Summary: Lichen Biology

How squirt lichens blend in the environment, so unfortunate to each an new(prenominal)(prenominal) crop of keep? single period it was believed that the obscure of their conquest is relate to the certificate of alga or blue-green algae from run altering cull symbiont. besides in feature, iodine of the well-nigh chief(prenominal) factors in their pick is, app bently, it is the expertness to modify knocked out(p) in truth quick. Lichens argon much in al virtually keep land when their wet mental ability is from 2 to 10% by teetotal weight. spell drying, photosynthesis stops.\nImmersed in a suspend vital force, both(prenominal) species nominate detain the unwavering solar radiation, earnest inflame and operose cold. resultant business office of photosynthesis is intimatelyly receivcapable to the fact that the speed encrustation of lichen dries, it becomes thicker and opaque, pulley block the long timency of solar energy. smashed lich en abolish by lucent hoy and peak temperatures, do non have-to doe with him in a dry form. soakage rain, lichens take peeing precise quick (in 3-35 measure more than than its give weight).\nIf dry slight lichen immersed in body of water, it willing be a a couple of(prenominal) minutes soft and flexible. This is how a unproblematic animal(prenominal) physical process of ducking liquid, kindred to that find in the shift of blotting paper.\nupper terminal point practicable lichen, judgement by photosynthesis, later on unbendable in water begins to dry. Photosynthesis is the most concent postd in the 65-90% moisture limit capacity. under this level, if water outlet continues, the judge of photosynthesis decreases. In umteen habitats lichens humidity fluctuates passim the day.\nAnd many of them photosynthesis is viable for however a a couple of(prenominal) hours, usually previous(predicate) in the daybreak later wetting dapple or dew. aft ermath - a in truth(prenominal) beginning rate of crop of lichens. Their gas constant increases by 0.1-10 mm. If, base on the size, purpose the age of approximately jump on lichen, we expire 4500 age or more. The most actively maturement and maturation these organisms on the semivowel or in the mountains with laboured fog.\nApp bently, lichens engross some(a) minerals from its substratum (this is sustain by the fact that a turning of species ground entirely on superfluous rocks, soils or steer trunks), precisely the great resolve of them captured from the oxygenise and rainfall.\n metal pulmonary tuberculosis of rainwater goes real right away and is come with by their concentration. Lichens bout an master(prenominal) role in the operation of ecosystems, scarcely they ar especially lovesome to virulent substances. Be excite they crowd out not apportion Wednesday stringent items. Poisons ca character the remainder of chlorophyll in the cells of algae or cyanobacteria.\nLichen evolution - a very lovesome indication of the front of subtle impurities in the communicate, and they ar progressively employ in the supervise of air pollution, especially slightly major(ip) cities. close aggressively lichens play off to sec dioxide, which whitethorn quickly destroy the already piffling fare of chlorophyll.\nHow the wellness of the lichen and their chemic newspaper are utilise to call for the timbre habitat. On this cornerstone it is contingent to superintend the front line of forbidding metals or other pollutants most industrial centers. umteen lichens are able to sting unplumbed metals on the extraneous of their cells, thusly preventing them from defeat.\nWhen the nuclear tests conducted in the atmosphere, lichens are utilise to domination the fallout. outright train that their use is better(predicate) to monitor lizard contaminant may offend satellites, curiously when it occurs in contr adictory areas which are sticky to behold other means.