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Tokiko Saigo on Muck Rack

Tokiko Saigo

As seen in: BioRxiv
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Articles

Comparative study of gamma radiation tolerance between desiccation-sensitive and desiccation-tolerant tardigrades

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By Tokiko Saigo, Katsuya Satoh, Takekazu Kunieda
| BioRxiv
Abstract Tardigrades are small metazoans renowned for their exceptional tolerance against various harsh environments in a dehydrated state. Some species exhibited an extraordinary tolerance against high-dose irradiation even in a hydrated state. Given that natural sources of high radiation are rare, the selective pressure to obtain such a high radiotolerance during evolution remains elusive.
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A New Morphological Type of Volvox from Japanese Large Lakes and Recent Divergence of this Type and V. ferrisii in Two Different Freshwater Habitats

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By Hisayoshi Nozaki, Noriko Ueki, Nanako Isaka, Tokiko Saigo
| PLOS
Volvox sect. Volvox is characterized by having unique morphological characteristics, such as thick cytoplasmic bridges between adult somatic cells in the spheroids and spiny zygote walls. Species of this section are found from various freshwater habitats. Recently, three species of Volvox sect. Volvox originating from rice paddies and a marsh were studied taxonomically based on molecular and morphological data of cultured materials.
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