Skip to main content
Select Source:

Spirogyra

Spirogyra (division Chlorophyta) A genus of green freshwater algae, in which the thallus consists of unbranched filaments. It is capable of a spiral gliding motility when illuminated. The chloroplast forms a spiral, ribbon-like band which extends the length of the cell. Conjugation occurs by the formation of a tube connecting 2 cells; the contents of 1 cell pass through the tube and fuse with those of the other cell. Spirogyra is very common in standing fresh water, especially in spring.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Spirogyra." A Dictionary of Plant Sciences. . Encyclopedia.com. 19 May. 2018 <http://www.encyclopedia.com>.

"Spirogyra." A Dictionary of Plant Sciences. . Encyclopedia.com. (May 19, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spirogyra

"Spirogyra." A Dictionary of Plant Sciences. . Retrieved May 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/spirogyra

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.

spirogyra

spi·ro·gy·ra / ˌspīrəˈjīrə/ • n. Bot. a filamentous freshwater green alga (genus Spirogyra, division Chlorophyta) containing spiral bands of chloroplasts.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"spirogyra." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 19 May. 2018 <http://www.encyclopedia.com>.

"spirogyra." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (May 19, 2018). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spirogyra-0

"spirogyra." The Oxford Pocket Dictionary of Current English. . Retrieved May 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spirogyra-0

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.

spirogyra

spirogyraairer, bearer, carer, Clara, darer, declarer, Demerara, Éire, habanera, Halmahera, parer, Perak, primavera, repairer, Rivera, Riviera, Sarah, scarer, sharer, snarer, sparer, squarer, starer, swearer, tearer, wearer •cause célèbre • torch-bearer •swordbearer • pallbearer • wayfarer •seafarer • capoeira • Phaedra •sacra, simulacra •Libra, vers libre •ex cathedra •chypre, Yprespalaestra (US palestra) • urethra •joie de vivre •mirror, sirrah •Coimbra • Middlesbrough • Indra •Sintra •aspidistra, sistra •algebra • orchestra • vertebra •Beira, Fujairah, Hegira, Lyra, Myra, naira, palmyra, spirogyra •Hydra • Lycra •begorra, Gomorrah, horror •double entendre • genre • amour propre • Le Nôtre • contra •Cosa Nostra, rostra

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"spirogyra." Oxford Dictionary of Rhymes. . Encyclopedia.com. 19 May. 2018 <http://www.encyclopedia.com>.

"spirogyra." Oxford Dictionary of Rhymes. . Encyclopedia.com. (May 19, 2018). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spirogyra

"spirogyra." Oxford Dictionary of Rhymes. . Retrieved May 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/spirogyra

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.