When we think about ice, snow or rain falling from the sky, we imagine some perfect beautiful crystals made of water molecules. Scientist had discovered that those crystals originate because some dust particle, helped with the wind, goes to clouds and then water surround it. Because high in the atmosphere the temperatures are so low, those water molecules freeze giving a structure called ice crystals.
Now we know that precipitation from the sky are much more that simple dust and water. They contain living organisms like bacteria. This mixture of different inorganic compounds and living beings is called bio precipitation. Scientist who was first one to propose this term is David Sands from Montana State University. 1
Explanation for this phenomenon is quite simple. Bacteria develop their normal life cycle in the surface of some plant for example. Those colonies can be raised up very high in our …show more content…
syringae life cycle. This bacterium is Gram negative aerobic Proteobacteria. All known strains are plant pathogens. 5 It belongs to group of co called ice nucleation-active (INA) bacteria that are capable to create ice-nucleation particles (INP) in clouds. 6 It is identified a gene called ina gene present in INA species reported by T. Hill (2014). Product of this gene is protein called Ice protein that covers the bacterial surface. Only the ice+ cell are capable to create ice particles and it is thought that this gene could be transferred from one bacterium to another by conjugation. 5 The ice protein helps the cell to surround by water molecules and freeze. As a consequence, the temperature of ice crystals forming will be increased. This means that plants as a habitat of INA, will freeze at higher temperature and this can provoke serious damage in the plants. This is especially important in agriculture ecosystems where those INA bacteria can provoke huge damage in cultivates
Now we know that precipitation from the sky are much more that simple dust and water. They contain living organisms like bacteria. This mixture of different inorganic compounds and living beings is called bio precipitation. Scientist who was first one to propose this term is David Sands from Montana State University. 1
Explanation for this phenomenon is quite simple. Bacteria develop their normal life cycle in the surface of some plant for example. Those colonies can be raised up very high in our …show more content…
syringae life cycle. This bacterium is Gram negative aerobic Proteobacteria. All known strains are plant pathogens. 5 It belongs to group of co called ice nucleation-active (INA) bacteria that are capable to create ice-nucleation particles (INP) in clouds. 6 It is identified a gene called ina gene present in INA species reported by T. Hill (2014). Product of this gene is protein called Ice protein that covers the bacterial surface. Only the ice+ cell are capable to create ice particles and it is thought that this gene could be transferred from one bacterium to another by conjugation. 5 The ice protein helps the cell to surround by water molecules and freeze. As a consequence, the temperature of ice crystals forming will be increased. This means that plants as a habitat of INA, will freeze at higher temperature and this can provoke serious damage in the plants. This is especially important in agriculture ecosystems where those INA bacteria can provoke huge damage in cultivates