𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cytogeographical studies of the cell surface inParamecium caudatum

✍ Scribed by Watanabe, Tsuyoshi

Book ID
102891536
Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
548 KB
Volume
215
Category
Article
ISSN
0022-104X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In paramecium caudatum, distribution of two kinds of cortical units, i.e., one‐cilium units and two‐cilium units, was compared to the area of deciliation during sexual reproduction. Two‐cilium units, which were confirmed by the presence of 2 ciliary stubs after total chemical deciliation, are distributed on the anterior‐left (cell's left) field and circumoral field of the ventral surface. Near the anterior tip region, two‐cilium units were observed on both sides of the suture line. In contrast with this, the postero‐ventral half of the cell and the dorsal surface are composed exclusively of one‐cilium units. When the area of local deciliation during sexual reproduction was compared with the area containing two‐cilium units, no correlation was observed except at the anterior tip region.

📜 SIMILAR VOLUMES

A possible mechanism of chemical inducti
A possible mechanism of chemical induction of conjugation inParamecium: Importance of cationic exchange on the cell surface
✍ Kitamura, Akio ;Hiwatashi, Koichi 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 428 KB

## Abstract The effect of calcium ions on the chemical induction of conjugation in __Paramecium caudatum__ was examined in the simplest medium that induces conjugation, containing either KCI or MnCl~2~ in TRIS‐HCI buffer. The concentration of K ions necessary for induction increased with the concen

Indispensable function of the germ nucle
Indispensable function of the germ nucleus for postconjugational stomatogenesis inParamecium caudatum: Evidence against its genic function shown by hypohaploid micronuclei
✍ Nakajima, Yuka ;Mikami, Kazuyuki 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 188 KB

It is known that the germinal micronucleus at the stages of gametogenesis and/or fertilization has an indispensable function for the postconjugational development of oral apparatus (stomatogenesis) in Paramecium caudatum. To determine whether this function is due to some specific genes in the micron

Are sugar residues involved in the speci
Are sugar residues involved in the specific cell recognition of mating inParamecium?
✍ Kitamura, Akio ;Hiwatashi, Koichi 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 802 KB

## Abstract To characterize the chemical nature of the substances responsible for the agglutinative mating reaction in __Paramecium caudatum__, the effects of a variety of reagents on the mating activity of detached cilia were studied quantitatively. Treatment of mating‐reactive cilia with sodium p