Download The Biology of Paramecium by R. Wichterman PDF

By R. Wichterman

This thoroughly revised, up to date, and elevated version has been neces­ sitated by way of the various vital more moderen discoveries which have been made because the ebook of the 1st version. That quantity contained virtually 2000 references from the 1600s to 1953. in view that then and after an in depth seek, i've got accrued a few 3800 extra titles from the world's literature on Paramecium. After sure titles that mostly represented abstracts and initial experiences that have been by means of complete learn papers have been eradicated, nearly 4400 complete titles from the 1600s to the current have been chosen for inclusion during this version. lots of the titles within the Bibliography are the more moderen ones starting with 1953. I ponder the Bibliography a huge a part of the booklet: a great identify of a paper in a magazine is a minature summary of its contents. hence, the reader who can be drawn to acquiring more information no longer present in the e-book might refer on to the unique resource. A cursory exam of the Bibliography will show that parame­ cium learn has prolonged into all branches of biology, together with bio­ chemistry and biophysics. Like different components of technological know-how, paramecium examine has turn into hugely really expert and fragmented. i've got tried to prepare and current the elemental info in a single ebook. due to house obstacles, a few goods can have been handled in short. it really is in such situations that the Bibliography could be came upon to be invaluable.

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By R. Wichterman

This thoroughly revised, up to date, and elevated version has been neces­ sitated by way of the various vital more moderen discoveries which have been made because the ebook of the 1st version. That quantity contained virtually 2000 references from the 1600s to 1953. in view that then and after an in depth seek, i've got accrued a few 3800 extra titles from the world's literature on Paramecium. After sure titles that mostly represented abstracts and initial experiences that have been by means of complete learn papers have been eradicated, nearly 4400 complete titles from the 1600s to the current have been chosen for inclusion during this version. lots of the titles within the Bibliography are the more moderen ones starting with 1953. I ponder the Bibliography a huge a part of the booklet: a great identify of a paper in a magazine is a minature summary of its contents. hence, the reader who can be drawn to acquiring more information no longer present in the e-book might refer on to the unique resource. A cursory exam of the Bibliography will show that parame­ cium learn has prolonged into all branches of biology, together with bio­ chemistry and biophysics. Like different components of technological know-how, paramecium examine has turn into hugely really expert and fragmented. i've got tried to prepare and current the elemental info in a single ebook. due to house obstacles, a few goods can have been handled in short. it really is in such situations that the Bibliography could be came upon to be invaluable.

Show description

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Additional info for The Biology of Paramecium

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Morphology. Precise, overall surface measurements not given. Geographic Distribution. Reported as confined to temperate and cold regions of North America from Alaska to Florida. Bacterial Endosymbionts. None reported for this species. P. tetraurelia (4) Reference specimens: ATCC 30567 and ATCC 30568 (stocks d4-76 and 51E) Mating Reactions, Breeding Relations, and Inheritance of Mating Type. This species has a clonal system of mating type inheritance that seldom changes after fertilization except when conjugants exchange cytoplasm.

Their data and tables show that the distances between the sibling species are great, although, as noted earlier, P. primaurelia and P. pentaurelia were indistinguishable on the basis of the nine enzymes assayed. Using axenic cultures, similar results were obtained in the distribution of isozymes for the nine different enzymes in the P. aurelia complex of the 14 sibling species (S. L. Allen and Gibson, 1975). Since the food bacteria in a paramecium culture can contribute enzymes, the investigators emphasized the necessity of using axenically grown paramecia.

Primaurelia. Varia- Classification and Species 17 tions in chromosome number were also noted by Dippell (1954), and Sonneborn (1977a,b) reported that the chromosome number ranged from 30 to more than 60 pairs in different stocks of the same species in the P. aurelia complex. In his many detailed cytological studies of P. bursaria, Chen (1 940b) described the great variations of chromosome number appearing in different stocks of the species. As a morphological "marker," is the macronucleus of any systematic significance?

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