Eumycètes Flashcards

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1
Q

caractéristiques

A

haploïdes (n)
paroi de chitine
réserve NRJ de glycogène
membrane disparait pas mitose
hétérotrophes

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2
Q

hyphes

A

cloisonnées/non cloisonnées

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3
Q

mycorhizes

A

ecto et endo

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4
Q

ectomycorhizes

A

hypes ne pénètrent pas dans cellules

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5
Q

endomycorhizes

A

hyphes pénètrent dans cellules

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6
Q

cycle basique (haplobiontique)

A

asexué:
1. formation appareil sporifère
2. germination

sexué:
1. plasmogamie (fusion cytoplasmes)
2. caryogamie (fusion des noyaux)
3. méiose
4. germination

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7
Q

zygomycètes

A

a/sexuée
moisissures
cénocytes
(cloison. POUR CELL REP)
rhyzoïde (ancrage)

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8
Q

ascomycètes

A

a/sexuée
hyphes cloison.
levures!
pathogènes des végétaux

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9
Q

basidiomycètes

A

multicell (carpophore)
hyphes cloison.
asexuée
pathogènes des végétaux
décomposeurs

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10
Q

évol.

A

zygo + vieux
basidio + évolué

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11
Q

lichens

A

eumycète + algue / cyano

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12
Q

cycle dév asco sexuée

A
  1. conidies de types 1 rencontrent hyphes de types +
  2. PLASMOGAMIE
  3. forme les asques (2 noyaux – dicaryote)
  4. CARYOGAMIE
  5. 1 noyaux diploide dans chaque asque
  6. MÉIOSE
  7. Chaque noyaux se divise en 4 noyaux hap
  8. MITOSE
  9. chaque noyau se divise (8 noyaux)
  10. noyaux deviennent ascropsores
  11. ascospores sont explusés de l’ascocarpe
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13
Q

cycle zygo

A

zygosporange

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14
Q

cycle basidio

A

basidiosporange

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