caa a22 4500 47710987X CHVBK 20180405111605.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF02257524 doi (NATIONALLICENCE)springer-10.1007/BF02257524 Arbuscular mycorrhizal fungal-induced alteration to root architecture in strawberry and induced resistance to the root pathogen Phytophthora fragariae [Elektronische Daten] [J. Norman, D. Atkinson, J. Hooker] Three strawberry cultivars Elsanta, Cambridge Favourite and Rhapsody were inoculated with eitherGlomus fasciculatum orGlomus etunicatum and their growth compared with non-inoculated plants. The roots of all inoculated plants were 55 to 70% colonised after 98 days. Increases in both root and shoot dry weights were measured. Root architecture was also determined and increases in branching were evident in AMF colonised root systems. The remaining plants were then inoculated with the root pathogenPhytophthora fragariae and allowed to grow for a further 58 days before harvest. In two of the cultivars, Cambridge Favourite and Elsanta, AMF reduced root necrosis by approximately 60 and 30% respectively. Only in the least susceptible cultivar, Rhapsody, was no reduction measured in AMF colonised plants. There were differences in the control conferred by the two arbuscular mycorrhizal fungi and this suggests there may be practical benefits of inoculation. Relationships between the presence of roots of different orders, on inoculation with the pathogen, and subsequent necrosis provided a mechanism for identifying root-architecture driven alteration to susceptibility. Root system necrosis was positively correlated with the proportion of the root system made up of higher order roots (3° to 4°) in non-colonised plants and negatively correlated in AMF colonised plants. These data suggest that root-architecture changes are not important per se but factors expressed concurrently may be. Kluwer Academic Publishers, 1996 AMF nationallicence arbuscular mycorrhizae nationallicence biocontrol nationallicence Phytophthora fragariae nationallicence root-architecture nationallicence strawberry nationallicence Norman J. Land Resources Department, SAC, Soil Biology Unit, Doig Scott Building, Craibstone Estate, AB2 9TQ, Aberdeen, UK aut Atkinson D. SAC, West Mains Road, EH9 3JIJ, Edinburgh, UK aut Hooker J. Land Resources Department, SAC, Soil Biology Unit, Doig Scott Building, Craibstone Estate, AB2 9TQ, Aberdeen, UK aut Plant and Soil Kluwer Academic Publishers 185/2(1996-09-01), 191-198 0032-079X 185:2<191 1996 185 11104 https://doi.org/10.1007/BF02257524 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02257524 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Norman J. Land Resources Department, SAC, Soil Biology Unit, Doig Scott Building, Craibstone Estate, AB2 9TQ, Aberdeen, UK aut NATIONALLICENCE 700 1- Atkinson D. SAC, West Mains Road, EH9 3JIJ, Edinburgh, UK aut NATIONALLICENCE 700 1- Hooker J. Land Resources Department, SAC, Soil Biology Unit, Doig Scott Building, Craibstone Estate, AB2 9TQ, Aberdeen, UK aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers 185/2(1996-09-01), 191-198 0032-079X 185:2<191 1996 185 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer