biological classification

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Basis of 5 kingdom of classification

cell structure, body organisation, mode of nutrition, mode of reproduction, phylogenetic relationship

they play imp role in recycling nutrients

chemosynthetic bacteria

citrus canker is caused by

bacteria

golden algae aka

desmids

under suitable condition slime moulds produce?

plasmodium( several feet long)

under unfavourable condition slime moulds produce

fruiting bodies bearing spores at their tips

special feature of aquatic amoeboid protozoans

having silica shell on their surface

example of amoeboid protozoans

entamoeba

example of flagellated amoeba also causes sleeping sickness

trypanosoma

examples of ciliated protozoa

paramecium

example of sporozoan protozoa

plasmodium

wheat rust caused by

puccinia

types of vegetative reproduction seen in fungi

budding, fragmentation, fission

asexual spores in fungi

conidia, sporangiospore, zoospore

sexual spores in fungi

oospore, ascospore, basiospore

stages of sexual steps in fungi

plasmogamy→karyogamy→meiosis

dikaryon condition or dikaryophase is seen in

ascomycetes and basidiomycetes

basis of classification of fungi into different classes

morphology of mycelium, mode of spore formation,fruiting bodies

phycomycetes has

aseptate and coenocytic

asexual reproduction in phycomycetes is by

zoospores or aplanospores

motile asexual spores of phycomycetes

zoospores

non motile asexual spores of phycomycetes

aplanospores

asexual spores of phycomycetes are produced

endogenous produced in sporangium

example of phycomycetes

mucor, rhizopus, albugo

parasitic fungi on mustard

albugo

coprophilous fungi

ascomyctes

asexual repro in ascomyctes

conidia

asexual spores formed on conidiophores are exo/endo

exogenous

ascomyctes aka

sac fungi

sexual spores of ascomyctes are

ascospores

ascocarps bear spores exo/endo

endogenous

examples of ascomyctes

neurospora, aspergillus, clavicep

edible asco

morels and truffles

asco used in biochemical and genetic work

neurospora

class of fungi which lives as parasite on plant

basisio

2 unique feature abt basidio

asexual repro abs

sexual repro +nt but sex organs ab

karyogamy and meiosis in basidio occurs within?

basidiocarp

basidiocarp bears sexual spores exo/ endo

exogenous

example of basidio

agaricus, ustilago(smut), puccinia(rust fungus)

deuteromyctes reproduce only by

conidia

mineral recycling fungus

deutero

examples of deutero

colletotrichum, alternaria, trichoderma

recognised the causal organism of mosaic disease of tobacco

dmriti ivanowsky

demonstrated that infected plant’s extract can cause disease in healthy plants

MW beijerinek

who gave the term virus ( contagium vivum fluidum)

MW beijerinek

scientist who crystallised virus

wm stanley

symptoms in plants with virus infection

mosaic formation, leaf rolling, curling, yellowing and vein clearing, dwarfing, stunted growth

who discovered viroids

t.o. diener

disease caused by prions in cattle

bovine spongiform encephalopathy or mad cow disease

human disease by prions

cr jacob disease