Plant Biology Tea...
Follow
Find
106.2K views | +57 today
 
Scooped by Mary Williams
onto Plant Biology Teaching Resources (Higher Education)
Scoop.it!

Interesting letter to the editor re interpretations of rice weediness paper...

Interesting letter to the editor re interpretations of rice weediness paper... | Plant Biology Teaching Resources (Higher Education) | Scoop.it

A good one to add to your files for your class discussions about GM, post-publication peer review etc. The last paragraph is very interesting, paraphrasing guidelines on the "potential misuse of inappropriately presented and described work"

more...
No comment yet.
Plant Biology Teaching Resources (Higher Education)
Hooks and hot topics for university teachers and students
Curated by Mary Williams
Your new post is loading...
Your new post is loading...
Scooped by Mary Williams
Scoop.it!

The Victorian Gentlewoman Who Documented 900 Plant Species

The Victorian Gentlewoman Who Documented 900 Plant Species | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Marianne North
more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Role of transcriptional regulation in the evolution of plant phenotype: A dynamic systems approach (Great review for teaching)

Role of transcriptional regulation in the evolution of plant phenotype: A dynamic systems approach (Great review for teaching) | Plant Biology Teaching Resources (Higher Education) | Scoop.it

"A growing body of evidence suggests that alterations in transcriptional regulation of genes involved in modulating development are an important part of phenotypic evolution, and this can be documented among species and within populations. While the effects of differential transcriptional regulation in organismal development have been preferentially studied in animal systems, this phenomenon has also been addressed in plants. In this review, we summarize evidence for cis-regulatory mutations, trans-regulatory changes and epigenetic modifications as molecular events underlying important phenotypic alterations, and thus shaping the evolution of plant development."

Mary Williams's insight:

This would be a great review article to read with a genetics class

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

The genome of cultivated sweet potato contains Agrobacterium T-DNAs with expressed genes: An example of a naturally transgenic food crop

The genome of cultivated sweet potato contains Agrobacterium T-DNAs with expressed genes: An example of a naturally transgenic food crop | Plant Biology Teaching Resources (Higher Education) | Scoop.it

"We communicate the rather remarkable observation that among 291 tested accessions of cultivated sweet potato, all contain one or more transfer DNA (T-DNA) sequences. These sequences, which are shown to be expressed in a cultivated sweet potato clone (“Huachano”) that was analyzed in detail, suggest that an Agrobacterium infection occurred in evolutionary times. One of the T-DNAs is apparently present in all cultivated sweet potato clones, but not in the crop’s closely related wild relatives, suggesting the T-DNA provided a trait or traits that were selected for during domestication. This finding draws attention to the importance of plant–microbe interactions, and given that this crop has been eaten for millennia, it may change the paradigm governing the “unnatural” status of transgenic crops. "

Mary Williams's insight:

Someone on facebook asked if this could be a consequence of contamination from pollen of GM crops. Here's my answer.


"No - there are two things that tell us that this has nothing to do with contamination from modern GMOs. First and most importantly, the Agrobacterium T-DNA genes found in sweet potato are not present in genetically-engineered crops. Instead, they are the native bacterial genes found in wild Agrobacterium T-DNA, which are removed when this organism is used for gene transfer protocols. Second, this cluster of genes is conserved in several hundred cultivated varieties, indicating that it was introduced into the sweet potato genome long ago (thousands of years?), long before biotechnology was invented."

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Plant defense phenotypes determine the consequences of volatile emission for individuals and neighbors

Plant defense phenotypes determine the consequences of volatile emission for individuals and neighbors | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Both the frequency of sesquiterpene-emitting individuals and the defense capacity of individual plants determine the consequences of sesquiterpene volatile emission for individuals and their neighbors in populations of the wild tobacco Nicotiana attenuata.
Mary Williams's insight:

Nice press release here too http://www.sciencedaily.com/releases/2015/04/150415114028.htm

more...
No comment yet.
Rescooped by Mary Williams from Plant-Microbe Symbioses
Scoop.it!

The increasing importance of distinguishing among plant nitrogen sources

The increasing importance of distinguishing among plant nitrogen sources | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Many studies of plant nitrogen relations assess only the total amount of the element available from the soil and the total amount of the element within the plant. Nitrogen, however, is a constituent of diverse compounds that participate in some of the most energy-intensive reactions in the biosphere. The following characterizes some of these reactions, especially those that involve ammonium and nitrate, and highlights the importance of distinguishing both among the nitrogen sources available to plants and among the nitrogen forms within plants when considering plant responses to rising atmospheric CO2 concentrations.

Via Jean-Michel Ané
Mary Williams's insight:

The figure shows that because elevated CO2 lowers photorespiration in C3 plants, less NADH is available to reduce NO3, hence growth rate slows in plants that depend on NO3. It's particularly interesting that the three CO2 values represent 50 years ago (subambient), today (ambient), and elevated (50 years from now). That's a lot of change for a 100 year period...

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

The SCICOMM 25 most talked about science communication stories (weekly blog)

The SCICOMM 25 most talked about science communication stories (weekly blog) | Plant Biology Teaching Resources (Higher Education) | Scoop.it

I want to draw your attention to Kirk Englehardt's (@kirkenglehardt) weekly roundup of science communication stories (http://www.scilogs.com/the-leap/scicomm2541715/), with a facebook page too (https://www.facebook.com/scicommcentral).
I always find something interesting. Two gems I found this week - a new PLOS blog about science communication that's looking for contributors (http://blogs.plos.org/scicomm/sample-page/), and a 2014 Masters thesis by Sarah Wiley that analyzes how PIs meet the NSF's Broader Impact criteria - it's got a terrific literature review for those who might want to read up on the science of science outreach

(http://informalscience.org/…/ic-000-0…/Doing_broader_impacts)

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

USA National Phenology Network - Botany Primer

USA National Phenology Network - Botany Primer | Plant Biology Teaching Resources (Higher Education) | Scoop.it

This is an excellent guide to plant structure and function - downloadable PDF here

https://www.usanpn.org/files/shared/files/USA-NPN_Botany-Primer.pdf

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Exploiting Differential Gene Expression and Epistasis to Discover Candidate Genes for Drought-Associated QTLs in Arabidopsis thaliana

Exploiting Differential Gene Expression and Epistasis to Discover Candidate Genes for Drought-Associated QTLs in Arabidopsis thaliana | Plant Biology Teaching Resources (Higher Education) | Scoop.it

Nice combination of QTL mapping and gene expression analysis to identify new genes involved in drought response. From this approach, the authors "produced ranked lists of candidate genes for several drought-associated traits, including water use efficiency, growth, abscisic acid concentration (ABA), and proline concentration."

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Botanicalls Kit - KIT-10334 - SparkFun Electronics

Botanicalls Kit - KIT-10334 - SparkFun Electronics | Plant Biology Teaching Resources (Higher Education) | Scoop.it

"KIT-10334: Botanicalls Kits let plants reach out for human help! They offer a connection to your leafy pal via online Twitter status updates to your mobile phone."

Mary Williams's insight:

I just discovered SparkFun and I love it! It's a super program focused on enabling kids to make things with electronics. They have a wide variety of projects including some sparkly, blingy fun ones to broaden appeal beyond your stereotypical maker types.

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Not all GMO plants are created equally: it's the trait, not the method, that's important

Not all GMO plants are created equally: it's the trait, not the method, that's important | Plant Biology Teaching Resources (Higher Education) | Scoop.it
People have been changing plant genomes ever since agriculture got started thousands of years ago. Here are the high-tech ways researchers insert new genes into plants now.
more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

A Rough Guide to Types of Scientific Evidence, from Compuund Interest

A Rough Guide to Types of Scientific Evidence, from Compuund Interest | Plant Biology Teaching Resources (Higher Education) | Scoop.it

"‘Compound Interest’ is a blog by Andy Brunning, a chemistry teacher in the UK, creating graphics looking at the chemistry and chemical reactions we come across on a day-to-day basis."

You can follow compound interest on facebook and twitter too!

https://www.facebook.com/compoundchem

https://twitter.com/compoundchem

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

New free e-book every month from the University of Chicago Press ebook

New free e-book every month from the University of Chicago Press ebook | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Hybrid: The History and Science of Plant Breeding, by Noel Kingsbury, is available as a free download during the month of April. I really enjoyed this book!


more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Congratulations ASPB 2015 awardees!

Congratulations ASPB 2015 awardees! | Plant Biology Teaching Resources (Higher Education) | Scoop.it

Follow this link for a PDF listing the 2015 ASPB awardees
http://t.co/GT5u7N7uVx
Congratulations to all!
Innovation Prize for Agricultural Technology: Sherri Brown, David Fischhoff, Mike Koziel, Fred Perlak
Charles Albert Shull Award: Cyril Zipfel
Charles Reid Barnes Life Membership Award: Wendy F. Boss
Dennis R. Hoagland Award: Maria Harrison
Early Career Award: Daniel Chitwood
Eric E. Conn Young Investigator Award: Joe Louis
Excellence in Education Award: Stanley Roux
Fellow of ASPB: Caren Chang and Keiko Torii
Martin Gibbs Medal: Craig Pikaard
Stephen Hales Prize: Bob Goldberg
Corresponding Membership Nominees: Renate Scheibe, Kazuo Shinozaki

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Super online games to learn about evolution

Super online games to learn about evolution | Plant Biology Teaching Resources (Higher Education) | Scoop.it

Lots to explore here, including a game where you build phylogenetic trees based on shared traits - very well done!

more...
Carla Pinheiro's curator insight, Today, 2:31 PM

Design your tree and choose the path

Scooped by Mary Williams
Scoop.it!

Establishment of Anthoceros agrestis as a model species for studying the biology of hornworts

Establishment of Anthoceros agrestis as a model species for studying the biology of hornworts | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Establishment of Anthoceros agrestis as a model species for studying the biology of hornworts
Mary Williams's insight:

"Methods and resources have been developed to enable A. agrestis to be used as a model species for developmental, molecular, genomic, and genetic studies. This advance provides an unprecedented opportunity to investigate the biology of hornworts"

more...
Mila Bristow's curator insight, April 21, 7:33 PM

If you are starting to revise lifecycles for the exam, have a look at this. It might be useful. I might even use it for next year's teaching!

Scooped by Mary Williams
Scoop.it!

Don't forget, deadline for Teaching Tools pre-proposal submissions is 30 April

Don't forget, deadline for Teaching Tools pre-proposal submissions is 30 April | Plant Biology Teaching Resources (Higher Education) | Scoop.it

Read more here

http://blog.aspb.org/2015/03/02/share-your-enthusiasm-teaching-tools-submission-competition/

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Bill Nye, Science Guy, and GMOs - oh my!

Bill Nye, Science Guy, and GMOs - oh my! | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Bill Nye caused a bit of drama over his stance on GMOs with the publication of his recent book, Undeniable: Evolution and the Science of Creation. Biologists were dismayed by some of the unsourced ...
Mary Williams's insight:

Good on you, Bill! I will once again consider you "the science guy".

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Science Writing Competition - UWE Bristol: Science Communication Unit

Science Writing Competition - UWE Bristol: Science Communication Unit | Plant Biology Teaching Resources (Higher Education) | Scoop.it

Want to get recognized for your science writing?

They're looking for 700 words on "The science that will transform our future" - it seems like a perfect topic for plant scientists!

"There are no geographical restrictions on entrants but those wishing to take up the opportunity for work experience at BBC Focus and/or science writing classes must provide their own transport and accommodation for their visit to the BBC Focus offices in central Bristol and/or UWE's Frenchay Campus."

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Anna L. Sommer (1889–1973), pioneering plant scientist

Anna L. Sommer (1889–1973), pioneering plant scientist | Plant Biology Teaching Resources (Higher Education) | Scoop.it

I've been assembling some of the early papers that demonstrated the roles for micronutrients in plant growth and have enjoyed reading about Anna Sommer, one of the major contributors during what has been described as "the trace nutrient gold rush." Sommer is credited with being the first to experimentally demonstrate the essential nature of zinc, copper, and boron.


She received her PhD in Plant Nutrition and Chemistry in 1924, studying with C.P. Lipman. Together they wrote an influential paper that was published in Plant Physiology (Volume 1) in 1926, "Evidence on the indispensable nature of zinc and boron for higher green plants" (http://www.plantphysiol.org/content/1/3/231.full.pdf+html). The following year she published a solo article in Science "The search for elements essential in only small amounts for plant growth" (http://www.sciencemag.org/content/66/1716/482.full.pdf). From 1929 - 1949 she was a tenured scientist at the University of Minnesota.


You can read more about her life and work here http://www.aic.ca/gender/pdf/Women_in_Agronomy.pdf and here http://www.aaes.auburn.edu/comm/pubs/askmagazine/fall02/pioneeringwoman.html,but as one of the articles says, she left "a rich scientific legacy through her significant journal publications but little record of her personal life. Thus, we can only guess what her life was like as the only women tenured in an Agronomy Department."

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Global Plants in the Classroom - teaching and learning resources from JSTOR :-)

Global Plants in the Classroom - teaching and learning resources from JSTOR :-) | Plant Biology Teaching Resources (Higher Education) | Scoop.it
more...
No comment yet.
Rescooped by Mary Williams from Plant immunity and legume symbiosis
Scoop.it!

Secondary metabolites in plant innate immunity

Secondary metabolites in plant innate immunity | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Plant secondary metabolites carry out numerous functions in interactions between plants and a broad range of other organisms. Experimental evidence strongly supports the indispensable contribution of many constitutive and pathogen-inducible phytochemicals to plant innate immunity. Extensive studies on model plant species, particularly Arabidopsis thaliana, have brought significant advances in our understanding of the molecular mechanisms underpinning pathogen-triggered biosynthesis and activation of defensive secondary metabolites. However, despite the proven significance of secondary metabolites in plant response to pathogenic microorganisms, little is known about the precise mechanisms underlying their contribution to plant immunity. This insufficiency concerns information on the dynamics of cellular and subcellular localization of defensive phytochemicals during the encounters with microbial pathogens and precise knowledge on their mode of action. As many secondary metabolites are characterized by their in vitro antimicrobial activity, these compounds were commonly considered to function in plant defense as in planta antibiotics. Strikingly, recent experimental evidence suggests that at least some of these compounds alternatively may be involved in controlling several immune responses that are evolutionarily conserved in the plant kingdom, including callose deposition and programmed cell death.

Via Christophe Jacquet
more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

The cutting-edge science taking on some of the world's most notorious parasitic plants

The cutting-edge science taking on some of the world's most notorious parasitic plants | Plant Biology Teaching Resources (Higher Education) | Scoop.it
Little is known about how parasitic plants live side-by-side with their hosts. But new genetic techniques may help scientists gain further insights.
more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Wood Formation in Trees Is Increased by Manipulating PXY-Regulated Cell Division: Current Biology

Wood Formation in Trees Is Increased by Manipulating PXY-Regulated Cell Division: Current Biology | Plant Biology Teaching Resources (Higher Education) | Scoop.it
more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Plant Methods articles for teaching?

Plant Methods articles for teaching? | Plant Biology Teaching Resources (Higher Education) | Scoop.it

The journal Plant Methods is a treasure trove of interesting articles for teaching http://www.plantmethods.com/content - Have students select a paper & discuss the problem & how the new method addresses it. The journal covers a wide-range of methods including large and small scale measurements of chlorophyll fluorescence, lots of approaches to plant cell and organ imaging, measurements of water content and more. This figure is from a paper looking at fluid viscosity in pitcher plants! Truly something for everyone.....

more...
No comment yet.
Scooped by Mary Williams
Scoop.it!

Ag grads are finding a bumper crop of job opportunities

Ag grads are finding a bumper crop of job opportunities | Plant Biology Teaching Resources (Higher Education) | Scoop.it
MINNEAPOLIS — Adam Donkers and many of his friends at the University of Minnesota don’t need to worry about jobs after graduating. They’re majoring in agricultural sciences or agricultural business, and large and small companies are eager to hire them.
more...
No comment yet.