Comparative Biochemistry and Physiology Part B: Comparative Biochemistry最新文献_第4页

Adult and fetal hemoglobins in the oviparous swell shark, Cephaloscyllium ventriosum 卵生膨胀鲨的成体和胎儿血红蛋白

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90007-8

Leslie A. King

{"title":"Adult and fetal hemoglobins in the oviparous swell shark, Cephaloscyllium ventriosum","authors":"Leslie A. King","doi":"10.1016/0305-0491(94)90007-8","DOIUrl":"10.1016/0305-0491(94)90007-8","url":null,"abstract":"<div>Cephaloscyllium ventriosum is an oviparous, bottom-dwelling shark inhabiting shallow waters from central California to Chile. Hemoglobin oxygen affinities for adult, juvenile (5 and 8 months old), and pre- and posthatch (fetal up to 10 days posthatching) individuals were determined using thin-layer spectrophotometry of hemoglobin solutions stripped of organic phosphates. Adult hemogiobin had a P50 of 4.72± 0.30 mm Hg (N = 4, mean ± SE), juvenìle hemoglobin had a P50 of 3.77 ± 0.65 mmHg (N = 3), and pre- and posthatch hemoglobin had a P50 of 2.51 ± 0.19 mmHg (N = 6)—significantly (P < 0.05) higher than adult hemoglobin oxygen affinity. Adult blood was slightly alkaline (7.60–8.04; N = 4), had low venous PO2 values (0.5–14.5 mmHg; N = 4), and hematocrit and hemoglobin concentration increased with age. SDS-polyacrylamide gel electrophoresis revealed slight structural differences between the hemoglobin of adult and prehatch individuals. A hemoglobin with a higher intrinsic oxygen affinity may enable fetuses of C. ventriosum to more efficiently extract oxygen from the relatively stagnant environment within the egg case.</div>","PeriodicalId":100294,"journal":{"name":"Comparative Biochemistry and Physiology Part B: Comparative Biochemistry","volume":"109 2","pages":"Pages 237-243"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0305-0491(94)90007-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88067111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Lipid circulation in spiders. Transport of phospholipids, free acids and triacylglycerols as the major lipid classes by a high-density lipoprotein fraction isolated from plasma of Polybetes pythagoricus 蜘蛛的脂质循环。从毕达哥拉斯甜菜血浆中分离的高密度脂蛋白部分转运磷脂、游离酸和三酰基甘油作为主要脂类

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90017-5

M. Cunningham, R. Pollero, A. González

引用次数: 26

A novel tyrosine kinase activity in the cotton leafworm, Spodoptera littoralis 棉叶虫中一种新的酪氨酸激酶活性

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90009-4

Alison Pearce, Adam F. Durkin, Michael J. Fisher, Huw H. Rees, Claire F. Taylor, David G. Fernig

{"title":"A novel tyrosine kinase activity in the cotton leafworm, Spodoptera littoralis","authors":"Alison Pearce, Adam F. Durkin, Michael J. Fisher, Huw H. Rees, Claire F. Taylor, David G. Fernig","doi":"10.1016/0305-0491(94)90009-4","DOIUrl":"10.1016/0305-0491(94)90009-4","url":null,"abstract":"<div>A rapid, highly-specific ELISA for tyrosine kinases readily detects such activity in crude extracts prepared from rat mammary epithelial and fibroblastic cells that have been stimulated with epidermal growth factor or basic fibroblast growth factor. Tyrosine kinase activity is also found in extracts of pupae of the cotton leafworm, Spodoptera littoralis. Both the mammalian and the insect tyrosine kinases are ATP-dependent. Both cytosol and membrane-associated (Triton-X-100-soluble) fractions of Spodoptera littoralis pupae contain tyrosine kinase activity. The growth factor-stimulated tyrosine kinase activities in extracts of growth factor-stimulated rat mammary cells are inhibited by genistein and an analogue of erbstatin: methyl 2,5-dihydroxycinnamate. However, the tyrosine kinase activities present in pupae of Spodoptera littoralis are not sensitive to these inhibitors, suggesting that the major tyrosine kinases of Spodoptera littoralis pupae may be distinct from the growth factor-stimulated mammalian tyrosine kinases.</div>","PeriodicalId":100294,"journal":{"name":"Comparative Biochemistry and Physiology Part B: Comparative Biochemistry","volume":"109 2","pages":"Pages 253-259"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0305-0491(94)90009-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78951571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amino acid sequence determination of a protein purified from the shell of the shrimp, Pandalus borealis 北虾壳纯化蛋白的氨基酸序列测定

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90004-3

S.L. Jacobsen , S.O. Andersen , P. Højrup

引用次数: 12

A carboxylesterase from the parasitic nematode Ascaris suum homologous to the intestinal-specific ges-1 esterase of Caenorhabditis elegans 一种来自猪蛔虫的羧酸酯酶，与秀丽隐杆线虫肠道特异性的ges-1酯酶同源

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90006-X

Marie Azzaria , William J. Henzel , James D. McGhee

引用次数: 0

The composition of external lipids from adult whiteflies, Bemisia tabaci and Trialeurodes vaporariorum 成虫、烟粉虱和白粉虱体外脂质的组成

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90013-2

Dennis R. Nelson, James S. Buckner, Charlotte L. Fatland

{"title":"The composition of external lipids from adult whiteflies, Bemisia tabaci and Trialeurodes vaporariorum","authors":"Dennis R. Nelson, James S. Buckner, Charlotte L. Fatland","doi":"10.1016/0305-0491(94)90013-2","DOIUrl":"10.1016/0305-0491(94)90013-2","url":null,"abstract":"<div>The total surface lipids, including the wax particles, of the adult whiteflies of Bemisia tabaci and Trialeurodes vaporariorum were characterized. At eclosion, there were similar amounts of long-chain hydrocarbons, aldehydes, alcohols and wax esters. Within a few hours post-eclosion, long-chain aldehydes and long-chain alcohols were the dominant surface lipid components, C34 on B. tabaci and C32 on T. vaporariorum. Hydrocarbons, mainly n-alkanes, were minor components of the surface lipids. The major wax esters were C46 on B. tabaci and C42 on T. vaporariorum. The major acid and alcohol moieties in the wax esters of B. tabaci were C20 and C26, respectively, and of T. vaporariorum were C20 and C22, respectively. Both B. tabaci and T. vaporariorum had a minor wax ester composed of the fatty acid C18:1 esterified to the major alcohols, C34 and C32, respectively. Bemisia were readily distinguished from Trialeurodes based on the composition of their wax particles and/or their wax esters; however, no differentiating surface lipid components were detected between biotypes A and B of B. tabaci.</div>","PeriodicalId":100294,"journal":{"name":"Comparative Biochemistry and Physiology Part B: Comparative Biochemistry","volume":"109 2","pages":"Pages 293-303"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0305-0491(94)90013-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86335793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Comparative Biochemistry & Physiology B Bibliography 比较生物化学与生理学B参考书目

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90035-3

引用次数: 0

Biochemical principles of metabolic depression 代谢性抑郁症的生化原理

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90001-9

M. Guppy, C.J. Fuery, J.E. Flanigan

引用次数: 163

Characterization of a juvenile hormone binding lipophorin from the blowfly Lucilia cuprina 绿蝇幼体激素结合脂蛋白的研究

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90018-3

Stephen C. Trowell , Eric R. Hines , Anthony J. Herlt , Rodney W. Rickards

{"title":"Characterization of a juvenile hormone binding lipophorin from the blowfly Lucilia cuprina","authors":"Stephen C. Trowell , Eric R. Hines , Anthony J. Herlt , Rodney W. Rickards","doi":"10.1016/0305-0491(94)90018-3","DOIUrl":"10.1016/0305-0491(94)90018-3","url":null,"abstract":"<div>The larval haemolymph of the sheep blowfly Lucilia cuprina (Weidemann) contains a juvenile hormone binding protein with a Kd for racemic JH III of 33 ± 6 nM. The density of the binding sites is 212 ± 33 pmol/mg haemolymph protein. The binding protein is equally specific for JH III and methyl farnesoate. Some natural juvenoids were ranked for their ability to displace [3H]JH III with JH III > JH II > JH I > JH III > JH III diol > JHB3 = no detectable displacement. These data, together with displacement studies for 14 synthetic juvenoids, indicate some characteristics of the JH binding cleft. The binding protein is a high density lipophorin (density = 1.15 g/ml) and has subunit molecular weights of 228 kDa (apolipophorin I) and 70 kDa (apolipophorin II). The N-terminal amino acid sequences of the subunits have no discernible homology to any previously sequenced protein. Lipophorin-specific immunocytochemical staining occurs in a subset of fat body cells.</div>","PeriodicalId":100294,"journal":{"name":"Comparative Biochemistry and Physiology Part B: Comparative Biochemistry","volume":"109 2","pages":"Pages 339-357"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0305-0491(94)90018-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18558300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

kdr-Type resistance in insects with special reference to the German cockroach, Blattella germanica 昆虫对kdr型的抗性，特别涉及德国小蠊

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry Pub Date : 1994-10-01 DOI: 10.1016/0305-0491(94)90002-7

Jeffrey G. Scott, Ke Dong

{"title":"kdr-Type resistance in insects with special reference to the German cockroach, Blattella germanica","authors":"Jeffrey G. Scott, Ke Dong","doi":"10.1016/0305-0491(94)90002-7","DOIUrl":"10.1016/0305-0491(94)90002-7","url":null,"abstract":"<div>The phenomenon of knockdown resistance (kdr) was first noted in the housefly (Musca domestica), and has subsequently be found (i.e. kdr-type resistance) in several other insect pests including the German cockroach (Blattella germanica). This type of resistance causes insensitivity of the nervous system to pyrethroids, DDT and a limited number of sodium channel neurotoxins. In the German cockroach, kdr-type resistance is incompletely recessive, monogenic and not sex linked or due to cytoplasmic factors. Additionally, kdr-type resistance is not associated with a change in sodium channel density, kdr or kdr-type loci are tightly linked or identical to the para-homologous sodium channel locus in German cockroach, housefly and tobacco budworm (Heliothis virescens), suggesting that kdr and kdr-type resistance are due to mutations in the para-homologous sodium channel gene. kdr-Type resistance in the German cockroach appears similar, although not necessarily identical, to kdr in houseflies.</div>","PeriodicalId":100294,"journal":{"name":"Comparative Biochemistry and Physiology Part B: Comparative Biochemistry","volume":"109 2","pages":"Pages 191-198"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0305-0491(94)90002-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18561067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19