![]() Programmed cell death in plants: lessons from bacteria? Trends Plant Sci. For the greater good: programmed cell death in bacterial communities. Die for the community: an overview of programmed cell death in bacteria. Senescence in bacteria and its underlying mechanisms. The fungal cell wall: structure, biosynthesis, and function. Microbial storage and its implications for soil ecology. Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios. Does the growth rate hypothesis apply to aquatic hyphomycetes? Fungal Ecol. Self-eating to grow and kill: autophagy in filamentous ascomycetes. in Cellular and Molecular Biology of Filamentous Fungi (eds Borkovich, K. Plant Physiology 4th edn (Spektrum Akademischer Verlag, 2008).īowman, E. Autophagy provides nutrients for nonassimilating fungal structures and is necessary for plant colonization but not for infection in the necrotrophic plant pathogen Fusarium graminearum. The role of macroautophagy in development of filamentous fungi. Comparative studies of differential expression of chitinolytic enzymes encoded by chiA, chiB, chiC and nagA genes in Aspergillus nidulans. Hyphae move matter and microbes to mineral microsites: integrating the hyphosphere into conceptual models of soil organic matter stabilization. Senescence in fungi: the view from Neurospora. Asymmetric inheritance of oxidatively damaged proteins during cytokinesis. ![]() Senescence in a bacterium with asymmetric division. Simulating measurable ecosystem carbon and nitrogen dynamics with the mechanistically defined MEMS 2.0 model. Schrödinger’s microbes: tools for distinguishing the living from the dead in microbial ecosystems. Direct evidence for microbial-derived soil organic matter formation and its ecophysiological controls. Microbial physiology and necromass regulate agricultural soil carbon accumulation. ![]() Sticky dead microbes: rapid abiotic retention of microbial necromass in soil. in The Future of Soil Carbon (eds Garcia, C. Microbial necromass as the source of soil organic carbon in global ecosystems. Quantitative assessment of microbial necromass contribution to soil organic matter. The importance of anabolism in microbial control over soil carbon storage. The contentious nature of soil organic matter. Soil carbon science for policy and practice. Not only microbial growth but also death drive the soil microbial carbon pump.īradford, M. Thus, new research focusing on microbial death pathways holds great potential to improve management strategies for soil organic carbon storage. This has far-reaching consequences for mechanisms underpinning biogeochemical processes: (1) the quantity and persistence of microbial necromass is governed by microbial death pathways, not only the initial biomass composition (2) efficient recycling of nutrients within microbial biomass presents a possible pathway of organic carbon sequestration that minimizes nitrogen losses (3) human-induced disturbances affect the causes of microbial death and consequently necromass composition. The exact changes depend on environmental conditions and the relevance of different microbial death pathways, for example, predation, starvation or anthropogenic stresses. From biomass to necromass, distinct chemical transformations lead to increases in cell wall/cytoplasm ratios while nutrient contents and easily degradable compounds are depleted. Importantly, the composition of derived microbial necromass does not equal that of microbial biomass. Here we provide evidence that microbial death pathways (the distinct processes of microbial dying) in soil affect necromass composition and its subsequent fate. However, since the direct characterization of microbial necromass in soil is challenging, its composition and formation remain unresolved. Soil microbes are the main drivers of soil organic carbon sequestration, especially through accumulation of their necromass. Soil organic matter is the dominant carbon pool in terrestrial ecosystems, and its management is of increasing policy relevance.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |