Growth rate of potato tubers and endogenous contents of indolylacetic acid and abscisic acid

Marschner, H.; Sattelmacher, B.; Bangerth, F.

doi:10.1111/j.1399-3054.1984.tb04242.x

Cited by 42 publications

(22 citation statements)

References 23 publications

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“…The morphology of the tubers formed in the presence of ABA always resembled "normal" in vitro tubers, and no signs of abnormalities, as observed in the presence of ethylene, were seen (Catchpole and Hillman, 1969). Our results support the view that exogenously applied ABA promotes tuber formation in potatoes (Okazawa and Chapman, 1962;ElAntably et al, 1967;Abdullah and Ahmad, 1980;Menzel, 1980;Wareing and Jennings, 1980) and that it is an inhibitor of stolon elongation (Palmer and Smith, 1969b;Marschner et al, 1984). However, the effects of applied ABA are dependent on variety, concentration, and interaction with cytokinins (Palmer and Smith, 1969b;Hussey and Stacey, 1984).…”

Section: Abasupporting

confidence: 87%

“…ABA is normally regarded as a regulator that reduces GA-promoted processes in plant development. It was assumed that ABA is a promoting hormone in potato tuberization (Okazawa and Chapman, 1962;Marschner et al, 1984). However, the functions of ABA with respect to stolon elongation, tuber initiation, and tuber growth are not clear.…”

mentioning

confidence: 99%

“…However, other reports described inhibition of tuberization by ABA, with the effect depending on concentration and variety (Palmer and Smith 1969b;Hussey and Stacey, 1984). The analysis of endogenous ABA showed an increase of ABA level under tuber-inducing conditions (Krauss and Marschner, 1982) and a reduction of ABA content when N was supplied during tuber formation (Marschner et al, 1984). Further studies are needed to clarify the conflicting data concerning the effect of ABA on tuberization.…”

mentioning

confidence: 99%

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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: Abasupporting

confidence: 87%

mentioning

confidence: 99%

mentioning

confidence: 99%

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

et al. 1998

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“…They control the processes of t berization, dormancy and spro ting [3,17,18] . Potato t bers provide s itable tiss e to st dy the effects of phytohormones on development and concomitant physiological processes.…”

Section: Introd Ctionmentioning

confidence: 99%

The effects of abscisic acid on growth and respiratory characteristics of potato tuber tissue discs

et al. 1988

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Inc bation of potato t ber tiss e discs on B5 medi m s pplemented with 1-naphtylacetic acid (NAA) led to call s formation, irrespective of the presence of kinetin ; witho t NAA no call s formation occ rred . Inc bation in the presence of abscisic acid (ABA) red ced the increases in fresh weight and dry weight both in call s-forming and in non-call s-forming tiss e. Mitochondrial respiration was lowered by ABA as well . The ind ction of the alternative, CN-resistant pathway was inhibited by the presence of ABA, especially in mitochondria from non-call s-forming tiss e .The in vivo respiration of the call s-forming tiss e was higher than that of the non-call sforming tiss e . Total respiration, cytochrome pathway activity and the capacity of the alternative pathway were all lowered in call s-forming tiss e by treatment with ABA . The in vivo activity of the alternative pathway was low in all tiss e types, especially after ABA-treatment . The slight stim lation by hydroxamates of the oxygen ptake of call s-forming tiss e inc bated on medi m with NAA and ABA indicates the involvement of a hydroxamateactivated peroxidase in the oxygen ptake of this tiss e ; this peroxidase seemed not to participate in the oxygen ptake of the other tiss es types .In non-call s-forming tiss e the oxygen ptake of ABA-treated tiss e was very low and almost completely resistant to the combined addition of inhibitors of both the cytochrome and the alternative pathway, indicating that the in vivo activity of the mitochondria in the oxygen ptake of the tiss e was very low . The possible ca ses for this ABA-effect are disc ssed . In non-call s-forming tiss e the treatment with ABA creates a sit ation which is comparable with that observed in intact potato t bers . This sit ation is characterized by a tiss e respiration lower than that of the isolated mitochondria and an alternative pathway capacity that is low or absent.

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“…A diferencia de GA, las citoquininas estimulan la formación de los tubérculos en muchas especies tuberosas (Aksenova et al, 2011). En numerosos estudios se considera a la BA como una hormona promotora de la tuberización en papa, debido a que reduce algunos de los procesos promovidos por GA durante el desarrollo de las plantas (Okazawa & Chapman, 1962;Marschner et al, 1984); sin embargo, el éxito de la combinación de BA y GA con respecto a la elongación del vástago, la iniciación de la tuberización y el crecimiento de los tubérculos todavía no está claro.…”

Section: Introductionunclassified

Efecto de las hormonas vegetales y el fotoperiodo en la producción de microtubérculos de papa (Solanum tuberosum L.)

Moreno¹,

Oropeza²

2017

Rev. colomb. biotecnol.

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RESUMENExisten numerosos factores que afectan la micropropagación y la microtuberización en papa; entre ellos, las hormonas vegetales y el fotoperiodo. Para estudiar el efecto de estos dos factores en las variedades 'Arbolona negra' (AN) y 'Granola' (G), se cultivaron microesquejes de cada variedad en medio MS líquido con o sin giberelinas (GA) y con 25 g/L de sacarosa e incubados bajo condiciones de luz blanca continua. Para inducir la microtuberización, las vitroplántulas obtenidas fueron sub-cultivadas en medio MS suplementado con 50 g/L sacarosa, tres concentraciones de BA (0, 1 y 5 mg/L) e incubadas bajo diferentes regímenes lumínicos. El pre-tratamiento con GA favoreció el alargamiento del vástago en AN pero no en G. Ambas variedades produjeron el mayor número de microtubérculos en medio MS suplementado con 5 mg/L de BA, bajo condiciones fotoperiódicas, sin la adición previa de GA. El cultivo in vitro de microesquejes de papa en medios de cultivo suplementados con BA y sacarosa, y la incubación bajo condiciones de días cortos permite obtener microtubérculos de papa en condiciones in vitro, en un tiempo más corto que el que podría esperarse en condiciones tradicionales de cultivo.Palabras clave: microtuberización, benciladenina, giberelinas, fotoperiodo. ABSTRACTMicropropagation and microtuberization in potato plants are both affected by plant hormones and photoperiod. To study the effect of these factors on potato cultivars 'Arbolona negra' (AN) and 'Granola' (G), microcuttings of each cultivar were cultured on MS liquid medium supplemented with sucrose 25 g/L, with or without gibberellins (GA). These microcuttings were incubated under continuous light. In order to induce microtuberization, the obtained vitro- plantlets were subcultured on MS medium supplemented with sucrose 50 g/L, three concentrations of BA (0, 1 and 5 mg/L) and incubated under different light patterns. GA pre-treatment induced shoots elongation on AN but not on G cultivar. The highest microtubers production for both cultivars was achieved on MS medium supplemented with BA 5 mg/L under short day light condition without GA pretreatment. The in vitro culture of microcuttings on culture media supplemented with BA and sucrose, incubated under short day conditions, allowed microtubers production in a shorter time lapse.

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Growth rate of potato tubers and endogenous contents of indolylacetic acid and abscisic acid

Cited by 42 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

The effects of abscisic acid on growth and respiratory characteristics of potato tuber tissue discs

Efecto de las hormonas vegetales y el fotoperiodo en la producción de microtubérculos de papa (Solanum tuberosum L.)

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