Ultrastructure and LSU rDNA-based phylogeny of Peridinium lomnickii and description of Chimonodinium gen. nov. (Dinophyceae) [0.03%]
基于LSU rDNA的系统发育和拟Peridinium lomnickii的超微结构及异藻血群新属奇monodinium的描述
Sandra C Craveiro,António J Calado,Niels Daugbjerg et al.
Sandra C Craveiro et al.
Several populations of Peridinium lomnickii were examined by SEM and serial section TEM. Comparison with typical Peridinium, Peridiniopsis, Palatinus and Scrippsiella species revealed significant structural differences, congruent with phylo...
O Roger Anderson
O Roger Anderson
Ovalopodium desertum n. sp. and the phylogenetic relationships of Cochliopodiidae (Amoebozoa) [0.03%]
卵形卵足虫新种(Ovalopodium desertum n. sp.)及科氏卵足虫科(Cochliopodiidae)的系统发育关系
Alexander Kudryavtsev,Claudia Wylezich,Jan Pawlowski
Alexander Kudryavtsev
An amoeba isolated from a weakly saline semi-desert pond in Kazakhstan (Central Asia) resembles a small Cochliopodium in the light microscope, but has a dorsal fibrous cell coat without scales. Thus it can be identified morphologically as a...
Inactivation of a macronuclear intra-S-phase checkpoint in Tetrahymena thermophila with caffeine affects the integrity of the micronuclear genome [0.03%]
咖啡因通过使 tétrahymena thermophila 宏核仁内S期检验点失活而影响其微核基因组的完整性
Andrzej Kaczanowski,Mauryla Kiersnowska
Andrzej Kaczanowski
Aphidicolin (APH), an inhibitor of DNA polymerase α, arrested cell divisions in Tetrahymena thermophila. Surprisingly, low concentrations of APH induced an increase of macronuclear DNA content and cell size in non-dividing cells. In spite ...
Physiological and molecular evidence that environmental changes elicit morphological interconversion in the model diatom Phaeodactylum tricornutum [0.03%]
环境变化诱发模型硅藻三角褐指藻发生形态互变的生理和分子证据
Alessandra De Martino,Ana Bartual,Anusuya Willis et al.
Alessandra De Martino et al.
Over the last decades Phaeodactylum tricornutum has become a model to study diatom biology at the molecular level. Cells have the peculiarity to be pleiomorphic and it is thought that this character is triggered by culture conditions, altho...
New insights into the excystation process and oocyst morphology of rodent Eimeria species [0.03%]
啮齿动物艾美耳属球虫裂殖和卵囊形态的新认识
Stefanie Wiedmer,Joerg Stange,Thomas Kurth et al.
Stefanie Wiedmer et al.
In this study, the mechanism of excystation of the rodent parasites Eimeria nieschulzi, from rats, and Eimeria falciformis, from mice, was investigated. In vitro, oocysts of both species are susceptible to the protease pepsin, and sporocyst...
Taxonomy and phylogeny of a new kleptoplastidal dinoflagellate, Gymnodinium myriopyrenoides sp. nov. (Gymnodiniales, Dinophyceae), and its cryptophyte symbiont [0.03%]
一种新的噬藻绿藻顶复鞭毛虫Genodinium myriopyrenoides的新种及其共生隐藻的分类和系统发育关系
Haruyo Yamaguchi,Takeshi Nakayama,Atsushi Kai et al.
Haruyo Yamaguchi et al.
A new kleptoplastidal dinoflagellate, Gymnodinium myriopyrenoides sp. nov., was described using light microscopy, electron microscopy and phylogengetic analysis based on partial LSU rDNA sequences. Cells were dorsiventrally flattened, elong...
Lotharella reticulosa sp. nov.: a highly reticulated network forming chlorarachniophyte from the Mediterranean Sea [0.03%]
地中海网状结构形成绿藻洛塔雷拉的新种lotharella reticulosa sp. nov.
Shuhei Ota,Daniel Vaulot
Shuhei Ota
A new chlorarachniophyte Lotharella reticulosa sp. nov. is described from a culture isolated from the Mediterranean Sea. This strain is maintained as strain RCC375 at the Roscoff Culture Collection, France. This species presents a multiphas...
Complete structure of nuclear rDNA of the obligate plant parasite Plasmodiophora brassicae: intraspecific polymorphisms in the exon and group I intron of the large subunit rDNA [0.03%]
十字花科植物寄生专性胞内虫核型rDNA完整序列及其大亚单位rDNA外显子和Ⅰ类内含子的种内多态性分析
Rieko Niwa,Ai Kawahara,Hiroharu Murakami et al.
Rieko Niwa et al.
Plasmodiophora brassicae is a soil-borne obligate intracellular parasite in the phylum Cercozoa of the Rhizaria that causes clubroot disease of crucifer crops. To control the disease, understanding the distribution and infection routes of t...
Elizabeth C Ruck,Edward C Theriot
Elizabeth C Ruck
One lineage of pennate diatoms has a slit through the siliceous cell wall, called a "raphe," that functions in motility. Raphid pennate diatoms number in the perhaps tens of thousands of species, with the diversity of raphe forms potentiall...