14 Flashcards

1
Q

what type of FB does sordaria of sordariales have?

A

perithecia

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2
Q

describe the perithecia of sordaria of sordariales

A

dark

sometimes doesn’t have have a pre-formed pore

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3
Q

describe the peridium of sordaria of sordariales

A

leathery

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4
Q

describe the asci of sordaria of sordariales

A

asci are in fascles

ovoid to cylindrical

thin refractile apical ring which is sometimes deliquesce

deliquesce

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5
Q

describe the centrum of sordaria of sordariales

A

deliquescent paraphyses which grow from the bottom

asci - mature at diff times & singly occupy the ostiole

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6
Q

describe the dispersal of ascospores of sordaria of sordariales

A

forcibly discharged by the apical apparatus (sphincter) where they’re squeezed out of the perithecium

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7
Q

describe how the asexual stage forms in sordaria of sordariales

A

will sometimes from right from the spores still contained in asci

will push through the walls of asci & form conidiogenous cells

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8
Q

describe the ascospores of sordaria of sordariales

A

hyaline to dark

1-2 celled

various types of ornamentation

in some taxa there is a gelatinous sheath or appendages present

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9
Q

what is the substrate of sordaria of sordariales?

A

dung

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10
Q

what is a characteristic feature of sordaria of sordariales?

A

deliquesce asci

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11
Q

describe the perithecia of xylariales

A

leathery to carbonaceous

embedded in or on a dark stroma

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12
Q

fascles

A

hymenium that arises from ascogenous hyphae from croziers

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13
Q

describe the asci of xylariales

A

exist in a basal layer (hymenium)

cylindrical to club shape

have a thin amylose apical ring or stack of rings

mature at diff times resulting in ascospores of diff ages in the perithecium

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14
Q

describe the ascospores of xylariales

A

dark

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15
Q

does xylariales have periphyses?

A

yes

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16
Q

describe the periphyses of xylariales

A

present int he neck of the FB

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17
Q

describe the paraphyses of xylariales

A

develop from the bottom & sides of the perithecium causing an expansion - unique

will deliquesce

become lysed by the developing asci & become invisible

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18
Q

what stage is easily identified in Xylariales?

A

anamorphic - sympodula

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19
Q

what is the substrate of Xylariales?

A

wood, form cankers

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20
Q

what is unique about Xylariales?

A

paraphyses develop from the bottom & sides of perithecium causing an expansion

21
Q

what are 3 genres in Xylariales?

A

xylaria

hypoxylon

daldinia

22
Q

describe the perithecia of Hypocreales

A

brightly coloured

on a stroma

form by the growth of pseudoparaphyses

sclerotia develop out of ergot, stroma form from sclerotia

23
Q

describe the paraphyses of Hypocreales

A

pseudoparaphyses - form by the growth of apical paraphsyes

exist on the inside of the venter & grow downwards

develop top downwards

24
Q

describe the asci of Hypocreales

A

ovoid to cylindrical

in a hymenium

formed by croziers

have apical pores in their thickened apex with or without an apical apparatus

25
describe the spore dispersal of Hypocreales
forcibly discharged
26
describe the anamorphic stage of Hypocreales
vary in a wide range of forms
27
describe the substrate of Hypocreales
above ground plant substrate
28
what type of lifecycle does Hypocreales have?
saprotrophic (plant) or pathogenic (plants & macrofungi)
29
epichole
brightly coloured perithecia & stroma
30
what are the genera in Hypocreales?
nectria claviceps epichloe
31
what is unique about Hypocreales?
growth of pseudoparaphyses (apical growth) which attach to the bottom of the perithefcium
32
what organism is responsible for Dutch Elm disease?
Opiostoma of Ophiostomatales
33
describe the ascocarp of Opiostoma of Ophiostomatales
black perithecium perithecium has a bulbous base & a long neck the ostiole contains hairs holding the ascospores in a mucilaginous drop
34
describe the asci & ascospores of Opiostoma of Ophiostomatales
ascospores are stuck together by the liquid of deliquesced asci asci are in a basal facile (hymenium) asci are globulose & deliquesce formed by croziers no periphyses or paraphyses
35
describe the anamorphic stage of Opiostoma of Ophiostomatales
called sympodula produced on leaves in the tunnels of bark-boring beetles
36
describe the spore dispersal of Opiostoma of Ophiostomatales
insect dispersed dispersed when in the asexual or sexual stages
37
describe the type of lifecycle of Opiostoma of Ophiostomatales
saprotrophic or parasitic on wood
38
describe the substrate of Opiostoma of Ophiostomatales
wood
39
what are the unique features of Opiostoma of Ophiostomatales?
asci are in a basal facile (hymenium), globulose & deliquesce no periphyses or paraphyses
40
describe the perithecia of Creatocysits of Microascales
long necked asci are scattered no hymenium
41
describe the asci of Creatocysits of Microascales
deliquesce early in development of the perithecium globose & deliquiscent
42
describe the spore dispersal of Creatocysits of Microascales
ascospores are released single file in a slime insect dispersal slime has a fruity smell which attracts insects
43
describe the type of lifecycle of Creatocysits of Microascales
mostly parasites on plants
44
describe the FB of Erysiphe of Eryisphales
Cleistothecia with various appendages hair like appendages
45
describe the asci of Erysiphe of Eryisphales
basal fascicles (hymenium) club-shaped & not globose
46
describe the spore dispersal of Erysiphe of Eryisphales
ascospores are forcibly discharged from asci by a squirt mechanism spores then escape the FB through an opening created by pre-determined lines of weakness in the peridium
47
describe the type of lifecycle of Erysiphe of Eryisphales
saprotrophs
48
describe the asci of Plectomycetes
scattered spherical or globose