Improved diagnosis of powdery scab (Spongospora subterranea f.sp.subterranea) symptoms on potato tubers (Solanum tuberosum L.)

2005 ◽  
Vol 48 (1-2) ◽  
pp. 1-14 ◽  
Author(s):  
Eisse G. De Haan ◽  
Gé w. Van Den Bovenkamp
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Powdery Scab ◽  
Spongospora Subterranea ◽  
Potato Tubers

Effects of irrigation regimes on powdery scab disease and yield of potatoes

1986 ◽  
Vol 26 (6) ◽  
pp. 745 ◽  
Author(s):  
PA Taylor ◽  
SP Flett ◽  
RFde Boer ◽  
D Marshall
Keyword(s):  
Large Scale ◽  
Field Experiments ◽  
Field Trials ◽  
Powdery Scab ◽  
Infested Soil ◽  
Spongospora Subterranea ◽  
Potato Tubers ◽  
Potato Plants ◽  
Tuber Set ◽  
Large Scale Field

The period of susceptibility of potato tubers to powdery scab (Spongospora subterranea) was studied by inoculating potato plants with spores, or by watering plants in infested soil, at different stages of plant development in greenhouse conditions. Maximum susceptibility began about 1 week before the stage when 50% of stolons had swollen to at least 5-mm diameter (tuber set), and ended 3-4 weeks later. With holding irrigation water during this period reduced the severity of powdery scab by 65-75% in field experiments in 1981-82 and 1982-83, but had no apparent effect on disease severity in 3 out of 6 large-scale field trials during 1984-85.

Polyacrylamid-Elektrophorese zur Beurteilung von Proteinen der Kartoffel (Solanum tuberosum L.)

1966 ◽  
Vol 21 (9) ◽  
pp. 879-888 ◽  
Author(s):  
Volkmar Loeschcke ◽  
Hermann Stegemann
Keyword(s):  
Ascorbic Acid ◽  
Solanum Tuberosum ◽  
Pore Size ◽  
Plant Material ◽  
Solanum Tuberosum L ◽  
Protein Pattern ◽  
Potato Tubers ◽  
Active Inhibitor ◽  
Electrophoretic Behavior ◽  
Acidic Proteins

Up to 25 proteins have been found in the sap of potato tubers by polyacrylamid electrophoresis. The mode of preparation and concentration of the plant material was investigated as well as the pretreatment of the polyacrylamid gel to avoid undue retardation of the migrating bands.Sulfite was the most active inhibitor of sap-browning compared with ascorbic acid and cysteine. which did not influence the protein pattern except for one line. The juice had to be dialyzed or filtered through Sephadex G 25 to remove an unkown acidic material which interferes with the more acidic proteins and causes spreading and diffusing of bands. Proteins were concentrated by means of Carbowax MW 20000. For best results ionic contaminations inherent in the gels was removed by electrophoresis before applying the proteins or dyes. Very few proteins were affected by decreasing the pore size of the gel. Ammonium sulfate (40% saturation) precipitated mainly those proteins which are similar in electrophoretic behavior to the albumin- and transferrinregion of human plasma.

scholarly journals Lipoxygenase Pathway and Membrane Permeability and Composition during Storage of Potato Tubers (Solanum tuberosum L. cv Bintje and Désirée) in Different Conditions

Plant Biology ◽  
2002 ◽  
Vol 4 (1) ◽  
pp. 77-85 ◽  
Author(s):  
M.-L. Fauconnier ◽  
J. Rojas-Beltrán ◽  
J. Delcarte ◽  
F. Dejaeghere ◽  
M. Marlier ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Membrane Permeability ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Lipoxygenase Pathway

scholarly journals Property Changes in Potato Tubers (Solanum tuberosum L.) During Cold Storage at 0 and 10°C

2000 ◽  
Vol 26 (3) ◽  
pp. 153-160 ◽  
Author(s):  
Yosuke MURATA ◽  
Kevin F. YAPTENCO ◽  
Tomohiro NOGUCHI ◽  
Toshiro SUZUKI ◽  
Hiroaki SATO ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Cold Storage ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Property Changes
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