{"id":867,"date":"2021-05-21T13:14:54","date_gmt":"2021-05-21T17:14:54","guid":{"rendered":"http:\/\/www.montclair.edu\/water-science\/?page_id=867"},"modified":"2021-06-09T17:01:39","modified_gmt":"2021-06-09T21:01:39","slug":"cuspidothrix","status":"publish","type":"page","link":"https:\/\/www.montclair.edu\/water-science\/freshwater-cyanobacteria-of-new-jersey\/visual-guide-to-cyanobacteria-in-new-jersey\/filamentous\/heterocyte-forming\/cuspidothrix\/","title":{"rendered":"Cuspidothrix"},"content":{"rendered":"

Taxonomy<\/h2>\n
\n
Order<\/dt>\n
Nostocales<\/dd>\n
Family<\/dt>\n
Aphanizomenonaceae<\/dd>\n
Genus<\/dt>\n
Cuspidothrix<\/em><\/dd>\n<\/dl>\n

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

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

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

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

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

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

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

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

200X total magnification; phase contrast.<\/p><\/div>
\n<\/p><\/div>\n

Morphology<\/h2>\n

Solitary, free-floating filaments; straight or curved, occasionally slightly coiled; cylindrical; sometimes with fine, slimy envelopes, otherwise without sheaths. Trichomes unconstricted to slightly constricted at crosswalls; up to 6 \u03bcm wide; distinctly narrowed at the ends, and always sharply to bluntly pointed. Cells cylindrical to nearly barrel-shaped; isodiametric to longer than wide; finely granular cell content; facultative solitary aerotopes. Apical cells narrowed, elongated, and pointed; mostly hyaline.<\/p>\n

Heterocytes solitary and intercalary; cylindrical to ellipsoidal. Akinetes intercalary; solitary, rarely in pairs; either next to or distant from heterocytes; elongated and cylindrical; one or two akinetes per trichome.<\/p>\n

Ecology<\/h2>\n

Planktic; freshwater; in mesotrophic to eutrophic lakes, ponds, and reservoirs.<\/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. 183-212). Waltham, MA: Elsevier.<\/li>\n
  • Kom\u00e1rek, J. (2013). Cyanoprokaryota-3. Teil\/Part 3: Heterocytous Genera (J. R. Johansen, Ed.). In B. B\u00fcdel, G. G\u00e4rtner, L. Krienitz, & M. Schagerl (Eds.), S\u00fc\u00dfwasserflora von Mitteleuropa<\/em> (Vol. 19\/3, pp. 664-672). Heidelberg, Germany: Springer Spektrum.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    Taxonomy Order Nostocales Family Aphanizomenonaceae Genus Cuspidothrix Examples of Cuspidothrix Morphology Solitary, free-floating filaments; straight or curved, occasionally slightly coiled; cylindrical; sometimes with fine, slimy envelopes, otherwise without sheaths. Trichomes unconstricted to slightly constricted at crosswalls; up to 6 \u03bcm wide; distinctly narrowed at the ends, and always sharply to bluntly pointed. Cells cylindrical to […]<\/p>\n","protected":false},"author":34,"featured_media":611,"parent":827,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-867","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/867","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=867"}],"version-history":[{"count":5,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/867\/revisions"}],"predecessor-version":[{"id":1046,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/867\/revisions\/1046"}],"up":[{"embeddable":true,"href":"https:\/\/www.montclair.edu\/water-science\/wp-json\/wp\/v2\/pages\/827"}],"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=867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}