Effects of ethylene on the tuberization of potato (Solanum tuberosum) cuttings

Vreugdenhil, D.; Dijk, W. van

doi:10.1007/bf00040914

Cited by 27 publications

(13 citation statements)

References 23 publications

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“…Thus, it seems that IAA has a significant negative effect on elongation under both tuber-inducing and -noninducing conditions. We assume that this inhibition of tuber formation is due to the well-known effect of stimulation of ethylene production by IAA, which in turn reduces stolon elongation (Vreugdenhil and van Dijk, 1989). IAA would, therefore, indirectly favor tuber formation by blocking stolon elongation and counteracting effects of endogenous GA.…”

Section: Cytokinins and Iaamentioning

confidence: 99%

The Role of Gibberellin, Abscisic Acid, and Sucrose in the Regulation of Potato Tuber Formation in Vitro1

et al. 1998

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The effects of plant hormones and sucrose (Suc) on potato (Solanum tuberosum L.) tuberization were studied using in vitro cultured single-node cuttings. Tuber-inducing (high Suc) and -noninducing (low Suc or high Suc plus gibberellin [GA]) media were tested. Tuberization frequencies, tuber widths, and stolon lengths were measured during successive stages of development. Endogenous GAs and abscisic acid (ABA) were identified and quantified by high-performance liquid chromatography and gas chromatography-mass spectrometry. Exogenous GA 4/7 promoted stolon elongation and inhibited tuber formation, whereas exogenous ABA stimulated tuberization and reduced stolon length. Indoleacetic acid-containing media severely inhibited elongation of stolons and smaller sessile tubers were formed. Exogenous cytokinins did not affect stolon elongation and tuber formation. Endogenous GA 1 level was high during stolon elongation and decreased when stolon tips started to swell under inducing conditions, whereas it remained high under noninducing conditions. GA 1 levels were negatively correlated with Suc concentration in the medium. We conclude that GA 1 is likely to be the active GA during tuber formation. Endogenous ABA levels decreased during stolon and tuber development, and ABA levels were similar under inducing and noninducing conditions. Our results indicate that GA is a dominant regulator in tuber formation: ABA stimulates tuberization by counteracting GA, and Suc regulates tuber formation by influencing GA levels.

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Section: Cytokinins and Iaamentioning

confidence: 99%

The Role of Gibberellin, Abscisic Acid, and Sucrose in the Regulation of Potato Tuber Formation in Vitro1

et al. 1998

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“…The hormones were added to Murashige and Skoog medium supplemented with 1% (w/v) Suc in the following concentrations: 25 mg L Ϫ1 benzylaminopurine, 50 m dicamba, 50 m 2,4-D, 7 mm ethephon, 50 m kinetine, 100 m abscisic acid, 200 m methyl jasmonate, 5 mg L Ϫ1 ancymidol, 1.75 mg mL Ϫ1 2-chloroethyltrimethylammonium chloride, and 50 m GA 4 ϩ 7 . The hormones and sugars were chosen based on their influence (inducing or inhibiting) in gene expression during the potato life cycle (Li, 1985;Vreugdenhil and van Dijk, 1989;Mü ller-Rö ber et al, 1990;Perl et al, 1991;Jackson and Willmitzer, 1994). Both dicamba and 2,4-D are synthetic auxins, ethefon is a substance that releases ethylene, whereas ancymidol and 2-chloroethyltrimethylammonium chloride are anti-gibberellins.…”

Section: In Vitro Plants Grown On Different Mediamentioning

confidence: 99%

Isolation of a Gene Encoding a Copper Chaperone for the Copper/Zinc Superoxide Dismutase and Characterization of Its Promoter in Potato

et al. 2003

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Gene expression during the potato (Solanum tuberosum) tuber lifecycle was monitored by cDNA-amplified fragment-length polymorphism, and several differentially expressed transcript-derived fragments were isolated. One fragment, named TDFL431, showed high homology to a copper (Cu) chaperone for Cu/zinc superoxide dismutase (CCS). The Ccs protein is responsible for the delivery of Cu to the Cu/zinc superoxide dismutase enzyme. The potato CCS (StCCS) full-length gene was isolated, and its sequence was compared with CCSs from other species. The promoter region of this gene was isolated, fused to the firefly luciferase coding sequence, and used for transformation of potato plants. The highest level of StCCSluciferase expression was detected in the cortex of stem (like) tissues, such as stem nodes, stolons, and tubers; lower levels were detected in roots and flowers. The StCCS promoter contains regions highly homologous to several plant cis-acting elements. Three of them are related to auxin response, whereas four others are related to response to various stresses. Induction of the StCCS promoter was analyzed on 18 media, differing in hormone, sugar, and Cu content. StCCS expression was induced by auxin, gibberellins (GA 4 ϩ 7 ), fructose, sucrose, and glucose and was inhibited by relatively high concentrations of Cu.

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“…Plant hormones play an important role in growth and organ formation. The possible roles of five categories of endogenous hormones have been extensively studied: auxins (IAA), zeatin (ZT), gibberellins (GA 3 ), abscisic acid (ABA) and ethylene (Abdala et al, 2002;Dermastia et al, 1996;Vreugdenhil and Dijk, 1989;Xu et al, 1998). Escalante and Langille (1998) found that GA 3 increased stolon length, but reduced tuber number, diameter and biomass.…”

Section: Introductionmentioning

confidence: 99%

The endogenous plant hormones and ratios regulate sugar and dry matter accumulation in Jerusalem artichoke in salt-soil

Shao

Yang

et al. 2017

Science of The Total Environment

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Effects of ethylene on the tuberization of potato (Solanum tuberosum) cuttings

Cited by 27 publications

References 23 publications

The Role of Gibberellin, Abscisic Acid, and Sucrose in the Regulation of Potato Tuber Formation in Vitro1

The Role of Gibberellin, Abscisic Acid, and Sucrose in the Regulation of Potato Tuber Formation in Vitro1

Isolation of a Gene Encoding a Copper Chaperone for the Copper/Zinc Superoxide Dismutase and Characterization of Its Promoter in Potato

The endogenous plant hormones and ratios regulate sugar and dry matter accumulation in Jerusalem artichoke in salt-soil

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