نتایج جستجو برای: heterosigma sp
تعداد نتایج: 120334 فیلتر نتایج به سال:
This paper presents a new description of the morphology of the planktonic dinoflagellate Stoeckeria algicida n. gen., n. sp. and a report of the sequence of the small subunit rDNA (SS rDNA) from cultured cells. The vegetative biflagellated cell, gametes, triflagellated planozygotes, and cyst stages of this heterotrophic species were observed in cultures. The vegetative biflagellated cells are o...
Background: Widespread common carp (Cyprinus carpio) mortalities have been recorded in Khuzestan province fish farms in recent years. In summer of 2017 two cases of harmful algal bloom were encountered that led to massive mortality in common carp in Khuzestan, Iran. Aims: The aim of this study was to identify the possible etiologic agent of two mortali...
We report the complete genome sequence of Heterosigma akashiwo virus strain 53. The virus is a member of the Phycodnaviridae, one of the families regarded as giant double-stranded DNA viruses. The 274,793-bp genome contained 246 protein-coding and 3 tRNA-coding sequences.
Chloroplast Genome Sequences of Seven Strains of the Bloom-Forming Raphidophyte Heterosigma akashiwo
We report here the complete chloroplast genome sequences of seven strains of the bloom-forming raphidophyte Heterosigma akashiwo These ~160-kb sequences contain 124 protein-, 6 rRNA-, and 34 tRNA-coding sequences. Notable sequence variations were observed among these seven sequenced and two previously characterized strains.
We report here the complete mitochondrial genome sequences of four strains of bloom-forming raphidophytes from Heterosigma akashiwo These 39-kb sequences contain 42 protein-, two rRNA-, and 26 tRNA-coding sequences. Notable sequence variations were observed among these four newly sequenced and three previously characterized strains, suggesting their potential usage as strain-specific markers.
Heterosigma akashiwo is a golden-brown unicellular phytoflagellate with high potential to create harmful algal blooms (HABs) and kill fish in many coastal regions worldwide, resulting significant economic losses. Climate change global warming have been introduced as triggers that impact the frequency severity of H. other bloom-forming species past decades. In this review paper, author tried bri...
Motility is a key trait that phytoplankton utilize to navigate the heterogeneous marine environment. Quantifying both intra- and inter-specific variability in trait distributions is key to utilizing traits to distinguish groups of organisms and assess their ecological function. Because examinations of intra-specific variability are rare, here we measured three-dimensional movement behaviors and...
The ability of harmful algal species to form dense, nearly monospecific blooms remains an ecological and evolutionary puzzle. We hypothesized that predation interacts with estuarine salinity gradients to promote blooms of Heterosigma akashiwo (Y. Hada) Y. Hada ex Y. Hara et M. Chihara, a cosmopolitan toxic raphidophyte. Specifically, H. akashiwo's broad salinity tolerance appears to provide a r...
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