Effects of exogenously applied growth regulators on shoot growth of inbred lines of Plantago major differing in relative growth rate: differential response to gibberellic acid and (2‐chloroethyl)‐trimethyl‐ammonium chloride

Paul Dijkstra, Pieter J C Kuiper

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18 Citations (Scopus)

Abstract

The possibility of modulating shoot growth charaeteristics of seedlings of two inbred lines of Plantago major L., differing in relative growth rate (RGR), by exogenously applied 6‐benzylaminopurine (BA), α‐naphthalene acetic acid (NAA), (gibberellic acid (GA3) and (2‐chloroethyl)‐trimethyl‐ammonium chloride (CCC) was investigated. BA completely inhibited growth of the shoot at a concentration of 1 mM, while lower concentrations had no effect. NAA reduced growth of the shoot at 10 üM, while 1 mM completely inhibited growth. Addition of 10 μM GA3 or higher stimulated shoot fresh weight up to 20% and leaf area up to 30% for the slow growing inbred line (W9), but less for the fast growing line (A4). Application of 1 mM CCC, an inhibitor of gibberellin metabolism, reduced growth of both inbred lines, but to a larger extent in the fast growing seedlings. The lower shoot growth of W9 was associated with a lower specific leaf area (SLA) and a higher dry matter percentage of the shoot, as compared with A4. NAA reduced growth by reducing SLA and increasing leaf thickness, but the percentage dry matter of the leaves was unaffected. Stimulation of the shoot growth by GA3 application was associated with higher SLA and lower dry matter percentage. Application of CCC had opposite effects on SLA and dry matter percentage as compared with GA3. GA seems to be involved in the regulation of at least part of the genetic difference in RGR in Plantago major.

Original languageEnglish (US)
Pages (from-to)512-518
Number of pages7
JournalPhysiologia Plantarum
Volume77
Issue number4
DOIs
StatePublished - 1989
Externally publishedYes

Fingerprint

Plantago major
Plantago
growth regulators
gibberellic acid
inbred lines
Chlorides
chlorides
shoots
leaf area
Growth
naphthaleneacetic acid
Acetic Acid
Seedlings
gibberellins
Gibberellins
seedling growth
leaves
metabolism
seedlings

Keywords

  • (2‐chloroethyl)‐trimethyl‐ammonium chloride
  • Allocation pattern
  • CCC
  • gibberellin
  • plant growth regulators
  • Plantago major
  • relative growth rate
  • shoot growth
  • specific leaf area

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

Cite this

@article{a9dddc2337e4441f9efcd9fab6d04d0c,
title = "Effects of exogenously applied growth regulators on shoot growth of inbred lines of Plantago major differing in relative growth rate: differential response to gibberellic acid and (2‐chloroethyl)‐trimethyl‐ammonium chloride",
abstract = "The possibility of modulating shoot growth charaeteristics of seedlings of two inbred lines of Plantago major L., differing in relative growth rate (RGR), by exogenously applied 6‐benzylaminopurine (BA), α‐naphthalene acetic acid (NAA), (gibberellic acid (GA3) and (2‐chloroethyl)‐trimethyl‐ammonium chloride (CCC) was investigated. BA completely inhibited growth of the shoot at a concentration of 1 mM, while lower concentrations had no effect. NAA reduced growth of the shoot at 10 {\"u}M, while 1 mM completely inhibited growth. Addition of 10 μM GA3 or higher stimulated shoot fresh weight up to 20{\%} and leaf area up to 30{\%} for the slow growing inbred line (W9), but less for the fast growing line (A4). Application of 1 mM CCC, an inhibitor of gibberellin metabolism, reduced growth of both inbred lines, but to a larger extent in the fast growing seedlings. The lower shoot growth of W9 was associated with a lower specific leaf area (SLA) and a higher dry matter percentage of the shoot, as compared with A4. NAA reduced growth by reducing SLA and increasing leaf thickness, but the percentage dry matter of the leaves was unaffected. Stimulation of the shoot growth by GA3 application was associated with higher SLA and lower dry matter percentage. Application of CCC had opposite effects on SLA and dry matter percentage as compared with GA3. GA seems to be involved in the regulation of at least part of the genetic difference in RGR in Plantago major.",
keywords = "(2‐chloroethyl)‐trimethyl‐ammonium chloride, Allocation pattern, CCC, gibberellin, plant growth regulators, Plantago major, relative growth rate, shoot growth, specific leaf area",
author = "Paul Dijkstra and Kuiper, {Pieter J C}",
year = "1989",
doi = "10.1111/j.1399-3054.1989.tb05385.x",
language = "English (US)",
volume = "77",
pages = "512--518",
journal = "Physiologia Plantarum",
issn = "0031-9317",
publisher = "Wiley-Blackwell",
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TY - JOUR

T1 - Effects of exogenously applied growth regulators on shoot growth of inbred lines of Plantago major differing in relative growth rate

T2 - differential response to gibberellic acid and (2‐chloroethyl)‐trimethyl‐ammonium chloride

AU - Dijkstra, Paul

AU - Kuiper, Pieter J C

PY - 1989

Y1 - 1989

N2 - The possibility of modulating shoot growth charaeteristics of seedlings of two inbred lines of Plantago major L., differing in relative growth rate (RGR), by exogenously applied 6‐benzylaminopurine (BA), α‐naphthalene acetic acid (NAA), (gibberellic acid (GA3) and (2‐chloroethyl)‐trimethyl‐ammonium chloride (CCC) was investigated. BA completely inhibited growth of the shoot at a concentration of 1 mM, while lower concentrations had no effect. NAA reduced growth of the shoot at 10 üM, while 1 mM completely inhibited growth. Addition of 10 μM GA3 or higher stimulated shoot fresh weight up to 20% and leaf area up to 30% for the slow growing inbred line (W9), but less for the fast growing line (A4). Application of 1 mM CCC, an inhibitor of gibberellin metabolism, reduced growth of both inbred lines, but to a larger extent in the fast growing seedlings. The lower shoot growth of W9 was associated with a lower specific leaf area (SLA) and a higher dry matter percentage of the shoot, as compared with A4. NAA reduced growth by reducing SLA and increasing leaf thickness, but the percentage dry matter of the leaves was unaffected. Stimulation of the shoot growth by GA3 application was associated with higher SLA and lower dry matter percentage. Application of CCC had opposite effects on SLA and dry matter percentage as compared with GA3. GA seems to be involved in the regulation of at least part of the genetic difference in RGR in Plantago major.

AB - The possibility of modulating shoot growth charaeteristics of seedlings of two inbred lines of Plantago major L., differing in relative growth rate (RGR), by exogenously applied 6‐benzylaminopurine (BA), α‐naphthalene acetic acid (NAA), (gibberellic acid (GA3) and (2‐chloroethyl)‐trimethyl‐ammonium chloride (CCC) was investigated. BA completely inhibited growth of the shoot at a concentration of 1 mM, while lower concentrations had no effect. NAA reduced growth of the shoot at 10 üM, while 1 mM completely inhibited growth. Addition of 10 μM GA3 or higher stimulated shoot fresh weight up to 20% and leaf area up to 30% for the slow growing inbred line (W9), but less for the fast growing line (A4). Application of 1 mM CCC, an inhibitor of gibberellin metabolism, reduced growth of both inbred lines, but to a larger extent in the fast growing seedlings. The lower shoot growth of W9 was associated with a lower specific leaf area (SLA) and a higher dry matter percentage of the shoot, as compared with A4. NAA reduced growth by reducing SLA and increasing leaf thickness, but the percentage dry matter of the leaves was unaffected. Stimulation of the shoot growth by GA3 application was associated with higher SLA and lower dry matter percentage. Application of CCC had opposite effects on SLA and dry matter percentage as compared with GA3. GA seems to be involved in the regulation of at least part of the genetic difference in RGR in Plantago major.

KW - (2‐chloroethyl)‐trimethyl‐ammonium chloride

KW - Allocation pattern

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KW - gibberellin

KW - plant growth regulators

KW - Plantago major

KW - relative growth rate

KW - shoot growth

KW - specific leaf area

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U2 - 10.1111/j.1399-3054.1989.tb05385.x

DO - 10.1111/j.1399-3054.1989.tb05385.x

M3 - Article

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VL - 77

SP - 512

EP - 518

JO - Physiologia Plantarum

JF - Physiologia Plantarum

SN - 0031-9317

IS - 4

ER -