Gibberellin and auxin contents and ethylene production in the hypocotyls of green and etiolated bean plants treated with chlorocholine chloride

Nagy, M.; Tari, Irma

doi:10.1007/bf02902311

Cited by 3 publications

(1 citation statement)

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“…Snir and Kessler (1975) and Guinazu et al (1988) found that CCC stimulated the inactivation of GA by glucosidation, besides its effect on the biosynthesis of GAs. An effect of CCC on the transport of GA out of the growing zones was also noted, although the total level of GA increased (Nagy and Tari 1987). These side-effects decreased the concentration of active gibberellins in the growing parts of plants, and thus would not alter the interpretation of our results.…”

Section: Ga Inhibition By CCCsupporting

confidence: 53%

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

Dijkstra

Kuiper

1989

Physiologia Plantarum

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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.

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Section: Ga Inhibition By CCCsupporting

confidence: 53%