PODCAST · education
Plant Science
by Dr Michael Emmerling
Plant Science focusses on the green, silent, and motionless life forms we take for granted. Plants are amazing organisms. Literally rooted in one spot, they are able to cope with a wide range of environmental conditions, while at the same time using only light, carbon dioxide and water to generate energy-rich sugars that drive and support the vast majority of life on the surface of our planet.
Episodes
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Plant Biotechnology II
Over thousands of years, humans have "domesticated" wild type plants and animals through selective breeding. Examples from the plant world include the breeding of modern hybrid maize from teosinte, or the development of modern wheat from emmer. As our knowledge of genomics and molecular...
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Plant Biotechnology I
Over thousands of years, humans have "domesticated" wild type plants and animals through selective breeding. Examples from the plant world include the breeding of modern hybrid maize from teosinte, or the development of modern wheat from emmer. As our knowledge of genomics and molecular...
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Stems II
The transition from water to land required plants to develop efficient transport pipelines for water and nutrients to the leaves, and for energy-rich carbohydrates (from photosynthetic carbon dioxide fixation) to tissues that require energy (e.g. roots, storage organs etc.). Xylem and phloem are...
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Stems I
A very important part of plant cells is located outside the cells themselves: plant cell walls. Composed of numerous different building blocks (mostly polysaccharides, but also proteins and, particularly in cells that contribute to structural strength, lignins), cell walls determine the shape of...
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Photosynthesis II
So how does photosynthesis actually work? In this lecture we explore the structures that capture light energy, photosystems 1 and 2, and how that light energy is harnessed to generate NADPH, and to build up a proton gradient across the thylakoid membrane. Just like in a hydroelectric plant, the...
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Leaves and photosynthesis I
After finishing our quite extensive foray into leaf structure, function, and modifications, we finally start to look at what is arguably the main purpose of leaves: absorbing light energy, and using that energy to fix carbon dioxide. In this lecture we will discuss the discovery of…
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Leaves II
Leaves have features that prevent uncontrolled water loss such as cuticles and wax layers. Because these impermeable layers also prevent diffusion of carbondioxide into the leaf air space plants have developed structures that act like valves and control the flow of water vapour and carbondioxide:...
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Leaves
Leaves are the main "organs" of plants responsible for capturing light energy, and converting it through fixation of carbondioxide into chemical energy in the form of sugars. In this lecture we look at modified leaves that serve as adaptations to lack or excess of water, lack of nutrients, and as...
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Leaves (handout)
Leaves are the main "organs" of plants responsible for capturing light energy, and converting it through fixation of carbondioxide into chemical energy in the form of sugars. In this lecture we look at modified leaves that serve as adaptations to lack or excess of water, lack of nutrients, and as...
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Plant Hormones III
The third and final lecture on plant hormones is about brewing beer and Prince. No, of course not, but both are used as examples for the effects of gibberellins and abscisic acid. Gibberellins were first discovered in "foolish rice" (or bakanae) where a fungal infection results in increased…
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Plant Hormones II
This lecture is about specific effects of two groups of plant hormones: cytokinins, and ethylene. The main effects of cytokinins are stimulation of cell proliferation, and stimulation of growth of shoots from undifferentiated tissue (callus) in plant tissue culture. Together with auxins…
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Plant Hormones
As we saw in previous lectures, plants are "rooted" to one spot. As a consequence they can not avoid adverse conditions such as drought, heat, cold etc. yet are able to survive seemingly extreme conditions. Almost all aspects of plant development and physiology are influenced and directed by…
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Symbiosis
Plants can't do it all by themselves. In order to get the most out of the soil and, indeed, the air, most plants form symbiotic relationships with bacteria and fungi. We take a look at Anabaena, root nodules, and mycorrhizae. Roots are often modified to form "survival structures" containing…
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How Roots Grow
Roots anchor plants in soil, are responsible for the uptake of water and nutrients, and control which molecules are ultimately taken up by the plant. In this lecture we take a look at the root morphology of monocots and dicots, how lateral roots aad root hairs are formed, and describe different...
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Roots and Soils
In this lecture we take an introductory look at the role of soil in plant growth. We will briefly go over how soil is formed, what makes a good soil or a bad soil, what nutrients can typically be found, and how nutrient cycles critically involve soil. Copyright 2012 La Trobe University, all…
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ABOUT THIS SHOW
Plant Science focusses on the green, silent, and motionless life forms we take for granted. Plants are amazing organisms. Literally rooted in one spot, they are able to cope with a wide range of environmental conditions, while at the same time using only light, carbon dioxide and water to generate energy-rich sugars that drive and support the vast majority of life on the surface of our planet.
HOSTED BY
Dr Michael Emmerling
CATEGORIES
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Frequently Asked Questions
How many episodes does Plant Science have?
Plant Science currently has 27 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is Plant Science about?
Plant Science focusses on the green, silent, and motionless life forms we take for granted. Plants are amazing organisms. Literally rooted in one spot, they are able to cope with a wide range of environmental conditions, while at the same time using only light, carbon dioxide and water to generate...
How often does Plant Science release new episodes?
Plant Science has 27 episodes. Check the episode list to see recent publication dates and frequency.
Where can I listen to Plant Science?
You can listen to Plant Science on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts Plant Science?
Plant Science is created and hosted by Dr Michael Emmerling.
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