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Differential Responses of Soil Organic Carbon Fractions and Carbon Turnover Related Enzyme Activities to Wheat Straw Incorporation in Subtropical China

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Phyton-International Journal of Experimental Botany 2022年第1期91卷 169-183页

作者： Wei Dai Kaikai Fang Hui Gao Jun Wang petri penttinen Zhimin Sha Linkui Cao School of Agriculture and Biology Shanghai Jiaotong UniversityShanghai200240China Department of Microbiology College of ResourcesSichuan Agricultural UniversityChengdu611130China

Soil organic carbon(SOC)fractions and C turnover related enzyme activities are essential for nutrient *** is because they are regarded as important indicators of soil fertility and *** measured the effects of wheat straw incorporation on SOC fractions and C turnover related enzyme activities in a paddy field in subtropical *** samples were collected from 0-10 cm and 10-20 cm depths after rice *** total SOC concentrations were higher in the high rate of wheat straw incorporation treatment(NPKS2)than in the not fertilized control(CK)(P<0.05).The concentrations of labile C fractions[i.e.,water soluble organic C(WSOC),hot-water soluble organic C(HWSOC),microbial biomass C(MBC),and easily oxidizable C(EOC)],were higher in the moderate NPKS1 and NPKS2 treatments than in CK and the fertilized treatment without straw(NPK)(P<0.05).The geometric means of labile C(GMC)and C pool management index(CPMI)values were highest in NPKS2(P<0.05).The SOC concentrations correlated positively with the labile C fractions(P<0.05).Soil cellulase activity and the geometric mean of enzyme activities(GMea)were higher in NPKS2 than in CK in all soil layers(P<0.05),and the invertase activity was higher in NPKS2 than in CK in the 0-10 cm layer(P<0.05).Stepwise multiple linear regression indicated that the formation of the SOC,WSOC,HWSOC,MBC,and EOC was mostly enhanced by the cellulase and invertase activities(P<0.05).Therefore,the high rate of wheat straw incorporation may be recommended to increase soil C pool levels and soil fertility in subtropical paddy soils.

关键词： Wheat straw incorporation soil organic carbon fractions soil carbon turnover related enzymes paddy soil subtropical China

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若尔盖高原泥炭沼泽土嗜冷细菌系统发育分析

湿地科学 2014年第5期12卷 631-637页

作者：辜运富郑有坤 petri penttinen 王宪斌张小平四川农业大学资源环境学院微生物系成都温江611130 Department of Food and Environmental Sciences University of Helsinki

结合低温纯培养手段、核糖体DNA扩增片段限制性内切酶分析技术和克隆测序,研究了若尔盖高原泥炭沼泽土中可培养菌的多样性、系统发育和产低温酶特性。从3块采样地的土样中分离到47株表型各不相同的菌株。16S rRNA测序和系统发育分析结... 详细信息

结合低温纯培养手段、核糖体DNA扩增片段限制性内切酶分析技术和克隆测序,研究了若尔盖高原泥炭沼泽土中可培养菌的多样性、系统发育和产低温酶特性。从3块采样地的土样中分离到47株表型各不相同的菌株。16S rRNA测序和系统发育分析结果表明,若尔盖高原泥炭沼泽土的可培养低温菌高度相似于分离自极地、高山冻土和冰川等低温环境的嗜冷菌。47株菌分属于4个不同的群,包括高GC含量群、低GC含量群、Beta和Gama变形菌纲等。革兰氏阳性菌以节杆菌属(Arthrobacter)为主,而革兰氏阴性菌以假单胞菌属(Pseudomonas)为主。其他的细菌分属于微小杆菌属(Exiguobacterium)、芽孢八叠球菌属(Sporosarcina)、贪噬菌属(Variovorax)、紫色杆菌属(Janthinobacterium)和寡养单胞菌属(Stenotrophomonas)等不同的类群。产低温酶分析结果表明,在分离到的47株菌中,大多数菌株都能分泌纤维素降解酶,50%以上的菌株具有蛋白酶活性,而以节杆菌的胞外酶产生能力最强。若尔盖高原泥炭沼泽土中存在丰富的低温菌类群,在酶学生物技术上具有潜在应用价值。

关键词：泥炭沼泽土可培养嗜冷菌 16S rRNA基因多样性若尔盖高原

Chestnut tannin:New use,research and bioeconomy

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Journal of Bioresources and Bioproducts 2024年第3期9卷 246-252页

作者： Rosaria Ciriminna Francesco Meneguzzo Giovanna Li petri Cosimo Meneguzzo Giuseppe Angellotti Mario Pagliaro Istituto per lo Studio dei Materiali Nanostrutturati CNRvia U.La Malfa 15390146 PalermoItaly Istituto per la Bioeconomia CNRvia Madonna del Piano 1050019 Sesto Fiorentino(FI)Italy HyRes Srl via Salvator Rosa 1882100 BeneventoItaly

Chestnut tannin,extracted from the bark or wood of chestnut trees,possesses unique properties that make it valuable in various *** serves as a natural source of tannins,which are widely used in the production of leather,textiles,and wood *** research continues to explore its potential applications,chestnut tannin remains a promising resource with diverse industrial *** new use,research and bioeconomy aspects,this study provides a unified perspective on chestnut *** advanced applications will likely emerge shortly.

关键词： Tannin Chestnut Bioeconomy Tannin market Hydrolysable tannin

应用LH-PCR研究党参、麻黄和独一味内生细菌多样性

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应用生态学报 2013年第9期24卷 2511-2517页

作者：李小林江华明张波唐国庆 petri penttinen 曾珍郑林用张小平四川省农业科学院土壤肥料研究所成都610066 四川农业大学资源环境学院微生物系成都611130 四川职业技术学院建筑与环境工程系四川遂宁629000 四川农业大学动物科技学院四川雅安625014 Department of Foodand Environ-mental Sciences University of HelsinkiFI-00014HelsinkiFinland

通过直接提取药用植物样品的总DNA,采用长度多态片段PCR(length heterogeneity PCR,LH-PCR)技术研究四川省甘孜藏族自治州的党参、麻黄和独一味3种药用植物内生细菌多样性.结果表明:同种植物根、茎、叶的LH-PCR图谱相似度很高,条带丰富... 详细信息

通过直接提取药用植物样品的总DNA,采用长度多态片段PCR(length heterogeneity PCR,LH-PCR)技术研究四川省甘孜藏族自治州的党参、麻黄和独一味3种药用植物内生细菌多样性.结果表明:同种植物根、茎、叶的LH-PCR图谱相似度很高,条带丰富度差别不大;但不同植物样品之间的差异较大.党参的植物样品条带丰富度最大,麻黄次之,独一味最低.3种药用植物中474 bp长度的细菌是绝对的优势菌群.植物内生细菌多样性与土壤速效磷呈负相关,而与土壤pH值呈正相关.海拔和土壤总氮是影响植物样品内生细菌多样性分布的两个重要环境因子.LH-PCR所得的种群信息能较直观地反映不同植物样品间细菌多样性的差异.因此LH-PCR适用于分析药用植物内生菌多样性.

关键词：药用植物细菌多样性免培养 LH—PCR

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川楝内生放线菌多样性及抗菌活性筛选

微生物学通报 2016年第11期43卷 2374-2385页

作者：廖萍赵翀张瀚能刘茂柯 petri penttinen 张小平赵珂四川农业大学资源学院应用微生物学系四川成都611130 四川省农科院水稻高粱研究所四川泸州646000 芬兰赫尔辛基大学环境科学系赫尔辛基00014

【目的】探究药用植物川楝内生放线菌多样性,从中挖掘出新的放线菌菌株,发现新的潜在农业生防和医药先导化合物。【方法】从四川境内的资阳、遂宁以及重庆万州采集川楝的根、茎、叶、果、皮,采用纯培养方法,用4种培养基共分离获得148株... 详细信息

【目的】探究药用植物川楝内生放线菌多样性,从中挖掘出新的放线菌菌株,发现新的潜在农业生防和医药先导化合物。【方法】从四川境内的资阳、遂宁以及重庆万州采集川楝的根、茎、叶、果、皮,采用纯培养方法,用4种培养基共分离获得148株放线菌。通过形态学观察筛选出60株放线菌进行RFLP分析,选出代表菌株进行16S r RNA基因序列分析。以3株细菌和6株病原真菌作为指示菌株,检测初筛出的60株菌株的抗菌活性以及聚酮合酶(PKSⅠ、PKSⅡ)基因、非核糖体多肽合成酶(NRPS)基因和卤化酶(Halo)基因。【结果】基于16S r RNA-RFLP分析,60株放线菌被分成10簇,筛选出25株代表菌株分别属于7个属,包括Streptomyces、Micromonospora、Planotetraspora、Streptosporangium、Nocardiopsis、Prauseria、Microbispora,其中链霉菌占73.3%。供试的川楝内生放线菌对细菌、真菌有不同程度的抗菌活性;其中含有4类化合物合成基因的菌株占10%-55%。【结论】药用植物川楝内生放线菌具有丰富的多样性,且不同地区不同部位川楝组织中放线菌的种群存在差异;分离菌株广谱的抗菌活性证明,川楝内生放线菌在次生代谢产物合成方面具有巨大潜力,这为进一步的药物开发提供了丰富的菌种资源。

关键词：川楝内生放线菌多样性抗菌活性

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川楝内生放线菌多样性及群落结构研究

四川大学学报（自然科学版） 2016年第6期53卷 1391-1397页

作者：张瀚能张金羽刘茂柯李静廖萍赵翀赵珂 petri penttinen 四川农业大学资源学院微生物学系成都611130 四川省农科院水稻高粱研究所泸州646000 芬兰赫尔辛基大学环境科学系赫尔辛基00014

为深入挖掘川楝药材中的微生物资源,研究分析了川渝地区川楝内生放线菌的多样性和群落结构.运用PCR-DGGE技术对重庆万州、四川资阳、四川遂宁三个地区采集的川楝样品进行分析.DGGE图谱显示不同地区相同部位的样品以及相同地区的不同部... 详细信息

为深入挖掘川楝药材中的微生物资源,研究分析了川渝地区川楝内生放线菌的多样性和群落结构.运用PCR-DGGE技术对重庆万州、四川资阳、四川遂宁三个地区采集的川楝样品进行分析.DGGE图谱显示不同地区相同部位的样品以及相同地区的不同部位之间川楝内生放线菌都存在多样性差异,这种差异来自于地域环境和自身代谢水平的不同.不同部位总体上呈现树皮的多样性最丰富,而果实的多样性最差.对DGGE条带进行回收测序,共获得24条序列,归于11个属,链霉菌属(Streptomyces)为优势菌属占25%,其余的川楝内生放线菌归于为芽球菌属(Blastococcus)、气微菌属(Aeromicrobium)、中村氏菌属(Nakamurella)、分枝杆菌属(Mycobacterium)、棒杆菌属(Corynebacterium)、红球菌属(Rhodococcus)、冷杆菌属(Cryobacterium)、微杆菌属(Microbacterium)、诺卡氏菌属(Nocardioides)、利夫森氏菌属(Leifsonia)等稀有放线菌属,占总数的75%.结果表明分布于不同地域的川楝各组织内生放线菌多样性及群落结构存在差异,蕴藏着丰富的放线菌资源.

关键词：川楝内生放线菌 PCR—DGGE 群落结构

Activation of commercial Pt/C catalyst toward glucose electro-oxidation by irreversible Bi adsorption

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Journal of Energy Chemistry 2018年第5期27卷 1446-1452页

作者： petri Kanninen Tanja Kallio Department of Chemistry and Material Science Aalto University P.O. Box 16100 00076 Aalto. Finland Applied Electrochemistry KTH-Royal Institute of Technology Teknikringen 42 10044 Stockholm Sweden

The effect of irreversibly adsorbed Bi on commercial Pt/C catalyst toward glucose electro-oxidation re- action （GOR） in different electrolytes （acidic, neutral, alkaline） is studied. Bi is successfully deposited on Pt/C from Bi3＋ containing acidic solution from 0 to 90% coverage degree. The stability of the Bi layer in acid and alkaline corresponded to previous studies and started to dissolve at 0.7 V and 0.8 V versus re- versible hydrogen electrode （RIIE）, respectively. However, in neutral phosphate buffer the layer showed remarkable stability to at least 1.2V versus RHE. Bi modification at low （20%） and high （80%） coverage showed the highest increase in the activity of Pt/C toward GOR by a factor up to 7 due to the increased poisoning resistance of the modified catalyst. The effect of poisoning was especially reduced at high Bi coverage （80%）, which shows that adsorbate blocked by Bi through the third-body effect is effective. Finally, with or without Bi modification GOR on PtIC was most active in alkaline conditions.

关键词： Glucose electro-oxidation Platinum Bismuth Catalyst poisoning Renewable resources

Towards electrochemical hydrogen storage in liquid organic hydrogen carriers via proton-coupled electron transfers

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Journal of Energy Chemistry 2022年第10期31卷 292-300,I0007页

作者： Hamid Ghorbani Shiraz Mikhail Vagin Tero-petri Ruoko Viktor Gueskine Krzysztof Karon Mieczystaw tapkowski Tobias Abrahamsson Thomas Ederth Magnus Berggren Xavier Crispin Laboratory of Organic Electronics Department of Science and Technology(ITN)Linkoping UniversitySE-60174 NorrkopingSweden Smart Photonic Materials Facuty of Engineering and Natural SciencesTampere UniversiyPBox 541.Tampere Fl-33101Finland Silesian University of Technology.Faculty of Chemistry Deparment of Physical Chemistry and Technology of PolymersM.Strzody 9.44-100 GliwicePoland dDepartment of Physics Chemistry and Biology(IFM)Linkoping UniversiySE-58183 LinkopingSweden

Green hydrogen is identified as one of the prime clean energy carriers due to its high energy density and a zero emission of CO_(2).A possible solution for the transport of H_(2)in a safe and low-cost way is in the form of liquid organic hydrogen carriers(LOHCs).As an alternative to loading LOHC with H_(2)via a two-step procedure involving preliminary electrolytic production of H_(2)and subsequent chemical hydrogenation of the LOHC,we explore here the possibility of electrochemical hydrogen storage(EHS)via conversion of proton of a proton donor into a hydrogen atom involved in covalent bonds with the LOHC(R)via a protoncoupled electron transfer(PCET)reaction:2nH^(+)+2ne^(-)+Rox■n H_(2)^(0)*** chose 9-fluorenone/fluorenol(Fnone/Fnol)conversion as such a model PCET *** electrochemical activation of Fnone via two sequential electron transfers was monitored with in-situ and operando spectroscopies in absence and in presence of different alcohols as proton donors of different reactivity,which enabled us to both quantify and get the mechanistic insight on *** possibility of hydrogen extraction from the loaded carrier molecule was illustrated by chemical activation.

关键词： Proton-coupled electron transfer Electrochemical hydrogen storage Hydrogen bonding agent Anion-radical Comproportionation

Food contaminants and potential risk of diabetes development:A narrative review

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World Journal of Diabetes 2023年第6期14卷 705-723页

作者： Maja Milanovic Natasa Milosevic Natasa Milic Milica Medic Stojanoska Edward petri Jelena Markovic Filipovic Department of Pharmacy Faculty of MedicineUniversity of Novi SadNovi Sad 21000Serbia Faculty of Medicine Clinic for EndocrinologyDiabetes and Metabolic DiseasesUniversity Clinical Center of VojvodinaUniversity of Novi SadNovi Sad 21000Serbia Department of Biology and Ecology Faculty of SciencesUniversity of Novi SadNovi Sad 21000Serbia

The number of people diagnosed with diabetes continues to increase,especially among younger *** from genetic predisposition and lifestyle,there is increasing scientific and public concern that environmental agents may also contribute to *** contamination by chemical substances that originate from packaging materials,or are the result of chemical reactions during food processing,is generally recognized as a worldwide problem with potential health ***,bisphenol A(BPA)and acrylamide(AA)have been the focus of attention in recent years,due to the numerous adverse health effects associated with their *** paper summarizes the available data about the association between phthalates,BPA and AA exposure and *** their mechanism of action has not been fully clarified,in vitro,in vivo and epidemiological studies have made significant progress toward identifying the potential roles of phthalates,BPA and AA in diabetes development and *** chemicals interfere with multiple signaling pathways involved in glucose and lipid homeostasis and can aggravate the symptoms of *** concerning are the effects of exposure during early stages and the gestational ***-designed prospective studies are needed in order to better establish prevention strategies against the harmful effects of these food contaminants.

关键词： Acrylamide Bisphenol A Phthalates Endocrine disrupting chemicals β-cell Diabetes