Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete最新文献

{"title":"[Fatty acids of esters of secondary carotenoids from Ankistrodesmus braunii (Naegeli) Collins (Chlorophyta, Chlorococcales)].","authors":"F C Czygan","doi":"10.1515/znb-1971-0318","DOIUrl":"https://doi.org/10.1515/znb-1971-0318","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"264-7"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0318","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502745","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}

{"title":"[Analysis of the RNA fractions of mouse liver: comparison of the extraction methods of Kirby and Georgiev].","authors":"W Hennig, W Kunz, B Schnieders, K Williams","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"235-43"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502740","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}

{"title":"Glial cells in the myenteric plexus.","authors":"G Gabella","doi":"10.1515/znb-1971-0313","DOIUrl":"https://doi.org/10.1515/znb-1971-0313","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"244-5"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502741","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}

{"title":"[Mass spectra of 1-dimethylaminonaphthalene-5-sulfonyl derivatives of some metabolites of catecholamines].","authors":"H Egge, H Ockenfels, H Thomas, F Zilliken","doi":"10.1515/znb-1971-0311","DOIUrl":"https://doi.org/10.1515/znb-1971-0311","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"229-34"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0311","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502739","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}

{"title":"[13C-NMR chemical shifts of amino acids and peptides].","authors":"W Voelter, G Jung, E Breitmaier, E Bayer","doi":"10.1515/znb-1971-0308","DOIUrl":"https://doi.org/10.1515/znb-1971-0308","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"213-25"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0308","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502737","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}

{"title":"[Effects of osmotic shock and triton treatment on sorbose transport in Neurospora].","authors":"A Hack, W Klingmüller","doi":"10.1515/znb-1971-0315","DOIUrl":"https://doi.org/10.1515/znb-1971-0315","url":null,"abstract":"1. Conidia of Neurospora crassa were either subjected to osmotic shock or treated with the detergent triton X-100. A decrease in the amount of 14C-sorbose taken up, as measured by means of the millipore filter technique, served as criterium for the efficiency of both procedures. Treated cells were either a) pregerminated with fructose, b) ungerminated but preincubated with sorbose or c) ungerminated and not preincubated, to check for a possible loss of fructose-inducible, sorbose-inducible or constitutive transport components respectively. 2. In contrast to reports for bacteria, osmotic shock by transferring conidia from 30 - 60% sucrose solutions to 5·10-4м MgCl2-solution after 5 minutes did not decrease transport activity. Rather there was an increase in the amount of sorbose taken up after such treatment (Table 1). However, if sucrose was replaced by concentrated minearl salts solution (Vogels minimal 4.75 м stock solution) a drastic decrease of sorbose uptake was observed in conidia pregerminated with fructose (Fig. 1). Ungerminated conidia preincubated with sorbose did not respond to a shock with mineral salts solution; they did however respond, if 2% triton was added to the salts solution (Table 2). Triton alone was uneffective under comparable conditions (Table 2), but it became effective if the triton concentration was increased and the duration of treatment was extended to 30 minutes (Fig. 2). Ungerminated, not preincubated conidia showed the same reduction of sorbose uptake if treated with triton in this way (Fig. 2). 3. Whenever a decrease of sorbose uptake was observed, it was correlated with a decrease in cell survival. However, the amount of killing does not suffice to explain in full the decrease in sorbose uptake per sample. Thus even surviving cells demonstrate a decrease of sorbose uptake, the reasons for which are considered as follows: a) Cells preloaded with 14C-sorbose show the same rate of sorbose efflux, whether shocked with mineral salts solution or not (Fig. 3). The shock therefore does not cause an unspecific leakiness of the cell wall or membrane. b) Oxygen consumption in cell suspensions, as measured by an oxygen macro electrode, is strongly retarded for fructose pregerminated cells which have been shocked with mineral salts solution (Fig. 4). This retardation together with killing is fully sufficient to explain the decrease in sorbose uptake observed. Ungerminated cells preincubated with sorbose do not show this effect, not even after prolonged treatment with triton, when their ability to take up sorbose is reduced. Hence, in such material a loss of specific transport components is indicated.","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 3","pages":"250-5"},"PeriodicalIF":0.0,"publicationDate":"1971-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0315","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15502743","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}

{"title":"Serological behaviour of an \"incomplete\" and \"superagglutinating\" anti-A from the snail Helix pomatia.","authors":"I Ishiyama, A Takatsu, G Uhlenbruck, U Reifenberg, S Schnitzler, O Prokop","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 2","pages":"171"},"PeriodicalIF":0.0,"publicationDate":"1971-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15498261","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}

{"title":"Photoreactions and complex formation of retinal monolayers at a water-air interface.","authors":"R E Brockman, S S Brody","doi":"10.1515/znb-1971-0213","DOIUrl":"https://doi.org/10.1515/znb-1971-0213","url":null,"abstract":"Monomolecular films of cis or trans isomers of retinal were spread at a water-air interface. Isotherms were measured. The area per molecule (extrapolated to zero pressure) for 9-cis retinal, all-trans retinal, and 13-cis retinal on 10-2 ᴍ phosphate buffer at pH 6 is 56 Å2, 54 Å2 and 45 Å2, respectively. Complexation was observed between 9-cis retinal (9-cis) and β-mercaptoethylamine (MEA) dissolved in the subphase; however, ʟ-lysine does not appear to form a complex wth 9-cis retinal. The area per molecule of the complex as a function of subphase concentration (MEA) was determined. The area per molecule for 9-cis is decreased to 49 Å2 after irradiation with blue light. Irradiation does not appear to break the complex between 9-cis and MEA. The lower limit for the quantum yield for photoisomerization of 9-cis, on phosphate buffer, is 0.06. When 9-cis is complexed with MEA (5 × 10-6 ᴍ) the quantum yield for photoisomerization is lowered, e. g. at 5 × 10-6 ᴍ MEA the yield is 0.03.","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 2","pages":"119-25"},"PeriodicalIF":0.0,"publicationDate":"1971-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15500382","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}

{"title":"[Use of a stopped-flow technic for short-pulse incubation of microorganisms and cell suspensions].","authors":"P L Schell","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 2","pages":"174-5"},"PeriodicalIF":0.0,"publicationDate":"1971-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15498263","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}

{"title":"[Comparative studies on hydration dependent changes of DNA secondary structure of isolated DNA, isolated nucleohistone and DNA in situ].","authors":"D Zirwer, M Becker, E Buder, W Schälike, R Wetzel","doi":"10.1515/znb-1971-0212","DOIUrl":"https://doi.org/10.1515/znb-1971-0212","url":null,"abstract":"Hydration dependent changes of DNA conformation of calf thymus DNA, Locusta sperm DNA, calf thymus and Locusta sperm nucleohistone and Locusta DNA in situ were studied by means of linear dichroic measurements. A comparison of the results leads to the following conclusion. The changes of DNA conformation in situ as a function of the degree of hydration may depend on the species specifity of (a) both DNA and protein of the complex, (b) the conformation of the complex and (c) the interactions between DNA and protein.","PeriodicalId":23706,"journal":{"name":"Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete","volume":"26 2","pages":"115-9"},"PeriodicalIF":0.0,"publicationDate":"1971-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1971-0212","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15500381","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}