Putative NAD(P)-Binding Rossmann Fold Protein Is Involved in Chitosan-Induced Peroxidase Activity and Lipoxygenase Expression in .

Oxidative burst, the rapid production of high levels of reactive oxygen species in response to external stimuli, is an early defense reaction against pathogens. The fungal elicitor chitosan causes an oxidative burst in the moss (formerly ), mainly due to the peroxidase enzyme Prx34. To better understand the chitosan responses in , we conducted a screen of part of a mutant collection to isolate plants with less peroxidase activity than wild-type (WT) plants after chitosan treatment.

Viral suppressor of RNA silencing in vascular plants also interferes with the development of the bryophyte Physcomitrella patens.

Plant viruses are important pathogens able to overcome plant defense mechanisms using their viral suppressors of RNA silencing (VSR). Small RNA pathways of bryophytes and vascular plants have significant similarities, but little is known about how viruses interact with mosses. This study elucidated the responses of Physcomitrella patens to two different VSRs.

Infection of the Sunagoke moss panels with fungal pathogens hampers sustainable greening in urban environments.

Drought and heat tolerance of the Sunagoke moss (Racomitrium japonicum) and the low thermal conductivity of the dry moss tissue offer novel greening and insulation possibilities of roofs and walls to mitigate the heat island phenomenon in urban environments. However, damage may appear in the moss panels under humid conditions in Japan. In this study we characterized fungi associated with the damaged areas of the Sunagoke moss panels.