Search Results for plant-defense-structures
1-20 of 312 Search Results for
The American Biology Teacher. 2019; 813146–150 doi: https://doi.org/10.1525/abt.2019.81.3.146
Published: 01 March 2019
... formation of evolutionary hypotheses. They can be the basis of particularly fruitful and rewarding learning experiences. Gleditsia triacanthos , the honey locust, is a commonly planted ornamental tree. It exhibits striking structures of defense against – and fruit that point to a mutualism with – large...
The American Biology Teacher. 2020; 825279–288 doi: https://doi.org/10.1525/abt.2020.82.5.279
Published: 01 May 2020
.... In 2016, the U.S. Department of Agriculture (USDA) approved the first CRISPR-edited food item for human consumption – white button mushrooms. Yinong Yang, a plant pathologist at Pennsylvania State University, used CRISPR to disable an enzyme that normally causes the mushrooms to brown, thereby...
The American Biology Teacher. 2020; 824241–246 doi: https://doi.org/10.1525/abt.2020.82.4.241
Published: 01 April 2020
... the conclusion of this activity, students should be able to identify traces of plant interactions with herbivores and pathogens; collect data in a structured manner and draw conclusions from those data; interpret ecological interactions among plants, animals, and microbes using an...
The American Biology Teacher. 2019; 819680–685 doi: https://doi.org/10.1525/abt.2019.81.9.680
Published: 01 December 2019
...............................6.430-I Plant defense structures............................3.146-F Plant growth regulators............................8.582-TT Plant-herbivore interactions............................3.146-F Plant nutrition............................8.582-TT Plant pattern formation...
The American Biology Teacher. 2019; 818591 doi: https://doi.org/10.1525/abt.2019.81.8.591
Published: 01 October 2019
.... While the insects are important for plant reproduction, the plants have evolved many ways to repel those that would feed on them. It is interesting that when a plant species evolves a substance or structure deadly to insects, the insect genes generate new ways of overcoming plant defenses. This back-and...
The American Biology Teacher. 2019; 815308–316 doi: https://doi.org/10.1525/abt.2019.81.5.308
Published: 01 May 2019
..., students can choose to focus on health issues, economic issues, structural issues, safety issues, etc.) Resources : National Climate Assessment, Climate Change Adaptation Roadmap, Quadrennial Defense Review from the Department of Defense, National Security Implications of Climate-Related Risks and a...
The American Biology Teacher. 2019; 815334–339 doi: https://doi.org/10.1525/abt.2019.81.5.334
Published: 01 May 2019
... ). Impact of avian and arthropod predation on lepidopteran caterpillar densities and plant productivity in an ephemeral agroecosystem . Ecological Entomology , 28 , 522 – 532 . Howe, A. , Lövei, G.L. & Nachman, G. ( 2009 ). Dummy caterpillars as a simple method to assess predation rates on...
The American Biology Teacher. 2019; 814278–283 doi: https://doi.org/10.1525/abt.2019.81.4.278
Published: 01 April 2019
... the transfer of nematodes from fixative to anhydrous glycerin . Nematologica , 4 , 67 – 69 . Shelley, R.M. ( 2018 ). The myriapods, the world's leggiest animals . Department of Entomology and Plant Pathology, University of Tennessee at Knoxville. https://ag.tennessee.edu/EPP/Pages...
The American Biology Teacher. 2018; 809697–701 doi: https://doi.org/10.1525/abt.2018.80.9.697
Published: 01 November 2018
...-Expression, and Purification of Carbonic Anhydrase from an Extremophilic Bacterium: An Introduction to Advanced Molecular Biology............................1.29-I Investigating Plant Pathogen Responses: Using a Common Moss and a Soil Pathogen to Demonstrate Plant Defense Mechanisms...
The American Biology Teacher. 2018; 808561–569 doi: https://doi.org/10.1525/abt.2018.80.8.561
Published: 01 October 2018
... uncovering the genetic underpinnings of plants and animals ( Raff et al., 1999 ). Important molecular breakthroughs included polymerase chain reaction (PCR) and DNA sequencing, imaging techniques of gene and protein expression patterns (e.g., in situ hybridization and immunolocalization), as well as...
The American Biology Teacher. 2018; 803175–181 doi: https://doi.org/10.1525/abt.2018.80.3.175
Published: 01 March 2018
... example of a puppet script (on indigenous knowledge regarding medicinal plants), used in our research, is provided in Figure 2 . The scripts should aim to give direction and structure, but should be flexible enough to accommodate the number of participants. As seen in Figure 1 , we adapted the...
The American Biology Teacher. 2018; 80111–20 doi: https://doi.org/10.1525/abt.2018.80.1.11
Published: 01 January 2018
... resources from neighboring plants via the mycorrhizal network. d. They may have increased defense against non-mycorrhizal fungi and bacteria.* e. They may have increased ability to access resources in the soil. 4. For PLANTS in mycorrhizal associations, what are the potential costs of being...
The American Biology Teacher. 2017; 799787–791 doi: https://doi.org/10.1525/abt.2017.79.9.787
Published: 01 November 2017
... Approach to Teaching Photosynthesis, Carbohydrate Partitioning, and Energy Flow............................8:655-I Exploring Caenorhabditis elegans Behavior: An Inquiry-Based Laboratory Module for Middle or High School Students............................8:661-I Smartphones for Teaching Plant...
The American Biology Teacher. 2017; 793246 doi: https://doi.org/10.1525/abt.2017.79.3.246
Published: 01 March 2017
..., they have a pair of antennae that help detect food and pheromones. Their eye structure depends on their environment, with some cave-dwellers having no eyes at all and others have large compound eyes. Mouthparts are adapted for defense, killing prey, and gnawing. They reproduce sexually with some...
The American Biology Teacher. 2016; 788657–661 doi: https://doi.org/10.1525/abt.2016.78.8.657
Published: 01 October 2016
... plant's odoriferous compound, coumarin (a defense compound, as I noted in the discussion). Ground-ivy ( Glechoma hederacea ) has a wealth of secondary compounds, evident in its aroma. For English speakers, the plant's scent is reflected in another common name, field balm; yet another common name...
The American Biology Teacher. 2015; 77299–106 doi: https://doi.org/10.1525/abt.2015.77.2.4
Published: 01 February 2015
... literature in which biological structures are identified as vestigial. Our results falsify these creationist hypotheses and show that scientists currently identify many structures as vestigial in animals, plants, and single-celled organisms. Examples include not only organs but also cells, organelles, and...
The American Biology Teacher. 2014; 766373–377 doi: https://doi.org/10.1525/abt.2014.76.6.4
Published: 01 August 2014
... results in reversible co-suppression of homologous genes in trans. Plant Cell, 2 , 279–289. Obbard, D.J., Gordon, K.H.J., Buck, A.H. & Jiggins, F.M. (2009). The evolution of RNAi as a defence against viruses and transposable elements. Philosophical Transactions of the Royal Society of London...
The American Biology Teacher. 2014; 76123–27 doi: https://doi.org/10.1525/abt.2014.76.1.6
Published: 01 January 2014
... hybrides which through the courtesy of the author reached me yesterday, prompts me to make the following statement: In my hybridization experiments with varieties of maize and peas, I have come to the same results as de Vries, who experimented with varieties of many different kinds of plants, among them...
The American Biology Teacher. 2013; 755323–327 doi: https://doi.org/10.1525/abt.2013.75.5.5
Published: 01 May 2013
... identification work; to do this they will have access to any number of the skeletal manuals, anatomy books, and the Internet to help them with their work. We spend a few minutes talking about the environment in the area and brainstorming what kinds of animals and plants they might find. We also talk about...
The American Biology Teacher. 2013; 752102–105 doi: https://doi.org/10.1525/abt.2013.75.2.6
Published: 01 February 2013
.... One gene may produce multiple traits. 7. True. Multiple genes may be involved in producing a given trait such as meat, milk, or egg production in farm animals. Well-nourished plants and animals are more likely to be more productive than those that are starved of nutrients. 8. All cells of a...