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

• Autorzy: Cwalina-Ambroziak B. , Amarowicz R. , Glosek M. , Janiak M.

Warianty tytułu

PL

Zmiany zawartości kwasów fenolowych w roślinach marchwi inokulowanych Alternaria radicina Meier, Drechsler and Eddy

• Języki publikacji: EN

Abstrakty

EN

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.

PL

Alternaria radicina, obok innych gatunków grzybów, jest groźnym patogenem części nadziemnej i podziemnej marchwi. Infekcje powodują zmiany, m.in. zawartości związków fenolowych. W teście laboratoryjnym wybrano najbardziej patogeniczne izolaty Alternaria radicina, którymi inokulowano siewki marchwi. Przeprowadzono ocena fitopatologiczną zdrowotności marchwi. Analizowano zawartość fenolokwasów w ogonkach liściowych w terminie 4 tygodni po inokulacji grzybem i podczas zbioru. Wyniki doświadczenia w hali wegetacyjnej wskazują na silniejsze objawy choroby wskutek inokulacji izolatami Alternaria radicina na odmianie Koral niż na odmianie Bolero. W ogonkach marchwi odmiany Koral inokulowanych A. radicina stwierdzono zmniejszenie zawartości głównego fenolokwasu (kwasu chlorogenowego). Wzrost zawartości kwasu chlorogenowego w ogonkach odmiany Bolero w grupie eksperymentalnej i kontrolnej nie był istotny.

Słowa kluczowe

EN

phenolic acid concentration; carrot plant; Daucus carota; inoculation; Alternaria radicina; pathogen; plant health

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Hortorum Cultus
• Rocznik: 2014
• Tom: 13
• Numer: 3
• Opis fizyczny: p.97-108,fig.,ref.

Twórcy

autor

Cwalina-Ambroziak B.

• Department Phytopathology and Entomology, Olsztyn University of Warmia and Mazury in Olsztyn, Prawochenskiego 17, 10-720 Olsztyn, Poland

autor

Amarowicz R.

• Polish Academy of Sciences in Olsztyn, Olsztyn, Poland

autor

Glosek M.

• Department Phytopathology and Entomology, Olsztyn University of Warmia and Mazury in Olsztyn, Prawochenskiego 17, 10-720 Olsztyn, Poland

autor

Janiak M.

• Polish Academy of Sciences in Olsztyn, Olsztyn, Poland

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