Sung Yeon Lee, Hae Jin Jeong, Ji Eun Kwon, Ji Hyun You, So Jin Kim, Jin Hee Ok, Hee Chang Kang, Jae Yeon Park
Wikimedia Commons
Micrographs of vegetative cells of Heterocapsa minima HMMJ1604 taken by scanning electron microscopy. (A) Ventral view showing the epitheca, cingulum (c), sulcus (as, las, rs, lps, and ps), and hypotheca. (B) Ventral-left lateral view showing the epitheca, cingulum (c), sulcus (as, las, lps, and ps), and hypotheca. (C) Dorsal view showing the epitheca, cingulum (c), and hypotheca. (D) Ventral-right lateral view showing the epitheca, cingulum (c), sulcus (as, rs, lps, and ps), and hypotheca. (E) Enlarged from (A) showing detailed view of sulcus (as, las, rs, lps, and ps). (F) Apical pore complex (Po, cp, ?, x) and thecal pores arranged in the Po plate. (G) Apical view showing the apical pore complex (Po, cp, ?, x), epitheca and sulcus (as). (H) Antapical view showing the hypotheca, and sulcus (ps). as, anterior sulcal; las, left anterior sulcal; rs, right sulcal; lps, left posterior sulcal; ps, posterior sulcal; Po, apical pore plate; cp, cover plate; x, canal plate; ?, the extra structure acting as a hinge or connection. Scale bars represent: A–H, 1 μm.
Shiho Hayakawa, Yasuharu Takaku, Jung Shan Hwang, Takeo Horiguchi, Hiroshi Suga, Walter Gehring, Kazuho Ikeo, Takashi Gojobori
Wikimedia Commons
Summary[
edit] Description: English: Erythropsidinium spp. and its subcellular structure eyespot “ocelloid”. (A) Light micrographs (LM) of Erythropsidinium spp. H = hyalosome (crystallin body), R = retinal body, N = nucleus, FL = flagella, PS = piston. (B) Transmission electron micrographs (TEM) of ocelloid. (C) The refractile nature of the hyalosome under fluorescent microscopy. Bars: 20 μm (A, C), 10 μm (B).The ocelloid is located at the left side of a cell seen in ventral view according to the orientation proposed by Kofoid and Swezy (A). The nucleus was ellipsoidal and at the opposite side of ocelloid, in the anterior of the cell (B). These indices are consistent with the taxonomic criteria of the type specimen that was identified as Erythropsidinium agile. From the serial pictures of autofluorescence in the retinal body (C), lens-effect of the hyalosome can be observed. The front image of the retinal body is larger than side view. Date: 3 March 2015. Source: Fig. 1 at
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0118415 Function and Evolutionary Origin of Unicellular Camera-Type Eye Structure. PLOS ONE 10(3),
PMID 25734540,
PMC 4348419,
doi:10.1371/journal.pone.0118415 . Author: Shiho Hayakawa, Yasuharu Takaku, Jung Shan Hwang, Takeo Horiguchi, Hiroshi Suga, Walter Gehring, Kazuho Ikeo, Takashi Gojobori. Other versions:
This file has multiple extracted images:
File:Pone.0118415.g001A.tif Plos one hayakawa erythropsidinium ocelloid EM fig1b.png.