检索结果-南通市图书馆

Dairy manure as a potential source of crop nutrients and environmental contaminants

Journal of Environmental Sciences 2021年第2期33卷 117-130页

作者： Danika Hill Matthew J.Morra Thibault Stalder Sven Jechalke Eva Top Anne T.Pollard Inna Popova Department of Soil&water Systems University of IdahoID 83844-2340USA Department of Biology University of IdahoID 83844-3051USA Justus Liebig University Giessen Institute for Phytopathology35392 GieJenGermany

Although animal manure is applied to agricultural fields for its nutrient value,it may also contain potential *** determine the variability in such contaminants as well as in valuable nutrients,nine uncomposted manure samples from Idaho dairies collected during 2.5 years were analyzed for macro-and micro-nutrients,hormones,phytoestrogens,antibiotics,veterinary drugs,antibiotic resistance genes,and genetic elements involved in the spread of antibiotic *** N ranged from 6.8 to 30.7(C:N of 10 to 21),P from 2.4 to 9.0,and K from 10.2 to 47.7 g/kg ***(103-348 mg/kg)was more abundant than Cu(56-127 mg/kg)in all *** were the most prevalent contaminants detected,with concentrations fluctuating over time,reflecting animal *** is the first study to document the presence of flunixin,a non-steroidal anti-inflammatory drug,in solid stacked manure from regular dairy *** was the most frequently detected *** and sulfonamides were regularly *** also investigated the relative abundance of several types of plasmids involved in the spread of antibiotic resistance in clinical *** belonging to the Inc I,Inc P,and Inc Q1 incompatibility groups were found in almost all manure *** Q1 plasmids,class 1 integrons,and sulfonamide resistance genes were the most widespread and abundant genetic element surveyed,emphasizing their potential role in the spread of antibiotic *** benefits associated with amending agricultural soils with dairy manure must be carefully weighed against the potential negative consequences of any manure contaminants.

关键词： Manure Antibiotics Hormones Veterinary drugs Emerging contaminants

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

A Post-domestication Mutation, Dt2, Triggers Systemic Modification of Divergent and Convergent Pathways Modulating Multiple Agronomic Traits in Soybean

引用

Molecular Plant 2019年第10期12卷 1366-1382页

作者： Dajian Zhang Xutong Wang Shuo Li Chaofan Wang Michael JGosney Michael VMickelbart Jianxin Ma Department of Agronomy Purdue UniversityWest LafayetteIN 47907USA College of Agronomy Shandong Agricultural UniversityTai'anShandong 271018China School of Life Sciences Shandong UniversityQingdaoShandong 266237China Department of Botany and Plant Pathology Purdue UniversityWest LafayetteIN 47907USA Center for Plant Biology Purdue UniversityWest LafayetteIN 47907USA

The semi-determinate stem growth habit in leguminous crops,similar to the“green revolution”semi-dwarf trait in cereals,is a key plant architecture trait that affects several other traits determining grain *** soybean semi-determinacy is modulated by a post-domestication gain-of-function mutation in the gene,Dt2,which encodes an MADS-box transcription ***,its role in systemic modification of stem growth and other traits is *** this study,we show that Dt2 functions not only as a direct repressor of Dt1,which prevents terminal flowering,but also as a direct activator of putative floral integrator/identity genes including GmSOC1,GmAP1,and GmFUL,which likely promote *** also demonstrate that Dt2 functions as a direct repressor of the putative drought-responsive transcription factor gene GmDREB1D,and as a direct activator of GmSPCH and GmGRP7,which are potentially associated with asymmetric division of young epidermal cells and stomatal opening,respectively,and may affect the plant's water-use efficiency(WUE).Intriguingly,Dt2 was found to be a direct activator or repressor of the precursors of eight microRNAs targeting genes potentially associated with meristem maintenance,flowering time,stomatal density,WUE,and/or stress *** study thus reveals the molecular basis of pleiotropy associated with plant productivity,adaptability,and environmental resilience.

关键词： abiotic stress agronomic traits convergent pathways stem growth habit pleiotropy soybean

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

Carotenoid Metabolism in Plants： The Role ol Plastids

引用

Molecular Plant 2018年第1期11卷 58-74页

作者： Tianhu Sun Hui Yuan Hongbo Cao Mohammad Yazdani Yaakov Tadmor Li Li Robert W. Holley Center for agriculture and Health USDA-ARS Cornell University Ithaca NY 14853 USA plant Breeding and Genetics Section School of Integrative Plant Science Cornell University Ithaca NY 14853 USA College of Horticulture Hebei Agricultural University Baoding Hebei 071001 China Plant Science Institute Israeli Agricultural Research Organization Newe Yaar Research Center P.O. Box 1021 Ramat Yishai 30095 Israel

Carotenoids are indispensable to plants and critical in human diets. Plastids are the organelles for carotenoid biosynthesis and storage in plant cells. They exist in various types, which include proplastids, etioplasts, chloroplasts, amyloplasts, and chromoplasts. These plastids have dramatic differences in their capacity to synthesize and sequester carotenoids. Clearly, plastids play a central role in governing carotenogenic activity, carotenoid stability, and pigment diversity. Understanding of carotenoid metabolism and accumulation in various plastids expands our view on the multifaceted regulation of carotenogenesis and facilitates our efforts toward developing nutrient-enriched food crops. In this review, we provide a comprehensive overview of the impact of various types of plastids on carotenoid biosynthesis and accumulation, and discuss recent advances in our understanding of the regulatory control of carotenogenesis and metabolic engineering of carotenoids in light of plastid types in plants.

关键词： carotenoid plastid regulation metabolism metabolic engineering

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

Transporters Contributing to Iron Trafficking in Plants

引用

Molecular Plant 2011年第3期4卷 464-476页

作者： Sarah S. Conte Elsbeth L. Walker University of Massachusetts Amherst Biology Department 611 No. Pleasant St Amherst MA 01002 USA

This review will discuss recent progress in understanding the many roles of transporters in the whole-plant physiological processes that maintain iron （Fe） homeostasis. These processes include uptake from the soil via roots, control of transport from roots to above-ground parts of the plant, unloading of Fe from the xylem in above-ground parts, loading of Fe into mitochondria and plastids, transport of Fe to reproductive parts of the plant, and Fe mobilization during seed germination. In addition, we will discuss the mechanisms that plants use to cope with an apparently unintended conse- quence of Fe acquisition： the uptake of toxic heavy metals via Fe transporters. Rapid progress has been made in under- standing the transport processes involved in each of these areas in the last 5 years and this review will focus on this recent progress. We will also highlight the key questions regarding transport steps that remain to be elucidated.

关键词： Nutrient and metal transport transporters gene regulation iron nicotianamine phytosiderophores.

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

Pre-implantation exogenous progesterone and pregnancy in *** on fetalplacental development and nutrient transporters in late pregnancy

引用

Journal of Animal Science and Biotechnology 2021年第3期12卷 952-971页

作者： Katherine M.Halloran Emily C.Hoskins Claire Stenhouse Robyn M.Moses Kathrin A.Dunlap M.Carey Satterfield Heewon Seo Gregory A.Johnson Guoyao Wu Fuller W.Bazer Department of Animal Science Texas A&M UniversityCollege StationTX 77843-2471USA Department of Veterinary Integrative Biosciences Texas A&M UniversityCollege StationTX 77843USA

Background:Administration of progesterone(P4)to ewes during the first 9 to 12 days of pregnancy accelerates blastocyst development by day 12 of pregnancy,likely due to P4-induced up-regulation of key genes in uterine epithelia responsible for secretion and transport of components of histotroph into the uterine *** study determined if acceleration of blastocyst development induced by exogenous P4 during the pre-implantation period affects fetal-placental development on day 125 of *** ewes(n=35)were mated to fertile rams and assigned randomly to receive daily intramuscular injections of either corn oil vehicle(CO,n=18)or 25 mg progesterone in CO(P4,n=17)for the first 8 days of *** ewes were hysterectomized on day 125 of pregnancy and:1)fetal and placental weights and measurements were recorded;2)endometrial and placental tissues were analyzed for the expression of candidate mRNAs involved in nutrient transport and arginine metabolism;and 3)maternal plasma,fetal plasma,allantoic fluid,and amniotic fluid were analyzed for amino acids,agmatine,polyamines,glucose,and ***:Treatment of ewes with exogenous P4 did not alter fetal or placental growth,but increased amounts of aspartate and arginine in allantoic fluid and amniotic fluid,*** that received exogenous P4 had greater expression of mRNAs for SLC7A1,SLC7A2,SLC2A1,AGMAT,and ODC1 in endometria,as well as SLC1A4,SLC2A5,SLC2A8 and ODC1 in *** addition,AZIN2 protein was immunolocalized to uterine luminal and glandular epithelia in P4-treated ewes,whereas AZIN2 localized only to uterine luminal epithelia in CO-treated ***:This study revealed that exogenous P4 administered in early pregnancy influenced expression of selected genes for nutrient transporters and the expression of a protein involved in polyamine synthesis on day 125 of pregnancy,suggesting a‘programming’effect of P4 on gene expression that affected the composition of nutrients in f

关键词： Amino acids Endometrium Fructose Gene expression Glucose Placenta Polyamines Progesterone

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

Dietary glycine supplementation enhances syntheses of creatine and glutathione by tissues of hybrid striped bass(Morone saxatilis ♀ × Morone chrysops ♂) fed soybean meal-based diets

引用

Journal of Animal Science and Biotechnology 2024年第5期15卷 1996-2011页

作者： Wenliang He Xinyu Li Guoyao Wu Department of Animal Science Texas A&M UniversityCollege StationTX 77843USA

Background We recently reported that supplementing glycine to soybean meal-based diets is necessary for the optimum growth of 5-to 40-g(Phase-I)and 110-to 240-g(Phase-II)hybrid striped bass(HSB),as well as their intestinal *** glycine serves as an essential substrate for syntheses of creatine and glutathione(GSH)in mammals(e.g.,pigs),little is known about these metabolic pathways or their nutritional regulation in *** study tested the hypothesis that glycine supplementation enhances the activities of creatine-and GSH-forming enzymes as well as creatine and GSH availabilities in tissues of hybrid striped bass(HSB;Morone saxatilis♀×Morone chrysops♂).Methods Phase-I and Phase-II HSB were fed a soybean meal-based diet supplemented with 0%,1%,or 2%glycine for 8 *** the end of the 56-d feeding,tissues(liver,intestine,skeletal muscle,kidneys,and pancreas)were collected for biochemical *** In contrast to terrestrial mammals and birds,creatine synthesis occurred primarily in skeletal muscle from all *** liver was most active in GSH synthesis among the HSB tissues *** Phase-I HSB,supplementation with 1%or 2%glycine increased(P0.05)in these variables between the 1%and 2%glycine *** Phase-II HSB,supplementation with 1%and 2%glycine increased(P<0.05)concentrations of creatine and GSH in the muscle(15%–27%)and liver(11%–20%)in a dose-dependent manner,with reduced ratios of hepatic GSSG/GSH in the 1%or 2%glycine *** all HSB,supplementation with 1%and 2%glycine dose-dependently increased(P<0.05)activities of intramuscular arginine:glycine amidinotransferase(22%–41%)and hepaticγ-glutamylcysteine synthetase(17%–37%),with elevated activities of intramuscular guanidinoacetate methyltransferase and hepatic GSH synthetase a

关键词： Amino acids Creatine Fish Glutathione Glycine Nutrition

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

Phosphate,calcium,and vitamin D signaling,transport,and metabolism in the endometria of cyclic ewes

引用

Journal of Animal Science and Biotechnology 2023年第3期14卷 1012-1025页

作者： Claire Stenhouse Makenzie G.Newton Katherine M.Halloran Robyn M.Moses Nirvay Sah Larry J.Suva Fuller W.Bazer Departments of Animal Science Texas A&M UniversityKleberg CenterTX 77843‑2471 College StationUSA Veterinary Physiology and Pharmacology Texas A&M UniversityTX 77843 College StationUSA

Background Recent evidence suggests important roles for progesterone(P4)and interferon tau in the regulation of calcium,phosphate,and vitamin D signaling in the uteri of pregnant ***,the effects of P4 and estradiol(E2),with respect to the expression of their receptors PGR and ESR1,respectively,in uterine epithelia on mineral signaling during the estrous cycle has not been *** cycles of mature Suffolk ewes were synchronized,prostaglandin F2αwas administered,and ewes were observed for estrus(designated as Day 0)in the presence of vasectomized *** Days 1,9,or 14 of the estrous cycle,hysterectomies were *** 25-hydroxyvitamin D was more abundant in plasma from ewes on Day 14 than Day 1(P<0.05).Expression of fibroblast growth factor receptor 2(FGFR2),a disintegrin and metalloprotease 17(ADAM17),and parathyroid hormone-related protein(PTHrP)mRNAs was greater in endometria on Day 9 compared to Days 1 and 14(P<0.01).Similarly,expression of transient receptor potential cation channel subfamily V member 6(TRPV6)mRNA was greater in endometria on Day 9 than Day 1(P<0.05).ATPase plasma membrane Ca^(2+)transporting 4(ATP2B4)and S100 calcium binding protein G(S100G)mRNA expression was greater in endometria on Day 14 than on Days 1 and 9(P<0.01).In contrast,endometrial expression of vitamin D receptor(VDR)mRNA was lower on Days 9 and 14 than Day 1(P<0.01).Expression of klotho(KL)(P<0.05)and cytochrome P450 family 24 subfamily A member 1(CYP24)(P<0.01)mRNAs was lower on Day 14 than Days 1 and ***17,FGF23,CYP2R1,CYP27B1,KL,and VDR proteins immunolocalized to the uterine myometrium,blood vessels,and uterine luminal(LE),superficial glandular(sGE),and glandular(GE)epithelia.S100A9 protein was weakly expressed in the uterine myometrium,LE,sGE,and *** of CYP2R1 and KL proteins in uterine LE and sGE was less on Day 1 than on Days 9 and *** contrast,S100G protein was expressed exclusively by GE,and immunoreactive S100G protein

关键词： Calcium Endometrium Ovine Phosphate Vitamin D

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

Dietary supplementation with 0.4%L-arginine between days 14 and 30 of gestation enhances NO and polyamine syntheses and water transport in porcine placentae

引用

Journal of Animal Science and Biotechnology 2023年第2期14卷 627-639页

作者： Cassandra M.Herring Fuller W.Bazer Gregory A.Johnson Heewon Seo Shengdi Hu Mohammed Elmetwally Wenliang He Daniel B.Long Guoyao Wu Department of Animal Science Texas A&M UniversityCollege StationTX 77843USA Department of Veterinary Integrative Biosciences Texas A&M UniversityCollege StationTX 77843USA.

Background:Most embryonic loss in pigs occurs before d 30 of *** supplementation with L-arginine(Arg) during early gestation can enhance the survival and development of conceptuses(embryo/fetus and its extraembryonic membranes) in ***,the underlying mechanisms remain largely ***:Between d 14 and 30 of gestation,each gilt was fed daily 2 kg of a corn-and soybean-meal based diet(12% crude protein) supplemented with either 0.4% Arg(as Arg-HCl) or an isonitrogenous amount of L-alanine(Control).There were 10 gilts per treatment *** d 30 of gestation,gilts were fed either Arg-HCl or L-alanine 30 min before they were hysterectomized,followed by the collection of placentae,embryos,fetal membranes,and fetal *** and allantoic fluids were analyzed for nitrite and nitrate [NOx;stable oxidation products of nitric oxide(NO)],polyamines,and amino *** were analyzed for syntheses of NO and polyamines,water and amino acid transport,concentrations of amino acid-related metabolites,and the expression of angiogenic factors and aquaporins(AQPs).Results:Compared to the control group,Arg supplementation increased(P < 0.05) the number of viable fetuses by 1.9 per litter,the number and diameter of placental blood vessels(+ 25.9% and + 17.0% respectively),embryonic survival(+ 18.5%),total placental weight(+ 36.5%),the total weight of viable fetuses(+ 33.5%),fetal crown-to-rump length(+ 4.7%),and total allantoic and amniotic fluid volumes(+ 44.6% and + 75.5% respectively).Compared to control gilts,Arg supplementation increased(P < 0.05) placental activities of GTP cyclohydrolase-1(+ 33.1%) and ornithine decarboxylase(+ 29.3%);placental syntheses of NO(+ 26.2%) and polyamines(+ 28.9%);placental concentrations of NOx(+ 22.5%),tetrahydrobiopterin(+ 21.1%),polyamines(+ 20.4%),c AMP(+ 27.7%),and c GMP(+ 24.7%);total amounts of NOx(+ 61.7% to + 96.8%),polyamines(+ 60.7% to + 88.7%),amino acids(+ 39% to + 118%),glucose(+ 60.5% to + 62.6

关键词： Angiogenesis Arginine Fetus Placenta Reproduction

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

Pre-implantation exogenous progesterone and pregnancy in sheep:***,nutrient transport,and progestamedins

引用

Journal of Animal Science and Biotechnology 2021年第3期12卷 935-951页

作者： Emily C.Hoskins Katherine M.Halloran Claire Stenhouse Robyn M.Moses Kathrin A.Dunlap Michael C.Satterfield Heewon Seo Gregory A.Johnson Guoyao Wu Fuller W.Bazer Departments of Animal Science Texas A&M UniversityCollege StationTX 77843-2471USA Veterinary Integrative Biosciences Texas A&M UniversityCollege StationTX 77843USA

Background:Administration of exogenous progesterone(P4)to ewes during the pre-implantation period advances conceptus development and *** study determined effects of exogenous P4 on transport of select nutrients and pathways that enhance conceptus *** ewes(n=38)were treated with either 25 mg P4 in 1 mL corn oil(P4,n=18)or 1mL corn oil alone(CO,n=20)from day 1.5 through day 8 of pregnancy and hysterectomized on either day 9 or day 12 of *** expression of genes encoding enzymes for synthesis of polyamines,transporters of glucose,arginine,and glycine,as well as progestamedins was determined by ***:On day 12 of pregnancy,conceptuses from P4-treated ewes had elongated while those from CO-treated ewes were *** mRNA expression of AZIN2,an arginine decarboxylase,was lower in endometria of P4-treated than CO-treated ewes on day 9 of *** of FGF10,a progestamedin,was greater in endometria of CO and P4-treated ewes on day 12 of gestation in addition to P4-treated ewes necropsied on day 9 of *** with P4 down-regulated endometrial expression of amino acid transporter SLC1A4 on day 12 of ***:Results indicated that administration of exogenous P4 during the pre-implantation period advanced the expression of FGF10,which may accelerate proliferation of trophectoderm cells,but also was correlated with decreased expression of glycine and serine transporters and polyamine synthesis enzyme *** research with increased sample sizes may determine how differential expression affects endometrial functions and potentially embryonic loss.

关键词： Amino acid Endometrium Gene expression Polyamine Progesterone

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

Complexation with pre-formed“empty”V-type starch for encapsulation of aroma compounds

引用

food Science and Human Wellness 2023年第2期12卷 488-494页

作者： Jingyi Zhou Lingyan Kong Department of Human Nutrition and Hospitality Management The University of AlabamaTuscaloosa35487USA

Aroma compounds are low-molecular-weight organic volatile molecules and are broadly utilized in the food ***,due to their high volatility and evaporative losses during processing and storage,the stabilization of these volatile ingredients using encapsulation is a commonly investigated *** of aroma compounds using starch inclusion complex could be a potential approach due to the hydrophobicity of the left-handed single helical *** the present study,we used starch of three different V-type structures,namely V,V,and V,to encapsulate six different aroma compounds,including1-decanol(DN),cis-3-hexen-1-ol(HN),4-allylanisole(AN),γ-decalactone(DA),trans-cinnamaldehyde(CA),and citral(CT).The formed inclusion complexes samples were characterized using complementary techniques,including X-ray diffraction(XRD)and differential scanning calorimetry(DSC).The results showed that upon complexation with aroma compounds,all V-subtypes retained their original crystalline ***,different trends of crystallinity were observed for each type of the prepared inclusion ***,among three V-type starches,V-type starch formed inclusion complexes with aroma compounds most efficiently and promoted the formation of FormⅡ*** study suggested that the structure of aroma compounds and the type of V starch could both affect the complexation properties.

关键词： Starch “Empty”V-type Aroma Inclusion complex Encapsulation

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：