This study investigated the effects of two fungal pathogens, the smut fungus Sporisorium kusanoi and the discomycete Naemacyclus culmigenus, on the Japanese pampas grass Miscanthus sinensis, under experimental warming. In a cool-temperate grassland in a montane region, a field experiment was conducted with two treatments: 1) warming plots in open-top chambers (OTC); and 2) control plots with ambient temperature. Mean air temperature was 1.1°C higher in OTC than control. The fate, length, number of leaves, and aboveground biomass of uninfected and infected shoots of M. sinensis naturally established within the plots were recorded during the 2014 growing season. Disease symptoms emerged earlier in OTC. Infected shoots were shorter and had fewer leaves in OTC, whereas uninfected shoots were similar between OTC and control. Shoot biomass tended to be higher for uninfected shoots than infected shoots, but similar between OTC and control. Finally, shoot survival tended to be lower in OTC than control, as well as in infected than uninfected shoots. These results indicated that survival and growth of M. sinensis shoots were reduced following pathogen infection and that the detrimental effects of pathogens were more apparent under the warming condition.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 24 • No. 3-4