Talk:Endospore

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Untitled[edit]

About 60% of the paragraph on structure was lifted from Prescotts, Microbiology. It should probably be looked at.

-Brian —Preceding unsigned comment added by 76.113.151.197 (talk) 17:34, 9 March 2008 (UTC)[reply]


my name is nonya buisness

I propose the merger of this article with that for spores in general. The "spore" entry gives what I consider a bogus distinction: "Unlike eukaryotic spores, endospores are primarily a survival mechanism, not a reproductive method, and a bacterium only produces a single endospore."

First of all, are all the theoretic 4 spore progeny of a diploid eucaryotic cell equally viable? Also, what is considered "a reproductive method"? I consider any method of propagation to be reproductive. If endospores are able to remain viable while the media they are in or on move or spread, that allows the organism in question to propagate. In practical terms for small, fast growing organisms, propagation amounts to reproduction. The sporulating individual is best envisioned as part of a population, and on that basis a way for the population to reproduce is for individuals to be able to colonize other areas where they can then grow vegetatively, or to retain viability via suspended animation thru periods poor for growth to resume vegetative growth when conditions improve even in the same location. Robert Goodman (talk) 07:03, 18 January 2008 (UTC)[reply]

Article doesn't say what size they are typically[edit]

Just wanted to know what the size range is for endospores (wondered if the next rover to Mars would be able to see them with its hand lens) - anyway the article doesn't say. I found out that they are about 1 μm some smaller, and some very much larger, with the spores of Epulopiscium_fishelsoni amongst the largest (though I can't find any figures for its actual size) - anyway feel it would be a useful addition to the article to say what the size range is - what are the largest and smallest endospores known? Also Epulopiscium_fishelsoni might be worth a mention as an unusual organism that uses spore formation as standard method of reproduction rather than just reserving it for adverse conditions.

What about other spores[edit]

Bacterial spores are also produced in actinomycetes, Azotobacter and cyanobacteria (= so-called akinetes). Thus, a redirect from "bacterial spore" is wrong. --Vojtech.dostal (talk) 09:44, 9 May 2008 (UTC)[reply]

Easy to fix. Bacterial spore should redirect to a disambiguation page, giving the reader multiple article options from which to choose. Endospore would be only one of the multiple options then. —QuicksilverT @ 20:00, 2 January 2009 (UTC)[reply]
Done.--Curtis Clark (talk) 21:18, 2 January 2009 (UTC)[reply]

i dont want to die[edit]

does anyone know how dangerous these things are? Jake1993811 (talk) 20:09, 31 December 2011 (UTC)[reply]

Dormancy[edit]

I added information about how many years the endospore can stay dormant. It should be extended though, and the research labs that verified that, should be properly linked (I added only one link so far.) 178.190.69.12 (talk) 03:31, 22 January 2012 (UTC)[reply]

High Temperature[edit]

From the article:

Endospores can survive without nutrients. They are resistant to ultraviolet radiation, desiccation, high temperature, extreme freezing and chemical disinfectants.

What is 'high temperature? I don't need an exact number but an order of magnitude would greatly help the article (e.g. high temperature >1000C, or what ever it might be.) Ender8282 (talk) 20:05, 1 February 2012 (UTC)[reply]

composition of endospore wall?[edit]

what in the hell is it made of since its so damn resistiant??? — Preceding unsigned comment added by 24.118.60.18 (talk) 02:43, 10 October 2012 (UTC)[reply]

Quote by Steinn Sigurdsson[edit]

Why is an Astrophysist being quoted? 137.195.82.13 (talk) 13:09, 28 November 2016 (UTC)[reply]


Because long lived spores, resistant to radiation, and the common conditions in deep space adverse to other life, support some models of interstellar transpermia, and panspermia. The quoted astronomer probably has an interest in that, and has the credibility to write reliably enough for a publisher to distribute the cited article where he wrote reliably of long lived spores.

98.164.74.140 (talk) 11:24, 14 May 2020 (UTC)[reply]

I also find this an inappropriate source. The longevity of spores is already covered earlier in the article, with appropriate citations. Here it suggests some uncertainty about such long-term survival. This direct quote then seems out of place and adding more confusion than clarity. In favour of removing. Kyle MoJo (talk) 12:19, 29 April 2023 (UTC)[reply]

Endospore formation and cycle (picture)[edit]

A minor point - but I wonder if this image can be edited as it would appear the labels of "growth" and "cell division" should be swapped. — Preceding unsigned comment added by Syntanx (talk • contribs) 07:25, 12 December 2016 (UTC)[reply]

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Do any Archaea form endospores?[edit]

There is a conflict between the first sentence here---"An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria and archaea in the phylum Firmicutes"---and the article for "Archaea" which mentions: "unlike bacteria, no known species of Archaea forms endospores". Moreover Firmicutes appears to be a phylum of bacteria, not archaea. — Preceding unsigned comment added by Armin Rigo (talk • contribs) 16:59, 17 May 2020 (UTC)[reply]

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