Cnifers
Cnifers - Related Videos
08:25
An Improved Method of RNA Isolation from Loblolly Pine (P. taeda L.) and Other Conifer Species
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Cited by 14 •
2010
Many plant tissues, including phloem and xylem from loblolly pine (Pinus taeda L.), contain high levels of phenolics and polysaccharides that interfere with RNA purification. This presentation discusses techniques for the harvest of field-grown tissues and isolation of RNA of sufficient quality for microarrays and other genomic analyses.
01:15
Plant Diversity - Instructor Prep
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2019
Observing Plant Adaptations ExpandTo begin, first remove the compound microscopes from storage, and place them at the appropriate stations around the room, then place one dissecting microscope at each station. NOTE: One set of microscopes for a group of four students works well. Next, acquire prepared slides of moss antheridia, moss archegonia, onion stomata, and conifer pollen, and then place one slide at each microscope station. Now, set out materials needed for plant analysis, like rulers to...
06:16
Plant Diversity - Student Protocol
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2019
Viewing Prepared Slides ExpandTo start the exercise, first split up into groups and find a station with a compound microscope, dissecting microscope and one prepared slide. HYPOTHESES: The alternative hypothesis for this experiment might be that plants have specific adaptations that allow them to survive and reproduce in their own individual terrestrial environments. The null hypothesis for this experiment is that all plants have the same adaptations to live in terrestrial habitats. Find the...
02:39
The Angiosperm Life Cycle
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2020
Plants have a life cycle split between two multicellular stages: a haploid stage—with cells containing one set of chromosomes—and a diploid stage—with cells containing two sets of chromosomes. The haploid stage is the gamete-producing gametophyte, and the diploid stage is the spore-producing sporophyte. Today, most plants grow from seeds and produce flowers and fruit; such plants are called angiosperms. Angiosperms begin as seeds—structures consisting of a protective seed coat, a nutrient...
09:33
A Technical Perspective in Modern Tree-ring Research - How to Overcome Dendroecological and Wood Anatomical Challenges
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Cited by 79 •
2015
Here we present a protocol outlining how to sample wooden specimens for the overall assessment of their growth structures. Macro- and microscopic preparation and visualization techniques necessary to generate well-replicated and highly resolved wood anatomical and dendroecological dataset, are described are described.
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