REVIEWS

Book reviewed in this article:
The Shape of Things that Come.: Sexual Selection and Animal Genitalia .—William G. Eberhard.
Die Art in Raum und Zeit: Das Artkonzept in der Biologie und Palaontologie .—Rainer Willmann     

Reviews

Book reviewed in this article:
Cladistics: Perspectives on the Reconstruction of Evolutionary History. — Thomas Duncan and Tod F. Stuessy (eds.). 1984.
Das Phylogenetische System. — Peter Ax. 1984.
Beyond Neo-Darwinism: An Introduction to the New Evolutionary Paradigm. — M.-W. Ho and P. T. Saunders (eds.). 1984.
The Great Chain of History: William Buckland and the English School of Geology (1814–1849). — Nicolaas A. Rupke. 1983     

Die Wirkungsweise von Cercosporella herpotricboides Fron, dem Erreger der Halmbruchkrankheit des Getreides

In halt: 1. Einleitung und Aufgabenstellung.—2. Art und Ausmaß der Scnäden im Feld-versuch.—3. Wirkungen des Krankheitserregers auf Sommergetreide.—4. Bekämpfungsmöglichkeiten.—5. Besprechung der Ergebnisse.—Zusammenfassung.—Summary. —Literaturverzeichnis.     

Amomum jainii sp. nov. (Zingiberaceae) from N. E. India

A new species, Amomum jainii from N. E. India is described and illustrated. — CDRI Communication No. 5882.     

Eine Triebspitzenerkrankung der Weymouthskiefer (Pinus strobus L.), verursacht durch Scleroderris lagerhergii Gremmen

Inhalt: Einleitung. – 1. Krankheitsbild.—2. Der Krankheitserreger und seine Begleit-pilze.—3. Regenerationserscheinungen.—Zusammenfassung.—Summary.—Literatur- verzeichnis.     

Isolierung des Himbeerringfleckenvirus (raspberry ringspot virus) aus Roter Johannisbeere (Ribes rubrumL.)

Inhalt: 1. Einleitung.—2. Material und Methoden.—3, Ergebnisse: a) Reaktion von Obstgehölzen; b) Reaktion von krautlgen Testpflanzen; c) Physikalische Eigenschaften; d) Prämumtätsversuche; e) Serologische Untersuchungen.—4. Diskussion.—Zusammen-fassung.—Summary.—Literaturverzeichnis.     

Beiträge zur Analyse der Vektoreignung einiger wirtschaftlich wichtiger Blattlausarten und-rassen

Inhalt: A. Einleitung.—B. Bisher bekannte intraspezifische Unterschiede in den Vektoreigenschaften bei virusübertragenden Homopteren.—C. Die möglichen Ursachen für die untcrschicdliche Vcktorbefähigung der Blattlausrassen.—D. Material und Methode.—E. Übertragungsversuche. a) Die benutztcn Blattlausstamme und Altersstadien; b) Testpflanzen; c) Der Infektionserfolg in Abhängigkeit von der Infektionsquelle; d) Ergebnisse von Gruppenübertragungen; e) Einzeltierversuche; f) Versuche mit dem Bastard Myzus persicae (Sulz.) × Myzus myosotidis (Börn.).—F. Besprechung der Ergebnisse und Schlußfolgerungen.—Zusammenfassung.—Summary.—Literaturverzeichnis.     

Licht-und elektronenmikroskopische Untersuchungen der Chloroplasten chlorotischer Maispflanzen

In halt: I. Einleitung. — II. Material und Methode. — III. Untersuchungen an Chloroplasten bei Mangelchlorose. — IV. Untersuchungen an Chloroplasten bet funktioncller Chlorose. — V. Diskussion. — Zusammenfassung. — Summary. – Literaturverzeichnis.     

Sucrose synthase from wheat leaves. Comparison with the wheat germ enzyme

Sucrose synthase (UDP glucose: D-fructose-2-glucosyl transferase, EC 2.4.1.13) was partially purified from wheat ( Triticum aestivum L. cv. San Agustin INTA) leaves and its properties compared with the wheat germ enzyme. The leaf enzyme moved faster in polyacrylamide gel electrophoresis, was more sensitive to SH reagents and crossreacted more slowly with antibody prepared towards the germ enzyme. Kinetic constants were of the same order for all substrates. UDP was a strong inhibitor of the synthesis reaction. MgCl₂ stimulated this reaction and partially reversed UDP inhibition. Molecular weight determined by gel filtration was 380 and 370 kdalton for the leaf and germ enzymes respectively. Both enzymes presented forms of higher molecular weight estimated to around 800 and 1000 kdalton. Neither sucrose synthase from leaves nor from germ were affected by fructose 6-P, fructose 1,6—P₂, glucose 1—P, glucose 6—P, fructose 2,6—P₂ and cAMP.     

Untersuchungen zur Identifizierung und Differenzierung des Blattrollvirus der Kirsche (cherry leaf roll virus)

Inhalt: A. Symptomatologie.—B. Identifizierung. 1. Material und Methoden; 2. Ergeb-nisse; a) Reaktion von Obstsorten oder -arten, b) Reaktion von krautigen Testpflanzen, c) Eigenschaften des Virus in vitro, d) Partielle Reinigung des Virus, e) Serologische Untersuchungen, f) Partikelgestalt.—C. Differenzierung durch Testpflanzen.—D. Diskussion.—Zusammenfassung.—Summary.—Literaturverzeichnis.     

ON THE STRUCTURE OF TWO NEW GANGLIOSIDES FROM BEEF BRAIN

Abstract— Two new gangliosides were isolated in pure form from beef brain. They were provisionally named ganglioside G5a and G5b. Ganglioside GSa is a monosialoganglioside containing fucose. Its basic neutral glycosphingolipid core is the gangliotetraose ceramide: Gal (1 —> 3) GalNac (1—> 4) Gal (1 —> 4) Glc (1—>) ceramide, most likely with β-linkages. Fucose is linked to the 2-position of external galactose, N -acetylneuraminic acid to the 3- position of internal galactose. Ganglioside G5b is a mixture of at least two isomeric disialogangliosides containing N -acetylneuraminic acid and N -glycolylneura-minic acid. The major isomer has the following structure: NeuNac (α,2—>3) Gal (β,1—>3) GalNac (β, 1 —> 4) (NeuNglα, 2 —> 3) gal (β,1—>4) Glc (β,1 —>)-ceramide. The minor isomer contains N -acetylneur-aminic acid and N -glycolylneuraminic acid in an inverted linkage position.     

Chapter IV. Records.

Explanation of the Chapter—History of the genus Cisticola —List of the most important records, with criticism and translation of the nomenclature into that of the classification offered in the Review, arranged alphabetically—Summary of the museum material on which the Review is based; its quantity and location; its origin—Account of our Cisticola tour in Africa in 1926-7.     

Reviews

Book reviewed in this article:
Gentlemanly Cladistics: Phylogenetic Reconstruction in Paleontology .—Robert M. Schoch.
Coevolution and Systematics .—A. R. Stone and D. L. Hawksworth (eds.).
Systematic and Taxonomic Approaches in Palaeobotany .—Robert A. Spicer and Barry A. Thomas (eds.).
Cladistic Biogeography —Christopher J. Humphries and Lynne R. Parenti.
Chondrichthyes II: Mesozoic and Cenozoic Elasmobranchii —H. Cappetta.
Handbook of Paleoichthyology, vol. 3B, Fischer     

Reviews

Book reviewed in this article:
Neutral Models in Biology. —Matthew H. Nitecki and Antoni Hoffman (eds).
The Expanding Earth, a Symposium .—S. Warren Carey (Convener and Editor).
Theories of the Earth and Universe: a History of Dogma in the Earth Sciences. —S. Warren Carey.
Classification, Evolution and Phylogeny of the Families of Dicotyledons. —Aaron Goldberg.     

Reviews

Book reviewed in this article:
Evolution and Classification: The Reformation of Cladism .—Mark Ridley.
Phylogenetic Systematics of the Drynarioideae (Polypodiaceae) .—M. C. Roos.
Oxford Surveys in Evolutionary Biology: Volume 1 .—Richard Dawkins and Mark Ridley (eds.).
Oxford Surveys in Evolutionary Biology, Volume 2 .—R. Dawkins and M. Ridley (eds.) 1985.
An Illustrated Guide to the Protozoa .—John J. Lee, Seymour H. Hutner, and Eugene Bovee (eds.).
Ontogeny and Systematics of Fishes .—H. G. Moser, W. J. Richards, D. M. Cohen, M. P. Fahay, A. W. Kendall, Jr., and S. L. Richardson (eds.).
Morphometrics in Evolutionary Biology .—F. Bookstein, B. Chernoff, R. Elder, J. Humphries, G. Smith, and R. Strauss.     

Validation of Ranunculus ficaria L. ssp. fertilis Clapham ex Lqaard (Ranunculaceae)

The origin and status of the name Ranunculus ficaria L. var. or ssp. fertilis is discussed and the infraspecific name is validated. — Flora Nordica Notes No. 27.     

Phase transitions in sphingomyelin thin filsm. A spin label study

3-Spiro-(2′-(N-oxyl-4′,4′-dimethyloxazolidine)) — cholestane, (I) and 12-spiro-(2′-(N-oxyl-4′,4′-dimethyloxazolidine))-stearic acid (II) have been used as molecular probes to study the interaction of sphingomyelin and cholesterol in both dry and hydrated oriented films at different temperatures. The presence of 50 mole percent cholesterol causes a gel to liquid crystalline phase transition of bovine brain sphingomyelin at 20°C. A temperature induced phase transition involving the phospholipid polar groups has been detected. The mean transition temperature from a rigid to a fluid bilayer lattice structure is 32°C ±0.5°C in hydrated equimolar sphingomyelin — cholesterol films.