In vitro and in vivo effect of poplar bud (Populi gemma) Extracts on late blight (Phytophthora infestans)

Abstract

Abstract:The effect of populin extract from black poplar (Populus nigra) on late blight was assessed under laboratory and field conditions. The growth rate of hyphae was found to be significantly lower after 1v/v% populin application, and no hyphae growth was detected under 3 and 6v/v% populin application. Populin also reduced the light blight severity on potato leaves under field conditions. From our results, we have concluded that populin extract can be considered as a new and environmentally-friendly alternative for the control of late blight under field conditions.

In Vitro and In Vivo Effect of Poplar Bud Extracts on Phytophthora infestans: A New Effective Biological Method in Potato Late Blight Control

“…Further investigations are needed to answer these questions. According to our results, including those of the apple scab [15][16][17], we conclude that controlling many severe oomycetes diseases with populin may enable the partial elimination or at least reduction of synthetic fungicide usage, thereby enabling efficient organic and/or integrated farming in regions of traditional agriculture.…”

“…According to the authors, the positive effects could be attributed to the inhibitory effects of bioactive compounds on mycelial growth of P. infestans. Unfortunately, little is known about the biological mechanisms leading to the inhibitory effect of populin [15,16]. Since our in vitro tests have revealed a reduction of culture growth in most P. infestans isolates, direct inhibition of hyphal growth might be a possible mode of action.…”

Harnessing Plant’s Arsenal: Essential Oils as Promising Tools for Sustainable Management of Potato Late Blight Disease Caused by Phytophthora infestans—A Comprehensive Review

“…At this point, many research papers have testified the efficacy of specialized microorganism metabolites against P. infestans [65][66][67][68][69][70]. Similarly, several kinds of plant secondary metabolites (PSM) have been reported as well [71,72] such as flavonoids, tannins, coumarins, sterols and alkaloids, but also different kinds of glycosides [73][74][75][76][77][78][79]. On the other hand, researchers also focus on volatile organic compounds specifically found in essential oils (EOs) in order to harness plant's arsenal while overcoming the constraints.…”