To better understand how plants react against the infection, researchers from the University of Ljubljana (Slovenia) studied the changes in phenol composition of local cultivar Domača češplja (Prunus domestica L.).
The phenol composition was determined for visually undeformed necrotic tissues during the last three ripening stages. Results showed the composition was significantly changed as regards anthocyanins, flavonoids and hydroxycinnamics acids in most necrotic tissues.
The phenol composition was determined for visually undeformed necrotic tissues during the last three ripening stages. Results showed the composition was significantly changed as regards anthocyanins, flavonoids and hydroxycinnamics acids in most necrotic tissues.
Phenol compounds differed greatly also between developing stages, providing an idea of the phenol profile of fallen unripe fruit. The study showed how the PPV infection induces flavonoid biosynthesis in plums.
"In addition to the high flavonoid level, the content of p-coumaroylquinic acid was also higher in infected tissues. As similar changes were observed in the tissue of other fruits stressed by biotic and abitic agents, p-coumaroylquinic acid can be considered a good stress indicator and therefore be used in various studies such as for example those for fruit physiology or as a stress indicator even before the onset of visible symptoms. It could also be useful to detect latent or hidden infections."
Source: Valentina Usenik, Franci Stampar, Damijana Kastelec, Mojca Virscek Marn, 'How does sharka affect the phenolics of plum fruit (Prunus domestica L.)?', 2017, Hort. Sci. (Prague), Vol. 44 (2): 64–72, doi: 10.17221/196/2015-HORTSCI
"In addition to the high flavonoid level, the content of p-coumaroylquinic acid was also higher in infected tissues. As similar changes were observed in the tissue of other fruits stressed by biotic and abitic agents, p-coumaroylquinic acid can be considered a good stress indicator and therefore be used in various studies such as for example those for fruit physiology or as a stress indicator even before the onset of visible symptoms. It could also be useful to detect latent or hidden infections."
Source: Valentina Usenik, Franci Stampar, Damijana Kastelec, Mojca Virscek Marn, 'How does sharka affect the phenolics of plum fruit (Prunus domestica L.)?', 2017, Hort. Sci. (Prague), Vol. 44 (2): 64–72, doi: 10.17221/196/2015-HORTSCI