Last edited by Durn
Saturday, August 1, 2020 | History

3 edition of Studies on insect spermatogenesis found in the catalog.

Studies on insect spermatogenesis

Robert Hall Bowen

Studies on insect spermatogenesis

by Robert Hall Bowen

  • 150 Want to read
  • 36 Currently reading

Published in [Lancaster, Pa .
Written in English

    Subjects:
  • Spermatogenesis in animals.

  • Edition Notes

    StatementRobert H. Bowen ...
    Classifications
    LC ClassificationsQL966 .B75
    The Physical Object
    Pagination1 p. l., [1], 316-362 p., 1 l.
    Number of Pages362
    ID Numbers
    Open LibraryOL6633027M
    LC Control Number21004585
    OCLC/WorldCa36603386

    the early '80s. In this book, entitled Molecular Mechanisms in Spermatogenesis, I have included a collection of chapters written by colleagues on the latest develop-ments in the field using genomic and proteomic approaches to study spermatogenesis, as well as different mechanisms and/or molecules including environmental toxicantsFile Size: 4MB. Social Life in the Insect World. This note covers the following topics: The Fable Of The Cigale and The Ant, The Cigale Leaves Its Burrow, The Song Of The Cigale, The Cigale: The Eggs and Their Hatching, The Mantis, The Golden Gardener, The Field Cricket, The Italian Cricket, The Sisyphus Beetle, The Instinct Of Paternity, A Bee-hunter: The Philanthus Aviporus, The Great Peacock Or Emperor.

    Studies on the spermatogenesis of Indian homoptera. I. Meiosis in two species of Eurybrachis (Fulgoridae) Authors; A study of the spermatogenesis of twenty-two species of the Membracidae, Jassidae, A study of chromosomes of the two species of spittle-insects belonging to the family Cercopidae (Homoptera). J. Fac. Sci. by: 5.   Studies using rats and mice suggest that retinoic acid (RA) plays a crucial role in these processes by triggering the differentiation of spermatogonia and adjusting the Sertoli cells’ cycle. For readers interested in this issue, please refer to the referenced literature. 38, 39,

    Whether you are looking for bee activities to go with your general insect theme or you are planning a whole study about bees, you’ll find what you need here. Science lesson plans about beehives, honey and pollination, bee crafts and even ideas for math and circle time will make your bee theme a g: spermatogenesis. Studies in Spermatogenesis Part II by Nettie Maria Stevens. Free audio book that you can download in mp3, iPod and iTunes format for your portable audio player. Audio previews, convenient categories and excellent search functionality make your best source for free audio books. Download a free audio book for yourself today!


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Studies on insect spermatogenesis by Robert Hall Bowen Download PDF EPUB FB2

Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in and In the books Stevens explains the research she conducted on chromosomal sex determination in the sperm and egg cells of insect species while at Bryn Mawr College, near Philadelphia, n: Studies in Spermatogenesis Paperback – Janu by Stevens Nettie Maria (Author) See all 12 formats and editions Hide other formats and editions.

Cited by: Studies in Spermatogenesis book. Read reviews from world’s largest community for readers. This work has been selected by scholars as being culturally imp Ratings: 0. STUDIES ON INSECT SPERMATOGENESIS. may be accompanied by still other peculiarities of constant occurrence (see Montgomery '10).

Within each lobe the cells are grouped in cysts which are arranged as a rule in a double2 series (as seen in longitudinal sections like that of. Studies on Insect Spermatogenesis. The History of the Cytoplasmic Components of the Sperm in Hemiptera is an article from Biological Bulletin, Volume Memoirs: Studies on Insect Spermatogenesis.

On the Formation of the Sperm in Lepidoptera Item Preview. On the basis of the facts brought out in this study it is suggested that: 1. The regularity in the division of the cytoplasmic elements of the cell, as illustrated by the mitochondria and Golgi bodies of Euschistus, is not the result of chance but is accomplished by a definite mechanism focused in the centrioles, and may perhaps partake of the nature of a meristic, as contrasted to a mass by: Studies on Insect Spermatogenesis.

On the Formation of the Sperm in Lepidoptera. By Robert H. Bowen. (From the Department of Zoology, Columbia University.) With Plates IN a paper published several years ago by Gatenb ft) y ( an accoun o sperft m formatio in Lepidoptern a was given,Cited by: 1.

The lepidopteran nebenkern passes through a series of condensation phenomena which are essentially similar to those previously described in Hemiptera.

The structure of the chromophilic material is probably that of a plate-work rather than a spireme. The central substance is developed in the nebenkern exactly as in other insects.

The Golgi bodies in all probability give rise each to Cited by: Studies on insect spermatogenesis @inproceedings{BawaStudiesOI, title={Studies on insect spermatogenesis}, author={Sukhdev Raj Bawa}, year={} } Sukhdev Raj Bawa; Save to Library.

Create Alert. Cite. Launch Research Feed. Create an AI-powered research feed to stay up to date with new papers like this posted to ArXiv. Studies in Spermatogenesis - Part II [Stevens, Nettie Maria] on *FREE* shipping on qualifying offers.

Studies in Spermatogenesis - Part II. STUDIES ON INSECT SPERMATOGENESIS. would have been exceedingly difficult, if not entirely impossible, in the spermatids of "normal" size.

This paper, therefore, deals exclusively with the large-cell generations, but the results have been checked in the small-cell generations and it is clear that the.

studies on insect spermatogenesis: i. the history of the cytoplasmic components of the sperm in hemipteraAuthor: Robert H Bowen. During spermiogenesis, the spermatids become elongated and the nuclei positioned in a peripheral region of the cyst. In general, in insects spermatogenesis culminates with the formation of spermatozoa organized in bundles, with all the nuclei positioned to.

Studies in spermatogenesis. [N M Stevens] based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

Book, Internet Resource: All. Studies in Spermatogenesis Part I by Nettie Maria Stevens. Free audio book that you can download in mp3, iPod and iTunes format for your portable audio player. Audio previews, convenient categories and excellent search functionality make your best source for free audio books.

Download a free audio book for yourself today. Page - Studies on Insect Spermatogenesis. II, The Components of the Spermatid and Their Role in the Formation of the Sperm in Hemiptera.‎.

Appears in 20 books from The Regulation of Spermatogenesis in Insects The Regulation of Spermatogenesis in Insects Dumser, J B J. Brian Dumser Department of Biology, Georgia Southern College, Statesboro, Georgia PERSPECTIVES AND OVERVIEW The process of gametogenesis in the male insect has received far less atten­ tion than the similar event in the female.

Studies in Spermatogenesis | This is a reproduction of a book published before This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc.

that were either part of the original artifact, or were introduced by the scanning process. Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in and In the books Stevens explains the research she conducted on chromosomal sex determination in the sperm and egg cells of insect species while at Bryn Mawr College, near Philadelphia, Pennsylvania.

Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in and In the books Stevens explains the research she conducted on chromosomal sex determination in the sperm and egg cells of insect species while at Bryn Mawr College, near Philadelphia, : Troy Cox.The forms selected for study have been taken from several groups of insects, and are all species whose spermatogenesis has not been previously worked out.

They are (1) a California termite, Termopsis angusticollis ; (2) a California sand-cricket, Stenopelmatus ; (3) the croton-bug, Blattella germanica ; (4) the common meal-worm, Tenebrio molitor ; and (5) one of the aphids, Aphis oenotherae.Insect Reproduction function of male reproductive system make spermatozoa storage send them off with proteins with many functions deliver the whole package to the females •testes • seminal vesicles • accessory glands • external genitalia general plan of male reproductive system testis follicles () testes can be separate ofFile Size: 2MB.