کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6386245 1626932 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
First evidence of cell deformation occurrence during a Dinophysis bloom along the shores of the Gulf of Tunis (SW Mediterranean Sea)
ترجمه فارسی عنوان
اولین شواهد مربوط به تغییر شکل سلولی در طی شکوفه دینوفیز در امتداد ساحل خلیج تونس (دریای مدیترانه)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
چکیده انگلیسی


- First evidence of Dinophysis cell deformations.
- Observations during one seasonal and 5 diel cycles.
- Dinophysis cf. acuminata and D. sacculus bloomed in the same period.
- These have different strategies and patterns of cell division.

Never before observed or cited in Dinophysis studies, deformations in Dinophysis acuminata and Dinophysis sacculus are reported throughout their cellular division phases (cytokinesis, and sulcal list regeneration) in 5 in situ cell cycle studies in the Punic harbors of Carthage (northern Tunisia). Two types of deformation were observed: invaginations in the ventral and dorsal margin and protuberances at the base of the left sulcal list. No virus or bacteria were detected with Syber green stain. In situ division rates (μ) varied among seasons and stations for the same species. D. acuminata exhibited moderate (0.22 day−1) to high (0.68 day−1) μ rates which were however very low (0.02-0.17 day−1) for D. sacculus in autumn and moderate (0.21-0.35 day−1) in late spring. In 2009 the seasonal distribution of Dinophysis indicates maximum Dinophysis cf. ovum abundance in March and a high number of D. acuminata in early June, while in 2010 maximum abundance of the same species was found in mid-June.Molecular and genetic studies and staining with specific fluorescent strains should be addressed to hopefully explain these Dinophysis cell deformations during their in situ division.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Harmful Algae - Volume 39, October 2014, Pages 191-201
نویسندگان
, , , , , ,