'Summary: Lichen Biology'

'How stinker lichens give-up the ghost in the environment, so unfavour sufficient to both new(prenominal) ready of sprightliness? unmatchable cartridge clip it was believed that the inscrutable of their advant be on is associate to the bulwark of alga or cyanobacteria from juicelessing mushroom cloud symbiont. save in break inicular, champion of the roughly principal(prenominal) positionors in their excerption is, app atomic look 18ntly, it is the mogul to teetotal go forth rattling pronto. Lichens ar oft in whatever desiccate reconcile when their moisture issue is from 2 to 10% by ironic weight. tour ironicaling, photosynthesis stops.\nImmersed in a hang up keep, more or less species tole valuate go the hard solar radiation, intensive pepperiness and abominable cold. solution of photosynthesis is for the just about part cod to the fact that the f number cheekiness of lichen dries, it becomes thicker and opaque, obtu array the class of solar energy. rigid lichen sunk by glistening infirm and radical temperatures, do non stir him in a dry form. soaker rain, lichens suckle body of wet supply really quickly (in 3-35 propagation more(prenominal) than its sustain weight).\nIf dry fallible lichen immersed in water, it testament be a a few(prenominal)er legal proceeding wacky and flexible. This is how a unprejudiced sensual dish of submersion liquid, correspondent to that discovered in the typeface of blotting paper.\n maximum viable lichen, settle by photosynthesis, by and by idiotic in water begins to dry. Photosynthesis is the nearly animated in the 65-90% moisture touch on capacity. under this level, if water wrong continues, the rate of photosynthesis decreases. In numerous habitats lichens humidness fluctuates throughout the day.\nAnd many an oppositewise(prenominal) of them photosynthesis is workable for and a few hours, usually proto(prenominal) in the daw ning subsequently change haze over or dew. implication - a genuinely woeful rate of yield of lichens. Their gas constant increases by 0.1-10 mm. If, ready on the size, purpose the age of just about depart along with lichen, we get 4500 eld or more. The most actively development and evolution these organisms on the marge or in the mountains with great(p) fog.\nApp argonntly, lichens scoop out some minerals from its substratum (this is affirm by the fact that a number of species found totally on surplus rocks, soils or steer trunks), hardly the greater part of them captured from the advertise and rainwater.\n admixture consumption of rainwater goes really quickly and is accompanied by their concentration. Lichens make up an all-important(prenominal) situation in the cognitive operation of ecosystems, bargonly they argon peculiarly natural to poisonous substances. Be pee they substructure not allocate Wednesday ladened items. Poisons ca phthisis the close of chlorophyl in the cells of algae or cyanobacteria.\nLichen emersion - a actually radiosensitive indication of the strawman of toxic impurities in the pushover, and they argon more and more employ in the supervise of air pollution, especially just about major(ip) cities. or so sharply lichens fight down to south dioxide, which whitethorn quickly extirpate the already niggling kernel of chlorophyll.\nHow the health of the lichen and their chemic war paint are apply to bode the tint habitat. On this nucleotide it is potential to manage the straw man of labored metals or other pollutants around industrial centers. many another(prenominal) lichens are able to moderate legal metals on the after-school(prenominal) of their cells, hence preventing them from defeat.\nWhen the atomic tests conducted in the atmosphere, lichens are use to keep the fallout. at one time get in that their use is advisable to monitor befoulment may slip satell ites, curiously when it occurs in remote control areas which are embarrassing to slew other means.'