About lichens in detail.
Answers
Answered by
1
Hello friend! I am glad to help you, here is the answer.
Lichens:
>> Lichens are close associations of two different organisms of which one is an alga and the other is a fungus.
>> The algal component of the lichen is called phycobiont while the fungal component is known as mycobiont.
>> On the basis of thallus organisation, three types of lichens, viz, crutose, foliose and fruitcose have been recognized.
>> Crutose lichens occur as crusts on the rock or bark of a tree. Lecanora and Haematomma are the examples of crutose lichens.
>> Foliose lichens are dorsiventrally flattened leafy lichens. They are attached to substratum by rhizoid-like structures called rhizines. Parmelia, Collema and Peltigera are the examples of Foliose lichens.
>> Fruitose lichens are shruby lichens. They posses a cylindrical branched and erect thallus which offers them a shrub-like appearance, Usnea, Alectoria and Cladonia are fruitose lichens.
Economic importance of lichens:
>> Many lichens such as Lecanora esculenta and Umbilicaria esculated are used as food.
>> Parmelia is used in the preparation of chocolates and pastries.
>>Lichens such as species of Cladonia, Evernia and Parmelia are used as fodder.
>> Usnic acid which is obtained from Usnea and Cladonia is widely used as an antibiotic against Gram positive bacteria.
>> Some lichens for example, species of Lobaria and Citraria are useful in the treatment of tuberculosis.
>> Parmelia is useful in the treatment of epilepsy.
>> Species of Evernia and Ramalina are used in the preparation of soaps and other cosmetics.
I hope this will help you. Thank you.
- BRAINLYSTAR ROSETA
Lichens:
>> Lichens are close associations of two different organisms of which one is an alga and the other is a fungus.
>> The algal component of the lichen is called phycobiont while the fungal component is known as mycobiont.
>> On the basis of thallus organisation, three types of lichens, viz, crutose, foliose and fruitcose have been recognized.
>> Crutose lichens occur as crusts on the rock or bark of a tree. Lecanora and Haematomma are the examples of crutose lichens.
>> Foliose lichens are dorsiventrally flattened leafy lichens. They are attached to substratum by rhizoid-like structures called rhizines. Parmelia, Collema and Peltigera are the examples of Foliose lichens.
>> Fruitose lichens are shruby lichens. They posses a cylindrical branched and erect thallus which offers them a shrub-like appearance, Usnea, Alectoria and Cladonia are fruitose lichens.
Economic importance of lichens:
>> Many lichens such as Lecanora esculenta and Umbilicaria esculated are used as food.
>> Parmelia is used in the preparation of chocolates and pastries.
>>Lichens such as species of Cladonia, Evernia and Parmelia are used as fodder.
>> Usnic acid which is obtained from Usnea and Cladonia is widely used as an antibiotic against Gram positive bacteria.
>> Some lichens for example, species of Lobaria and Citraria are useful in the treatment of tuberculosis.
>> Parmelia is useful in the treatment of epilepsy.
>> Species of Evernia and Ramalina are used in the preparation of soaps and other cosmetics.
I hope this will help you. Thank you.
- BRAINLYSTAR ROSETA
Similar questions