introduction Flashcards
scientific study of plants
botany
influence everything that we do
plants
generate all oxygen and sugars needed for life on earth
plants
uses of plants
- food and drinks
- plant extracts
- paints
- soaps
- adhesive
- wax
- spices
- drugs
- dye
- oil
- rubber
- perfume
- clothing
- shelter
- paper
- plant extracts
sub fields in botany
- plant morphology and anatomy
- plant physiology, biochemistry
- ecology, evolutionary biology, genetics, molecular biology
- ethnobiology
how plants are constructed
plant morphology and anatomy
how plants work
-plant physiology
-biochemistry
how plants got here
- ecology
- evolutionary biology
- genetics
- molecular biology
plants’ importance
ethnobiology
Plant evolution (CMCKCCZL)
Chlorophyte
Mesostigmatophyceae (unicellular)
Chlorokybophyceae (colonial)
Klebsomidiophyceae (filamentous)
Charophyceae
Coleochaetophyceae
Zygnematophyceae
Land plants
the model plant
Arabidopsis thaliana
- native to europe, asia, and northwestern africa
- annual plant (20-25cm tall)
Arabidopsis thaliana
how tall do Arabidopsis thaliana grow into
20-25cm
genomes of Arabidopsis thaliana
n=5
when was the dna sequencing of Arabidopsis thaliana completed
2001
stats for the dna encoding of Arabidopsis thaliana
125 Mbp; 27,000 genes encoding; 35,000 proteins
how long is the life cycle of Arabidopsis thaliana
6 weeks
TAIR stands for
The Arabidopsis Information Resource
3 domains
- bacteria
- eukarya
-archaea
happened 3.8B yrs ago
mesophilic origin
happened 2.7B yrs ago
differentiation
LUCA stands for
The Last Universal Common Ancestor
= microbe that lived 4b yrs ago
= deep underground in iron-sulfur rich hydrothermal vents
= anaerobic and autotrophic
= metabolism depended upon hydrogen, carbon dioxide, nitrogen (turning it into ammonia)
LUCA
offshoots of the two domains; evolved through endosymbiosis
eukaryotes
= above the soil
=For photosynthesis; reproduction and dispersal; conducts water and nutrients
shoot system
= underground
= anchors the plant in the soil
= absorbs/conducts water and nutrients
= stores nutrients
root system
plant reproductive system
double fertilization
father of taxonomy; swedish botanist, medical doctor
Carolus Linnaeus
when was carolus linnaeus born
may 23, 1707
binomial naming (genus+ specific epithet)
Linnean system
