caa a22 4500 606161759 CHVBK 20210128100636.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10526-015-9662-7 doi (NATIONALLICENCE)springer-10.1007/s10526-015-9662-7 Biocontrol ability of Trichoderma harzianum strain T22 against Fusarium wilt disease on water-stressed lettuce plants [Elektronische Daten] [Gloria Innocenti, Roberta Roberti, Federica Piattoni] The control ability of Trichoderma harzianum strain T22 against Fusarium wilt of lettuce caused by Fusarium oxysporum f. sp. lactucae strain 365.07 was studied through mesocosm assays under extreme soil water content available for plants (−0.5 and −0.03MPa). T22 was applied to nursery substrate at seeding, and to mesocosm soil at transplant of seedlings artificially infected by the pathogen. T22 treatment decreased disease severity in comparison to infected controls by 57 and 78% in dry and wet conditions, respectively. Plant biomass was increased by T22 under both moisture levels. T22 colony growth, spore germination and antagonism to the pathogen were investigated under different water potentials (−0.03, −0.1, −0.5, −1.0, −2.0, −7.0 and −14.0MPa) on minimal agar medium. All these parameters were influenced by water potential. However, they were similar at the same MPa values tested in the mesocosm assays. Our results provide evidence that T. harzianum strain T22 could be effective to control wilt disease caused by F. oxysporum f. sp. lactucae strain 365.07 under extreme soil moisture regimes already present in Italy, and susceptible to become more frequent in the near future. International Organization for Biological Control (IOBC), 2015 Fusarium oxysporum f. sp. lactucae strain 365.07 nationallicence Trichoderma harzianum strain T22 nationallicence Lactuca sativa L nationallicence Water stress nationallicence Innocenti Gloria Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut Roberti Roberta Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut Piattoni Federica Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut BioControl Springer Netherlands 60/4(2015-08-01), 573-581 1386-6141 60:4<573 2015 60 10526 https://doi.org/10.1007/s10526-015-9662-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10526-015-9662-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Innocenti Gloria Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut NATIONALLICENCE 700 1- Roberti Roberta Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut NATIONALLICENCE 700 1- Piattoni Federica Department of Agricultural Sciences, Alma Mater Studiorum - University of Bologna, Viale G. Fanin 46, 40127, Bologna, Italy aut NATIONALLICENCE 773 0- BioControl Springer Netherlands 60/4(2015-08-01), 573-581 1386-6141 60:4<573 2015 60 10526