Economical importance of bryophytes

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ECOLOGICAL IMPORTANCE OF BRYOPHYTES Mosses and Bryophytes are the first organiasms to colonise rocks. They colonise rock by acidic secretion. This acidic secretion is due to the death of mosses. When the rock is decomposed it helps in soil formation. Therefore New soils are formed. The soil act as binders.  It prevent soil erosion. The water retention capacity of the soil is high ie, water holding capacity of the soil is high.  This reduces surface water run-off which prevent soil erosion. Bryophyte helps in the recycling of nutrients. ECONOMICAL IMPORTANCE OF BRYOPHYTES. 1) SPHAGNUM Sphagnum has high absorptive power with antiseptic property. This can be used to replace cotton in bandages. 2) MERCHANTIA   Mercahntia cures pulmonary tuberculosisand affliction (pain) in liver. Antibiotic substances are also extracted from bryophytes. it also acts as antiseptic, and as preservative POLYTRICHUM Polytrichum dissolove stone in kidney and in gall bladder. 3) IN RESEARCH It is used in the fie
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Introduction and contributions of scientists of algae

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          Introduction 
          Scientists and History
          
        
          

     

     INTRODUCTION
     
     Algae are the diverse group of relatively simple, chlorophyll containing, photoautotropic and oxygen evolving thalloid organism. 
       
Where alga-seaweed and  logy -study
So, study of algae is algology and also phycology. 
Where phycos- seaseed  from latin word. 


HISTORY
The term algae was first used by Carolous linnaus in 1753.
- FE Fritsch (1935) divideed algae into 11 classes in his book 'structure and reproduction of algae' mainly on the basks of pigmentation, thallus structure and mode of reproduction as well as life cycle. So he is know as father of algae. 

- MOP(Mandayam Osuri Parthasarathy) Lyengar was a indian botanidt and phycologist who researching the structure, cytology, reproduction and taxonomy of algae. So he is the father of lndian algology. 

- Lamouroux and willium henry harvey created significant groups with in algae. 
- harvey had been called the father of modern phy cogy. For his  division of algae into 4 major type based on pigmentation. 
     
  

All the best.......



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