Lichens
Willy Tirza Eden, S.Farm., M.Sc., Apt.
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Lichens: Symbiotic Relationships Between Fungi and Photosynthetic Organisms, Assignments of Chemistry
An overview of lichens, including their symbiotic relationship between fungi and photosynthetic organisms, their sensitivity to air pollution, various forms and layers, identification methods, and their significant roles in nitrogen fixation, water absorption, and soil building. Crustose, foliose, and fruticose lichen types are discussed, along with their internal structures.
Typology: Assignments
2019/2020
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Lichens
Willy Tirza Eden, S.Farm., M.Sc., Apt.
Lichens Hubungan simbiosis antara fungi ( umumnya ascomycetes) & photosynthetic autotroph (typically an alga or cyanobacterium) Sensitif terhadap polusi udara Bbrp bentuk – crustose (datar & berkulit keras), foliose (spt daun, kurang melekat erat pada substrat), fruticose (bbtk spt sabuk hingga silindris, tumbuh tegak atau bergantung); bentuk antara umumnya tdpt Typically divided into 1 or more layers internally
Lichens cont. Cructose lichens , tumbuh kearah substratum dan membentuk kerak Foliose lichens , tumbuh serupa lembaran daun Fruticose lichens , mempunyai pemanjangan seperti jari. Badan (thallus) lichens terbentuk saat hyphae fungi tumbuh disekeliling alga, menjadi medulla. Hyphae fungi memanjang kearah dalam tubuh lichens membentuk rhizines yang berfungsi untuk perlekatan. Hyphae fungi juga membentuk kortex yang merupakan penutup permukaan alga.
Crustose Lichens
Fruticose Lichens
Lichens cont.
Susunan medulla 1. Kortex, 2. lapisan alga, 3. hifa fungi,
- kortex, 5. rhizines (2 dan 3 adalah medulla)