Foliar and root applications of the rare sugar tagatose control powdery mildew in soilless grown cucumbers

D-Tagatose-Based Product Triggers Sweet Immunity and Resistance of Grapevine to Downy Mildew, but Not to Gray Mold Disease

“…This is consistent with the efficiency of IFP48 in inducing resistance against P. viticola . Similar results have been reported in a recent study [ 26 ], showing higher level (3 to 4-fold) of D-tagatose in cucumber leaves following root treatment with IFP48 compared to pure TAG. This indicates that co-formulant in IFP48 can facilitate D-tagatose influx into leaf tissues or protected it from the consumption by phyllospheric microbes [ 35 ], thereby improving grapevine resistance against P. viticola .…”

“…In recent years, some rare monosaccharides and their derivatives have shown potential functional and ecological properties in controlling plant pathogens [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. Their availability has been achieved through the implementation of new enzymatic and microbial processes, making their use effective in food and agricultural sectors [ 25 , 30 ].…”

“…It is also likely that a coordinated interaction of sugar and hormonal pathways in plants leads to effective induction of defense responses [ 15 ]. Although the effectiveness of tagatose against some fungal and oomycete pathogens was reported [ 25 , 26 , 31 , 35 ], the molecular mechanisms involved in grapevine protection against downy mildew and gray mold remained to be elucidated.…”

A review of knowledge on the mechanisms of action of the rare sugard‐tagatose against phytopathogenic oomycetes

“…Disease control can be achieved by d-tagatose foliar spray, soil drenching, or seed treatment, and no phytotoxic effects are noticed on treated plants (Corneo et al, 2021a;Ohara et al, 2008). In addition, d-tagatose has both preventive and curative effects against some plant diseases, such as cucumber downy mildew (Mochizuki et al, 2020).…”

“…Among phytopathogens, several oomycetes are inhibited by d ‐tagatose, such as Hyaloperonospora arabidopsidis , Peronospora destructor , Peronospora farinosa , Phytophthora infestans , Plasmopara viticola , Pseudoperonospora cubensis , Pythium aphanidermatum , and Pythium graminicola (Chahed et al, 2020; Corneo et al, 2021b; Mochizuki et al, 2020; Perazzolli et al, 2020). Disease control can be achieved by d ‐tagatose foliar spray, soil drenching, or seed treatment, and no phytotoxic effects are noticed on treated plants (Corneo et al, 2021a; Ohara et al, 2008). In addition, d ‐tagatose has both preventive and curative effects against some plant diseases, such as cucumber downy mildew (Mochizuki et al, 2020).…”