ライフサイエンスコーパス: root cap

1 fter laser ablation removed the meristem and root cap.

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

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

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

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

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

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

8 edominantly found in the elongation zone and root cap.

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

10 atocytes to auxin redistribution through the root cap.

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

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

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

14 utoregulated in a specific region within the root cap.

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

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

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

18 Root cap amyloplasts in mar2 arg1 appear ultrastructural

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

127 When this root cap secretome was proteolytically degraded during i

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

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

130 Root caps sense and transmit environmental signals, synt

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

132 1-h period when no cell death occurs yielded root cap slime containing (32)P-labeled exDNA.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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