Last edited by Fenriramar
Sunday, May 17, 2020 | History

3 edition of Studies on the germ cells of aphids. found in the catalog.

Studies on the germ cells of aphids.

by Nettie Maria Stevens

  • 327 Want to read
  • 5 Currently reading

Published by Carnegie Institution of Washington in Washington, D.C .
Written in English

    Subjects:
  • Aphids,
  • Embryology -- Insects

  • Edition Notes

    SeriesCarnegie Institution of Washington. Publication no. 51, Carnegie Institution of Washington publication -- 51
    Classifications
    LC ClassificationsQL958 S84
    The Physical Object
    Pagination28p.
    Number of Pages28
    ID Numbers
    Open LibraryOL23343094M

    Nieuwkoop, Pieter D. & Sutasurya, Lien A. , Primordial germ cells in the chordates: embryogenesis and phylogenesis / Pieter D. Nieuwkoop, Lien A. Sutasurya Cambridge University Press Cambridge [Eng.] ; New York. Wikipedia Citation. APHIDS Lee Townsend, Extension Entomologist Aphids are soft-bodied insects that use their piercing sucking mouthpa rts to feed on plant sap. They usually occur in colonies on the undersides o f te n de r te rm inal gr ow th. H eavi ly- inf es ted l eaves can wilt or turn yellow because of excessive sap removal. While the plant may look bad, aphidFile Size: KB.

    The Online Books Page. Online Books by. N. M. Stevens (Stevens, N. M. (Nettie Maria), ) A Wikipedia article about this author is available.. Stevens, N. M. (Nettie Maria), Studies on the Germ Cell of Aphids (Washington: Carnegie Institution of Washington, ) (page images at HathiTrust) Help with reading books-- Report a bad link-- Suggest a new listing. Series: Studies in biology ; no. 44 (Book 44) Paperback: 58 pages Publisher: Edward Arnold () Language: English ISBN ISBN Package Dimensions: x x inches Shipping Weight: ounces Customer Reviews: out of 5 stars 1 customer rating Amazon Best Sellers Rank: #8,, in Books (See Top in Books)Cited by:

    Studies on germ cells.: I. The history of the germ cells in insects with special reference to the keimbahn-determinants. Author Hegner, Robert William, Our results show that asexual and sexual oogenesis in aphids share common genetic programs but diverge by adapting specificities in their respective gene .


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Studies on the germ cells of aphids by Nettie Maria Stevens Download PDF EPUB FB2

Genre/Form: book: Additional Physical Format: Print version: Stevens, Nettie Maria, Studies on the germ cell of aphids. Washington, (DLC) The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community.

Book Title. Studies on the germ cells of aphids, By. Stevens, N. (Nettie Maria), Additional Physical Format: Online version: Stevens, Nettie Maria, Studies on the germ cell of aphids.

Washington, (OCoLC) Title. Studies on the germ cells of aphids. Related Titles. Series: Carnegie Institution of Washington publication ; 51 By.

Stevens, N. (Nettie Maria), Type. Book Material. : Studies on the Germ Cells of Aphids (Classic Reprint) (): N. Stevens: Books. Studies on the Germ Cells of Aphids (Classic Reprint): : N.

Stevens: Libros en idiomas extranjeros. Studies on the Germ Cells of Aphids by N M Stevens,available at Book Depository with free delivery worldwide. What is an aphid. Aphids are small, soft-bodied insects that feed by inserting their slender mouthparts into phloem cells, the food conduits of plants.

Most aphid species feed on only one species of plant and closely related aphid species tend to feed on closely related species of plants. Once an aphid finds the correct plant species, it simultaneously feeds and reproduces.

Using their carotenoids, aphids may well be able to absorb solar energy and convert it to a form that their cells can use, ATP. This is the only known example of photoheterotrophy in animals. The carotene pigments in aphids form a layer close to the surface of the cuticle, ideally placed to absorb : Insecta.

Aphids represent one of the world's major insect pests, causing serious economic damage to a range of temperate and tropical crops. These range from grain crops and brassicas to potato, cotton, vegetable and fruit crops.

This book provides a definitive reference volume on the biology of aphids, their pest status, and how to control them. It includes approximately 30 specially 4/5(1). 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.

Written:   Aphids induce orderly and patterned plant growth, not cancerous growths, by injecting unknown signals into plant cells. Furthermore, they can repair damaged galls caused by predators or meddlesome scientists.

Again, aphids inject unknown signals into plant cells surrounding the wound, causing plant growth that mends the breach. Looking for books by Nettie Maria Stevens. See all books authored by Nettie Maria Stevens, including Studies on the Germ Cells of Aphids, and Further Studies on the Ciliate Infusoria, Licnophora and Boveria, and more on   Discover Book Depository's huge selection of Maria Stevens books online.

Free delivery worldwide on over 20 million titles. We use cookies to give you the best possible experience. Studies on the Germ Cells of Aphids. N M (Nettie Maria) Stevens. 28 Aug Hardback. US$ Add to basket. Nature and Grace. Maria Stevens. (precursor cells to egg [6] and sperm [5] cells) and the somatic cells of mealworms.

At the time, researchers had noted that somatic cells contained a number of chromosomes, with one half contributed by each parent. They had also noted that germ cells [23] contained half of the number chromosomes found in somatic cells.

studies in spermatogenesis with especial reference to the "accessory chromosome." By N. STEVENS. In connection with the problem of sex determination it has seemed necessary to investigate further the so-called "accessory chromosome," which, according to McClung ('02), may be a sex determinant.

David Wininger, in Handbook of Stem Cells, Introduction. Parthenogenesis is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Parthenogenesis is derived from the Greek words for “virgin birth,” and several insect species including aphids, bees, and ants are known to reproduce by parthenogenesis.

This book combines fundamental information about aphids with chapters addressing state-of-the-art research in topics such as aphid-related phylogeny, genome biology, epigenetics and.

Nettie Maria Stevens (July 7, – May 4, ) was an American geneticist credited with the discovery of sexsoon after the rediscovery of Mendel's paper on genetics inshe observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome.

When the sperm with the large chromosome Alma mater: Westfield Normal School, Stanford. Abicor Binzel Swan Neck Pn Sonderrobo d M8 Ss M I Germ Open Box. $ Fight'n Fightn. Fight'n Fightn Rooster Mother Of Pearl Gunstock Solingen Germ. $ Maize Germ.

Maize Germ A Nutrient Dense Substance For Food Value-addition By Muhammad N. Studies on the Germ Cells of Aphids. $ Free shipping. Understanding Sea-Level Rise and Variability, Paperback by Church, John (EDT) $ $ Free shipping. Early Development of Lepas. a Study of Cell-lineage and Germ-layers by Maurice A Book must be returned in the same condition as sent.

All autographs are guaranteed Seller Rating: % positive.To date, early segregation of germ cells in oviparous embryos has been reported in just two species: the black willow aphid Melanoxanthus spp. and the spring grain aphid Toxoptera graminum.

In the black willow aphid, newly segregated ‘primitive germ cells’ were identified in the posterior region of the invaginating by: Condition: Good. This is an ex-library book and may have the usual library/used-book markings book has soft covers.

In good all round condition. Library sticker on front cover. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,grams, ISBN Seller Inventory #