+ Translate
+ Most Popular
Gaucher's disease;thirty-two years experience at Siriraj Hospital
A study of Macrobathra Meyrick from China (Lepidoptera, Cosmopterigidae)
First occurrence in ores of tetragonal chalcocite
Effects of trace element nutrition on sleep patterns in adult women
N.Z. range management guidelines. 2. Design of grazing management systems for tussock country
A case of lipoma of the esophagus
A revision of world Acanthosomatidae (Heteroptera: Pentatomidae): keys to and descriptions of subfamilies, tribes and genera, with designation of types
Life history of the coronate scyphozoan Linuche unguiculata (Swartz, 1788)
Perceptual restoration of obliterated sounds
Mutagenicity studies on two chromium(III) coordination compounds
The formation of the skeleton. I. Growth of a long bone. 1st appearance of a center of calcification
Leucopenia and abnormal liver function in travellers on malaria chemoprophylaxis
The joint commission: four key root causes loom large in sentinel event data
Treatment of vitiligo with topical 15% lactic acid solution in combination with ultra violet-A
Behaviour of dairy cows within three hours after feed supply: I. Influence of housing type and time elapsing after feed supply
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Management and control of patients with type 2 diabetes mellitus in Lebanon: results from the International Diabetes Management Practices Study (IDMPS)
The diet composition and nutritional knowledge of patients with anorexia nervosa
Physoporella croatica Herak, 1958 of the Slovak karst Anisian (Slovakia, the West Carpathians Mts.)
Bright lights, big noise. How effective are vehicle warning systems?
Ein Plesiosaurier-Rest mit Magensteinen aus mittlerem Lias von Quedlinburg
Incidence of Chlamydia trachomatis in patients with sterility
Monster soup: the microscope and Victorian fantasy
Preliminary tests with residual sprays against poultry lice
Duration of the life of plants in phylogeny

Mesendoderm cells induce oriented cell division and invagination in the marine shrimp Sicyonia ingentis

Mesendoderm cells induce oriented cell division and invagination in the marine shrimp Sicyonia ingentis

Developmental Biology 320(1): 175-184

ISSN/ISBN: 0012-1606

PMID: 18589411

DOI: 10.1016/j.ydbio.2008.05.525

The mesendoderm (ME) cells are the two most vegetal blastomeres in the early developing embryo of the marine shrimp Sicyonia ingentis. These two cells enter mitotic arrest for three cycles after the 5th cell cycle (32-cell stage) and ingress into the blastocoel at the 6th cycle (62-cell stage). Circumjacent to the ingressing ME cells are nine presumptive naupliar mesoderm (PNM) cells that exhibit a predictable pattern of spindle orientation into the blastopore, followed by invagination. We examined the role of ME cells and PNM cells in gastrulation using blastomere recombinations and confocal microscopy. Removal of ME progenitors prevented gastrulation. Removal of any other blastomeres, including PNM progenitors, did not interfere with normal invagination. Altered spindle orientations occurred in blastomeres that had direct contact with one of the ME cells; one spindle pole localized to the cytoplasmic region closest to ME cell contact. In recombined embryos, this resulted in an extension of the region of ME-embryo contact. Our results show that ME cells direct the spindle orientations of their adjacent cells and are consistent with a mechanism of oriented cell division being a responsible force for archenteron elongation.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 023022181

Download citation: RISBibTeXText

Related references

Cleavage and gastrulation in the shrimp Sicyonia ingentis: invagination is accompanied by oriented cell division. Development 116(1): 127-140, 1992

Mesendoderm cell and archenteron formation in isolated blastomeres from the shrimp Sicyonia ingentis. Developmental Biology 164(2): 333-344, 1994

Development of the mesendoderm in the dendrobranchiate shrimp Sicyonia ingentis. Arthropod Structure and Development 31(1): 33-49, 2002

The fate and specification of 2- and 4-cell stage blastomeres in the marine shrimp Sicyonia ingentis. American Zoologist 32(5): 77A, 1992

Cell-cell association directed mitotic spindle orientation in the early development of the marine shrimp Sicyonia ingentis. Development 124(4): 773-780, 1997

Spermiogenesis in the marine shrimp sicyonia ingentis. Development Growth and Differentiation 28(2): 95-112, 1986

Oocyte activation in the marine shrimp sicyonia ingentis. Journal of Experimental Zoology 244(2): 325-330, 1987

Cryopreservation of sperm from the marine shrimp Sicyonia ingentis. Cryobiology 25(3): 238-243, 1988

Egg production, release and activation in the marine shrimp, Sicyonia ingentis. Crustacean Issues 7: 3-8, 1991

Larval development and hatching of the marine shrimp sicyonia ingentis. American Zoologist 28(4): 94A, 1988

Primary binding in the gametes of the marine shrimp sicyonia ingentis. Journal of Cell Biology 91(2 Part 2): 174A, 1981

Immunological characterisation of the acrosomal filament in the marine shrimp Sicyonia ingentis. Zygote 6(4): 329-339, 1998

Embryonic molting cycles and hatching in the marine shrimp sicyonia ingentis. American Zoologist 31(5): 91A, 1991

A study of feasibility of chromosome set manipulations of the marine shrimp sicyonia ingentis. Memoirs of the Queensland Museum 31: 287, 1991

Mating sperm storage and capacitation in the marine shrimp sicyonia ingentis. American Zoologist 28(4): 109A, 1988