1887

Abstract

The morphology and ciliature of a new freshwater ciliate, sp. nov., isolated from an artificial pond in Qingdao, PR China, were investigated using live observation and silver staining methods. The main features separating sp. nov. from its congeners are as follows: a broad elliptical body that is slightly pointed at the posterior end, four ophryokineties, one or two spherical micronuclei of a ‘compact’ type, a dorsally positioned contractile vacuole, and peniculi 1–3 each with five kinetosome rows though the left-most two rows in peniculus 3 are extremely shortened (with only two or three kinetosomes each). Additionally, an improved diagnosis of is provided. Phylogenetic analyses based on the small subunit ribosomal RNA (SSU rRNA) gene show that sp. nov. clusters with , , and . These five species group with , and rather than with other species, causing polyphyly of the genus .

Funding
This study was supported by the:
  • Natural Science Foundation of China (Award 32100404)
    • Principle Award Recipient: MingjianLiu
  • China Postdoctoral Science Foundation Grant (Award 2020M672141)
    • Principle Award Recipient: MingjianLiu
  • Fundamental Research Funds for the Central Universities
    • Principle Award Recipient: MiaoMiao
  • Natural Science Foundation of China (Award 32070432)
    • Principle Award Recipient: MiaoMiao
  • Natural Science Foundation of China (Award 32030015)
    • Principle Award Recipient: ApplicableNot
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2021-10-25
2024-03-29
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