ライフサイエンスコーパス: gravitropic

1 whereas their inflorescence stems are fully gravitropic.

2 ation and points to an interplay between the gravitropic and mechanical responses and to the extreme

3 loped that accurately predicted the complete gravitropic and proprioceptive control over the movement

4 ributors to root and shoot branch angles and gravitropic behavior of seedling hypocotyls and primary

5 opment in Arabidopsis, and also affects root gravitropic behaviour.

6 tion of curvature, and relate the angle of a gravitropic bend to the magnitude and duration of asymme

7 dependent physiological processes, including gravitropic bending and root development.

8 led that auxin-induced growth inhibition and gravitropic bending are significantly delayed in cngc14

9 e long-term increase in InsP(3), and reduced gravitropic bending by 65%.

10 -1) and ein2-5 mutations dramatically reduce gravitropic bending in hypocotyls.

11 meters per cubic meter decreased the rate of gravitropic bending in stems of cocklebur (Xanthium stru

12 Gravitropic bending of oat plants is inhibited at 4 degr

13 Gravitropic bending of plant organs is mediated by an as

14 inhibits primary root elongation and delays gravitropic bending of shoots and roots.

15 corn (Zea mays var. Merit), light stimulates gravitropic bending of the root by influencing events in

16 Furthermore, gravitropic bending of the roots, hypocotyls, and inflor

17 um differences coinciding with the timing of gravitropic bending, and was located in epidermal cells.

18 hibiting ethylene action, fails to influence gravitropic bending.

19 ature, whereas alkalinizing agents disrupted gravitropic bending.

20 Light-grown NS458 hypocotyls were gravitropic but were less sensitive than the wild type (

21 Gravitropic competency was established about 8 h after i

22 sing is thus as important as gravisensing in gravitropic control, and the B ratio can be measured as

23 significantly influenced the time course of gravitropic curvature and the two measures of sensitivit

24 that suppress apyrase activity also inhibit gravitropic curvature and, to a lesser extent, growth.

25 ic acid and naphthylphthalamic acid, blocked gravitropic curvature but not the change in current dens

26 Finally, we demonstrate that AUX1 regulates gravitropic curvature by acting in unison with the auxin

27 d-type roots, suggesting that ACC may reduce gravitropic curvature by altering flavonoid synthesis.

28 hizoids are not limited in their ability for gravitropic curvature by growth and that these rhizoids

29 Novel features of gravitropic curvature development were discovered as a r

30 It can determine when and where gravitropic curvature develops along the root axis in A.

31 lted in root straightening through a loss of gravitropic curvature in older regions and through new g

32 of models that have been proposed to explain gravitropic curvature in roots.

33 vity conditions are linearly correlated with gravitropic curvature in wild-type stems.

34 These findings indicate that gravitropic curvature is not necessarily permanent, and

35 The Cholodny-Went hypothesis holds that gravitropic curvature of a growing plant organ depends o

36 ssible role of calcium redistribution in the gravitropic curvature of roots and the possibility of ca

37 gravity-induced amyloplast sedimentation and gravitropic curvature of these mutants was identical to

38 o growth inhibition by ACC, whereas the root gravitropic curvature of these tt4 alleles was much less

39 Furthermore, gravitropic curvature response in these pulvini was redu

40 n of hemicellulosic wall polymers during the gravitropic curvature response of intact pea (Pisum sati

41 gravistimulation, and both their growth and gravitropic curvature were inhibited.

42 The effects of stimulus withdrawal on gravitropic curvature were studied by following individu

43 el describing possible relationships between gravitropic curvature, IAA redistribution, and Ivr2 expr

44 ibution of Ca2+ and its role in establishing gravitropic curvature.

45 cv Merit) seedlings with the time course of gravitropic curvature.

46 ed in root apical tissues that regulate root gravitropic curvature.

47 stant root growth phenotype and abolish root gravitropic curvature.

48 gravistimulation and slower kinetics of root gravitropic curvature.

49 xylic acid (ACC) reduced root elongation and gravitropic curvature.

50 elongation zone, responsible for part of the gravitropic curvature.

51 thway from pgm1, as pgm1 mutants enhance the gravitropic defect of arg1.

52 ate to identify new mutants that enhance the gravitropic defect of arg1.

53 ozygous state display a more pronounced root gravitropic defect than the single mutants.

54 s provides a mechanistic explanation for the gravitropic defect, and may also account for the presenc

55 ts or hypocotyls is sufficient to rescue the gravitropic defects in the corresponding organs of arg1-

56 ntation may confound investigations of early gravitropic events.

57 Gravitropic experiments show that when dark-grown corn s

58 gions of the root, inhibited both subsequent gravitropic growth and amyloplast sedimentation in the c

59 has been shown to block auxin transport and gravitropic growth in primary roots of Arabidopsis (Arab

60 This growth behavior is reversible in that gravitropic growth resumes when seedlings are returned t

61 apex in radiotracer experiments and reduced gravitropic growth.

62 we report the isolation the mutant gil1 (for gravitropic in the light) in which hypocotyls continue t

63 La3+, a poor gravitropic inhibitor, acts similarly but much more grad

64 avitropism and how much phototropism affects gravitropic measurements.

65 ed recently as the mutated gene in the shoot gravitropic mutant zig.

66 gravitropic response by hypergravity in the gravitropic mutants that we tested indicates that these

67 upport this idea, we examined two additional gravitropic mutants, phosphoglucomutase (pgm) and sgr9,

68 e microscope in combination with analysis of gravitropic mutants.

69 ark, corrected values were obtained for each gravitropic parameter.

70 We characterized the auxin transport and gravitropic phenotypes of the pinoid-9 (pid-9) mutant of

71 3) root tip impedance is augmented by normal gravitropic pressure applied by the root tip against the

72 ful parameters such as root elongation rate, gravitropic rate and branching rate.

73 These observations imply a constant gravitropic re-setting of the root tip response to touch

74 toskeleton-disturbing herbicide that inhibit gravitropic reception act on the channel system at low c

75 gene expression patterns as a consequence of gravitropic reorientation and points to an interplay bet

76 gth and the other additionally analyzing the gravitropic response and curvature.

77 tion zone, was built in the first 2 h of the gravitropic response and dissipated after another 2 h.

78 shoot in fuct-1 account for both the reduced gravitropic response and the increased tiller angle.

79 Further, the restoration of the gravitropic response by hypergravity in the gravitropic

80 The compromised gravitropic response in all the major axes of growth in

81 urbation of auxin gradient formation, slower gravitropic response in roots, and cytokinetic failure.

82 nisms underlying these various phases of the gravitropic response in roots.

83 hat influences flavonoid levels and the root gravitropic response in seedlings under nonstressed cond

84 sgr2) mutant, which exhibits neither a shoot gravitropic response nor amyloplast sedimentation at 1 g

85 igher concentrations of ethylene inhibit the gravitropic response of all but the ethylene-insensitive

86 nositol 1,4,5-trisphosphate (InsP(3)) in the gravitropic response of oat (Avena sativa) shoot pulvini

87 establishment of tissue polarity during the gravitropic response of oat pulvini.

88 tes a role for calcium and calmodulin in the gravitropic response of primary roots of maize (Zea mays

89 e was unaffected in the mutant; however, the gravitropic response of rgr1 contained a feature not fou

90 opism depends on the novel protein, NEGATIVE GRAVITROPIC RESPONSE OF ROOTS (NGR).

91 at calmodulin plays an important role in the gravitropic response of roots.

92 tribution of auxin-regulated RNAs during the gravitropic response of soybean hypocotyls.

93 is study we investigated the kinetics of the gravitropic response of the Arabidopsis mutant rgr1 (red

94 ylene concentrations can restore the reduced gravitropic response of the auxin-resistant dgt (diageot

95 Delayed gravitropic response of the crk5 mutant thus likely refl

96 The gravitropic response of the Missouri cultivar is indepen

97 ylene is a mediator of the primary, negative gravitropic response of tomato shoots.

98 ethylene does not play a primary role in the gravitropic response of tomato, low levels of ethylene a

99 he pid-9 rcn1 double mutant has a more rapid gravitropic response than rcn1.

100 fset mechanism that operates in tension with gravitropic response to generate angled isotropic growth

101 on of 8,300 genes during early stages of the gravitropic response using high-density oligonucleotide

102 The gravitropic response was characterized by the appearance

103 e altered calcium sensitivity in controlling gravitropic response, a reduction in basipetal indole-3-

104 levels of ethylene are necessary for a full gravitropic response, and moderate levels of the hormone

105 dicates that gravity perception, but not the gravitropic response, occurs at 4 degrees C.

106 cts in growth, utilization of stored carbon, gravitropic response, salt sensitivity, and specific sus

107 opersicon esculentum Mill.) includes reduced gravitropic response, shortened internodes, lack of late

108 e primary root of the mutant shows a reduced gravitropic response, while its elongation, lateral root

109 h affects cellular root expansion during the gravitropic response.

110 sed rate of root growth, and an altered root gravitropic response.

111 s potentially having a role in mediating the gravitropic response.

112 y stage in the signal cascade leading to the gravitropic response.

113 s that do not affect root growth altered the gravitropic response.

114 on of the waving/coiling phenomenon onto the gravitropic response.

115 s vertical, indicating the retention of some gravitropic response.

116 steering the rate of root cell expansion and gravitropic response.

117 xin distribution and root bending during the gravitropic response.

118 unced defects in primary root elongation and gravitropic response.

119 ing gravity sensing to the initiation of the gravitropic response.

120 ted to dim red light it displayed a reversed gravitropic response.

121 smic pH shift with caged protons delayed the gravitropic response.

122 These gravitropic responses can be altered by developmental an

123 permitting kinematic analysis of growth and gravitropic responses for a variety of root types.

124 study, we investigated factors that control gravitropic responses in this system.

125 The gravitropic responses of nr and the constitutive-respons

126 s respond to changes in orientation by using gravitropic responses to modify their growth.

127 N-1-naphthylphthalamic acid will not inhibit gravitropic responses when applied to pulvinus tissue af

128 nt's perception of gravity and the resulting gravitropic responses, little is known about the role of

129 n on a 1-rpm clinostat resulted in extensive gravitropic responses, manifested as curvature that ofte

130 h fuct-1 and fuct-2 plants exhibited reduced gravitropic responses.

131 root meristem maintenance, auxin fluxes, and gravitropic responses.

132 ic acid (GA), shows asymmetric action during gravitropic responses.

133 y the nph4 mutants are also altered in their gravitropic responsiveness.

134 y5 mutant background is able to suppress the gravitropic root growth defect of hy5 mutants.

135 e defect within auxin uptake and restore the gravitropic root phenotype of aux1 by growing mutant see

136 Our data support the plastid-based theory of gravitropic sensing and suggest that HGMF-induced ponder

137 y that is lower than the surrounding medium, gravitropic sensing probably utilizes an intracellular m

138 le of plastid mass and sedimentation in stem gravitropic sensing.

139 t hypocotyls contain sedimented amyloplasts, gravitropic sensitivity (induction time and intermittent

140 whereas the defects in cap morphogenesis and gravitropic sensitivity cannot.

141 The time course of the development of gravitropic sensitivity following illumination parallele

142 relationship between calmodulin activity and gravitropic sensitivity in roots of the maize cultivars

143 data suggest that starch deficiency reduces gravitropic sensitivity more in dark-grown hypocotyls th

144 tivars with different light requirements for gravitropic sensitivity was investigated.

145 d detailed curvature kinetics, estimation of gravitropic sensitivity, and monitoring of curvature dev

146 full complement of starch is needed for full gravitropic sensitivity, this study correlates increased

147 may not have sufficient mass to provide full gravitropic sensitivity.

148 fic angles with respect to gravity, known as gravitropic set point angles (GSAs).

149 function complementarily in establishing the gravitropic set-point angles of lateral roots.

150 respect to gravity, a quantity known as the gravitropic setpoint angle (GSA) [1].

151 th of ARs, gravity and light determine their gravitropic setpoint angle (i.e. the deviation of growth

152 Hence, the gravitropic setpoint angle of rice ARs is controlled by

153 mechanism to regulate the proliferation of a gravitropic signal originating from the cap to allow the

154 ur hypothesis that ARG1 is involved early in gravitropic signal transduction within the gravity-perce

155 tle is known about the mechanisms underlying gravitropic signal transduction.

156 ytoplasmic pH (pH(c)) is a mediator in early gravitropic signaling.

157 e gravitropism by continuously resetting the gravitropic-signaling system.

158 pply new insight into the molecular basis of gravitropic signalling.

159 that settle to the 'bottom' of the cell into gravitropic signals.

160 ensitivity, it was not required, because the gravitropic starchless mutant had plastids that did not

161 Cholodny-Went, auxin-transport hypothesis of gravitropic stem bending was proposed as early as 1958,

162 genes were specifically induced only during gravitropic stimulation (gravity induced genes).

163 he mescotyl within 3 minutes after beginning gravitropic stimulation.

164 ment to its equilibrium orientation prior to gravitropic stimulation.

165 to the elongating side of the hypocotyl upon gravitropic stimulation.

166 ernal auxin treatments and transiently after gravitropic stimulation.

167 We show that gravitropic straightening shares common traits across sp