Friday 26 July 2019
Registration and welcoming reception and poster set up.
Saturday 27 July 2019
Oral session and Poster session
Sunday 28 July 2019
Monday 29 July 2019
One day and/or half day trips to Volvox-field collection/algal culture collection at NIES etc. (not determined).
The physics is way beyond me, but a new paper by Gary Klindt and colleagues in New Journal of Physics uses Chlamydomonas as a model for flagellar synchronization:
We present a theory of flagellar synchronization in the green alga Chlamydomonas, using full treatment of flagellar hydrodynamics and measured beat patterns. We find that two recently proposed synchronization mechanisms, flagellar waveform compliance and basal coupling, stabilize anti-phase synchronization if operative in isolation. Their nonlinear superposition, however, can stabilize in-phase synchronization for suitable parameter choices, matching experimental observations.
Tell me you want to discuss something contentious on the phone, then go dark when I tell you I’d rather communicate by email. This has happened to me twice lately, once with a business I’ve criticized here on the blog, and once with a member of the staff here at Georgia Tech. What is it that’s so important that you want to schedule a phone call across five time zones, but suddenly a lot less important when I ask you to put it in writing?
That’s right, I’m using scare quotes. That’s because there is not and has never been any evidence, at least any that the public is privy to, that U.S. embassy personnel were attacked in Cuba.
It’s a near certainty that whatever happened in Cuba, it wasn’t a sonic attack, as I’ve been saying since September. After a months-long investigation, the FBI has concluded the same thing. According to the Associated Press,
Following months of investigation and four FBI trips to Havana, an interim report from the bureau’s Operational Technology Division says the probe has uncovered no evidence that sound waves could have damaged the Americans’ health, the AP has learned.
In a beautiful example of motivated reasoning, the Trump administration has shifted to an even goofier theory.
I reported last week on the publication of the Tetrabaena socialis nuclear genome by Jonathan Featherston and colleagues. Several other sources have reported on their work as well. The press release from University of Witwatersrand was reprinted by Eurekalert, Brinkwire, Archaeology News Network, and others. Shorter versions are at Worldwide News, The Everyday News, and Times Higher Education. The story has also been reported in Spanish, Russian, Czech, Vietnamese, and, of course, Afrikaans.
I was pleasantly surprised to see that a new article on naturopathy in Consumer Reports largely resists the temptation to engage in false balance. While it doesn’t come right out and say you shouldn’t waste your money, the article, by Consumer Reports’ Lead Investigative Health Reporter Jeneen Interlandi, is pretty damning.
One development I’m excited to see among the Volvox community is an increased focus on Tetrabaena, one of the smallest and simplest of the colonial volvocine algae. The one species in this genus, Tetrabaena socialis, was classified as Gonium until 1994, when Hisayoshi Nozaki and Motomi Itoh revised it not only to a new genus but a new family, the Tetrabaenaceae.
Their classification was based on morphological characters, but the backbone relationships, Tetrabaenaceae sister to Goniaceae + Volvocaceae, have subsequently been supported in several independent analyses using genetic data.
In 2013, very much to my surprise, Yoko Arakaki and colleagues showed that the (typically) four cells of Tetrabaena are connected by cytoplasmic bridges (this means that some of the ancestral character state reconstructions I did in grad school need to be revised). Their detailed analyses of Tetrabaena morphology and development are a valuable resource for comparative studies.
Now, in addition to the morphological data, we also have complete sequences for both organelle genomes (mitochondria and chloroplast) and for the nuclear genome. Jonathan Featherston and colleagues published the organelle genomes in 2016, and their new paper in Molecular Biology and Evolution describes the nuclear genome.