed a higher source capacity than its normal *** was associated with greater post-flowering N-uptake that prolonged the functional leaf-N duration,and this greater post-flowering N-uptake was possible because of reduced pre-flowering N-uptake.A density experiment showed that current management practices(insufficient planting density accompanied by abundant N application)are unsuitable for the yellower-leaf genotype,ultimately limiting its yield ***-color modification affects source-sink relationships by regulating the N trade-off between pre-and post-flowering uptake,as well as N translocation between source and sink *** best exploit leaf-color modification for improving crop productivity,adjustments of crop management practices are required.

关键词： source-sink relationship biomass nitrogen Oryza sativa leaf-color modification

Positive health:An integrated quantitative approach in patients with chronic gastrointestinal and hepato-pancreatico-biliary disorders

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World Journal of gastroenterology 2024年第28期30卷 3418-3427页

作者： Anja H W M Lemlijn-Slenter Karolina AP Wijnands gijs van der Hamsvoort Luuk P van Iperen Nico Wolter Angelique E de Rijk Ad AM Masclee Department of Social Medicine Faculty of HealthMedicine and Life sciencesCare and Public Health Research Institute Maastricht UniversityMaastricht 6200 MDLimburgNetherlands Division of gastroenterology and Hepatology Department of Internal MedicineSchool of Nutrition and Translational Research in MetabolismMaastricht 6200 MDLimburgNetherlands Social Medical Affairs Employee Insurance Agency(UWV)Heerlen 6400 ACLimburgNetherlands Department of Research Academic Knowledge Center Work and Health South-East Netherlands(AKAG-ZON)Heerlen 6400 ACLimburgNetherlands

BACKgROUND The concept of positive health(PH)supports an integrated approach for patients by taking into account six dimensions of *** approach is especially relevant for patients with chronic *** gastrointestinal and hepatopancreatico-biliary(gI-HPB)disorders are among the top-6 of the most prevalent chronically affected organ *** impact of chronic gI-HPB disorders on individuals may be disproportionally high because:(1)The affected organ system frequently contributes to a malnourished state;and(2)persons with chronic gIHPB disorders are often younger than persons with chronic diseases in other organ *** To describe and quantify the dimensions of PH in patients with chronic gI-HPB *** Prospective,observational questionnaire study performed between 2019 and 2021 in 235 patients with a chronic gIHPB disorder attending the Outpatient Department of the Maastricht University Medical *** questionnaires and data from patient files were used to quantify the six dimensions of *** consistency was tested with McDonald’s ***-order Pearson correlations and t-tests were used to assess associations and differences.A P valuedered *** The gI-HPB patients scored significantly worse in all dimensions of PH compared to control data or norm scores from the general *** quality of life,participation and daily functioning,gI-HPB patients scored in the same range as patients with chronic disorders in other organ systems,but depressive symptoms(in 35%)and malnutrition(in 45%)were more frequent in patients with chronic gI-HPB *** scores between the six dimensions were only very weak to weak,forcing us to quantify each domain *** All six dimensions of PH are impaired in the gI-HPB *** and depressive symptoms are more prevalent compared to patients with chronic disorders in other organ systems.

关键词： Positive health Chronic gut disorders gastrointestinal disorders Hepato-pancreatico-biliary disorders Integrated care

Inbreeding and genetic load in a pair of sibling grouse species:Tetrastes sewersowi and ***

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Avian Research 2024年第2期15卷 265-270页

作者： Kai Song Tom van der Valk Bin gao Peter Halvarsson Yun Fang Wendong Xie Siegfried Klaus Zhiming Han Yue-Hua Sun Jacob Hoglund Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing100101China Animal Ecology Department of Ecology and GeneticsUppsala UniversityNorbyvagen 18DUppsala75236Sweden Department of Cell and Molecular Biology Uppsala75273Sweden Unit of Parasitology Department of Biomedicine and Veterinary Public HealthSwedish University of Agricultural SciencesPO Box 7036Uppsala75007Sweden Lindenhohe 5 JenaD-07749Germany The State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing100101China

genetic load and inbreeding are recognized as important factors to be considered in conservation *** levels of both can increase the risk of population extinction by negatively impacting fitness-related characters in many species of plants and animals,including humans(inbreeding depression).genomic tech-niques are increasingly used in measuring and understanding genetic load and inbreeding and their importance in evolution and *** used whole genome resequencing data from two sibling grouse species in subarctic Eurasia to quantify *** found a large range of inbreeding measured as FROH(fraction of runs of homozygosity)in individuals from different populations of Chinese grouse(Tetrastes sewerzowi)and Hazel grouse(***).FROH estimated from genome-wide runs of homozygosity(ROH)ranged from 0.02 to 0.24 among Chinese grouse populations and from 0.01 to 0.44 in Hazel *** from a population of Chinese grouse residing in the Qilian mountains and from the European populations of Hazel grouse(including samples from Sweden,germany and Northeast Poland)were the most inbred(FROH ranged from 0.10 to 0.23 and 0.11 to 0.44,respectively).These levels are comparable to other highly inbred populations of *** grouse from northern China and Chinese grouse residing in the Qinghai-Tibetan Plateau showed relatively lower inbreeding *** of the ratio between deleterious missense mutations and synonymous mutations revealed higher levels in Chinese grouse as compared to Hazel *** results are possibly explained by higher fixation rates,mutational melt down,in the range-restricted Chinese grouse compared to the wide-ranging Hazel ***,when we compared the relatively more severe class of loss-of-function muta-tions,Hazel grouse had slightly higher levels than Chinese grouse,a result which may indicate that purifying selection(purging)has been more efficient in Chinese grouse on this class of mutations.

关键词： genetic load Inbreeding Purifying selection Qinghai-Tibetan Plateau ROH Tetrastes