TY - CHAP A1 - Schumacher, Julia ED - Scott, B. ED - Mesarich, C. T1 - Role of light in the life cycle of Botrytis cinerea N2 - The fungus Botrytis cinerea (Botryotinia fuckeliana) infects more than 500 plant species and causes a wide range of symptoms: soft rots, accompanied by collapse and water-soaking of tissues followed by the appearance of gray masses of conidia on leaves and soft fruits (gray mold), and spots that may turn brown to full-scale soft rotting on flower petals (Botrytis blight). In general, B. cinerea is responsible for severe economic losses that are either due to the damage of growing plants in the field or the rot of harvested fruits, flowers, and vegetables during storage under cold and humid conditions. B. cinerea has adapted to the plant host and its environment by evolving strategies to use plant tissues for proliferation in terms of a necrotrophic lifestyle, and to survive biotic stresses (host responses) as well as abiotic factors of the host’s environment such as sunlight and concomitant stresses. B. cinerea maintains a complex regulatory network of light-sensitive proteins and signal transduction pathways to use light for coordinating stress responses, virulence, and reproduction. Different light-controlled reproduction cycles enable B. cinerea to live in moderate climate zones by infecting and propagating in summer and resting in winter when green host tissues are unavailable. KW - Gray mold fungus KW - Plant pathogen KW - Light KW - Photoreceptors KW - Development PY - 2023 DO - https://doi.org/10.1007/978-3-031-16503-0_14 VL - 5 SP - 329 EP - 346 PB - Springer, Cham AN - OPUS4-56724 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Lessovaia, S.N. A1 - Gerrits, Ruben A1 - Gorbushina, Anna A1 - Polekhovsky, Y.S. A1 - Dultz, S. A1 - Kopitsa, G.G. ED - Frank-Kamenetskaya, O.V. ED - Vlasov, D. ED - Panova, E.G. ED - Lessovaia, S.N. T1 - Modeling Biogenic Weathering of Rocks from Soils of Cold Environments N2 - Morphologically simple and microbially dominated ecosystems termed “biofilms” have existed on Earth for a long period of biosphere evolution. A model biofilm combining one heterotroph and one phototroph component was used in a laboratory experiment to simulate biogenic weathering with two different specimens of basic rock samples from the soil profiles. The rocks fragments from the regions of cold environments of Eurasia,where abiotic physical processes, including rock disintegration initiated by freezing–thawing cycles, represent the most probable Scenario of rock weathering, were subjected to biological colonization. The rock Fragments were represented by dolerite and metagabbro amphibolites. Polished sections of the rock samples were inoculated with the model microbiological consortium of the oligotrophic fungus and the phototrophic cyanobacteria (biofilm). After 3 month runtime of the experiment the progress of rock weathering was derived from the growth of the biofilm on the rock surfaces. The model biofilm visualization on the rock surface of polished sections illustrated their stronger development namely on dolerite in comparison with metagabbro amphibolite. The findings confirmed the higher sensitivity of dolerite to biogenic weathering due to (i) mineral association, in which quartz was absent and (ii) porosity providing higher specific surface area for biotic—abiotic interaction influenced by the occurrence of micro-porosity in the rock. KW - Biogenic weathering KW - Rock leaching KW - Fractal structure KW - Biofilm formation KW - Internal pores PY - 2020 DO - https://doi.org/10.1007/978-3-030-21614-6_27 SP - 501 EP - 515 PB - Springer AN - OPUS4-51442 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -