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Changes in the concentrations of phenolic acids in carrot plants inoculated with Alternaria radicina Meier, Drechsler and Eddy

100%

Cwalina-Ambroziak B., Amarowicz R., Glosek M., Janiak M.

Acta Scientiarum Polonorum. Hortorum Cultus

2014

tom 13

nr 3

Similary to other fungal species of the genus Alternaria, Alternaria radicina is a major pathogen that infects both the aboveground and underground parts of carrot plants. Changes in the concentrations of phenolic compounds are observed in infected carrot plants. Carrot seedlings were inoculated with the most pathogenic isolates of Alternaria radicina selected in a laboratory test. A phytopathological analysis was performed to determine the health status of carrot plants. The concentrations of phenolic acids in petioles were determined four weeks after inoculation with A. radicina and at harvest. The results of a greenhouse experiment revealed more severe disease symptoms on carrot plants cv. Koral inoculated with A. radicina isolates, compared with cv. Bolero. The content of the predominant phenolic acid (chlorogenic acid) was found to decrease in the leaf stalks of carrots cv. Koral inoculated with A. radicina. A statistically non-significant increase in chlorogenic acid levels was noted in the leaf stalks of carrots cv. Bolero in the experimental and control groups.

Influence of different rootstocks on basic nutrients, selected minerals, and phenolic compounds of apple cv. ‘Šampion’

51%

Kiczorowski P., Kiczorowska B., Krawiec M., Kaplan M.

Acta Scientiarum Polonorum. Hortorum Cultus

2018

tom 17

nr 4

The research objective was to determine and compare dry matter, crude protein, mineral elements (total), dietary fiber, easily hydrolysable sugars, vitamin C, and minerals (K, Na, Mg, Cu) as well as the content of epicatechin and phenolic acids (homovanillic, chlorogenic, caffeic, coumaric, and ferulic) in the flesh and peel of ‘Šampion’ cv. apples grafted on 4 different rootstocks types: M.26, P2, M.9, and P22 in 2014–2015. The apples from trees grafted on the P22 rootstock had the highest content of dry matter, crude protein, fiber, easily hydrolysable sugars, and vitamin C. The highest mineral compound concentration was exhibited by apples from trees growing on rootstocks P22, P2, and M.9. The highest concentration of phenolic acids was determined in the peel of fruits from trees growing on P22 and M.9. The observations confirm that rootstocks characterized by the lowest growth rate (P22, M.9) ensure the highest accumulation of nutrients in ‘Šampion’ fruits.

Ograniczanie wyników

2 Acta Scientiarum Polonorum. Hortorum Cultus

1 Amarowicz R.

1 Cwalina-Ambroziak B.

1 Glosek M.

1 Janiak M.

1 Kaplan M.

1 Kiczorowska B.

1 Kiczorowski P.

1 Krawiec M.

1 2018

1 2014

Wyniki wyszukiwania

Changes in the concentrations of phenolic acids in carrot plants inoculated with Alternaria radicina Meier, Drechsler and Eddy

Influence of different rootstocks on basic nutrients, selected minerals, and phenolic compounds of apple cv. ‘Šampion’