Can Metal Nanoparticles Be a Threat to Microbial Decomposers of Plant Litter in Streams?

Experimentally simulated global warming and nitrogen enrichment effects on microbial litter decomposers in a marsh.

Atmospheric warming and increased nitrogen deposition can lead to changes of microbial communities with possible consequences for biogeochemical processes. We used an enclosure facility in a freshwater marsh to assess the effects on microbes associated with decomposing plant litter under conditions of simulated climate warming and pulsed nitrogen supply. Standard batches of litter were placed i...

survey microbial decomposition leaf litter of salix sp. populus sp. robinia sp. in artificial stream

مطالعه اکولوژیک از سرچشمه رودخانه قره سو(سراب روانسر) در استان کرمانشاه واقع در غرب ایران در پائیز 1378 انجام شد، حداکثر دمای آب 20 درجه سانتی گراد بود، هنگام مطالعه دما در سرچشمه 18 سانتی گراد بود، مقدار عناصر شیمیایی آب اندازه گیری نشد. در این پژوهش لاشبرگ های درختی از بید، چنار، اقاقیا جمع آوری سپس توسط بخش هرباریوم دانشکده کشاورزی دانشگاه شناسایی شدند. وزن خاکستر خشک afdm در(نمونه برداری ...

Microbial decomposers communities are mainly structured by trophic status in circumneutral and alkaline streams

Litter type affects the activity of aerobic decomposers

P. Straková, R. M. Niemi, C. Freeman, K. Peltoniemi, H. Toberman, I. Heiskanen, H. Fritze, and R. Laiho Peatland Ecology Group, Department of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 University of Helsinki, Finland Finnish Forest Research Institute, Vantaa Research Unit, P.O. Box 18, 01301 Vantaa, Finland Finnish Environment Institute, P.O. Box 140, 00251 Helsinki, Finland Wo...

Plant Response to Engineered Metal Oxide Nanoparticles

All metal oxide nanoparticles influence the growth and development of plants. They generally enhance or reduce seed germination, shoot/root growth, biomass production and physiological and biochemical activities. Some plant species have not shown any physiological change, although significant variations in antioxidant enzyme activity and upregulation of heat shock protein have been observed. Pl...