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Updated: Feb 28, 2026

Obtaining Hemocytes from the Hawaiian Bobtail Squid Euprymna scolopes and Observing their Adherence to Symbiotic and Non-Symbiotic Bacteria

Obtaining Hemocytes from the Hawaiian Bobtail Squid Euprymna scolopes and Observing their Adherence to Symbiotic and Non-Symbiotic Bacteria

Published on: February 11, 2010

ハワイ産新規食作用ユーグレナの系統ゲノム配置と形態学的記述：Hokulea waialensis n. gen. et sp

Alfredo Rodriguez Ruiz¹, Maia V Palka², Gordon Lax^2,3

¹Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.

The Journal of eukaryotic microbiology

|February 26, 2026

Abstract:

Euglenids are a diverse group of flagellated protists that include phagotrophic, osmotrophic, and phototrophic lineages. Understanding the phylogenetic relationships of phagotrophic euglenids is crucial in understanding euglenid evolution. Yet many relationships within euglenids remain unclear, and further resolution requires extensive sampling, particularly from the deep-branching, paraphyletic group known as "ploeotids". Improved resolution of evolutionary relationships among ploeotid taxa is necessary to elucidate the origin and diversification of complex ultrastructural traits (e.g., pellicle and feeding apparatus). Here, we isolated, cultivated and characterized a novel freshwater "ploeotid" species named Hokulea waialensis n. gen. et sp. using light and scanning electron microscopy, single-cell sequencing, and phylogenomic analyses. This new species is relatively small (~10 μm long) compared to related euglenids and shares several morphological traits with related species of Alistosa. Both single and multigene phylogenetic reconstructions from single amplified genome data show that Hokulea waialensis n. gen. et sp. is closely related to several environmental small subunit ribosomal DNA (SSU rDNA) sequences, and more broadly to Lentomonas and Decastava.

キーワード:

SSU rDNA ユーグレノzoa マルチジーン系統ゲノミクス原生生物シングル増幅ゲノム超構造

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Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Published on: April 20, 2012

Colonization of Euprymna scolopes Squid by Vibrio fischeri

Colonization of Euprymna scolopes Squid by Vibrio fischeri

Published on: March 1, 2012

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