Ref ID : 2573
Mario F. Canella; [Studi e Ricerche sui Tentaculiferi nel Quadro Della Biologia Generale] (Studies and researches on Tentaculifera (Suctoria) within the frame of general Biology). Annali Dell'Universita di Ferrara,Sezione III 1(4):259-716, 1957
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On the basis of personal researches and observations made on some species of Podophryidae, Acinetidae and Discophryidae (Discophrya collini in particular), and after critical examination of the literature from the fundamental works and memoirs of Claparede and Lachmann, Stein, Butschli, Maupas, Sand, Collin, etc. up to the lately published ones, - the Suctoria have been studied in the present monograph mainly referring to their phylogenesis and taxonomical position, embryogenetic processes and sexuality, nuclear apparatus, silverline system, behaviour and ecology, thin structure and physiology of tentacles, mechanisms of suction, etc., - putting forward new questions and making suggestions with regard to new experimental researches and work hypotheses. Dealing with these different aspects of the morphology and biology of Suctoria, the A. has not confined himself to obvious references and comparisons with other Protozoa, above all Ciliata, i.d. with the other groups of Heterokaryotes, but, in connection with the subjects dealt with, has also discussed (mainly in Addenda) some biological questions and problems of greater general interest, chiefly concerning: the disputable analogies and comparisons between Ciliophora and Metazoa stated by several authors (Maupas, Kofoid, Russo, Dogiel, etc.); the sexuality of Protists and its meaning; the presumed chromosomic and polyploidic constitution of the macronucleus; the chromosomes of classic genetics and Goldschmidt's chromosomes; the nucleo-endoplasmic interactions; the role played by endoplasm in the behaviour of nuclear apparatus; the genetic continuity or formation de novo of kinetosomes, mitochondria, plastids and other plasmic inclusions; the morphogenetic processes and nuclear differentiation; the hypothetical plasmagenes; the food specificity in Protozoa; the genic and enzymatic activities and the biosynthesis of proteins; the contractility and the ultrastructures of protoplasma, etc.