ライフサイエンスコーパス: phototaxis

1 adients of chemicals (chemotaxis) and light (phototaxis).

2 and OFF pathways play distinct roles during phototaxis.

3 GCs is necessary and sufficient for negative phototaxis.

4 several signaling proteins that may disrupt phototaxis.

5 to ancestral structures which functioned in phototaxis.

6 candidate photoreceptor cells for mediating phototaxis.

7 ere retinal degeneration beyond mere loss of phototaxis.

8 putative photoreceptor (TaxD1) for positive phototaxis.

9 sJ1) lacked positive but maintained negative phototaxis.

10 at least two light input pathways regulating phototaxis.

11 be the photoreceptor that mediates positive phototaxis.

12 s, demonstrating that each receptor mediates phototaxis.

13 gulatory elements and type IV pilus-mediated phototaxis.

14 of which two, Tax1 and Tax3, are involved in phototaxis.

15 is locus is involved in controlling positive phototaxis.

16 ay from a light source by a process known as phototaxis.

17 lor discriminating receptor in halobacterial phototaxis.

18 tes that is part of a mechanism of bacterial phototaxis.

19 l amounts of chlorophyll, and do not exhibit phototaxis.

20 ents, while the Ptx system controls positive phototaxis.

21 ding periodic growth and collapse as well as phototaxis.

22 ay a number of behaviors, including negative phototaxis.

23 e, coordinated ultraviolet-A (UV-A) aversive phototaxis.

24 e systems are known to regulate motility and phototaxis.

25 slightly less motile but exhibited positive phototaxis.

26 ototaxis that is only partly correlated with phototaxis.

27 iously identified role in promoting positive phototaxis.

28 stimulus into directional movement known as phototaxis.

29 bution of the photoreceptor TaxD1 (PixJ1) to phototaxis.

30 set of central targets, selectively impaired phototaxis.

31 l cyclase activity negatively affects fungal phototaxis.

32 pon left-right light imbalance during visual phototaxis.

33 bryozoan Tricellaria inopinata and triggers phototaxis.

34 ons to transmit signals to HtrII and mediate phototaxis.

35 i is a photoreceptive organelle required for phototaxis.

36 ptimal motility, but it is not essential for phototaxis.

37 dynein, however, bop5 strains exhibit normal phototaxis.

38 known in this species--the pupil reflex [3], phototaxis [4], the optomotor response [5], and the clif

39 However, phototaxis alone cannot explain the ubiquity of disrupte

40 Phototaxis also finds important applications in biofuel

41 , has been used as a model organism to study phototaxis, an ability to move in the direction of a lig

42 motor to facilitate coordinated polarity and phototaxis and (b) possible bidirectional feedback betwe

43 lls' flagella yields propulsion important in phototaxis and chemotaxis.

44 The adaptation dynamics for phototaxis and chlorophyll fluorescence show a striking

45 ic AMP and fucose metabolism consistent with phototaxis and extracellular polymer synthesis indicatin

46 Furthermore, dhc1b-3 cells displayed altered phototaxis and flagellar beat.

47 for light activated functions as diverse as phototaxis and gene regulation.

48 Phototaxis and gliding motility in unicellular cyanobact

49 Similarly, reliable visual behaviors such as phototaxis and motion responses provided a solid foundat

50 ontrast, the double mutants exhibited normal phototaxis and odor-tracking responses.

51 Normal phototaxis and off-transient amplitude were restored by

52 that our model accounts for key features of phototaxis and provides a simple and robust mechanism fo

53 he gene for rasD causes a near-total loss of phototaxis and thermotaxis in mutant aggregates, without

54 train, and the slugs are highly defective in phototaxis and thermotaxis.

55 ions ranging from light energy conversion to phototaxis and vision.

56 on of bacterial gene expression, chemotaxis, phototaxis, and virulence.

57 In Chlamydomonas, the photoreceptors for phototaxis are the channelrhodopsins (ChR)1 and ChR2; th

58 Our results highlight spectral tuning of phototaxis as a potential mechanism contributing to opsi

59 As a control, we used phototaxis as an exemplary complex behavior in flies and

60 he colony, workers must walk, climb, and use phototaxis as they move inside and outside the nest.

61 gans, however, is generally believed to lack phototaxis, as this animal lives in darkness (soil) and

62 PCC6803 was studied with a glass slide-based phototaxis assay.

63 We quantified phototaxis at 1, 2, and 4 wk of age in the sequenced, in

64 e observed significant genetic variation for phototaxis at each age and significant genetic variation

65 We established conditions to elicit robust phototaxis behavior and found that zebrafish larvae depl

66 Phototaxis behavior is commonly observed in animals with

67 for a given light gradient, above which the phototaxis behavior of a collection of cells can even ex

68 legans is able to sense light and engages in phototaxis behavior that is mediated by photoreceptor ce

69 by site-specific mutagenesis and analysis of phototaxis behavior that two residues in SRII near the m

70 ling approaches that gaze orientation during phototaxis behaviour in larval zebrafish is related to o

71 ertain subsets and by measuring differential phototaxis between spectrally different lights.

72 e biological phenomena, including dispersal, phototaxis, biofilm formation, granulation, and symbiosi

73 cell polarization and directional migration (phototaxis) both in vitro and in vivo.

74 beta-carotene or all-trans retinol restored phototaxis but did not affect the degree of gsa inductio

75 roprene application to nurses did not affect phototaxis, but there was a shift in behavior from inter

76 stis species and affects their capability of phototaxis by controlling c-di-GMP synthesis and degrada

77 l to a body-wide nerve net, and mediate UV-A phototaxis by engaging multiple modes of locomotion.

78 that cor-assBVIN78 has a gating activity on phototaxis by projecting temporally oscillating inhibiti

79 Vital cellular processes including growth, phototaxis, cell aggregation and photosynthesis are tune

80 t rather that cor-assBVIN78 may modulate the phototaxis circuit by filtering out low-level inputs whi

81 in, where it targets key interneurons of the phototaxis circuit known as the photoreceptor relay neur

82 tants as well as some that had lost positive phototaxis (consequently, they were negatively phototact

83 in its aberrant multicellular development or phototaxis defect, implying that the early and late func

84 The developmental and phototaxis defects are cell autonomous and marker analys

85 creases in flagellar microtubule sliding and phototaxis defects.

86 otenoids (as indicated by the restoration of phototaxis) did not affect the degree of light induction

87 Finally, we examine how positive phototaxis emerges in zebrafish larvae from the modulati

88 A deltataxD1 mutant, which exhibits negative phototaxis even under low-fluence light, has a similar a

89 e NpSRII-NpHtrII complex is not required for phototaxis, excluding the domain as a site for signal tr

90 R6, R7, R8 (blue), R8 (green)] distinguishes phototaxis from motion detection that is mediated exclus

91 e the first in SRII shown to be required for phototaxis function, provide biological significance to

92 ion in critical cellular processes including phototaxis, gametogenesis, and the biogenesis of the pho

93 ia; here these genes are designated ptx (for phototaxis) genes.

94 echanisms through which a zebrafish performs phototaxis, i.e. actively orients towards a light source

95 avelengths and light-dependent inhibition of phototaxis in both bands by hydroxylamine suggest the in

96 e found that light stimuli elicited negative phototaxis in C. elegans and that this behavior is impor

97 redator dynamics, flocking and swarming, and phototaxis in cell dynamics.

98 but are impaired in one particular phase of phototaxis in comparison with wild-type Synechocystis sp

99 We show that phototaxis in cryptophytes is likely mediated by a two-r

100 ity can modulate cell polarity and establish phototaxis in fibroblasts.

101 opsin also acts as a photoreceptor linked to phototaxis in green algae [2, 3] and has been implicated

102 rhodopsin II (SRII), a receptor for negative phototaxis in haloarchaea, transmits light signals throu

103 iven proton pump and a receptor for negative phototaxis in haloarchaeal membranes, respectively.

104 ized photoreceptor pigment used for negative phototaxis in halobacteria.

105 nes in cluster 2i are essential for positive phototaxis in N. punctiforme hormogonia; here these gene

106 hroughput device for automatically assessing phototaxis in single animals in parallel.

107 read in cyanobacteria; one of them regulates phototaxis in Synechocystis PCC 6803.

108 the red light photoreceptor TaxD1, negative phototaxis in Synechocystis sp. strain PCC6803 is mediat

109 fusion molecule that is central to zoospore phototaxis in the aquatic fungus Blastocladiella emerson

110 We observed that positive phototaxis in wild-type cells was a low fluence response

111 Phototaxis in zebrafish is a hardwired navigational beha

112 ive to motion yet displays fully intact fast phototaxis, indicating that these animals are generally

113 While phototaxis is a common strategy to cope with such fluctu

114 Phototaxis is also dependent upon all the components of

115 Phototaxis is an important reaction to light displayed b

116 Phototaxis is characteristic of the pelagic larval stage

117 These results suggest that while positive phototaxis is controlled by the red light photoreceptor

118 These results confirm that negative phototaxis is evident before the onset of rod- and cone-

119 Larval phototaxis is mediated by simple eyes that can express v

120 We find this eye-brain-independent phototaxis is mediated by two noncanonical rhabdomeric o

121 Phototaxis is one of the most fundamental stimulus-respo

122 assBVIN78 results in larvae showing extended phototaxis-like swims, even in the absence of phototacti

123 tant phototaxis, opposite from the repellent phototaxis mediated by the wild-type di-HAMP SRII-HtrII

124 ts of cyanobacterial photobiology, including phototaxis, metabolism of cyclic nucleotide second messe

125 MP and novel gene products are necessary for phototaxis/motility suggests that there might be additio

126 e of robust locomotion, object transport and phototaxis (movement towards a light stimulus).

127 These cells represent a novel class of phototaxis mutant, and indicate a role for a Ras pathway

128 ated transposon-tagged mutants with aberrant phototaxis; mutants were either nonmotile or exhibited a

129 oped here led to materials with the negative phototaxis observed in plants and could expand the poten

130 In nature, VirChR1s likely mediate phototaxis of algae enhancing the host anabolic processe

131 ion prevents accumulation of cGMP levels and phototaxis of fungal zoospores exposed to green light, w

132 sue-specific markers and the strong negative phototaxis of planarians.

133 We study phototaxis of single-celled algae Chlamydomonas reinhard

134 te description of both positive and negative phototaxis only when phototactic sensitivity is modeled

135 HAMP2-deleted SRII-HtrII exhibit attractant phototaxis, opposite from the repellent phototaxis media

136 Photoreceptors for visual perception, phototaxis or light avoidance are typically clustered in

137 Phototaxis, orientation to light, is linked to sucrose r

138 dual cells exhibit light-directed motility ("phototaxis") over surfaces, resulting in the emergence o

139 Conversely, strains defective in phototaxis perform ammonium chemotaxis normally.

140 two eyes co-evolved with neurons to improve phototaxis performance.

141 hfnA(-) cells exhibit altered slug phototaxis phenotypes consistent with filamin complex hy

142 Crystal structures of the Synechocystis BLUF phototaxis photoreceptor Slr1694 have been determined in

143 t abundances at different times and putative phototaxis photoreceptors transcribed throughout the day

144 ides its application to study chemotaxis and phototaxis, PiVR is a versatile tool designed to bolster

145 The phototaxis receptor complex composed of sensory rhodopsi

146 salinarum sensory rhodopsin II (HsSRII) is a phototaxis receptor for blue-light avoidance that relays

147 Sensory rhodopsin II (SRII), a repellent phototaxis receptor found in Halobacterium salinarum, ha

148 Sensory rhodopsin II (SRII) is a repellent phototaxis receptor in the archaeon Halobacterium salina

149 Sensory rhodopsin-I (SRI), a phototaxis receptor of archaebacteria, is a retinal-bind

150 Channelrhodopsins, such as the algal phototaxis receptor Platymonas subcordiformis channelrho

151 The molecular complex containing the phototaxis receptor sensory rhodopsin I (SRI) and transd

152 The phototaxis receptor sensory rhodopsin I (SRI) exists in

153 The haloarchaeal phototaxis receptor sensory rhodopsin I (SRI) in complex

154 The phototaxis receptor sensory rhodopsin I (SRI) transmits

155 t signaling conformers of the dual-signaling phototaxis receptor sensory rhodopsin I and its transduc

156 Two forms of the phototaxis receptor sensory rhodopsin I distinguished by

157 ember of the microbial rhodopsin family, the phototaxis receptor sensory rhodopsin II (NpSRII), which

158 e structures of the cytoplasmic loops of the phototaxis receptor sensory rhodopsin II (SRII) and the

159 The proton pump bacteriorhodopsin and the phototaxis receptor sensory rhodopsin II (SRII) differ b

160 s (M and O) are most similar to those of the phototaxis receptor sensory rhodopsin II.

161 sis to contain sites of interaction with the phototaxis receptor SRI.

162 I) in Halobacterium salinarum membranes is a phototaxis receptor that signals through its bound trans

163 light-driven proton pump, whereas SRII is a phototaxis receptor that transmits a light-induced confo

164 Both sensory rhodopsin I, a phototaxis receptor, and bacteriorhodopsin, a light-driv

165 report characterization of PsChR, one of the phototaxis receptors in the alga Platymonas (Tetraselmis

166 s, function as low- and high-light-intensity phototaxis receptors in the eukaryotic alga Chlamydomona

167 nsory rhodopsins A and B (CSRA and CSRB), as phototaxis receptors is demonstrated by in vivo analysis

168 ants for their specific interaction with the phototaxis receptors sensory rhodopsins I and II (SRI an

169 sory rhodopsins I and II (SRI and SRII), are phototaxis receptors that send signals to tightly bound

170 Energy taxis encompasses aerotaxis, phototaxis, redox taxis, taxis to alternative electron a

171 xis encompasses aerotaxis (taxis to oxygen), phototaxis, redox taxis, taxis to alternative electron a

172 ed an "inverted motility response" (negative phototaxis) relative to wild-type cells.

173 loss of bdl causes a failure of R8-dependent phototaxis response to green light.

174 hemical kinetics of SRI and one reverses the phototaxis response.

175 riminating dual-signaling mechanism in which phototaxis responses (his-kinase modulation) result from

176 us sites replaced by alanine still exhibited phototaxis responses and behavioral adaptation, and meth

177 se fusion chimeras mediate retinal-dependent phototaxis responses by Escherichia coli, establishing t

178 nd transducers was assessed by two criteria: phototaxis responses by the cells and transducer-modulat

179 transducer for SRI) mediates color-sensitive phototaxis responses in the archaeon Halobacterium salin

180 dence of CSRA and CSRB activity in producing phototaxis responses matches precisely the wavelength de

181 lidene protein that mediates color-sensitive phototaxis responses through its bound transducer HtrI i

182 pharaonis, alter their swimming behavior by phototaxis responses to changes in light intensity and c

183 e monocysteine mutants, G83C, showed loss of phototaxis responses, and analysis of double mutants sho

184 ransmitting photosignals to HtrII to mediate phototaxis responses.

185 embrane transducer (HtrII) and induce robust phototaxis responses.

186 nsory rhodopsin receptor, NpSRII, to mediate phototaxis responses.

187 ctions and attractant and 2-photon repellent phototaxis responses.

188 amydomonas sensory receptors responsible for phototaxis reveals additional diversity among the microb

189 ely after treatment demonstrated that larval phototaxis, salt aversion, and heptanol preference were

190 new mutants selected using a chemotaxis and phototaxis screen.

191 avelengths (ca. 330-750 nm) and can regulate phototaxis, second messenger metabolism, and optimizatio

192 entally tested, general theoretical model of phototaxis seems unavailable to date.

193 corresponding to the long-wavelength band of phototaxis sensitivity, makes this pigment a candidate f

194 m (lambda max = 587 nm) which functions as a phototaxis signal transducer when complexed to HtrI, whi

195 the membrane-embedded surface, confers weak phototaxis signaling activity, and the additional two (s

196 n be detected by the connectivity switch, to phototaxis signaling by sensory rhodopsin-transducer com

197 hort flexible linker to NpHtrII is active in phototaxis signaling for H. salinarum, showing that the

198 al analysis of RNAi-transformants to mediate phototaxis signaling in Chlamydomonas reinhardtii.

199 photoactive site, correspond to the opposite phototaxis signals.

200 gi have a cGMP signaling pathway involved in phototaxis similar to the vertebrate vision-signaling ca

201 the response to light toward a more positive phototaxis, similar to that observed in nonexposed C. fi

202 During chemotaxis and phototaxis, sperm, algae, marine zooplankton, and other

203 thermore, we find that the related repellent phototaxis SRII-HtrII receptor complex has an outwardly

204 1+LOV2) alone also affected eyespot size and phototaxis, suggesting that aside from activation of the

205 s of sequence homologies of the haloarchaeal phototaxis system components to those of E. coli chemota

206 The two transducers in the phototaxis system of the archaeon Halobacterium salinaru

207 measure of histidine kinase activity in the phototaxis system, indicate that the two forms are a pho

208 The characterized phototaxis systems rely on methyl-accepting chemotaxis p

209 ose that phototropin is a light regulator of phototaxis that desensitizes the eyespot when blue light

210 gnificant genetic variation in senescence of phototaxis that is only partly correlated with phototaxi

211 m, the algal carbon-concentrating mechanism, phototaxis, the biogenesis and function of cilia, and ot

212 e animals." Notably, apart from head-removed phototaxis, the body-wide, extraocular sensory organizat

213 In negative phototaxis, the larvae first perform short spontaneous r

214 Phototaxis, the process through which motile organisms d

215 Phototaxis thus depends on the cell's ability to adjust

216 n of the htrII and sopII genes restores SRII phototaxis to a mutant (Pho81) that contains a deletion

217 type 4 pili (T4P) is common and facilitates phototaxis to seek out favorable light environments.

218 microm-diameter polystyrene beads) to cells, phototaxis to steer swimming cells, and photochemistry t

219 phototactic but showed reduced efficiency of phototaxis to wavelengths matching the in vitro Go-opsin

220 rdtii) exhibits oriented movement responses (phototaxis) to light over more than three log units of i

221 cterium Synechocystis sp. PCC6803 to control phototaxis toward blue light.

222 ecessary and sufficient for flies to exhibit phototaxis toward ultraviolet instead of green light.

223 positions of otherwise cysteineless HtrI, a phototaxis transducer found in Halobacterium salinarum t

224 ween the eubacterial and first halobacterial phototaxis transducer gene htrI.

225 quantum attractant and two-quantum repellent phototaxis, transmitting light stimuli via its bound tra

226 r1 gene affects several processes, including phototaxis, type IV pilus biosynthesis, photosystem II l

227 Wild-type cells exhibited negative phototaxis under high-intensity broad-spectrum light.

228 scence by measuring age-dependent decline in phototaxis using Drosophila melanogaster as a genetic mo

229 py to quantify the sensorimotor structure of phototaxis using the Drosophila larva.

230 Negative phototaxis was absent in mice lacking melanopsin.

231 Bacterial phototaxis was first recognized over a century ago, but

232 This red-light-induced phototaxis was inhibited or photoreversible by infrared

233 Panel (DGRP) and found an average decline in phototaxis with age.

234 Computational simulation of phototaxis with an OFF-turn, ON-approach algorithm verif

235 yptophyte Guillardia theta exhibits positive phototaxis with maximum sensitivity at 450 nm and a seco

236 odopsin-1, the dominant primary receptor for phototaxis within the eyespot.