|
|
| 1. |
The Germ‐Cells, Fertilization, and Early Development ofGrantia (Sycon) compressa*. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 261-297
J. Bronté Gatenby,
Preview
|
PDF (4441KB)
|
|
摘要:
SummaryChoanocyte or Collar‐Cell.1The nuclear background contains a fairly dense basophil substance, which is either a dense linin network or a chromophil karyoplasm—more probably the latter (Pl. 19. fig. 1).2The collar of the choanocyte has two thickenings, an inner and an outer; the latter one is very well marked; both thickenings are more easily seen in the partly withdrawn collar (Pl. 19. fig. 1, B).3The collar consists of delicate protoplasm which is best preserved by prolonged osmication; the collar‐cell is often drawn out into two regions, an outer “neck” and an inner “base,” containing all the granules and the nucleus (Pl. 19. fig. 4); the Golgi apparatus and centrosome generally lie in the “ neck,” other granules in the “base.”4Collar‐cells contain three cell‐elements other than the nucleus: the Golgi apparatus (and centrosome), the mitochondria, and metaplasmic store‐granules.5The mitochondria are irregular, but fine, and lie around the nucleus (PI. 19. fig. 1, M, fig. 3, M.)6The metaplasmic or yolky store granules are much larger than the mitochondria, but lie in the same region. (Pl. 19. figs. 1 and 4, Y).7The Golgi apparatus lies in the “neck” of the bottle‐shaped cell, either upon the nucleus (Pl. 19. fig. 1, A) or separately (Pl. 19. fig. 1, B).8In certain definite cases the centrosome is seen to lie inside the Golgi apparatus (Pl. 19. fig. 1, A) and the flagell
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01790.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
| 2. |
The Fragrance of Calcinean Sponges and the Spermatozoa ofGuanchaandSycon. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 299-304
G. P. Bidder,
Preview
|
PDF (548KB)
|
|
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01791.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
| 3. |
Syncrypta spongiarum, nova*. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 305-313
G. P. Bidder,
Preview
|
PDF (703KB)
|
|
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01792.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
| 4. |
Notes on the Physiology of Sponges. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 315-326
G. P. Bidder,
Preview
|
PDF (824KB)
|
|
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01793.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
| 5. |
On certain Nuclear Phenomena in the Oocytes of the Gall‐flyNeuroterus. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 327-333
Lancelot T. Hogben,
Preview
|
PDF (773KB)
|
|
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01794.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
| 6. |
Notes upon the Reproduction ofAsellus aquaticus. |
| |
Journal of the Linnean Society of London, Zoology,
Volume 34,
Issue 228,
1920,
Page 335-343
Ernest E. Unwin,
Preview
|
PDF (1015KB)
|
|
ISSN:0368-2935
DOI:10.1111/j.1096-3642.1920.tb01795.x
出版商:Blackwell Publishing Ltd
年代:1920
数据来源: WILEY
|
|
首页
