week6,14 october lecture

Tuesday ,14 october  we learn about algae. We have to bring our own note of algae and fungi topics and shared it into edmodo . By that way we can read different sources of notes from our friends . In kingdom Protista we have 2 major group which is algae and protozoa . Algae is plant like but do not have vascular system and grow in moist habitats. Algae have a great variety of forms, sizes and colors. Some are simple colonies with many cells, some are filamentous, tubular, meshed, membranous or saccate algae. Algae can be classified into seven phyla which is Chrysophyta , Euglenophyta, Pyrrhophyta, Charophyta, Chlorophyta, Phaeophyta, and Rhodophyta. Reproduction of algae is asexually reproduction and sexual reproduction .

This is the main characteristics and differences between blue-green algae（Cyanophyta）、green algae（Chlorophyta）、brown algae（Phaeophyta）and red algae（Rhodophyta）:

Phylum Pigment Photosynthetic product(s) Cell wall Flagellum Cell nucleus Form Note Green algae (Chlorophyta) chlorophyll a and b, α, β-carotene, lutein starch cellulose biflagellate; equal in length; apical Yes unicellular, colonies or multicellular Widely distributed; both terrestrial and marine, ca.1,200 species worldwide. Brown algae (Phaeophyta) chlorophyll a and c, fucoxanthin, β-carotene, lutein laminaran, mannitol cellulose, alginate biflagellate; not equal in length; lateral or not flagellum Yes multicellular 99.7% marine, ca. 2,000 species worldwide. Red algae (Rhodophyta) chlorophyll a,d; a, phycoerythrin, phycocyanin, α, β-carotene floridean starch Cellulose, carrageenan or agarose No Yes Uni- or multi-cellular 98% marine, ca. 6,000 species worldwide. Blue-green algae (Cyanophyta) Chlorophylla; phycocyanin, phycoerythrin, β-carotene, lutein glycogen, cyanophycean starch glycoprotein cellulose No No unicellular; colonies Mostly freshwater (75%), some marine.

Cholophyta

Rhodophoda

Phaeophyta

Chrysophyta

Pyrrophyta

Euglenophyta

Slime molds is resemble fungi in appearance and life style . slime molds have three division which is Myxomycota, Acrosiomycota and Peronosporomycetes.

happy mid sem holiday to dr.wan and my microbiology friends . Have a great time with your beloved family . See you soon . Take care dr. :*