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From: Athel Cornish-Bowden <me@yahoo.com>
Newsgroups: talk.origins
Subject: Re: A large colonial choanoflagellate from Mono Lake harbors live bacteria
Date: Sat, 24 Aug 2024 15:32:17 +0200
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On 2024-08-24 11:02:10 +0000, Ernest Major said:

> On 24/08/2024 10:54, Athel Cornish-Bowden wrote:
>> On 2024-08-23 19:59:29 +0000, erik simpson said:
>> 
>>> https://journals.asm.org/doi/10.1128/mbio.01623-24
>>> 
>>> ABSTRACT
>>> As the closest living relatives of animals, choanoflagellates offer 
>>> insights into the ancestry of animal cell physiology. Here, we report 
>>> the isolation and characterization of a colonial choanoflagellate from 
>>> Mono Lake, California. The choanoflagellate forms large spherical 
>>> colonies that are an order of magnitude larger
>> 
>> by volume, by surface area, by diameter? It makes a huge difference.
> 
> It's open access.

Maybe, but are you seriously suggesting that we need to go to a page on 
the web to find out how to correct a major omission in what you wrote?

>  S. rosetta colonies are 10-15 micrometers in diameter. B. monosierra 
> colonies are 10-120 micrometers in diameter. The respective modes are 
> 12 and 26 micrometers in diameter. So the maximum is an order of 
> magnitude larger in diameter, and the mode an order of magnitude larger 
> in volume. The caption to figure 1F applies order of magnitude to the 
> diameter, in which case the abstract should have included the words "up 
> to".
>> 
>>>  than those formed by the closely related choanoflagellate Salpingoeca 
>>> rosetta. In cultures maintained in the laboratory, the lumen of the 
>>> spherical colony is filled with a branched network of extracellular 
>>> matrix and colonized by bacteria, including diverse Gammaproteobacteria 
>>> and Alphaproteobacteria. We propose to erect Barroeca monosierra gen. 
>>> nov., sp. nov. Hake, Burkhardt, Richter, and King to accommodate this 
>>> extremophile choanoflagellate. The physical association between 
>>> bacteria and B. monosierra in culture presents a new experimental model 
>>> for investigating interactions among bacteria and eukaryotes. Future 
>>> work will investigate the nature of these interactions in wild 
>>> populations and the mechanisms underpinning the colonization of B. 
>>> monosierra spheres by bacteria.


-- 
Athel -- French and British, living in Marseilles for 37 years; mainly 
in England until 1987.