کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4545196 1626919 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cryptophyte gene regulation in the kleptoplastidic, karyokleptic ciliate Mesodinium rubrum
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Cryptophyte gene regulation in the kleptoplastidic, karyokleptic ciliate Mesodinium rubrum
چکیده انگلیسی

Photosynthesis in the ciliate Mesodinium rubrum is achieved using a consortium of cryptophyte algal organelles enclosed in its specialized vacuole. A time-series microarray analysis was conducted on the photosynthetic ciliate using an oligochip containing 15,654 primers designed from EST data of the cryptophyte prey, Teleaulax amphioxeia. The cryptophycean nuclei were transcriptionally active over 13 weeks and approximately 13.5% of transcripts in the ciliate came from the sequestered nuclei. The cryptophyte nuclei and chloroplasts could divide in the ciliate, which were loosely synchronized with host cell division. A large epigenetic modification occurred after the cryptophyte nuclei were sequestered into the ciliate. Most cryptophyte genes involved in the light and dark reactions of photosynthesis, chlorophyll assimilation, as well as in DNA methylation, were consistently up-regulated in the ciliate. The imbalance of division rate between the sequestered cryptophyte nuclei and host nuclei may be the reason for the eventual cessation of the kleptoplastidy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Harmful Algae - Volume 52, February 2016, Pages 23–33
نویسندگان
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