Effect of some (2-chloroethyl) trimethylammonium chloride analogs and other growth retardants on gibberellin biosynthesis in Fusarium moniliforme.

Hano, Hiroshi; Lang, Anton

doi:10.1104/pp.40.1.176

Cited by 112 publications

(37 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In all cases, the I50 value lies in the order of magnitude of 10-6 M. The phosphonium compound chlorphonium chloride is known to be rapidly broken down in cultures of G. fujikuroi (9). This is also reflected by the results obtained in this investigation: no pronounced influence on GA formation could be detected in S. manihoticola.…”

Section: Extraction and Analysis Of Gassupporting

confidence: 72%

“…I5o values for CCC of approximately 6 x 10-7 M and 3 x 10-6 M, respectively, have been reported (9,19). The present result (see Table I) is approximately the mean of these values.…”

Section: Extraction and Analysis Of Gassupporting

confidence: 67%

“…These observations indicate that the biosynthesis of a precursor common to all of these GAs is inhibited. The same conclusion has been drawn for CCC and related compounds in G. fujikuroi (9) and fits also with the known mode of action of these compounds in higher plants (8,10,22).…”

Section: Extraction and Analysis Of Gassupporting

confidence: 61%

“…BAS 110 .. W, are more variable. A parallel between growth-retarding activity and inhibition of GA biosynthesis in G. fujikuroi has also been reported previously for CCC and related compounds (9); however, the scales employed in this investigation were less defined.…”

Section: Extraction and Analysis Of Gasmentioning

confidence: 78%

See 3 more Smart Citations

Inhibition of Gibberellin Production in the Fungi Gibberella fujikuroi and Sphaceloma manihoticola by Plant Growth Retardants

Rademacher¹

1992

Plant Physiol.

View full text Add to dashboard Cite

The effect of different types of plant growth retardants on fungal gibberellin (GA) formation has been studied in cultures of Gibberella fujikuroi and Sphaceloma manihoticola. Quaternary ammonium compounds (chlormequat chloride, mepiquat chloride, Amo-1618), triazoles (uniconazole and several experimental compounds), and the norbornanodiazetine tetcyclacis inhibited GA biosynthesis in both fungal species. Concentrations between 2 x 1iO`and 10-M were required for a 50% inhibition of the production of gibberellin A3 in Gibberella fujikuroi and of giberellin A4 in Sphaceloma manihoticola. The formation of other prominent GAs was affected at a similar degree of intensity. Tetcyclacis was the most active compound in both fungi. Compared to the growth retardants mentioned above, the biological activity of chlorphonium chloride was low. The acylcyclohexanediones prohexadione and LAB 198 999 had virtually no activity. Most likely, this lack of activity is due to a rapid metabolism of the compounds in the cultures. For the triazole-type compounds and tetcyclacis, a relatively distinct correlation exists in their ability to inhibit GA formation in fungal cultures, to block ent-kaurene oxygenase in a cell-free system, and to reduce shoot growth of rice seedlings. Due to differences in their metabolic fate and species specificities, such conclusions cannot be made for the other compounds.Plant growth retardants play an important role in agriculture and horticulture in reducing unwanted shoot elongation (21). At present, five major groups have been recognized. Ethylene-releasing compounds such as ethephon reduce shoot elongation mainly by inhibiting cell division. Daminozide most likely acts by causing a more rapid inactivation of GAs1 and by inhibiting GA translocation (31). Quaternary ammonium and phosphonium compounds (e.g. CCC, mepiquat chloride, Amo-1618, and chlorphonium chloride), compounds with a nitrogen-containing heterocycle (e.g. ancymidol, tetcyclacis, paclobutrazol, uniconazole, and inabenfide), and acylcyclohexanediones (e.g. prohexadione, cimectacarb, and LAB 198 999) inhibit the biosynthesis of GAs. It is known that representatives of the latter three groups block, respectively, the cyclization of geranylgeranyl pyrophosphate via copalyl pyrophosphate into ent-kaurene, the oxidative reactions from ent-kaurene to ent-kaurenoic acid, or 3,B-hydrox-

show abstract

Section: Extraction and Analysis Of Gassupporting

confidence: 72%

“…I5o values for CCC of approximately 6 x 10-7 M and 3 x 10-6 M, respectively, have been reported (9,19). The present result (see Table I) is approximately the mean of these values.…”

Section: Extraction and Analysis Of Gassupporting

confidence: 67%

Section: Extraction and Analysis Of Gassupporting

confidence: 61%

Section: Extraction and Analysis Of Gasmentioning

confidence: 78%

See 2 more Smart Citations

Inhibition of Gibberellin Production in the Fungi Gibberella fujikuroi and Sphaceloma manihoticola by Plant Growth Retardants

Rademacher¹

1992

Plant Physiol.

View full text Add to dashboard Cite

show abstract

“…Several types of growth retardants are known to suppress GA biosynthesis, including members of the choline, piperidine, and phosphonium classes of retardants (13). Hydrazide retardants may (22) or may not (8) suppress GA biosynthesis. At least one retardant, chlorflurenol, is a clear exception and has not been found to suppress GA biosynthesis (18).…”

Section: Discussionmentioning

confidence: 99%

Antagonism of Some Gibberellin Actions by a Substituted Pyrimidine

Leopold

1971

Plant Physiol.

View full text Add to dashboard Cite

From a comparison of the effects of seven growth retardants and abscisic acid (ABA) on various growth systems, it was found that the gibberellin-regulated growth of lettuce hypocotyls was uniquely inhibited by the growth retardant, a-cyclopropyl-a-(4-methoxyphenyl)-5-pyrimidine methanol (EI-531). Auxin-regulated growth of coleoptile sections was inhibited by Phosfon and only slightly by EI-531 and Alar. Cytokinin-regnlated growth of Xanthium cotyledons showed little or no inhibition by any of the retardants. ABA was inhibitory in all three types of tests. The distinctive effects of EI-531 against gibberellin-stimulated growth and the general ability of gibberellic acid to relieve EL-531 inhibition suggest that this retardant acts in part against the gibberellin-stimulated growth system, but at a locus which discriminates between growth and nongrowth functions of gibberellic acid. It shows little or no antagonism of gibberellin actions which do not involve growth: the barley endosperm test and the Rumex leaf senescence test.The advent of effective growth retardants over the last several years has provided not only new possibilities for artificially controlling plant growth, but also possibilities for analyzing the endogenous controls of plant growth. The most effective retardants include certain phosphoniums, hydrazides, substituted fluorenes, and several types of quaternary ammonium compounds including carbamates, cholines, and pi-

show abstract

Das hormonale System der Pflanzen

Linser

1966

Angewandte Chemie

View full text Add to dashboard Cite

in der Regel sehr viele reaktive Stellen aufweisen, konnen die Umsetzungen in Bezug auf die einzelnen Molekule vollstandig oder auch unvollstiindig sein, sie miissen nur bei allen Molekulen an den gleichen Stellen verlaufen. Sind die Umsetzungen in Bezug auf die Gesamtzahl der Molekule eines Polymers unvollstiindig, so hat man noch die Moglichkcit, die einheitlich umgesetzten Anteile zu isolieren.

show abstract

Effect of some (2-chloroethyl) trimethylammonium chloride analogs and other growth retardants on gibberellin biosynthesis in Fusarium moniliforme.

Cited by 112 publications

References 12 publications

Inhibition of Gibberellin Production in the Fungi Gibberella fujikuroi and Sphaceloma manihoticola by Plant Growth Retardants

Inhibition of Gibberellin Production in the Fungi Gibberella fujikuroi and Sphaceloma manihoticola by Plant Growth Retardants

Antagonism of Some Gibberellin Actions by a Substituted Pyrimidine

Das hormonale System der Pflanzen

Contact Info

Product

Resources

About