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SECOND PROCESS. "The separation of cell division products or their aggregation by means of a common extracellular matrix, pit connections, shared loricas, stalks, etc. determines whether the body plan is unicellular or colonial (e.g. Calcidiscus or Phaeocystis)." http://aob.oxfordjournals.org/content/85/4/411.full.pdf View in LinkedIn

FIRST PROCESS. "The presence or absence of vegetative cytokinesis determines whether the plant body is based on a uni- or multi-nucleate cellular plan (e.g. Chlamydomonas or Bryopsis)." http://aob.oxfordjournals.org/content/85/4/411.full.pdf View in LinkedIn

NEMATODE WORMS. “A pair of neurons is required for nematodes to be able to navigate using the Earth's magnetic field.” https://lnkd.in/dyFt5tZ View in LinkedIn

MICE. “We demonstrated magnetoreception in wood mice and provide first evidence for a radical-pair mechanism in a mammal.” http://www.nature.com/articles/srep09917 View in LinkedIn

MAGNETITE. “The existence of magnetite crystal chains, which lead to a magnetically oriented swimming behavior in so-called “magnetotactic bacteria”, unequivocally proves that living cells can, in principle, synthesize magnetite that will align with the geomagnetic field. However, the magnetite crystals in these bacteria are not part of an active sensory system; they only lead to passive alignment.” https://lnkd.in/eUbuD-a View in LinkedIn

MAGNETIC BACTERIA. “The molecular mechanism of magnetite synthesis in magnetotactic bacteria is a complex, multistep process, which includes magnetosome vesicle formation, iron transport and magnetite crystallization.” https://lnkd.in/es5DATt View in LinkedIn

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SO ENDS this two weekend indulgence in the topic of plant body plan evolution. For younger readers, it is a glimpse into the thought life of botanists who are concerned with these issues, and whose life revolves around figuring out how they came about; it is a rate chance, from the comfort of your own chair, to walk in the shoes of another person in an intellectually intimate way. This is true for all these postings, in their different disciplines. View in LinkedIn

CONVERGED OR DIVERSIFIED. "This body plan classification scheme draws sharp attention to the extent to which body plans have diversified within or converged among the various plant lineages and how they have become confined in number in evolutionarily more derived groups." http://aob.oxfordjournals.org/content/85/4/411.full.pdf View in LinkedIn

MAGNETIC FIELD LINES. “The magnetic compass of birds works in a way that is very different from our technical compass: it is an inclination compass that ignores polarity and instead relies on the course of the field lines and their inclination; it is finely tuned to the intensity of the local magnetic field in a narrow, but flexible functional window, and it requires short-wavelengths of light.” https://lnkd.in/dmczyTc View in LinkedIn