Comparative biochemistry and physiology最新文献_第6页

Contribution of the pentose cycle to glucose metabolism by insects 戊糖循环对昆虫葡萄糖代谢的贡献

Comparative biochemistry and physiology Pub Date : 1970-11-15 DOI: 10.1016/0010-406X(70)90541-4

W. Chefurka, Y. Horie , J.R. Robinson

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引用次数: 23

Regulation of sodium and potassium in muscle fibers of the ventricle of Union, a fresh-water lamellibrach 淡水板鳃鱼脑室肌纤维中钠、钾的调节

Comparative biochemistry and physiology Pub Date : 1970-11-15 DOI: 10.1016/0010-406X(70)90543-8

John G. Rutherford , Philip B. Dunham

引用次数: 5

Mechanism of ammonia production from aspartate in teleost liver 硬骨鱼肝脏中天冬氨酸产氨的机制

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90962-X

Ralph Janicki , Jo Lingis

{"title":"Mechanism of ammonia production from aspartate in teleost liver","authors":"Ralph Janicki , Jo Lingis","doi":"10.1016/0010-406X(70)90962-X","DOIUrl":"10.1016/0010-406X(70)90962-X","url":null,"abstract":"<div><ul><li>1.1. Ammonia production from l-aspartate was studied in liver homogenates from four species of teleosts: Myoxocephalus scorpius, M octodecimspinosus, Pseudopleuronectes americanus and Anguilla rostrata. Liver homogenates from two species of elasmobranchs, Squalus acanthias and Raja erinacea, failed to liberate ammonia from l-aspartate.</li><li>2.2. No ammonia was liberated from l-aspartate in liver homogenates from M. scorpius in the presence of transaminase inhibitors: 4 × 10−3 M semicarbizide, 5 × 10−3 M isonicotinoyl hydrazide and 4 × 10−3 M hydroxylamine.</li><li>3.3. Single subcellular fractions, nuclear, mitochondrial and cytoplasmic, failed to produce ammonia from l-aspartate. However, when mitochondrial and cytoplasmic fractions were combined, ammonia was produced from l-aspartate.</li><li>4.4. The results indicated a transamination reaction is involved in the liberation of ammonia from l-aspartate in teleost liver.</li></ul></div>","PeriodicalId":78189,"journal":{"name":"Comparative biochemistry and physiology","volume":"37 1","pages":"Pages 101-105"},"PeriodicalIF":0.0,"publicationDate":"1970-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0010-406X(70)90962-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16563946","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: 11

Comparison of three avian ovalbumins: Physical and chemical properties 三种鸟类卵清蛋白的比较:物理和化学性质

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90956-4

Melvin S. Weintraub , Max Schlamowitz

引用次数: 12

Effects of moulting cycle and nutritional conditions on haemolymph proteins in Carcinus maenas 换毛周期和营养条件对maenas血淋巴蛋白的影响

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90959-X

P. Busselen

引用次数: 58

Influence of the respiratory response to moderate and severe heat on the blood gas values of a macropodid marsupial (Macropus eugenii) 中暑和酷暑下呼吸反应对大足类有袋动物血气值的影响

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90957-6

Terence J. Dawson, R.W. Rose

{"title":"Influence of the respiratory response to moderate and severe heat on the blood gas values of a macropodid marsupial (Macropus eugenii)","authors":"Terence J. Dawson, R.W. Rose","doi":"10.1016/0010-406X(70)90957-6","DOIUrl":"10.1016/0010-406X(70)90957-6","url":null,"abstract":"<div><ul><li>1.1. Blood pH, pO2 and pCO2 values of the unanaesthetized tammar wallaby (Macropus eugenii) were determined at rest, and during moderate and severe heat stress. Values from anaesthetized animals were also obtained.</li><li>2.2. Similarities between the resting values and normal eutherian values are discussed in relation to the lower metabolic rates of marsupials.</li><li>3.3. The respiratory response of the tammar to heat was found to be similar to that of many eutherians. Exposure to moderate heat resulted in the respiratory rate increasing gradually until it stabilised at about 350 breaths/min. During severe heat stress the respiratory rate increased to higher values, and then decreased. The decrease in rate was similar to second-phase breathing as observed in some eutherians.</li><li>4.4. No major changes were observed in the acid-base status of the blood, when the tammar was panting during moderate heat. However during second-phase breathing a respiratory alkalosis occurred, apparently due to the excessive alveolar ventilation.</li></ul></div>","PeriodicalId":78189,"journal":{"name":"Comparative biochemistry and physiology","volume":"37 1","pages":"Pages 59-66"},"PeriodicalIF":0.0,"publicationDate":"1970-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0010-406X(70)90957-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76375310","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: 9

A comparison of the insulative and reflective properties of the fur of desert kangaroos 沙漠袋鼠皮毛隔热和反射性能的比较

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90954-0

Terence J. Dawson , Graham D. Brown

引用次数: 46

Role of the gills in osmotic regulation in the crayfish Astacus leptodactylus esch. 细爪螯虾鳃在渗透调节中的作用。

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90960-6

E. Bergmiler, J. Bielawski

引用次数: 25

A comparative study on the influence of temperature on the metabolism of glucose in isolated reptilian and mammalian muscle 温度对离体爬行动物和哺乳动物肌肉葡萄糖代谢影响的比较研究

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90958-8

Anne Beloff-Chain, K.A. Rookledge

引用次数: 4

A comparison of the insulative and reflective properties of the fur of desert kangaroos 沙漠袋鼠皮毛隔热和反射性能的比较

Comparative biochemistry and physiology Pub Date : 1970-11-01 DOI: 10.1016/0010-406X(70)90954-0

T. Dawson, G. Brown

引用次数: 46