Effects of .gamma. irradiation and storage temperature on lipoxygenase activity and carotenoid disappearance in potato tubers (Solanum tuberosum L.)

1990 ◽  
Vol 38 (7) ◽  
pp. 1586-1590 ◽  
Author(s):  
Brij Bhushan ◽  
Paul Thomas
Keyword(s):  
Solanum Tuberosum ◽  
Gamma Irradiation ◽  
Storage Temperature ◽  
Solanum Tuberosum L ◽  
Lipoxygenase Activity ◽  
Potato Tubers ◽  
And Storage

scholarly journals Fungi colonizated of potato tubers (Solanum tuberosum L.) after harvest and after storage

2013 ◽  
Vol 55 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Bożena Cwalina-Ambrozik
Keyword(s):  
Solanum Tuberosum ◽  
Laboratory Experiment ◽  
Rhizoctonia Solani ◽  
Alternaria Alternata ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Frequent Species ◽  
And Storage

The aim of the laboratory experiment was the isolation of fungi colonized potato tubers directly (immediately) after harvest and after 5-month storage. 67 potato tubers samples collected in 1998 and 1999 from the areas of province Warmia and Mazury were examined. The occurrence of 36 and 46 species were confirmed on analyzed tubers after harvest and storage, respectively. The most frequent species which occurred on tubers were: <i>Alternaria alternata</i> (9,4%), <i>Colletotrichum cocco- des</i> (12,6%), <i>Rhizoctonia solani</i> (7,4%) and fungi from <i>Fusarium genera</i> (8,7%).This fungi, except <i>Rhizoctonia solani</i>, more often colonized potato tubers afier storage. Among saprofitic fungi most frequent were: <i>Epicoccum</i> (3,4%), <i>Mortierella</i> (3,1%), <i>Mucor</i>(6,0%), <i>Penicillium</i> (17,0%), <i>Rhizopus</i> (7,1%) and <i>Trichoderma</i> (12,9%). More colonies of fungi were obtained from potato tubers analyzed after harvest. Remaining fungi were more frequently isolated after storage.

Changes in ascorbate and associated gene expression during development and storage of potato tubers (Solanum tuberosum L.)

2013 ◽  
Vol 78 ◽  
pp. 76-91 ◽  
Author(s):  
Jacob M. Blauer ◽  
G.N. Mohan Kumar ◽  
Lisa O. Knowles ◽  
Amit Dhingra ◽  
N.Richard Knowles
Keyword(s):  
Gene Expression ◽  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
And Storage

Effects of Gamma-Irradiation on the Activity of Tonoplast H+-ATPase from Potato Tubers (Solanum tuberosum L.)

1994 ◽  
Vol 35 (5) ◽  
pp. 829-836 ◽  
Author(s):  
Setsuko Todoriki ◽  
Toru Hayashi ◽  
Yoshiyuki Nakamura ◽  
Kunihiro Kasamo
Keyword(s):  
Solanum Tuberosum ◽  
Gamma Irradiation ◽  
Solanum Tuberosum L ◽  
Potato Tubers

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
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