FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2157192009> ?p ?o ?g. }

• W2157192009 endingPage "375" @default.
• W2157192009 startingPage "365" @default.
• W2157192009 abstract "Segregations of specific cytoplasms occur during early cleavage of the ascidian egg (Conklin, 1905) of which the most obvious is the localization of the myoplasm, presumptive for larval musculature, in the posterior cells at the four-cell stage. Cytological (Meves, 1913; Duesberg, 1915; Conklin, 1931) and cytochemical (Ries, 1937) studies indicate the localization of granules, presumably mitochondria, within the myoplasm. Recently Reverberi (1956) followed the distribution of mito chondria during development, using the vital stain, Janus green. The quantitative measurements of cytochrome oxidase in anterior and posterior blastomeres (Berg, 1956) gave a biochemical confirmation of the above studies as regards the localiza tion of mitochondria. The present study is a continuation of quantitative chemical analyses of anterior and posterior blastomeres from the four-cell stage of Ciona, choosing constituents which might be expected to be located on cellular particles. The minute amounts of cytoplasm available require the use of microchemical methods and limit the number of substances which may be studied; however, differences in activities of succinic de hydrogenase, apyrase, acid phosphatase, and ribonucleic acid have been found in homogenates of the two types of cells. METHODS Chorions were digested off unfertilized Ciona eggs in 3 per cent protease in sea water. The “?�naked” eggs were washed thoroughly, fertilized, and transferred to agar-coated dishes. At the end of the first cleavage the blastomeres were separated in large numbers by agitation and as each of these cleaved in turn, the anterior and posterior cells were separated with the tip of a fine braking pipette and segregated into different dishes. The posterior blastomere is recognizable by an elongated shape and a clear cyto plasmic cap (Castle, 18%). These characteristics are transitory and the period for separation is critical; separation before completion of the cleavage furrow results in cytolysis whereas shortly after cleavage identification becomes increasingly diffi cult due to sphering of the posterior cell. This period was extended by lowering the temperature to 8_100 C. after completion of cleavage, thus prolonging the elon gated state of the posterior cell. Furthermore it was discovered that with oblique" @default.
• W2157192009 created "2016-06-24" @default.
• W2157192009 creator A5070437666 @default.
• W2157192009 date "1957-12-01" @default.
• W2157192009 modified "2023-09-25" @default.
• W2157192009 title "CHEMICAL ANALYSES OF ANTERIOR AND POSTERIOR BLASTOMERES OF CIONA INTESTINALIS" @default.
• W2157192009 cites W1544423740 @default.
• W2157192009 cites W170240114 @default.
• W2157192009 cites W1775749144 @default.
• W2157192009 cites W195762992 @default.
• W2157192009 cites W1969063954 @default.
• W2157192009 cites W2029432595 @default.
• W2157192009 cites W2038318662 @default.
• W2157192009 cites W2048895558 @default.
• W2157192009 cites W2055780945 @default.
• W2157192009 cites W2058779275 @default.
• W2157192009 cites W2178610468 @default.
• W2157192009 cites W2192212718 @default.
• W2157192009 cites W2396191451 @default.
• W2157192009 cites W2418868193 @default.
• W2157192009 cites W2469428636 @default.
• W2157192009 cites W563841913 @default.
• W2157192009 cites W577221246 @default.
• W2157192009 doi "https://doi.org/10.2307/1539067" @default.
• W2157192009 hasPublicationYear "1957" @default.
• W2157192009 type Work @default.
• W2157192009 sameAs 2157192009 @default.
• W2157192009 citedByCount "15" @default.
• W2157192009 crossrefType "journal-article" @default.
• W2157192009 hasAuthorship W2157192009A5070437666 @default.
• W2157192009 hasBestOaLocation W21571920092 @default.
• W2157192009 hasConcept C104317684 @default.
• W2157192009 hasConcept C105702510 @default.
• W2157192009 hasConcept C151730666 @default.
• W2157192009 hasConcept C175156509 @default.
• W2157192009 hasConcept C190062978 @default.
• W2157192009 hasConcept C196843134 @default.
• W2157192009 hasConcept C2779528156 @default.
• W2157192009 hasConcept C43369102 @default.
• W2157192009 hasConcept C55493867 @default.
• W2157192009 hasConcept C68760520 @default.
• W2157192009 hasConcept C86803240 @default.
• W2157192009 hasConcept C87073359 @default.
• W2157192009 hasConcept C95444343 @default.
• W2157192009 hasConceptScore W2157192009C104317684 @default.
• W2157192009 hasConceptScore W2157192009C105702510 @default.
• W2157192009 hasConceptScore W2157192009C151730666 @default.
• W2157192009 hasConceptScore W2157192009C175156509 @default.
• W2157192009 hasConceptScore W2157192009C190062978 @default.
• W2157192009 hasConceptScore W2157192009C196843134 @default.
• W2157192009 hasConceptScore W2157192009C2779528156 @default.
• W2157192009 hasConceptScore W2157192009C43369102 @default.
• W2157192009 hasConceptScore W2157192009C55493867 @default.
• W2157192009 hasConceptScore W2157192009C68760520 @default.
• W2157192009 hasConceptScore W2157192009C86803240 @default.
• W2157192009 hasConceptScore W2157192009C87073359 @default.
• W2157192009 hasConceptScore W2157192009C95444343 @default.
• W2157192009 hasIssue "3" @default.
• W2157192009 hasLocation W21571920091 @default.
• W2157192009 hasLocation W21571920092 @default.
• W2157192009 hasOpenAccess W2157192009 @default.
• W2157192009 hasPrimaryLocation W21571920091 @default.
• W2157192009 hasRelatedWork W1517337851 @default.
• W2157192009 hasRelatedWork W1847549010 @default.
• W2157192009 hasRelatedWork W1964772089 @default.
• W2157192009 hasRelatedWork W1993286098 @default.
• W2157192009 hasRelatedWork W2029432595 @default.
• W2157192009 hasRelatedWork W2048895558 @default.
• W2157192009 hasRelatedWork W2049332530 @default.
• W2157192009 hasRelatedWork W2053084918 @default.
• W2157192009 hasRelatedWork W2055267804 @default.
• W2157192009 hasRelatedWork W2067880712 @default.
• W2157192009 hasRelatedWork W2069310099 @default.
• W2157192009 hasRelatedWork W2077485078 @default.
• W2157192009 hasRelatedWork W2124353660 @default.
• W2157192009 hasRelatedWork W2281043904 @default.
• W2157192009 hasRelatedWork W2314927787 @default.
• W2157192009 hasRelatedWork W2346699763 @default.
• W2157192009 hasRelatedWork W2358592635 @default.
• W2157192009 hasRelatedWork W2387740360 @default.
• W2157192009 hasRelatedWork W2405516236 @default.
• W2157192009 hasRelatedWork W2417436019 @default.
• W2157192009 hasVolume "113" @default.
• W2157192009 isParatext "false" @default.
• W2157192009 isRetracted "false" @default.
• W2157192009 magId "2157192009" @default.
• W2157192009 workType "article" @default.