000 02718nab|a22003737a|4500
001 64613
003 MX-TxCIM
005 20211129143432.0
008 201007s2020||||sz |||p|op||||00||0|eng|d
022 _a1420-3049 (Online)
024 8 _ahttps://doi.org/10.3390/molecules25204752
040 _aMX-TxCIM
041 _aeng
100 1 _aFrancesconi, S.
_925399
245 1 0 _aChitosan hydrochloride decreases Fusarium graminearum growth and virulence and boosts growth, development and systemic acquired resistance in two durum wheat genotypes
260 _aBasel (Switzerland) :
_bMDPI,
_c2020.
500 _aPeer review
500 _aOpen Access
520 _aFusarium head blight (FHB) is a devastating disease for cereals. FHB is managed by fungicides at anthesis, but their efficacy is variable. Conventional fungicides accumulate in the soil and are dangerous for animal and human health. This study assayed the antifungal ability of chitosan hydrochloride against Fusarium graminearum. Chitosan reduced F. graminearum growth and downregulated the transcript of the major genes involved in the cell growth, respiration, virulence, and trichothecenes biosynthesis. Chitosan promoted the germination rate, the root and coleoptile development, and the nitrogen balance index in two durum wheat genotypes, Marco Aurelio (FHB-susceptible) and DBC480 (FHB-resistant). Chitosan reduced FHB severity when applied on spikes or on the flag leaves. FHB severity in DBC480 was of 6% at 21 dpi after chitosan treatments compared to F. graminearum inoculated control (20%). The elicitor-like property of chitosan was confirmed by the up-regulation of TaPAL, TaPR1 and TaPR2 (around 3-fold). Chitosan decreased the fungal spread and mycotoxins accumulation. This study demonstrated that the non-toxic chitosan is a powerful molecule with the potential to replace the conventional fungicides. The combination of a moderately resistant genotype (DBC480) with a sustainable compound (chitosan) will open new frontiers for the reduction of conventional compounds in agriculture.
546 _aText in English
650 7 _aChitosan
_2AGROVOC
_918924
650 7 _aFusarium
_2AGROVOC
_92705
650 7 _aHard wheat
_2AGROVOC
_91142
650 7 _aPlant defence reactions
_2AGROVOC
_925400
650 7 _aDisease resistance
_2AGROVOC
_91077
700 1 _aSteiner, B.
_921261
700 1 _aBuerstmayr, H.
_921263
700 1 _aLemmens, M.
_925401
700 1 _aSulyok, M.
_918748
700 1 _aBalestra, G.M.
_925402
773 0 _tMolecules
_gv. 25, no. 20, art. 4752
_dBasel (Switzerland) : MDPI, 2020.
_x1420-3049
856 4 _uhttps://doi.org/10.3390/molecules25204752
_yClick here to access online
942 _cJA
_n0
_2ddc
999 _c64613
_d64605