Results 121 to 130 of about 775 (159)

The development of bioluminescence in the ctenophore Mnemiopsis leidyi

Developmental Biology, 1973
Abstract The photocytes of the ctenophore Mnemiopsis have a discontinuous distribution along the radial canal between the sites where the comb plate cilia cells are located on the side of the canal which contains the testes. They are separated from the lumen of the canal by a population of gastric cells. Cytologically these cells are characterized by
G, Freeman, G T, Reynolds
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leidyi Is a New Group of DD41D Transposons in Mnemiopsis leidyi Genome

Russian Journal of Genetics, 2019
The IS630/Tc1/mariner superfamily of transposable elements (TE) is one of the most numerous and widespread among DNA transposons. The IS630/Tc1/mariner TE are divided into eight families: IS630, Tc1, mariner, pogo, maT, mosquito, plants, and rosa. The members of the rosa family (DD41D transposons) were allocated to a separate group relatively recently ...
M. V. Puzakov, L. V. Puzakova
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Developmental expression of homeobox genes in the ctenophore Mnemiopsis leidyi

Development Genes and Evolution, 2008
Homeobox genes are a large family of genes that encode helix-turn-helix transcription factors that play fundamental roles in such developmental processes including body axis formation and cell specification. They have been found in a wide variety of organisms, from fungi to plants and animals, with some classes being specific to the Metazoa.
Kevin, Pang, Mark Q, Martindale
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SYMMETRY AND REGULATION IN MNEMIOPSIS LEIDYI, AGASSIZ

The Biological Bulletin, 1937
The ctenophores, a group in which Mnemiopsis is included, are usu ally referred to as biradially symmetrical animals. By some they are believed to have primarily a radial symmetry. There is of course the idea of bilateral symmetry expressed in the term biradial. As one sees this animal swimming freely in water it does seem to possess a radial symmetry.
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Feeding Rates of the Ctenophore, Mnemiopsis leidyi

Chesapeake Science, 1967
Rates of feeding by the ctenophoreMnemiopsis leidyi were measured in order to evaluate the importance of predation by ctenophores on populations of zooplankton. Copepods, mostlyAcartia tonsa, and ctenophores from the Patuxent River and the harbor at Solomons, Maryland, were used. Rates of feeding were correlated with the experimental containers and the
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APICAL DOMINANCE AND POLARITY IN MNEMIOPSIS LEIDYI, AGASSIZ

The Biological Bulletin, 1936
The locomotion of Mnemiopsis leidyi, as it moves along with its oral end forward near the surface of the water, serves to demonstrate that this animal possesses a definite polarity. The forward movement is a continuous reaction and is interrupted only when the animal bumps into some definite obstruction.
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بررسی تغذیه Mnemiopsis leidyi از زئوپلانکتونهای دریای خزر

2008
در این بررسی نمونه های Mnemiopsis leidyi، از پاییز 1382 تا زمستان 1383 بصورت فصلی در 11 ایستگاه واقع در چهار خط مطالعاتی بندر انزلی، خزرآباد، ترکمن و خلیج گرگان توسط تور مخصوص net METU و با چشمه 500 میکرون برداشت شد. بیشترین فراوانی غذایی را زئوپلانکتونAcartia (مراحل مختلف) از راسته کوپه پودا (66 درصد) و لارو دوکفه ای Lamellibranchia (13 درصد) داشتند ...
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Invasive comb jellies (Mnemiopsis leidyi) in Danish waters

2011
E-publication in fly fishing e-magazine: published 25 September 2010 online, see link http://www.pagegangster.com/p/J8Wtt/
Riisgård, Hans Ulrik, S. Tendal, Ole
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

بررسی فراوانی و پراکنش Mnemiopsis leidyi در آبهای گیلان

2005
در اواخر دهه 1990 Mnemiopsis leidyi از طریق آب توازن کشتی ها از دریای سیاه به دریای خزر حمل شد و اثرات منفی شدیدی بر این اکوسیستم آبی گذارد. در این مطالعه پراکنش زمانی و مکانی این شانه دار در سه خط مطالعاتی لیسار، بندرانزلی و سفیدرود در اعماق 5، 10، 20 و 50 متر از تیر ماه سال 1380 تا تیر ماه 1381 بصورت ماهانه در سواحل جنوب غربی آبهای ایرانی دریای خزر ...
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