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The role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)

Leaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM... Full description

Journal Title: Journal of plant growth regulation 1992, Vol.11 (2), p.99-103
Main Author: Brock, T.G. (University of Michigan, Ann Arbor, MI)
Other Authors: Burg, J , Ghosheh, N.S , Kaufman, P.B
Format: Electronic Article Electronic Article
Language: English
Subjects:
IAA
ION
Publisher: Legacy CDMS: Springer
ID: ISSN: 0721-7595
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title: The role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)
format: Article
creator:
  • Brock, T.G. (University of Michigan, Ann Arbor, MI)
  • Burg, J
  • Ghosheh, N.S
  • Kaufman, P.B
subjects:
  • ACIDE INDOLACETIQUE
  • ACIDO INDOLACETICO
  • Agronomy. Soil science and plant productions
  • ANATOMIA DE LA PLANTA
  • ANATOMIE VEGETALE
  • Avena - drug effects
  • Avena - growth & development
  • AVENA SATIVA
  • Biological and medical sciences
  • CALCIO
  • CALCIUM
  • Calcium - physiology
  • calcium channel blockers
  • Calcium Channel Blockers - pharmacology
  • Chemical agents
  • CHLORIDES
  • CHLORURE
  • CLORUROS
  • CRECIMIENTO
  • CROISSANCE
  • egta
  • Egtazic Acid - pharmacology
  • ELEMENTOS DE TIERRAS RARAS
  • FEUILLE
  • Fundamental and applied biological sciences. Psychology
  • GEOTAXIS
  • GRAVIDEZ
  • GRAVITE
  • gravitropism
  • Gravitropism - drug effects
  • Gravitropism - physiology
  • GRAVITY
  • GROWTH
  • HOJAS
  • IAA
  • Indoleacetic Acids - pharmacology
  • INHIBICION
  • INHIBITION
  • ION
  • ION UPTAKE
  • IONES
  • IONS
  • LANTHANUM
  • Lanthanum - pharmacology
  • LEAVES
  • Life Sciences (General)
  • METAL DES TERRES RARES
  • MOUVEMENT
  • MOVEMENT
  • MOVIMIENTO
  • nifedipine
  • Nifedipine - pharmacology
  • PLANT ANATOMY
  • PLANT GROWTH SUBSTANCES
  • Plant physiology and development
  • PULVINI
  • Pulvinus - drug effects
  • Pulvinus - growth & development
  • RARE EARTH ELEMENTS
  • Space life sciences
  • SUBSTANCE DE CROISSANCE VEGETALE
  • SUSTANCIAS DE CRECIMIENTO VEGETAL
  • TROPISME
  • TROPISMO
  • TROPISMS
  • Vegetative apparatus, growth and morphogenesis. Senescence
  • verapamil
  • Verapamil - pharmacology
ispartof: Journal of plant growth regulation, 1992, Vol.11 (2), p.99-103
description: Leaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM CaCl2) significantly inhibited IAA-induced growth in upright pulvini but had no effect on growth induced by either gravity or gravity plus IAA. Calcium alone had no effect on upright pulvini. The calcium chelator EGTA alone (10 mM) stimulated growth in upright pulvini. However, EGTA had no effect on either IAA- or gravity-induced growth but slightly diminished growth in IAA-treated gravistimulated pulvini. The calcium channel blockers lanthanum chloride (25 mM), verapamil (2.5 mM), and nifedipine (2.5 mM) greatly inhibited growth as induced by IAA (> or = 50% inhibition) or IAA plus gravity (20% inhibition) but had no effect on gravistimulated pulvini. Combinations of channel blockers were similar in effect on IAA action as individual blockers. Since neither calcium ions nor EGTA significantly affected the graviresponse of pulvini, we conclude that apoplastic calcium is unimportant in leaf-sheath pulvinus gravitropism. The observation that calcium ions and calcium channel blockers inhibit IAA-induced growth, but have no effect on gravistimulated pulvini, further supports previous observations that gravistimulation alters the responsiveness of pulvini to IAA.
language: eng
source:
identifier: ISSN: 0721-7595
fulltext: no_fulltext
issn:
  • 0721-7595
  • 1435-8107
url: Link


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titleThe role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)
creatorBrock, T.G. (University of Michigan, Ann Arbor, MI) ; Burg, J ; Ghosheh, N.S ; Kaufman, P.B
creatorcontribBrock, T.G. (University of Michigan, Ann Arbor, MI) ; Burg, J ; Ghosheh, N.S ; Kaufman, P.B
descriptionLeaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM CaCl2) significantly inhibited IAA-induced growth in upright pulvini but had no effect on growth induced by either gravity or gravity plus IAA. Calcium alone had no effect on upright pulvini. The calcium chelator EGTA alone (10 mM) stimulated growth in upright pulvini. However, EGTA had no effect on either IAA- or gravity-induced growth but slightly diminished growth in IAA-treated gravistimulated pulvini. The calcium channel blockers lanthanum chloride (25 mM), verapamil (2.5 mM), and nifedipine (2.5 mM) greatly inhibited growth as induced by IAA (> or = 50% inhibition) or IAA plus gravity (20% inhibition) but had no effect on gravistimulated pulvini. Combinations of channel blockers were similar in effect on IAA action as individual blockers. Since neither calcium ions nor EGTA significantly affected the graviresponse of pulvini, we conclude that apoplastic calcium is unimportant in leaf-sheath pulvinus gravitropism. The observation that calcium ions and calcium channel blockers inhibit IAA-induced growth, but have no effect on gravistimulated pulvini, further supports previous observations that gravistimulation alters the responsiveness of pulvini to IAA.
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0ISSN: 0721-7595
1EISSN: 1435-8107
2DOI: 10.1007/BF00198021
3PMID: 11536939
4CODEN: JPGRDI
languageeng
publisherLegacy CDMS: Springer
subjectACIDE INDOLACETIQUE ; ACIDO INDOLACETICO ; Agronomy. Soil science and plant productions ; ANATOMIA DE LA PLANTA ; ANATOMIE VEGETALE ; Avena - drug effects ; Avena - growth & development ; AVENA SATIVA ; Biological and medical sciences ; CALCIO ; CALCIUM ; Calcium - physiology ; calcium channel blockers ; Calcium Channel Blockers - pharmacology ; Chemical agents ; CHLORIDES ; CHLORURE ; CLORUROS ; CRECIMIENTO ; CROISSANCE ; egta ; Egtazic Acid - pharmacology ; ELEMENTOS DE TIERRAS RARAS ; FEUILLE ; Fundamental and applied biological sciences. Psychology ; GEOTAXIS ; GRAVIDEZ ; GRAVITE ; gravitropism ; Gravitropism - drug effects ; Gravitropism - physiology ; GRAVITY ; GROWTH ; HOJAS ; IAA ; Indoleacetic Acids - pharmacology ; INHIBICION ; INHIBITION ; ION ; ION UPTAKE ; IONES ; IONS ; LANTHANUM ; Lanthanum - pharmacology ; LEAVES ; Life Sciences (General) ; METAL DES TERRES RARES ; MOUVEMENT ; MOVEMENT ; MOVIMIENTO ; nifedipine ; Nifedipine - pharmacology ; PLANT ANATOMY ; PLANT GROWTH SUBSTANCES ; Plant physiology and development ; PULVINI ; Pulvinus - drug effects ; Pulvinus - growth & development ; RARE EARTH ELEMENTS ; Space life sciences ; SUBSTANCE DE CROISSANCE VEGETALE ; SUSTANCIAS DE CRECIMIENTO VEGETAL ; TROPISME ; TROPISMO ; TROPISMS ; Vegetative apparatus, growth and morphogenesis. Senescence ; verapamil ; Verapamil - pharmacology
ispartofJournal of plant growth regulation, 1992, Vol.11 (2), p.99-103
rights1992 INIST-CNRS
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0Brock, T.G. (University of Michigan, Ann Arbor, MI)
1Burg, J
2Ghosheh, N.S
3Kaufman, P.B
title
0The role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)
1Journal of plant growth regulation
addtitleJ Plant Growth Regul
descriptionLeaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM CaCl2) significantly inhibited IAA-induced growth in upright pulvini but had no effect on growth induced by either gravity or gravity plus IAA. Calcium alone had no effect on upright pulvini. The calcium chelator EGTA alone (10 mM) stimulated growth in upright pulvini. However, EGTA had no effect on either IAA- or gravity-induced growth but slightly diminished growth in IAA-treated gravistimulated pulvini. The calcium channel blockers lanthanum chloride (25 mM), verapamil (2.5 mM), and nifedipine (2.5 mM) greatly inhibited growth as induced by IAA (> or = 50% inhibition) or IAA plus gravity (20% inhibition) but had no effect on gravistimulated pulvini. Combinations of channel blockers were similar in effect on IAA action as individual blockers. Since neither calcium ions nor EGTA significantly affected the graviresponse of pulvini, we conclude that apoplastic calcium is unimportant in leaf-sheath pulvinus gravitropism. The observation that calcium ions and calcium channel blockers inhibit IAA-induced growth, but have no effect on gravistimulated pulvini, further supports previous observations that gravistimulation alters the responsiveness of pulvini to IAA.
subject
0ACIDE INDOLACETIQUE
1ACIDO INDOLACETICO
2Agronomy. Soil science and plant productions
3ANATOMIA DE LA PLANTA
4ANATOMIE VEGETALE
5Avena - drug effects
6Avena - growth & development
7AVENA SATIVA
8Biological and medical sciences
9CALCIO
10CALCIUM
11Calcium - physiology
12calcium channel blockers
13Calcium Channel Blockers - pharmacology
14Chemical agents
15CHLORIDES
16CHLORURE
17CLORUROS
18CRECIMIENTO
19CROISSANCE
20egta
21Egtazic Acid - pharmacology
22ELEMENTOS DE TIERRAS RARAS
23FEUILLE
24Fundamental and applied biological sciences. Psychology
25GEOTAXIS
26GRAVIDEZ
27GRAVITE
28gravitropism
29Gravitropism - drug effects
30Gravitropism - physiology
31GRAVITY
32GROWTH
33HOJAS
34IAA
35Indoleacetic Acids - pharmacology
36INHIBICION
37INHIBITION
38ION
39ION UPTAKE
40IONES
41IONS
42LANTHANUM
43Lanthanum - pharmacology
44LEAVES
45Life Sciences (General)
46METAL DES TERRES RARES
47MOUVEMENT
48MOVEMENT
49MOVIMIENTO
50nifedipine
51Nifedipine - pharmacology
52PLANT ANATOMY
53PLANT GROWTH SUBSTANCES
54Plant physiology and development
55PULVINI
56Pulvinus - drug effects
57Pulvinus - growth & development
58RARE EARTH ELEMENTS
59Space life sciences
60SUBSTANCE DE CROISSANCE VEGETALE
61SUSTANCIAS DE CRECIMIENTO VEGETAL
62TROPISME
63TROPISMO
64TROPISMS
65Vegetative apparatus, growth and morphogenesis. Senescence
66verapamil
67Verapamil - pharmacology
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11435-8107
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1Burg, J
2Ghosheh, N.S
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titleThe role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)
authorBrock, T.G. (University of Michigan, Ann Arbor, MI) ; Burg, J ; Ghosheh, N.S ; Kaufman, P.B
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topic
0ACIDE INDOLACETIQUE
1ACIDO INDOLACETICO
2Agronomy. Soil science and plant productions
3ANATOMIA DE LA PLANTA
4ANATOMIE VEGETALE
5Avena - drug effects
6Avena - growth & development
7AVENA SATIVA
8Biological and medical sciences
9CALCIO
10CALCIUM
11Calcium - physiology
12calcium channel blockers
13Calcium Channel Blockers - pharmacology
14Chemical agents
15CHLORIDES
16CHLORURE
17CLORUROS
18CRECIMIENTO
19CROISSANCE
20egta
21Egtazic Acid - pharmacology
22ELEMENTOS DE TIERRAS RARAS
23FEUILLE
24Fundamental and applied biological sciences. Psychology
25GEOTAXIS
26GRAVIDEZ
27GRAVITE
28gravitropism
29Gravitropism - drug effects
30Gravitropism - physiology
31GRAVITY
32GROWTH
33HOJAS
34IAA
35Indoleacetic Acids - pharmacology
36INHIBICION
37INHIBITION
38ION
39ION UPTAKE
40IONES
41IONS
42LANTHANUM
43Lanthanum - pharmacology
44LEAVES
45Life Sciences (General)
46METAL DES TERRES RARES
47MOUVEMENT
48MOVEMENT
49MOVIMIENTO
50nifedipine
51Nifedipine - pharmacology
52PLANT ANATOMY
53PLANT GROWTH SUBSTANCES
54Plant physiology and development
55PULVINI
56Pulvinus - drug effects
57Pulvinus - growth & development
58RARE EARTH ELEMENTS
59Space life sciences
60SUBSTANCE DE CROISSANCE VEGETALE
61SUSTANCIAS DE CRECIMIENTO VEGETAL
62TROPISME
63TROPISMO
64TROPISMS
65Vegetative apparatus, growth and morphogenesis. Senescence
66verapamil
67Verapamil - pharmacology
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atitleThe role of calcium in growth induced by indole-3-acetic acid and gravity in the leaf-sheath pulvinus of oat (Avena sativa)
jtitleJournal of plant growth regulation
addtitleJ Plant Growth Regul
date1992
risdate1992
volume11
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abstractLeaf-sheath pulvini of excised segments from oat (Avena sativa L.) were induced to grow by treatment with 10 micromoles indole-3-acetic acid (IAA), gravistimulation, or both, and the effects of calcium, EGTA, and calcium channel blockers on growth were evaluated. Unilaterally applied calcium (10 mM CaCl2) significantly inhibited IAA-induced growth in upright pulvini but had no effect on growth induced by either gravity or gravity plus IAA. Calcium alone had no effect on upright pulvini. The calcium chelator EGTA alone (10 mM) stimulated growth in upright pulvini. However, EGTA had no effect on either IAA- or gravity-induced growth but slightly diminished growth in IAA-treated gravistimulated pulvini. The calcium channel blockers lanthanum chloride (25 mM), verapamil (2.5 mM), and nifedipine (2.5 mM) greatly inhibited growth as induced by IAA (> or = 50% inhibition) or IAA plus gravity (20% inhibition) but had no effect on gravistimulated pulvini. Combinations of channel blockers were similar in effect on IAA action as individual blockers. Since neither calcium ions nor EGTA significantly affected the graviresponse of pulvini, we conclude that apoplastic calcium is unimportant in leaf-sheath pulvinus gravitropism. The observation that calcium ions and calcium channel blockers inhibit IAA-induced growth, but have no effect on gravistimulated pulvini, further supports previous observations that gravistimulation alters the responsiveness of pulvini to IAA.
copLegacy CDMS
pubSpringer
pmid11536939
doi10.1007/BF00198021
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