Open AccessBIOCHEMICAL COMPOUNDS FROM APRICOT LEAVES INVOLVED IN RESISTANCE TO MONILINIA SPP.
Author(s) -
C. Petrişor,
M. Dumitru,
Roxana Zaharia,
Viorel Oltenacu
Publication year - 2021
Publication title -
romanian journal for plant protection
Language(s) - English
Resource type - Journals
ISSN - 2248-129X
DOI - 10.54574/rjpp.14.12
Subject(s) - prunus armeniaca , polyphenol oxidase , carotenoid , catalase , peroxidase , cultivar , horticulture , biology , polyphenol , botany , plant disease resistance , antioxidant , enzyme , biochemistry , gene
"Brown rot caused by Monilinia laxa is an important fungal disease of apricot (Prunus armeniaca)causing economical losses in different growing areas in Europe. M. laxa induces great damage in apricot, attackingflowers, leaves, stem, branches and fruits. The damage severity is strictly related to the climate conditions andseveral fungicide treatments are often necessary in order to limit the disease. Therefore, the aim of this study wasto investigate the changes in the content of pigments (chlorophylls, carotenoids), total polyphenols, peroxidase,catalase, polyphenol oxidase in the leaves of the different apricot varieties. All these parameters were chosentaking in account their involvement in plant disease resistance. Concerning to chlorophylls and carotenoids level,less amounts were recorded in the leaves collected from the all symptomatic apricot varieties studied. Activitiesof peroxidase, catalase and polyphenol oxidase and total polyphenols were increased in the apricot samplesaffected by M. laxa compared with the healthy ones. Among the analyzed cultivars, Dacia, Litoral and Favoritshowed a great tolerance to M. laxa. The genotypes like Carmela and Viorica showed different susceptibility.IN RESISTANCE TO MONILINIA SPP."