ライフサイエンスコーパス: diatom

1 rtions of labile (reactive) iron than intact diatoms.

2 upported phytoplankton blooms of filamentous diatoms.

3 from the shells of microscopic algae called diatoms.

4 ex stress-related (LHCSR) in green algae and diatoms.

5 p a numerical model of the CCM of cold water diatoms.

6 tests is insufficient to explain the rise of diatoms.

7 cilitating a quantitative comparison between diatoms.

8 such as the Stramenopiles, which include the diatoms.

9 one of the most intriguing mysteries of the diatoms.

10 into natural waters stimulates the growth of diatoms.

11 and microscopically counted chytrid-infected diatoms.

12 indrus, based on a comparison with temperate diatoms.

13 eriments often result in blooms dominated by diatoms [2], indicating that diatoms have adaptations th

14 In diatoms, a dominant phylum in phytoplankton, NO was repo

15 Diatoms, a major group of photosynthetic microalgae, hav

16 iversification rates and species richness of diatoms, a mechanistic understanding of diatom life cycl

17 millennium and fell in concert with reduced diatom abundance and warming water.

18 nted elevated phytoplankton productivity and diatom abundance within the eddy centre with coincident

19 P, while dry years showed lower chl-a, lower diatom abundance, and decreased NPP.

20 Wet years showed higher chl-a, higher diatom abundance, and increased NPP, while dry years sho

21 correlated with pigment-based indicators of diatom abundance, supporting developing hypotheses that

22 Cosedimentation with diatoms accumulated contaminants that were dispersed in

23 tom resource utilization and how cooccurring diatoms adjust their cellular physiology to partition th

24 Co-cultured diatoms also downregulated lipid biosynthesis genes and

25 cated in the endoplasmic reticulum, which in diatoms also represents the outermost plastid membrane.

26 metabolomes and expressed proteomes of both diatoms, although the diatom that co-occurs with K. brev

27 Here we show that gene flow in a diatom, an ecologically important eukaryotic microbe, is

28 n glaciers as far back as 4.2 Myr ago, while diatom and C37:4 alkenone records show a long-term trend

29 agnetic susceptibility, oxygen isotopes, and diatom and cladoceran assemblages in a sediment core fro

30 ctra showed in vivo absorption signatures of diatom and cyanobacterial photopigments, which were conf

31 ized ecological niches for 87 North Atlantic diatom and dinoflagellate taxa and project changes in sp

32 The diatom and filamentous algal community was also more poo

33 rtium associated with a globally distributed diatom and find that a Sulfitobacter species promotes di

34 ed oxygen and silicon isotope measurement of diatom and radiolarian opal, in combination with numeric

35 scribe the first nuclear episomal vector for diatoms and a plasmid delivery method via conjugation fr

36 We examined the relationships between diatoms and bacteria at the community and taxon levels.

37 arine phytoplankton, such as the silicifying diatoms and calcifying coccolithophores, plays an import

38 gi and ciliates, and decreased abundances of diatoms and cercozoans.

39 very different forms of biomineralization in diatoms and coccolithophores.

40 Copepods derive these PUFAs by ingesting diatoms and flagellated microplankton respectively.

41 groups in simulated blooms were unique, with diatoms and haptophytes significantly (95% confidence) s

42 cation following DSW amendment, differed for diatoms and haptophytes, reflecting the long-standing pa

43 nt was mechanistically linked to Fe-stressed diatoms and high mesozooplankton fecal pellet production

44 e protein sequence was found in other marine diatoms and may play an important role in their response

45 nkton community shifts to lightly-silicified diatoms and non-silicifying plankton at the onset of sil

46 Diatoms and other phytoplankton play a crucial role in t

47 uence on their competitive interactions with diatoms and other siliceous phytoplankton.

48 Here we use a mathematical model in which diatoms and radiolarians compete for silicic acid to sho

49 al molecular insights into the resilience of diatoms and their ecological success, and opens up novel

50 ightly coupled to the cell cycle in a marine diatom, and that arresting cells in the G1 phase leads t

51 tative plankton species, including copepods, diatoms, and dinoflagellates, all found in the North Atl

52 Diatoms are amongst the most successful phytoplankton gr

53 Diatoms are an important group of eukaryotic algae with

54 mechanisms of carbon concentration in marine diatoms are controversial.

55 Diatoms are highly abundant unicellular algae that often

56 Diatoms are highly diverse and ubiquitous species of phy

57 polyamines, and other biomolecules found in diatoms are involved in the assembly of a large number o

58 Diatoms are known for their intricate, silicified cell w

59 Diatoms are one of the most ecologically successful clas

60 Diatoms are one of the most productive and successful ph

61 - and micropatterned biosilica cell walls of diatoms are remarkable examples of biological morphogene

62 Marine diatoms are silica-precipitating microalgae that account

63 Diatoms are single-celled, photosynthetic, bloom-forming

64 When diatoms are stressed for inorganic nitrogen they remodel

65 Unicellular eukaryotic diatoms are the main primary producers in this environme

66 Diatoms are ubiquitous marine photosynthetic eukaryotes

67 Diatoms are unicellular algae that accumulate significan

68 Diatoms are unicellular microalgae whose cell walls are

69 Diatoms are widely used as bioindicators for the assessm

70 Diatoms are widespread in aquatic ecosystems where they

71 calculate that the yields obtained by using diatoms as a production platform are theoretically suffi

72 d qPCR revealed a dramatic transition in the diatom-associated bacterial community, defined initially

73 w estimate of diversity of marine planktonic diatoms at 4,748 operational taxonomic units (OTUs).

74 Diatoms (Bacillariophyta) constitute one of the most div

75 hore epiphytes were dominated by filamentous diatoms (Bacillariophyta), confined to the apex of the f

76 Diatoms (Bacillarophyceae) are photosynthetic unicellula

77 Here, we used a natural diatom-bacterial assemblage to investigate the diversity

78 Here we present the first diatom-based high-resolution quantitative reconstruction

79 d (DA), an excitatory amino acid produced by diatoms belonging to the genus Pseudo-nitzschia, is a gl

80 ow that a source of diene II is the sympagic diatom Berkeleya adeliensis Medlin.

81 ganic monomeric aluminum, all beneficial for diatom biodiversity and guilds producing high biomass.

82 ted in photosynthetic impairment and loss of diatom biomass in proportion to the supplied AgNP dose.

83 high density Ag NPs inside the nanopores of diatom biosilica, which is not achievable by traditional

84 organic matrices) are general components of diatom biosilica.

85 This paper explores the potential of diatom-biosilica as a model tool to assist in the task o

86 The results suggest that diatom-biosilica is non-cytotoxic to J774.2 macrophage c

87 The overall findings suggest diatom-biosilica offers a unique platform for in-depth i

88 totoxicity and pro-inflammatory reactions to diatom-biosilica.

89 Classically, the diatom biotic indices are based on the relative abundanc

90 th the hypothesis that RNA viruses influence diatom bloom dynamics in Antarctic waters.

91 Diatom bloom events were observed in all enclosures, wit

92 ol and an abundant microbial metabolite in a diatom bloom in the eastern North Pacific Ocean.

93 ndance and catalytic rates during an intense diatom bloom in the Western Antarctic Peninsula (WAP) an

94 ugust/September 2010, an exceptionally large diatom bloom sedimentation event coincided with elevated

95 e nonmotile, oligotrophic populations during diatom blooms and bloom collapse conditions, resulting i

96 selective silicon sequestration there limits diatom blooms elsewhere and consequently the biotic carb

97 These trophically important diatom blooms have been replaced by widespread blooms of

98 ences for the spatial and temporal extent of diatom blooms, thus impacting ecosystem productivity and

99 bilization (prior to biosilica formation) in diatoms by investigating possible scenarios of uncharged

100 d find that a Sulfitobacter species promotes diatom cell division via secretion of the hormone indole

101 Diatom centromere sequences contain low-GC content regio

102 ing nonnative sequences can also function as diatom centromeres.

103 omeres can maintain episomes and recruit the diatom centromeric histone protein CENH3, suggesting non

104 t spring and to an ssDNA virus infecting the diatom Chaetoceros.

105 Diatoms co-occur with specific bacterial taxa, but the m

106 a ice samples revealed chytrids parasitizing diatoms collected across the Arctic that notably infecte

107 al data associated with elementary atom plus diatom collisions.

108 lso changed the composition of bacterial and diatom communities in biofilms at day 21 and increased c

109 gical interactions between K. brevis and two diatom competitors, Asterionellopsis glacialis and Thala

110 levate disease incidence on algae and reduce diatom concentrations.

111 Diatoms constitute a major phylum of phytoplankton biodi

112 y species with resistant cell walls, such as diatoms, continued to be present.

113 rbon pump other than broad paradigms such as diatoms contributing disproportionally to carbon export.

114 insights into light manipulation regimes for diatom cultivation that will help to maximize production

115 ing seawater amended with cyanobacteria- and diatom-derived DOM, metatranscriptomes had similar funct

116 comparing seawater and seawater amended with diatom-derived DOM, metatranscriptomes revealed pronounc

117 mediate programmed cell death in response to diatom-derived polyunsaturated aldehydes.

118 Bacterial transformation of this diatom-derived sulfonate represents a previously unident

119 Diatoms developed a complementary and/or alternative tun

120 ean circulation choke points in constraining diatom distribution and diversity.

121 We also observed high diatom diversity in the open ocean, suggesting that diat

122 ctic char (Salvelinus alpinus) and increased diatom diversity point to a positive ecosystem response

123 in biomass, but algal class composition and diatom diversity were similar.

124 In a typical bloom, diatoms dominate initially, transitioning over several w

125 y producers to OA, especially in waters with diatom-dominated phytoplankton assemblages.

126 The North Atlantic is characterized by diatom-dominated spring blooms that results in significa

127 knowledge of the molecular underpinnings of diatom ecological success is, however, still very incomp

128 enables stable episome replication in these diatoms even in the absence of antibiotic selection and

129 f a complex exchange of nutrients, including diatom-excreted organosulfur molecules and bacterial-exc

130 Diatoms exhibit high solar energy harvesting efficiency

131 Thus, the diatom ferritin is optimized for initial Fe(2+) oxidatio

132 The dominant diatoms, flagellates and picophytoplankton varied dramat

133 ductivity based on the composition of fossil diatom floras with organic carbon burial off Oregon in t

134 s the power of genome engineering to harness diatoms for biofuel production.

135 Cyanobacteria and diatoms formed distinctly coloured zones and were closel

136 cing (NGS) approach to identify and quantify diatoms found in environmental DNA and RNA samples.

137 iments were performed with the psychrophilic diatom Fragilariopsis cylindrus.

138 nd in laboratory cultures of a psychrophilic diatom (Fragilariopsis cylindrus).

139 tion was observed in dark anoxic cultures of diatoms (Fragilariopsis sp.) and a chlorophyte (Pyramimo

140 into the genome evolution of a cold-adapted diatom from the Southern Ocean, Fragilariopsis cylindrus

141 d siliceous shells (frustules) of freshwater diatoms from a well-dated undisturbed sediment core in a

142 formation of TNT on the scFv-functionalized diatom frustule biosilica had a half-saturation binding

143 as bound to the anti-TNT scFv-functionalized diatom frustule biosilica, the PL emission from the bios

144 mplex formation with antibody-functionalized diatom frustule biosilica.

145 The diatom frustule is an intricately nanostructured, highly

146 te biosilica nanostructures that compose the diatom frustule is not yet possible.

147 roless-deposited Ag seeds at nanometer sized diatom frustule surface, which provides high density hot

148 roplets with pinpoint accuracy into a single diatom frustule with dimension around 30micromx7micromx5

149 Raman scattering (SERS) substrate based on a diatom frustule with in-situ synthesized silver nanopart

150 stigate the light-trapping characteristic of diatom frustule.

151 Abundances of freshwater diatom frustules exported to Eel Canyon sediment from 19

152 bined with the strong hydrophilic surface of diatom frustules is capable of concentrating the analyte

153 In simulation, placing the diatom frustules on the surface of the light-absorption

154 te the light-trapping characteristics of the diatom frustules.

155 ances with the photonic crystal structure of diatom frustules.

156 euphotic zone, have been analyzed to explore diatom global diversity and community composition.

157 Responses of the diatom, haptophyte, and dinoflagellate functional groups

158 ms dominated by diatoms [2], indicating that diatoms have adaptations that allow survival in iron-lim

159 How diatoms have adapted to this extreme environment is larg

160 w the reconstruction of changes occurring in diatoms in a key phase of their life cycle, providing hi

161 ach for identification and quantification of diatoms in environmental samples, opening new avenues to

162 es was critical to the subsequent success of diatoms in marine ecosystems over the last 40 My and sug

163 that coccolithophores are able to outcompete diatoms in Si-depleted waters, which can contribute to t

164 s is essential for the ecological success of diatoms in the marine ecosystem.

165 roportion of planetary primary production by diatoms in the modern oceans is roughly equivalent to th

166 The ecological prominence of diatoms in the ocean environment largely results from th

167 ave contributed to the ecological success of diatoms in the ocean.

168 a contentious debate about the origin of the diatoms in the TAMs and their link to EAIS history, supp

169 The CCM of diatoms in the Western Antarctic Peninsula functions wit

170 Marine diatoms in tillites along the Transantarctic Mountains (

171 ive species were mainly centrics and araphid diatoms (in this study, Thalassiosirales and Fragilarial

172 ieve high carboxylation rates, psychrophilic diatoms increased Rubisco abundance to c. 8% of biomass

173 in order to compare the values of the Swiss Diatom Index (DI-CH) computed either by microscopic quan

174 relative abundance of analyzed species, the diatom index shows a significant correlation between mor

175 wn N and P metabolic pathways varied between diatoms, indicating apparent differences in resource uti

176 omes, three of which had features similar to diatom-infecting viruses.

177 community and particularly the prominence of Diatoms inferred from silicate drawdown, drive interannu

178 aryotic phytoplankton, and large portions of diatom iron starvation transcriptomes are genes encoding

179 g that the HCB community associated with the diatom is tuned to specializing in the degradation of PA

180 t the allocation of carbon and reductants in diatoms is controlled by a feedback mechanism between in

181 led frustules) of unicellular algae known as diatoms is one of the most intriguing mysteries of the d

182 ree (or four) relatively minor (<5%) sea ice diatoms isolated from mixed assemblages collected from t

183 The main light-harvesting complexes of diatoms, known as fucoxanthin-chlorophyll proteins (FCPs

184 sis with high-light acclimation in the outer diatom layer, and low-light acclimation in the underlyin

185 s of diatoms, a mechanistic understanding of diatom life cycle control is virtually lacking.

186 Here we show that an expanded family of diatom-like silicon transporters (SITs) are present in b

187 diversity in the open ocean, suggesting that diatoms may be more relevant in these oceanic systems th

188 The model also explored unusual features of diatom metabolism, such as the presence of lower glycoly

189 ransporter systems, we hypothesize that nine diatom metabolites supported the majority of bacterial g

190 Here we use diatom microalgae-derived nanoporous biosilica to delive

191 used transcriptional patterns in a bacterial-diatom model system based on vitamin B12 auxotrophy as a

192 rate of isotherm movement), the range of the diatoms moved much more slowly.

193 ccus anophagefferens (Quantuck Bay, NY), and diatoms (Narragansett Bay, RI) show active infections by

194 nvestigate the cellular and genetic basis of diatom NO3(-) assimilation, we generated a knockout in t

195 Diatoms often inhabit highly variable habitats where the

196 and isotopologues) with atoms (F, Cl, O) and diatoms (OH), with inclusion of also rotational mode spe

197 Enhanced diatom opal burial in Sargasso Sea sediments indicates t

198 o the mineralization of silica cell walls of diatom organisms.

199 chrophytes, a major group of algae including diatoms, pelagophytes and kelps, that possess plastids d

200 as few as two or three key OTUs, i.e. large diatoms, Phaeocystis, and mixotrophic/phagotrophic dinof

201 We used the diatom Phaeodactylum tricornutum as a model system to ex

202 reductase gene (NR-KO) of the model pennate diatom Phaeodactylum tricornutum In NR-KO cells, N-assim

203 yzed the global transcriptome changes of the diatom Phaeodactylum tricornutum in response to P fluctu

204 Ostreococcus tauri (Mamiellophyceae) and the diatom Phaeodactylum tricornutum produced C21 hexaene, w

205 Here we show that the marine diatom Phaeodactylum tricornutum utilizes ISIP2a to conc

206 n this study, the transcriptome of the model diatom Phaeodactylum tricornutum was profiled during the

207 itation to identify centromeres of the model diatom Phaeodactylum tricornutum We observed 25 unique c

208 for the glycerolipidome of the marine model diatom Phaeodactylum tricornutum, a necessary prerequisi

209 Here we show that a population of the model diatom Phaeodactylum tricornutum, after growing under el

210 onal modifications on histones of the marine diatom Phaeodactylum tricornutum, including eight novel

211 le modifications of the genome of the marine diatom Phaeodactylum tricornutum, using both meganucleas

212 sed to induce oxidative stress in the marine diatom Phaeodactylum tricornutum.

213 via conjugation from Escherichia coli to the diatoms Phaeodactylum tricornutum and Thalassiosira pseu

214 ty consisting of well-characterized cultured diatoms (Phaeodactylum tricornutum and Thalassiosira wei

215 to G1-phase cell cycle arrest in the marine diatom, Phaeodactylum tricornutum, by binding to two cyc

216 EFMs in a genome-scale metabolic model of a diatom, Phaeodactylum tricornutum, identified approximat

217 is influenced by nitrogen stress in a model diatom, Phaeodactylum tricornutum.

218 model of a fully sequenced and transformable diatom: Phaeodactylum tricornutum.

219 s isolated from cultured cells of the marine diatom Pinnularia sp. and functionalized with a single c

220 organisms, including bacteria, fungi, algae, diatoms, plants, insects, and fish.

221 Diatom plastids show several peculiarities when compared

222 cally adapted nucleotide transport system in diatom plastids.

223 uild their biomineralized cell walls, marine diatoms precipitate 240 x 10(12) mol Si per year, which

224 green algae (Chlorophyta) and single-celled diatoms (principally Cocconeis spp.), which were high li

225 ic acid (dSi) availability frequently limits diatom productivity and influences species composition o

226 nd Aurora basins that were conducive to high diatom productivity and rapid accumulation of diatomaceo

227 hese elevated silica fluxes may explain high diatom productivity observed during the last glacial-int

228 yll a by up to approximately 40-fold, led to diatom proliferation, and reduced community diversity.

229 Ferritin from the marine pennate diatom Pseudo-nitzschia multiseries (PmFTN) plays a key

230 Using the marine planktonic diatom Pseudo-nitzschia multistriata, we investigated th

231 There was a stepwise effect of diatom quantity on its mineralisation although mineralis

232 ynamics were reconstructed using pollen, and diatom records provided measures of primary production f

233 Here we show that diatoms regulate ATP/NADPH through extensive energetic e

234 ffect the fate of organic carbon produced by diatoms remains an open question.

235 ch highlights the molecular underpinnings of diatom resource utilization and how cooccurring diatoms

236 Diatom responses to AgNP, free Ag(I) species, and dialys

237 over time and differed significantly between diatoms, resulting in opposite transcriptional responses

238 In psychrophilic diatoms, Rubisco must be almost fully active and near CO

239 ication researchers have sought to mimic the diatom's biosilica production capabilities by engineerin

240 lum tricornutum as a model system to explore diatom's response to iron limitation and its interplay w

241 terize a pentalysine peptide, derived from a diatom's silaffin protein.

242 cid, synthesized by the bacterium using both diatom-secreted and endogenous tryptophan.

243 We show that benthic diatoms selectively perceive and behaviourally react to

244 ng pheromone (SIP(+)) of the benthic pennate diatom Seminavis robusta was identified by comparative m

245 bout the redox-based mechanisms that mediate diatom sensing and acclimation to environmental stress.

246 we observed a strong phylogenetic signal for diatom sensitivity to herbicides.

247 wever, there was considerable variability in diatom sensitivity within the raphid clade, which could

248 Diatom sexual signalling is controlled by a complex, yet

249 Here, we identify experimentally tractable diatom silicic acid transporter (SIT) homologues and stu

250 A diatom size index further points to a glacial decrease (

251 odefence mechanisms developed by the coastal diatom Skeletonema marinoi were performed.

252 of HCB associated with a cosmopolitan marine diatom, Skeletonema costatum, to crude oil.

253 e use a new model ensemble reconstruction of diatom speciation and extinction rates to examine phytop

254 periments on a representative coastal marine diatom species Chaetoceros curvisetus using the referenc

255 Arctic that notably infected 25% of a single diatom species in the Bering Sea.

256 uted either by microscopic quantification of diatom species or directly from NGS data.

257 , terbutryn, diuron, and isoproturon) and 14 diatom species representative of Lake Geneva biofilm div

258 and sensitivity to herbicides in freshwater diatom species.

259 AgCys(-) complexes were bioavailable to this diatom species.

260 hat capacity in the environment suggest that diatom-specific resource partitioning was occurring in N

261 at in the pilot-scale system was composed of diatoms (Staurosira construens) and a bacterial communit

262 e summarize past attempts to obtain suitable diatom strains, propose future directions for their gene

263 tillans blooms could disrupt the traditional diatom-sustained food chain to the detriment of regional

264 microcosm experiment, in which eight marine diatoms systems with different correlations between trai

265 For the more sensitive diatom, T. pseudonana, which may not have had opportunit

266 ered differential expression of >80 genes in diatom Thalassiosira pseudonana CCMP1335 that are homolo

267 The model diatom Thalassiosira pseudonana contains three types of

268 The diatom Thalassiosira pseudonana is genetically engineere

269 exudates separated from cells of the marine diatom Thalassiosira pseudonana nucleate ice, and propos

270 cript abundance were documented in the model diatom Thalassiosira pseudonana on a time-course of sili

271 ter clade bacterium when cocultured with the diatom Thalassiosira pseudonana were those encoding the

272 oxide nanoparticles (ZnO-NPs) to the marine diatom Thalassiosira pseudonana.

273 nce between the bioavailability of Zn to the diatom Thalassiosira weissflogii, and its reduction at -

274 Here we measured the responses of a marine diatom, Thalassiosira pseudonana, to high and low concen

275 ated redox reactions; comparisons to a model diatom, Thalassiosira pseudonana, were also drawn.

276 The CCM(s) present in the marine-centric diatom, Thalassiosira pseudonana, were studied in cells

277 This contrasts a model diatom, Thalassiosira pseudonana, which transported pseu

278 this prediction in experiments with a marine diatom, Thalassiosira pseudonana: Topt decreases by 3-6

279 We compared the responses of the marine diatom, Thalassiosira weissflogii, exposed to ZnO, AgO,

280 ssed proteomes of both diatoms, although the diatom that co-occurs with K. brevis blooms (A. glaciali

281 itrogen (N) and phosphorus (P) metabolism in diatoms that cooccur regularly in an estuary on the east

282 Diatoms, the dominant primary producers, exhibited trans

283 In contrast, diatoms, the most common type of phytoplankton found in

284 blooms, which previously comprised mainly of diatoms, the unicellular, siliceous photosynthetic organ

285 r mechanisms underlying the responses of the diatom to ZnO-NPs and Zn(2+) under various regimes of te

286 ility to oxidative stress in the response of diatoms to iron quota in the marine environment.

287 network (redoxome) mediating the response of diatoms to oxidative stress.

288 This metabolic feedback enables diatoms to rapidly respond to fluctuations in environmen

289 of the polar front, driving non-ice adapted diatoms to regional or global extinction.

290 oplankton community dominated by filamentous diatoms to smaller cells will have far reaching ecosyste

291 Here, we focus on a specific algal taxon, diatoms, to become the fossil fuel of the future.

292 at prevailing mid-altitude winds transported diatoms towards the TAMs, dominantly from extensive emer

293 peting Ulva and dinoflagellates outcompeting diatoms under elevated pCO2.

294 cteria around individual Chaetoceros affinis diatoms undergoing lysis.

295 milation pathway and the recently discovered diatom urea cycle.

296 Here, a total of approximately 12 million diatom V9-18S ribosomal DNA (rDNA) ribotypes, derived fr

297 alis), as recruitment of both macroalgae and diatoms were favored in elevated nutrient conditions.

298 l phytoplankton communities are dominated by diatoms, which generate approximately 40% of marine prim

299 wever, only a few of these have investigated diatoms, which is disproportionate to their contribution

300 ng chromatin-mediated regulation of genes in diatoms will help understand the ecological success of t