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Lab 8. Chlorophyta, Lichens, Symbiosis. Green Plants. Common name : Green plants Synonyms : Viridiplantae Mode of nutrition : Autotrophic; green chloroplasts (some parasitic members) Habitat : Freshwater, marine, terrestrial Growth habit : Unicellular, filamentous, various multicellular

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lab 8

Lab 8

Chlorophyta, Lichens, Symbiosis

green plants
Green Plants
  • Common name: Green plants
  • Synonyms: Viridiplantae
  • Mode of nutrition: Autotrophic; green chloroplasts (some parasitic members)
  • Habitat: Freshwater, marine, terrestrial
  • Growth habit: Unicellular, filamentous, various multicellular
  • Cell wall: Cellulose, hemicellulose, pectins
  • Undulipodia (“flagella”): Whiplash (2 to 1000+) or none
green plants1
Green Plants
  • Food storage: Starch
  • Clonal reproduction: zoospores, aplanospores, multicellular propagules, vegetative
  • Sexual reproduction: Unicellular, haploid dominant, diploid dominant, alternation of generations
  • Included Phyla: Chlorophyta, Hepatophyta, Anthocerophyta, Bryophyta, Lycophyta, Psilotophyta, Sphenophyta, Pterophyta, Cycadophyta, Ginkgophyta, Coniferophyta, Gnetophyta, Anthophyta
chlorophyta
Chlorophyta
  • General features of the green plants
  • Common name: Green algae
  • Synonyms: None
  • Habitat: Freshwater, marine, terrestrial
  • Growth habit: Unicellular, colonial, filamentous, flat sheet, plectenchyma, parenchyma
  • Undulipodia (“flagella”): two or more whiplash, or none
  • Clonal reproduction: Mitosis of unicells, zoospores, rarely aplanospores
chlorophyta1
Chlorophyta
  • Sexual reproduction: Haploid dominant, diploid dominant, alternation of generations, unicellular; isogamous, anisogamous, oogamous
  • Representative genera: Chara, Chlamydomonas, Cladophora, Closterium, Gonium, Hydrodictyon, Monostroma, Oedogonium, Pediastrum, Scenedesmus, Spirogyra, Ulva, Volvox
  • Recognized by: Green plants that are not “land plants” (embryophytes)
a pediastrum
APediastrum

Chlorophyta

a scenedesmus
AScenedesmus

Chlorophyta

u scenedesmus
UScenedesmus

Chlorophyta

a volvox
AVolvox

Chlorophyta

u volvox
UVolvox

Chlorophyta

a spirogyra
ASpirogyra

Chlorophyta

u spirogyra
USpirogyra

Chlorophyta

a oedogonium
AOedogonium

Chlorophyta

u cladophora
UCladophora

Chlorophyta

a cladophora
ACladophora

Chlorophyta

d codium
DCodium

Chlorophyta

d ulva
DUlva

Chlorophyta

a chara
AChara

Chlorophyta

lichens
Lichens
  • Fungus and alga
  • Ascomycota and Chlorophyta most common (all examples in lab)
  • Autotrophic
  • Clonal reproduction by soredia or isidia
  • Sexual reproduction by ascospores, followed by parasitism of free-living algae
a physcia
APhyscia

Lichens