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Strigolactones affect lateral root formation and root-hair elongation in Arabidopsis

Strigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the a... Full description

Journal Title: Planta 2011-01-01, Vol.233 (1), p.209-216
Main Author: KAPULNIK, Yoram
Other Authors: DELAUX, Pierre-Marc , BEECKMAN, Tom , DOR, Evgenia , HERSHENHORN, Joseph , KOLTAI, Hinanit , RESNICK, Natalie , MAYZLISH-GATI, Einav , WININGER, Smadar , BHATTACHARYA, Chaitali , SEJALON-DELMAS, Nathalie , COMBIER, Jean-Philippe , BECARD, Guillaume , BELAUSOV, Eduard
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Berlin/Heidelberg: Springer-Verlag
ID: ISSN: 0032-0935
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title: Strigolactones affect lateral root formation and root-hair elongation in Arabidopsis
format: Article
creator:
  • KAPULNIK, Yoram
  • DELAUX, Pierre-Marc
  • BEECKMAN, Tom
  • DOR, Evgenia
  • HERSHENHORN, Joseph
  • KOLTAI, Hinanit
  • RESNICK, Natalie
  • MAYZLISH-GATI, Einav
  • WININGER, Smadar
  • BHATTACHARYA, Chaitali
  • SEJALON-DELMAS, Nathalie
  • COMBIER, Jean-Philippe
  • BECARD, Guillaume
  • BELAUSOV, Eduard
subjects:
  • Agriculture
  • Analysis
  • Analysis of Variance
  • Arabidopsis - drug effects
  • Arabidopsis - embryology
  • Arabidopsis thaliana
  • Auxins
  • Biological and medical sciences
  • Biomedical and Life Sciences
  • Branching
  • Carotenoids
  • Developmental biology
  • Ecology
  • Forestry
  • Fundamental and applied biological sciences. Psychology
  • Lactones - pharmacology
  • Life Sciences
  • Mutation - genetics
  • Mycorrhizal fungi
  • Organogenesis - drug effects
  • Phytochemistry
  • Plant genetics
  • Plant growth regulators
  • Plant hormones
  • Plant roots
  • Plant Roots - anatomy & histology
  • Plant Roots - drug effects
  • Plant Roots - embryology
  • Plant Sciences
  • Plants
  • RAPID COMMUNICATION
  • Root hairs
  • Seedlings
  • Universities and colleges
ispartof: Planta, 2011-01-01, Vol.233 (1), p.209-216
description: Strigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the absence of SLs enhances lateral root formation. In accordance, roots grown in the presence of GR24, a synthetic bioactive SL, showed reduced number of lateral roots in WT and in max3-11 and max4-1 mutants, deficient in SL synthesis. The GR24-induced reduction in lateral roots was not apparent in the SL signaling mutant max2-1. Moreover, GR24 led to increased root-hair length in WT and in max3-11 and max4-1 mutants, but not in max2-1. SLs effect on lateral root formation and root-hair elongation may suggest a role for SLs in the regulation of root development; perhaps, as a response to growth conditions.
language: eng
source:
identifier: ISSN: 0032-0935
fulltext: no_fulltext
issn:
  • 0032-0935
  • 1432-2048
url: Link


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titleStrigolactones affect lateral root formation and root-hair elongation in Arabidopsis
creatorKAPULNIK, Yoram ; DELAUX, Pierre-Marc ; BEECKMAN, Tom ; DOR, Evgenia ; HERSHENHORN, Joseph ; KOLTAI, Hinanit ; RESNICK, Natalie ; MAYZLISH-GATI, Einav ; WININGER, Smadar ; BHATTACHARYA, Chaitali ; SEJALON-DELMAS, Nathalie ; COMBIER, Jean-Philippe ; BECARD, Guillaume ; BELAUSOV, Eduard
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descriptionStrigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the absence of SLs enhances lateral root formation. In accordance, roots grown in the presence of GR24, a synthetic bioactive SL, showed reduced number of lateral roots in WT and in max3-11 and max4-1 mutants, deficient in SL synthesis. The GR24-induced reduction in lateral roots was not apparent in the SL signaling mutant max2-1. Moreover, GR24 led to increased root-hair length in WT and in max3-11 and max4-1 mutants, but not in max2-1. SLs effect on lateral root formation and root-hair elongation may suggest a role for SLs in the regulation of root development; perhaps, as a response to growth conditions.
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subjectAgriculture ; Analysis ; Analysis of Variance ; Arabidopsis - drug effects ; Arabidopsis - embryology ; Arabidopsis thaliana ; Auxins ; Biological and medical sciences ; Biomedical and Life Sciences ; Branching ; Carotenoids ; Developmental biology ; Ecology ; Forestry ; Fundamental and applied biological sciences. Psychology ; Lactones - pharmacology ; Life Sciences ; Mutation - genetics ; Mycorrhizal fungi ; Organogenesis - drug effects ; Phytochemistry ; Plant genetics ; Plant growth regulators ; Plant hormones ; Plant roots ; Plant Roots - anatomy & histology ; Plant Roots - drug effects ; Plant Roots - embryology ; Plant Sciences ; Plants ; RAPID COMMUNICATION ; Root hairs ; Seedlings ; Universities and colleges
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descriptionStrigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the absence of SLs enhances lateral root formation. In accordance, roots grown in the presence of GR24, a synthetic bioactive SL, showed reduced number of lateral roots in WT and in max3-11 and max4-1 mutants, deficient in SL synthesis. The GR24-induced reduction in lateral roots was not apparent in the SL signaling mutant max2-1. Moreover, GR24 led to increased root-hair length in WT and in max3-11 and max4-1 mutants, but not in max2-1. SLs effect on lateral root formation and root-hair elongation may suggest a role for SLs in the regulation of root development; perhaps, as a response to growth conditions.
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18Mycorrhizal fungi
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20Phytochemistry
21Plant genetics
22Plant growth regulators
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titleStrigolactones affect lateral root formation and root-hair elongation in Arabidopsis
authorKAPULNIK, Yoram ; DELAUX, Pierre-Marc ; BEECKMAN, Tom ; DOR, Evgenia ; HERSHENHORN, Joseph ; KOLTAI, Hinanit ; RESNICK, Natalie ; MAYZLISH-GATI, Einav ; WININGER, Smadar ; BHATTACHARYA, Chaitali ; SEJALON-DELMAS, Nathalie ; COMBIER, Jean-Philippe ; BECARD, Guillaume ; BELAUSOV, Eduard
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abstractStrigolactones (SLs) have been proposed as a new group of plant hormones, inhibiting shoot branching, and as signaling molecules for plant interactions. Here, we present evidence for effects of SLs on root development. The analysis of mutants flawed in SLs synthesis or signaling suggested that the absence of SLs enhances lateral root formation. In accordance, roots grown in the presence of GR24, a synthetic bioactive SL, showed reduced number of lateral roots in WT and in max3-11 and max4-1 mutants, deficient in SL synthesis. The GR24-induced reduction in lateral roots was not apparent in the SL signaling mutant max2-1. Moreover, GR24 led to increased root-hair length in WT and in max3-11 and max4-1 mutants, but not in max2-1. SLs effect on lateral root formation and root-hair elongation may suggest a role for SLs in the regulation of root development; perhaps, as a response to growth conditions.
copBerlin/Heidelberg
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pmid21080198
doi10.1007/s00425-010-1310-y