ライフサイエンスコーパス: root cap

1 aller shoot apical meristem, and an enlarged root cap.

2 utoregulated in a specific region within the root cap.

3 The site of perception for the light is the root cap.

4 ing of the root by influencing events in the root cap.

5 he DEZ is about 2.5 mm behind the tip of the root cap.

6 is not a component of gravity sensing in the root cap.

7 and in the activities of proteins within the root cap.

8 s are localized within dividing cells of the root cap.

9 ed cell death at the most distal edge of the root cap.

10 edominantly found in the elongation zone and root cap.

11 ise to all cell types of the root except the root cap.

12 fter laser ablation removed the meristem and root cap.

13 atocytes to auxin redistribution through the root cap.

14 most organs of seedlings, but strong in the root cap.

15 levels of a wide variety of mRNAs within the root cap.

16 rceived by a specialized group of cells, the root cap.

17 mporally, with border cell separation in pea root caps.

18 Thus, root cap ablation alters root architecture both by inhib

19 Root cap amyloplasts in mar2 arg1 appear ultrastructural

20 te for gravity sensing in roots includes the root cap and appears to involve the sedimentation of amy

21 These cells separate from the rest of the root cap and are released from its edge as a layer of li

22 M to visualize microbial dynamics within the root cap and elongation zone of Arabidopsis thaliana pri

23 e outer layers of the root meristem (lateral root cap and epidermis) and in the central cylinder cell

24 T4, ACT12 was also strongly expressed in the root cap and in a ring of pericycle tissues during later

25 thase (ZmACS) expression was observed in the root cap and in cortical cells whereas ACC oxidase (ZmAC

26 and placement, degraded starch grains in the root cap and induced uneven distribution of auxin in tar

27 itropism relies on gravity perception by the root cap and requires tightly regulated phytohormone sig

28 This includes the root cap and root apical meristems, leaf primordia, tips

29 influx carrier AUX1 in cells of the lateral root cap and root epidermis.

30 cessary for normal communication between the root cap and root in Zea mays cv Ageotropic.

31 Root border cells lie on the surface of the root cap and secrete massive amounts of mucilage that co

32 utant that does not express AtCel5 forms the root cap and sheds root cap cells but sloughing is less

33 ing compounds needed to protect the delicate root cap and signal motile rhizobia required for symbiot

34 ment of asymmetric auxin movement across the root cap and the rate of curvature, with both values inc

35 auxin-induced Ca2+ increases in the lateral root cap and vasculature, indicating that CMI1 represses

36 t border cells are cells that originate from root caps and are released individually into the rhizosp

37 hat LeMir is expressed constitutively in the root-cap and root-tip epidermis.

38 ition of the Korper-Kappe boundary, discrete root cap, and presence of many anticlinal cell divisions

39 cell layers are missing from the transgenic root caps, and the remaining cells are abnormal.

40 The root cap apoplast acidified from pH 5.5 to 4.5 within 2

41 uctural differences between B. napus and pea root cap arabinogalactan proteins and (2) a cross-link b

42 Finally, we assessed the impact of root cap arabinogalactan proteins on the behavior of zoo

43 ls and the resultant pH gradients across the root cap are important at an early stage in the signal c

44 myloplasts within the columella cells of the root cap are important for gravitropism, and starchless

45 Cells in the last layer of the root cap are known as border cells, or border-like cells

46 However, it is not known whether root caps are essential for normal shoot and root develo

47 ent changes of auxin activity in the lateral root cap associated with the control of cell elongation.

48 In both vascular tissue and the root cap, atao1 expression occurs in cells destined to u

49 On the contrary, border cells on the root cap behaved in a charge-specific fashion: positivel

50 ent center, dissipated auxin gradient in the root cap, bundled actin cytoskeleton, and reduced cell d

51 PsHRGP1 is highly expressed in uninduced root caps, but its message is repressed by 10-11 times a

52 r and describe its use to genetically ablate root caps by directing root cap-specific expression of a

53 ells from pea roots synchronizes and induces root cap cell division, wall biogenesis and differentiat

54 orrelates with a thicker root tip with extra root cap cell layers.

55 lar marker to further analyze the process of root cap cell separation and a root cap specific promote

56 sence of arabinogalactan protein epitopes on root cap cell walls using immunofluorescence microscopy.

57 ork in several different contexts, including root-cap cell differentiation, plant response to biotic

58 rns in the various cell types of the lateral root cap, cell division, and cell expansion zones.

59 types of molecules containing the peripheral root-cap-cell-specific epitope JIM 13.

60 rganized cortical microtubules in peripheral root cap cells as well as reduced branching of trichomes

61 AtCel5-GUS as a marker, we observed that the root cap cells begin to separate at the sides of the tip

62 express AtCel5 forms the root cap and sheds root cap cells but sloughing is less efficient compared

63 The sloughing of root cap cells from the root tip is important because it

64 The endoplasmic reticulum (ER) of columella root cap cells has been postulated to play a role in gra

65 is thaliana that is expressed exclusively in root cap cells of both primary and secondary roots.

66 O1 is expressed in the columella and lateral root cap cells of the root tip, which are known to exper

67 synchronous bursts of cell death in lateral root cap cells release pulses of auxin to surrounding ro

68 GUS staining is observed in both root cap cells that are still attached and cells that ha

69 ro(TRH1):GUS expression was localized to the root cap cells which are known to be the sites of gravit

70 h-pressure frozen/freeze-substituted alfalfa root cap cells with electron microscopy/tomography.

71 trichomes, abscission zone cells, peripheral root cap cells, and xylem pole pericycle cells.

72 ian strips, dividing meristematic cells, and root cap cells, as well as subcellular features includin

73 -type plants, transient touch stimulation of root cap cells, but not other regions of the root, inhib

74 on specifically in terminally differentiated root cap cells, suggesting that these ion fluxes act as

75 crete patterns of gene expression in lateral root cap cells, vascular tissue of roots, developing lea

76 ds (statoliths) to the bottom of the central root cap cells.

77 he AtCel5 gene that is also expressed in the root cap cells.

78 of slime-secreting epidermal and peripheral root-cap cells.

79 The cytosolic alkalinization of root cap columella cells that normally occurs very rapid

80 root tip lacking a presumptive meristem and root cap columella cells.

81 rganization and root growth and formation of root cap columella cells.

82 lso result in auxin-related expansion of the root cap columella, consistent with a role for ARL2 and

83 with a concentration maximum in the lateral root cap, columella, columella initials, and quiescent c

84 amount of auxin in an expanded domain of the root cap compared with the wild type, and no detectable

85 These observations imply that the root caps contain essential components of the signaling

86 Arabidopsis thaliana, auxin released by the root cap contributes to the regular spacing of lateral o

87 on to be restricted to the stele and lateral root cap, cotyledonary margins, tip of the stigma, polle

88 The root cap covers the tip of the root and functions to pro

89 h, plant cells are programmed to detach, and root cap-derived border cells are examples of this.

90 ronan processing during Arabidopsis thaliana root cap development and by analyzing sites of chitosan

91 yledon venation patterning, root growth, and root cap development.

92 This demonstrates that root cap dPCD and rapid post-mortem clearance of cellula

93 Application of calcium to the root cap enhanced basipetal movement of auxin, increasin

94 ty may be required in root meristems and the root cap for normal primary root growth.

95 rts but agravitropic roots, implying loss of root cap function.

96 tural and compositional rearrangement during root cap growth and the release of border cells.

97 Although the columella cells of the root cap have been identified as the site of gravity per

98 are expressed differentially in such induced root caps have been cloned.

99 The role of the root cap in the plant response to phosphate deprivation

100 he sugar composition of the cell wall of the root cap in two species: pea (Pisum sativum), which make

101 ateral auxin gradient develops across mutant root caps in response to gravistimulation.

102 s regulating the process of sloughing of the root cap, including AtCel3/At1g71380, the paralog of the

103 ages increase ca. 3-fold within 15 min after root cap induction.

104 sults suggest that V-ATPase functions in the root cap influenced root growth.

105 partial block of auxin transport through the root cap is associated with upstream accumulation of the

106 The root cap is increasingly appreciated as a complex and dy

107 ngs are consistent with suggestions that the root cap is not only the site of perception but also the

108 The results indicate that the root cap is particularly important in maintaining basipe

109 cap meristem and consequent turnover of the root cap is self-regulated by a signal from border cells

110 The genome of the columella root cap is the most highly methylated Arabidopsis cell

111 re we report that protein secretion from pea root caps is induced in correlation with border cell sep

112 ateral application of aluminum or calcium to root caps is likely to result from localized effects of

113 ivisions in the meristem, with the outermost root cap layer thought to provide protection.

114 hat orchestrates both the formation of extra root cap layers and primary root growth under Pi scarcit

115 We conclude that the root cap, long known to release a high molecular weight

116 We observed that AUX1 in lateral root cap (LRC) and elongating epidermal cells greatly en

117 However, recent studies reveal that lateral root cap (LRC) cells control meristem size and lateral r

118 The lateral root cap (LRC) is the outermost tissue of the root meris

119 o, but not touching the obstacle, whilst the root cap maintained contact with the barrier.

120 For this work, we have used root caps maintained aseptically in culture media supple

121 t-stimulated increase in protein activity in root caps may be preceded by and occur as a consequence

122 nt with the hypothesis that operation of the root cap meristem and consequent turnover of the root ca

123 of developing kernels and was highest in the root cap meristem and quiescent center of heat-stressed

124 ter, a transient induction of mitosis in the root cap meristem can be detected starting within 5 min.

125 n the root cap periphery, mitosis within the root cap meristem, but not the apical meristem, is suppr

126 gives rise to the body of the root; and the root cap meristem, which gives rise to cells that differ

127 pical 1- to 2-mm root tip housing apical and root cap meristems is resistant to infection by most pat

128 Here, we show that ADK is a modulator of root cap morphogenesis and gravitropism.

129 on occurs at the root tip and that an intact root cap must be present for this metabolic event to occ

130 ing switch in gene expression throughout the root cap occurs in parallel with the increase in mitosis

131 antly reduced ethylene production, a smaller root cap of increased cell number but smaller cell size,

132 nerated by the gravity sensing region of the root cap of maize (Zea mays cv Merit) in response to gra

133 To this end, the root caps of white clover (Trifolium repens) grown in th

134 a more oxidized redox status than either the root cap or meristem.

135 new border cells begin to separate from the root cap periphery within 1 h.

136 umber of border cells has accumulated on the root cap periphery, mitosis within the root cap meristem

137 r, these results suggest that alterations in root cap pH likely are involved in the initial events th

138 cuolation of cells in the calyptrogen of the root cap, phenotypes that were complemented by exogenous

139 In this paper, we report on changes in root cap proteins which occur as a result of the light t

140 idase (ZmACO) expression was detected in the root cap, protophloem sieve elements, and the companion

141 tem (PM), the quiescent center (QC), and the root cap (RC).

142 and a pectin lyase-like gene, as well as the root cap regulators SOMBRERO and BEARSKIN1/2, are activa

143 Their root caps secrete little or no mucilage and touch the ro

144 When this root cap secretome was proteolytically degraded during i

145 n identification technology, to comprise the root cap secretome.

146 these results suggest that the cells of the root cap sense touch stimuli and their subsequent signal

147 Root caps sense and transmit environmental signals, synt

148 extracellular DNA (exDNA) is a component of root cap slime and that exDNA degradation during inocula

149 1-h period when no cell death occurs yielded root cap slime containing (32)P-labeled exDNA.

150 he process of root cap cell separation and a root cap specific promoter for targeting to the environm

151 to genetically ablate root caps by directing root cap-specific expression of a diphtheria toxin A-cha

152 We report the identification of a root cap-specific promoter and describe its use to genet

153 Arabidopsis thaliana roots, focusing on the root cap-specific transcription factor ANAC033/SOMBRERO

154 cies in the root tip, subsequently impacting root cap stability, polar localization of PIN-FORMED 2 (

155 ed well-defined, localized phenotypes in the root cap, stomatal lineage, or entire lateral roots.

156 Application of aluminum to the root cap strongly promoted acropetal transport of auxin

157 the BioServe Fluid Processing Apparatus and root cap structure was examined at both light and electr

158 did not detect cells resembling epidermis or root cap, suggesting that outer tissues may form later,

159 The plant root cap, surrounding the very tip of the growing root,

160 development of a lateral polarity across the root cap that allows for the establishment of a lateral

161 On the upper surface of the root cap, the change from the endogenous current has a d

162 igrations appeared to be directed toward the root cap, the point of "first contact," before the subse

163 AUX1 localization to columella and lateral root cap tissues of the Arabidopsis root apex reveals th

164 nd PIN2 must transport auxin via the lateral root cap to elongating epidermal cells.

165 illustrated that EGT2 is expressed from the root cap to the elongation zone.

166 ty of the Arabidopsis (Arabidopsis thaliana) root cap to visualize the execution process of developme

167 The dynamics of root cap turnover may therefore coordinate primary root

168 f the graviperceptive columella cells of the root cap using laser ablation reduced the bending respon

169 tissues with active membrane flow, including root cap, vascular strands, and floral style would suppo

170 vement of plastids in columella cells of the root cap were measured in seedlings of wild-type, a redu

171 cs of the gravity sensing mechanism in maize root caps were investigated using a bioelectric current

172 ng takes place in the columella cells of the root cap, where sedimentation of starch-filled plastids

173 ue and was asymmetrically distributed in the root cap, with greatest expression in the cells which ma