Transcript 01-Introduction - Department of Biological Science

Chapter 1
BOT3015L
Plant Biology Laboratory
Presentation created by Danielle Sherdan and edited by Jean Burns-Moriuchi and William Outlaw
All photos from Raven et al. Biology of Plants except when otherwise noted
Scientifically supported relationships between the major
groups of organisms
Insects and
Arthropods
Plants
Prokaryotes
(no photo)
Vertebrates
Animals
Fungi
Nucleate cells
Obscure root of
the tree of life
Tree of life project
read more at
www.tolweb.org
"The affinities of all the beings of the
same class have sometimes been
represented by a great tree... As buds
give rise by growth to fresh buds, and
these if vigorous, branch out and
overtop on all sides many a feebler
branch, so by generation I believe it
has been with the great Tree of Life,
which fills with its dead and broken
branches the crust of the earth, and
covers the surface with its ever
branching and beautiful ramifications."
Charles Darwin, 1859
Notice also that there are branches
that connect to other branches to
represent endosymbiosis
Today
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Day-by-day syllabus review
Class policy
Science and maintaining a lab notebook
Plants are our sustenance
Crop investigations
Chapter 2
Characteristics of plant cells
and plant-cell division
• Cellulosic cell walls
• Plastids such as
chloroplasts for oxygenic
photosynthesis
• Large vacuoles
From Collin County
Community College District
BioLab
Elodea leaf
Chapter 3
Flowering plants
From Outlaw lecture
Evolution and function
of floral parts and
pollination
Chapter 4
Seed and fruit
dispersal
Dandelions
disperse by wind
Coconuts
disperse by water
A dwarf plant
treated with
gibberellin, a
plant hormone
Chapter 5
Effects of plant
hormones on plant
growth
Control, a
dwarf plant
Chapter 6
Germination
Primary Growth
Maize seed consists of
seed coat containing the
embryo and nutritive
tissue
Germinating maize seed
Chapter 7
Experimenting with Guard cells
Guard cells and stomata in the epidermis of Vicia faba
Stomata open
Stomata closed
Photos from Outlaw’s lab and
also featured on the cover of the scientific journal Archives of Biochemistry and Biophysics in 2002
Chapter 8
Data Analysis
BOT3015L student work
Chapter 9
Mycorrhizae
Without fungi
With fungi
Pine tree seedlings
Chapter 10
Protists
Colonial green algae
Red algae
Chapter 11
Fungi
Morel, one of many
edible fungi
Lichens are symbiotic
relationships between
fungi and green algae
and/or cyanobacteria
Chapter 12
Non-flowering plants
bryophytes
Marchantia sp.
liverwort
ferns
Matteuccia sp.
gymnosperms
Pinus sp.
Today
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Day-by-day syllabus review
Class policy
Science and maintaining a lab notebook
Plants are our sustenance
Crop investigations
Class Policy
Lab notebook
Prerequisites
Pencil
Insurance
Textbook
1. Plagiarism
Required materials Lab manual 2. Cheating
3. Unauthorized group
Attendance
work
ADA Statement
4. Fabrication
Academic Honor Policy
5. Falsification
6. Misrepresentation
Performance and Participation
7. Resubmission
Safety
Prior to each class:
Read the lab materials
Grading
Drawing list
Review questions
Attendance and statement of
Protocols
understanding class policy
Today
•
•
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•
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Day-by-day syllabus review
Class policy
Science and maintaining a lab notebook
Plants are our sustenance
Crop investigations
Scientific Skills
Keen observations are recorded
The specimen
What are your observations?
How would you best record
observations about this
specimen?
From Collin County
Community College District
BioLab
Example drawing
Example drawing of a similar specimen
From Collin County Community College District BioLab
Student work, BOT3015
How does the drawing represent the specimen well?
How could the drawing better represent the specimen?
Record your observations accurately and thoroughly
Record interpretations with drawings that emphasize important aspects
Observing specimens
If your specimen has several cell types, draw a few
cells of each type exactly as they appear and
emphasize important information (e.g. cell-type
distribution, patterns, cell variation, sections) with
diagrammatic sketches and descriptions.
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13 June 2005
Notebook (left / right)
Treatment of Brassica rapa plants with GA
Leave10:05
space
in front for table of contents
am
Time:
_√__
Left
_20_ (thinking)
mm
Measure plant heights
Right
(lab work)
1.
2. _40_ mm
_√_
___
____
•Interpretations
Apply 20 µl 100 µM GA to 1 leaf of plants 1, 2 and 3.
•Conclusions
Apply 20 µl 10 µM GA to 1 leaf of plants 4, 5 and 6.
•Graphs
……..etc.…….
•Ideas
for future
experiments
•Answers to review
questions and
objectives
st
st
• Observations
• Solution preparation
• Methods
• Data collected
during experiment
Scientific Skills
Keen observations are recorded
Problem-solving skills
Good organizational skills
Today
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Day-by-day syllabus review
Class policy
Science and maintaining a lab notebook
Plants are our sustenance
– Effects of agriculture on animals
– Effects of agriculture on plants
• Crop investigations
Agriculture, the primary means of
procuring food since ~10,000 years
ago (less than 1% of human existence)
Human Population
Maize
Called “Indian corn” to distinguish it from other Old
World Grains, but in American English, the name has
been shortened to simply “corn.”
From Outlaw’s garden, BOT3015 lecture
Teosinte and Maize
Effects of selection
on morphology
Brassica oleracea
Publix Greenwise Aug. 2005
Crops of the Americas U.S. postal stamps
Today
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Day-by-day syllabus review
Class policy
Science and maintaining a lab notebook
Plants are our sustenance
Crop investigations
– Choose a crop
– Research via text and computer
– Presentations
World of Domesticated Crops