Oxygen and carbon dioxide treatment to break potato tuber dormancy for reliable detection of potato virus Y (PVY) by enzyme-linked immunosorbent assay (ELISA)

Reust, W.; Gugerli, P.

doi:10.1007/bf02357433

Cited by 13 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In D. opposita bulbils, however, a concentration of less than 10% O 2 in N 2 was eective in breaking dormancy (Okagami, 1979). Similar ®ndings have been made with potato tubers where reduced oxygen concentration (Burton, 1989) and an atmosphere enriched in carbon dioxide (Reust and Gugerli, 1984) were eective in breaking dormancy.…”

Section: Physical Interventionsupporting

confidence: 60%

Dormancy in Yams

et al. 2001

View full text Add to dashboard Cite

The tubers of yam, principally those of Dioscorea rotundata (white Guinea yam) and D. alata (water or greater yam), are important staple foods and sources of carbohydrate in West Africa. Yams are grown in diverse environments ± from the high-rainfall forest zone on the coast to the seasonally arid savannas of West Africa, that is in situations in which the duration and the timing of the onset of the growing season vary appreciably. Dormancy in both underground and aerial tubers of the Dioscoreaceae is an important adaptive mechanism that helps to maintain organoleptic quality during storage and also ensures that tubers germinate at the start of the growing season. Plant breeders are especially keen to manipulate the duration of the dormant period in order to synchronize growth periods and, therefore, to produce more than one generation per year. The control of tuber dormancy, however, is poorly understood. This review examines critically those factors that aect tuber initiation, dormancy and sprouting, and makes recommendations for future priorities in research. 150P. Q. CRAUFURD et al. Figure 2. Growth cycles of four cultivars of D. rotundata grown from tuber pieces in the ®eld in the forest zone of CoÃ te d'Ivoire. The experiment was planted between 15±23 April . From Trouslot (1982.

show abstract

Section: Physical Interventionsupporting

confidence: 60%

Dormancy in Yams

et al. 2001

View full text Add to dashboard Cite

show abstract

“…During dormancy the tissues maintain some physiological and metabolic functions. The tubers can only sprout and grow when the dormancy ends naturally, or is ended artificially by a physical or chemical treatment ( Reust & Gugerli, 1984 ).…”

Section: Discussionmentioning

confidence: 99%

Impact of dormancy periods on some physiological and biochemical indices of potato tubers

Liu,

Li,

Zhou

et al. 2023

PeerJ

View full text Add to dashboard Cite

Background Storage of potato tubers is an essential stage of the supply chain, from farm to consumer, to efficiently match supply and demand. However, the quality and yield of potatoes are influenced by physiological changes during storage. Methods This study tested the physiological and biochemical indices in three potato varieties (YunSu 108, YunSu 304 and YunSu 306) during their dormancy periods. Results Three potato varieties with different dormancy periods were used to follow changes in starch, protein and several enzymes during storage. The starch and sugar content of the long-dormant variety (YunSu 108, LDV) were stable, whereas those of the short-dormant variety (YunSu 306, SDV) were variable. Starch synthase activity in the three varieties was initially high, then decreased; the starch content of LDV was relatively stable, that of the medium-dormant variety (YunSu 304, MDV) increased with storage time and peaked at sprouting, and that of SDV was low but variable. The sucrose synthase activity of LDV was significantly higher (p < 0.05) than MDV and SDV in the middle storage period. Two spikes were observed in the invertase activity of SDV, whereas those of MDV and LDV were stable. The reducing sugar content of LDV increased significantly before sprouting, that of MDV slowly decreased and that of SDV dropped sharply. During the whole storage period, pectinase activity in LDV did not change significantly, whereas pectinase in MDV and SDV decreased. The cellulase and protein contents initially increased and then decreased in LDV, and steadily decreased in MDV and SDV. Conclusion The metabolic indices related to starch and sugar in the LDV were relatively stable during storage, whereas those of the SDV varied greatly. SDV showed increased sucrose, reducing sugars and cellulose; LDV PCA plots clustered in the positive quadrant of PC1 and the negative quadrant of PC2, with increased protein, sucrose synthase and starch; MDV had increased soluble starch synthase.

show abstract

“…REUST and GUGERLI (1984) found that 20% CO 2 treatment was as efficient as rindite treatment and COLEMAN and MCINERNEY (1997) observed that in the presence of ethylene, the effectiveness of 20% CO 2 was comparable to Bromoethane in enhancing dormancy release. But we observed that GA treatment was more effective than 20% CO 2 in hastening dormancy release.…”

Section: Discussionmentioning

confidence: 99%

Effect of CO2 treatment on dormancy duration, sprout growth and sugar content in two potato cultivars: Short communication

Ezekiel¹,

Singh²

2005

Hort. Sci. (Prague)

View full text Add to dashboard Cite

Dormant tubers of two potato cultivars Kufri Jyoti and Kufri Chandramukhi were treated for 7 days with 5, 10, 15 and 20% CO2 concentrations at 18 ± 1ºC and 90–95% RH, and compared with GA treated tubers and with untreated tubers serving as control. During subsequent storage at the same temperature and RH, dormancy duration was reduced by 20 days with CO2 treatment and by 35 days with GA treatment. In Kufri Jyoti, GA treatment caused 2.6 fold increase in the concentration of reducing sugars and 0.8 fold increase in total sugars in the apical half of the tubers leading to early release of dormancy in apical buds but this increase in sugar content was not observed in the basal half where the buds remained dormant.

show abstract

Oxygen and carbon dioxide treatment to break potato tuber dormancy for reliable detection of potato virus Y (PVY) by enzyme-linked immunosorbent assay (ELISA)

Cited by 13 publications

References 6 publications

Dormancy in Yams

Dormancy in Yams

Impact of dormancy periods on some physiological and biochemical indices of potato tubers

Effect of CO<sub>2 </sub>treatment on dormancy duration, sprout growth and sugar content in two potato cultivars: Short communication

Contact Info

Product

Resources

About