{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T01:16:07Z","timestamp":1781140567553,"version":"3.54.1"},"reference-count":59,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,1,30]],"date-time":"2018-01-30T00:00:00Z","timestamp":1517270400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["15K07197"],"award-info":[{"award-number":["15K07197"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Phycology"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:p><jats:italic>Diploneis<\/jats:italic> species have perhaps the most complex valve structure among pennate diatoms. The development of this structure was studied in <jats:italic>Diploneis smithii<\/jats:italic> and begins with the formation of a primary band, which then develops secondary arms at both poles and the center, as in the classic Chiappino\u2013Volcani model of raphid diatom ontogeny. Spine\u2010like projections grow out from the primary band and secondary arms to establish the transapical ribs (virgae) of the mature valve and themselves develop spines, which are spaced first oppositely and then alternately and fuse with each other to delimit the stria pores. Subsequently, new pattern and structures develop both externally (formation of bifurcating projections that fuse to delimit the outer, sieve\u2010like layer of the valve) and internally (growth and fusion of flanges from the first\u2010formed ribs to create the longitudinal canals and deposition of a hymenate strip over the internal face of each stria). Comparisons are made with morphogenesis in other diatoms. <jats:italic>Diploneis\u00a0smithii<\/jats:italic> ontogeny suggests how very slight developmental changes might have created the very variable external morphology of <jats:italic>Diploneis<\/jats:italic> species. It also indicates that the longitudinal canals of <jats:italic>Diploneis<\/jats:italic> and <jats:italic>Fallacia<\/jats:italic> have different origins, since the porous external wall is not formed as a unilaterally attached flap in <jats:italic>Diploneis<\/jats:italic> and the canal is internal to the first\u2010formed rib\u2013stria system in <jats:italic>Diploneis<\/jats:italic>, but external to it in <jats:italic>Fallacia<\/jats:italic>.<\/jats:p>","DOI":"10.1111\/jpy.12616","type":"journal-article","created":{"date-parts":[[2017,12,28]],"date-time":"2017-12-28T06:40:12Z","timestamp":1514443212000},"page":"171-186","source":"Crossref","is-referenced-by-count":13,"title":["Valve morphogenesis in <i>Diploneis smithii<\/i> (Bacillariophyta)"],"prefix":"10.1111","volume":"54","author":[{"given":"Masahiko","family":"Idei","sequence":"first","affiliation":[{"name":"Bunkyo University 3337 Minami\u2010ogishima Koshigaya\u2010shi Saitama 343\u20108851 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6649-6975","authenticated-orcid":false,"given":"Shinya","family":"Sato","sequence":"additional","affiliation":[{"name":"Fukui Prefectural University 1\u20101 Gakuen\u2010cho Obama Fukui 917\u20100003 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nagumo","family":"Tamotsu","sequence":"additional","affiliation":[{"name":"The Nippon Dental University Chiyoda\u2010ku Tokyo 102\u20108159 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0522-6802","authenticated-orcid":false,"given":"David G.","family":"Mann","sequence":"additional","affiliation":[{"name":"Royal Botanic Garden Edinburgh EH3 5LR UK"},{"name":"Aquatic Ecosystems Institute for Food and Agricultural Research and Technology (IRTA) Crta de Poble Nou Km 5.5 E\u201043540 Sant Carles de la R\u00e0pita Catalunya Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,1,30]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.0022-3646.1984.00563.x"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01275654"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1529-8817.1999.3561297.x"},{"key":"e_1_2_7_4_1","first-page":"303","volume-title":"Lange\u2013Bertalot\u2013Festschrift","author":"Cox E. 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