Evidence map›Paper›PMID 40536273›Full record

ArticleJournal of phycology2025

Reminiscent of the pre-diatom? A hitherto undescribed scaly bolidophyte Lepidoparma frigida gen. et sp. nov. in a new order Lepidoparmales based on morphology, phylogeny, and ecology.

Shiho Kamakura, Kazumasa Yamada, Eldrin D L R Arguelles, Akira Kuwata, Tamotsu Nagumo, Masakazu Takahashi, Ken Sawada, Mutsuo Ichinomiya, Shinya Sato

Abstract read
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In one paragraph

Article in Journal of phycology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Shiho KamakuraKYOUSEI Science Center for Life and Nature, Nara Women's University, Nara, Japan.ORCID 0000-0003-0251-6900
Kazumasa YamadaFaculty of Marine Science and Technology, Fukui Prefectural University, Fukui, Japan.ORCID 0000-0002-1655-4011
Eldrin D L R ArguellesGraduate School of Bioscience and Biotechnology, Fukui Prefectural University, Fukui, Japan.ORCID 0000-0003-1856-670X
Akira KuwataShiogama Field Station, Fisheries Resources Institute, Japan Fisheries Research and Education Agency, Shiogama, Miyagi, Japan.ORCID 0000-0002-7359-7421
Tamotsu NagumoDepartment of Biology, The Nippon Dental University, Tokyo, Japan.
Masakazu TakahashiFaculty of Bioscience and Biotechnology, Fukui Prefectural University, Fukui, Japan.ORCID 0009-0007-4127-9342
Ken SawadaDepartment of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan.ORCID 0000-0003-3298-5716
Mutsuo IchinomiyaFaculty of Environmental & Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto, Japan.ORCID 0000-0002-3379-1561
Shinya SatoFaculty of Marine Science and Technology, Fukui Prefectural University, Fukui, Japan.ORCID 0000-0001-6649-6975

Funding

Japan Society for the Promotion of Science 16H06279Japan Society for the Promotion of Science 16K07489Japan Society for the Promotion of Science 17H03724Japan Society for the Promotion of Science 21A402Japan Society for the Promotion of Science 23K05398The Canon FoundationThe Fukui Prefectural University for Strategic Issue Research Promotion
6 · The paper itself

Abstract

The class Bolidophyceae, which consists of small phytoplankton distributed worldwide, is the sister group of diatoms. This class has contained only one order, the Parmales, until now. In this study, we established a new order Lepidoparmales Kamakura & S.Sato ord. nov. and a new family Lepidoparmaceae Kamakura & S.Sato fam. nov., within the Bolidophyceae, and described Lepidoparma frigida Kamakura & S.Sato gen. et sp. nov. from the Sea of Okhotsk. We conducted a comprehensive comparison of L. frigida with diatoms and other parmaleans through analysis of its molecular phylogeny, morphology, ultrastructure, ontogeny, distribution, and lipid composition. The cell surface of L. frigida is covered with numerous siliceous scales with radial patterns similar to centric diatom valves; this character distinguishes it from other known parmaleans. Intriguingly, its appearance resembles the hypothesized "pre-diatom," which was proposed to be a precursor to primitive diatoms. The discovery and characterization of L. frigida will provide valuable insights into the evolutionary processes of both diatoms and bolidophytes and shed light on their common ancestor.

Indexed as

DiatomsFatty AcidsGenome, ChloroplastJapanPacific OceanPhylogenyFatty Acidsbiomineralizationmarine phytoplanktonpicoplanktonsilica mineralizationtaxonomy

Identifiers

PMID40536273
PMCPMC12351369

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.