Role of Endogenous Abscisic Acid in Potato Microtuber Dormancy

Suttle, Jeffrey C.; Hultstrand, Julie F.

doi:10.1104/pp.105.3.891

Cited by 96 publications

(74 citation statements)

References 15 publications

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“…Consistently, subsequent studies showed that ABA levels are highest in deeply dormant tubers and decline during storage (Korableva et al 1980;Biemelt et al 2000;Destefano-Beltran et al 2006b). In addition, treatment of microtubers with the ABA biosynthesis inhibitor fluridone reduced the ABA content significantly which was accompanied by a shortened dormancy period (Suttle and Hultstrand 1994). Fig.…”

Section: Hormonal Controlmentioning

confidence: 88%

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Regulation of potato tuber sprouting

Sonnewald

2013

Planta

214

165

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Section: Hormonal Controlmentioning

confidence: 88%

“…Abscisic acid is required for both initiation and maintenance of tuber dormancy (Suttle and Hultstrand 1994). The significance of ABA as dormancy-related hormone was first recognised by Hemberg (1949).…”

Section: Hormonal Controlmentioning

confidence: 99%

Regulation of potato tuber sprouting

Sonnewald

2013

Planta

214

165

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“…Suttle (1995) monitored ABA in tubers of one cultivar under three storage regimes. Even though in other studies the sustained presence of ABA was considered essential for the induction and maintenance of tuber dormancy (Suttle and Hultstrand, 1994), breaking of dormancy could not be attributed to the decline in ABA below a threshold level (Suttle, 1995). He concluded that other interna1 processes or factors were responsible for the loss of dormancy under natural conditions (Suttle, 1995).…”

Section: Other Evidence On Aba and Tuber Dormancymentioning

confidence: 96%

“…Evidence for a causal relationship between traits such as ABA content and potato dormancy has usually been based on correlative evidence from observations or treatments within a single genotype (Ji and Wang, 1988; Presence of More than One QTL per Chromosome Cvikrová et al, 1994;Suttle and-Hultstrand, 1994). As noted by Lebreton et al (1995), identifying the location of…”

Section: Coincidence With Qtls For Other Traitsmentioning

confidence: 99%

Evidence from Polygene Mapping for a Causal Relationship between Potato Tuber Dormancy and Abscisic Acid Content

et al. 1997

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In previous studies polygene mapping of a backcross population derived from haploid potato (Solanum tuberosum) and a diploid wild species (Solanum berthaultiij showed at least eight quantitative trait loci (QTLs) associated with tuber dormancy. The same population was mapped for abscisic acid (ABA) content in tubers so that any QTLs identified could be compared with those detected previously. At least three distinct loci on three chromosomes (2, 4, and 7) were associated with variation in ABA content. One of the QTLs was detected only as a main (single locus) effect, and two QTLs were found through two-locus interaction analysis (epistasis). Interaction between QTLs at markers TG234 (chromosome 2) and TG755 (chromosome 4) explained 20% of total phenotypic variante for this trait. The interaction closely resembled one previously detected for dormancy, suggesting an association between high ABA content and long tuber dormancy. Although relationships between ABA leve1 and dormancy could be demonstrated through polygene mapping, there was no indication of a relationship between these traits when they were subjected to a conventional correlation test. This illustrates the usefulness of polygene mapping as a tool to identify possible associations between hormone levels and plant development.A well-tested approach for understanding growth and development is the analysis of differences between two phenotypes that contain different alleles of a single major gene. For example, analyses of dwarf and wild-type siblings have revealed hormonal differences associated with the mutant genotype (Reid and Howell, 1995). Although this approach has been productive, a limitation is that the control of many developmental processes is polygenic, i.e. inheritance is quantitative rather than qualitative. Thus, although it is interesting to know what physiological effect was produced by a dwarf mutation, it might be much more informative to learn about the physiological effects pro- duced by the polygenes that control plant height. In the past the study of quantitative inheritance was so difficult that it yielded only very generalized information, and little could be learned that would elucidate the physiology of growth and development. The situation has changed dramatically with the availability of new methods for mapping polygenes (Tanksley et al., 1989;Tanksley, 1993;Young, 1993). The new mapping methods rely on DNA-based genetic markers, such as RFLP markers. Through such mapping, a number of QTLs may be found that are associated with the control of a trait such as plant height. A QTL denotes a region of chromosome linked to the marker gene that has a significant effect on the quantitative trait (Tanksley, 1993).With the availability of this tool for mapping quantitative traits, polygenes can be used to study the physiology of growth and development in a manner analogous to, but more powerful than, the way single genes have been used in the past. Once the QTLs have been detected that are associated with the control of a given stage of...

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“…ABA is considered to be the principal dormancy- inducing agent. For various seeds and buds, it has been shown that ABA plays a role in dormancy development (Hole et al, 1989;Suttle and Hultstrand, 1994). Furthermore, young bulblets were very sensitive to the hormone (Djilianov et al, 1994).…”

Section: Discussionmentioning

confidence: 99%

The establishment of a slow-growth conservation system in vitro for two wild lily species

Yun-peng¹,

Li²,

Zhang³

et al. 2012

Afr. J. Biotechnol.

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There are abundant resources of wild lily in China. To achieve a sustainable use for these resources, a slow-growing preservation system should be well established. Therefore, to get an optimal storage condition, tube seedlings of Lilium davidii and Lilium longiflorum were used as explants cultured on nine different media at 24 and -2°C separately, which included: 1/4 or full Murashige and Skoog medium (MS) with 3, 6 or 9% sucrose, 1/4 or 1/2 MS with 1.0 or 3.0 mg/L abscisic acid (ABA). During the storage, the spout growth, and multiplication rate were measured every month. Results show that the growth restriction degrees for both species were related to the four factors (MS content, the concentration of sucrose and ABA, temperature). The inhibitory effect was more obvious at -2°C. At 24°C, the medium should be replaced every three to four months; otherwise the contamination rate would rise with the extension of storage time. At -2°C, the 1/4 MS with 9% sucrose or 3.0 mg/L ABA (M3A) were more effective, especially the latter one. The M3A played the greatest inhibitory effect on height growth of the two lily species, on which both species had been conserved on the original medium for more than 15 months. The tube seedlings conserved for 15 months could turn to normal plantlets after re-growth for one month which showed no obvious difference in morphology. 87.5% plantlets planted in peat could survive. In conclusion, the promising conservation condition was M3A at -2°C which was suitable for mid-long term preservation of lily germplasm resources.

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Role of Endogenous Abscisic Acid in Potato Microtuber Dormancy

Cited by 96 publications

References 15 publications

Regulation of potato tuber sprouting

Regulation of potato tuber sprouting

Evidence from Polygene Mapping for a Causal Relationship between Potato Tuber Dormancy and Abscisic Acid Content

The establishment of a slow-growth conservation system in vitro for two wild lily species

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