{"id":882,"date":"2021-05-21T13:33:54","date_gmt":"2021-05-21T17:33:54","guid":{"rendered":"http:\/\/www.montclair.edu\/water-science\/?page_id=882"},"modified":"2021-06-09T16:59:58","modified_gmt":"2021-06-09T20:59:58","slug":"jaaginema","status":"publish","type":"page","link":"https:\/\/www.montclair.edu\/water-science\/freshwater-cyanobacteria-of-new-jersey\/visual-guide-to-cyanobacteria-in-new-jersey\/filamentous\/non-heterocyte-forming\/jaaginema\/","title":{"rendered":"Jaaginema"},"content":{"rendered":"

Taxonomy<\/h2>\n
\n
Order<\/dt>\n
Synechococcales<\/dd>\n
Family<\/dt>\n
Pseudanabaenaceae<\/dd>\n
Genus<\/dt>\n
Jaaginema<\/em><\/dd>\n<\/dl>\n

Examples of Jaaginema<\/em><\/h2>\n

\n
\n
\"jaaginema<\/a><\/figure>\n

400X total magnification; 10 \u03bcm scale bar.<\/p><\/div>

\n
\"jaaginema<\/a><\/figure>\n

400X total magnification; 10 \u03bcm scale bar.<\/p><\/div>

\n
\"jaaginema<\/a><\/figure>\n

400X total magnification; phase contrast.<\/p><\/div>
\n<\/p><\/div>\n

Morphology<\/h2>\n

Trichomes solitary, in tangled clusters, or forming a thin, membrane-like thallus; never motile. Trichomes up to 3 \u03bcm wide; usually flexuous; typically unconstricted at crosswalls; sometimes slightly narrowed at the ends; not capitate (not abruptly wider and rounded at the end, as if with a cap on the end); without sheaths, or very rarely with a fine layer of mucilage around trichomes. Cells cylindrical; usually longer than wide (up to 10x longer), only rarely almost isodiametric. Apical cells typically rounded, occasionally conical; without a calyptra; very rarely with a slightly thickened outer cell wall. Cell content homogeneous and without aerotopes; sometimes with a solitary granule on either side of cell crosswalls (clearly visible in the third image to the right: seen in phase contrast, these granules look like white dots, in pairs along the length of the trichome).<\/p>\n

Ecology<\/h2>\n

Mostly benthic; on sediments or aquatic plants; or in metaphyton. In North America, reported from lakes, rivers, and springs (thermal and mineral).<\/p>\n

Not a very well-studied genus.<\/p>\n

References<\/h2>\n
    \n
  • Johansen, J. R., & Kom\u00e1rek, J. (2015). Filamentous Cyanobacteria. In J. D. Wehr, R. G. Sheath, & J. P. Kociolek (Eds.), Freshwater Algae of North America: Ecology and Classification<\/em> (2nd ed., pp. 146-148). Waltham, MA: Elsevier.<\/li>\n
  • \u00a0Kom\u00e1rek, J. & Anagnostidis, K. (2008). Cyanoprokaryota-2. Teil\/Part 2: Oscillatoriales. In B. B\u00fcdel, G. G\u00e4rtner, L. Krienitz, & M. Schagerl (Eds.), S\u00fc\u00dfwasserflora von Mitteleuropa<\/em> (Vol. 19\/2, pp. 108-117). Heidelberg, Germany: Spektrum.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    Taxonomy Order Synechococcales Family Pseudanabaenaceae Genus Jaaginema Examples of Jaaginema Morphology Trichomes solitary, in tangled clusters, or forming a thin, membrane-like thallus; never motile. Trichomes up to 3 \u03bcm wide; usually flexuous; typically unconstricted at crosswalls; sometimes slightly narrowed at the ends; not capitate (not abruptly wider and rounded at the end, as if with […]<\/p>\n","protected":false},"author":34,"featured_media":611,"parent":829,"menu_order":8,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-882","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/comments?post=882"}],"version-history":[{"count":6,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/882\/revisions"}],"predecessor-version":[{"id":1041,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/882\/revisions\/1041"}],"up":[{"embeddable":true,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/829"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/media\/611"}],"wp:attachment":[{"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/media?parent=882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}