tag:blogger.com,1999:blog-36572098.post7964960980938984596..comments2023-03-25T18:22:01.575+11:00Comments on MY GROWING PASSION: The Evolution of Chloroplasts: endosymbiosis and horizontal gene transferMargarethttp://www.blogger.com/profile/15456006889868172386noreply@blogger.comBlogger22125tag:blogger.com,1999:blog-36572098.post-53698397188029761922013-10-13T20:18:26.813+11:002013-10-13T20:18:26.813+11:00WOW
WOW<br />Deepak Malikhttps://www.blogger.com/profile/01786368679545537892noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-32277670357533147312011-05-12T11:24:17.401+10:002011-05-12T11:24:17.401+10:00Sorry, Ray, no.Sorry, Ray, no.Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-20646322171962989532010-10-02T09:03:15.827+10:002010-10-02T09:03:15.827+10:00Bjørn, that's very interesting, thanks. I'...Bjørn, that's very interesting, thanks. I'll follow up what he has to say. Wonder what Margulis thinks!Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-86821405953777446202010-10-01T23:58:02.437+10:002010-10-01T23:58:02.437+10:00I just found right now that Larry Moran has someth...I just found right now that <a rel="nofollow">Larry Moran has something to say</a> about the idea that the double membranes were the result of endocytosis:<br /><br /><i>The original bacteria had a double membrane and that double membrane was an integral part of the energy producing pathway that became so important for the eukaryotic cell. It's simply not true that the double membranes of Bjørn Østmanhttps://www.blogger.com/profile/08859177313382114917noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-65859628474709243672010-06-12T10:11:52.711+10:002010-06-12T10:11:52.711+10:00Hi Lee--thanks, and welcome! I'm glad you enjo...Hi Lee--thanks, and welcome! I'm glad you enjoyed the post.<br /><br />I'm not aware of any other examples of chloroplast capture, but I'm told that one of the genetics PhD students in my biology department is doing research into the green sea slug, so I might follow up with her. If I discover more, I'll post it here.<br /><br />Horizontal gene transfer is a pretty common process,Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-91516284360016943382010-06-12T09:45:49.769+10:002010-06-12T09:45:49.769+10:00Just found this article/post. This is terrific! Cr...Just found this article/post. This is terrific! Crystal clear explanation w/great illustrations.<br /><br />Is the green sea slug the only example of an animal capturing functioning chloroplasts? Are there any observed cases of recent horizontal gene transfer? Is there speculation of what the threshold/conditions need to be for it to occur?<br /><br />Thanks for such a stimulating post.Unknownhttps://www.blogger.com/profile/00516262013913137403noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-65549408298611303772010-06-12T09:45:49.768+10:002010-06-12T09:45:49.768+10:00Just found this article/post. This is terrific! Cr...Just found this article/post. This is terrific! Crystal clear explanation w/great illustrations.<br /><br />Is the green sea slug the only example of an animal capturing functioning chloroplasts? Are there any observed cases of recent horizontal gene transfer? Is there speculation of what the threshold/conditions need to be for it to occur?<br /><br />Thanks for such a stimulating post.Unknownhttps://www.blogger.com/profile/00516262013913137403noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-83657148685685596332010-06-06T16:44:39.440+10:002010-06-06T16:44:39.440+10:00Sorry about that. I did think outerboard was a rat...Sorry about that. I did think outerboard was a rather odd name, but hey, this is the Internet. :)Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-78142212108535162522010-06-06T16:42:10.430+10:002010-06-06T16:42:10.430+10:00I'll forgive the misspelling of "outerhoa...I'll forgive the misspelling of "outerhoard", which has a "h", not a "b". :-)<br /><br />It's my blog's name rather than mine (after all, a blog is a hoard of thoughts, ideas, etc). But the convenience of signing with OpenID overrules the weirdness of using my blog's name to identify me. Pros and cons.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-36572098.post-18622770057762766522010-06-03T21:20:13.911+10:002010-06-03T21:20:13.911+10:00You're quite right, Outerboard--thanks for the...You're quite right, Outerboard--thanks for the heads-up!<br /><br />I'll edit it, making clear what the original text was.<br /><br />Cheers,<br /><br />MargaretMargarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-39637197952809519442010-06-03T20:58:29.923+10:002010-06-03T20:58:29.923+10:00As I write this, I'm in the process of reading...As I write this, I'm in the process of reading the nominations for the 2010 3QD Prize in Science. This article is one of the better nominations, bearing in mind that I'm not even halfway through the list. <br /><br />My main reservation is with this sentence: "<i>Instead of being wrapped around histones in the familiar double helix shape, they are circular in form.</i>" That Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-36572098.post-9245112509235409202010-05-06T08:19:00.214+10:002010-05-06T08:19:00.214+10:00Haha, thanks for responding. Hmmm, you're into...Haha, thanks for responding. Hmmm, you're into endosymbiosis and I'm into autopoiesis (in the work of Varela, Maturana, and Antonio Damasio in complex biological systems relating to consciousness). Wonder if the two terms can be linked :-)Unknownhttps://www.blogger.com/profile/11143101613666838042noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-84736311229087857552010-05-05T14:40:09.386+10:002010-05-05T14:40:09.386+10:00Dave, that is a magnificent tale. Thanks for shari...Dave, that is a magnificent tale. Thanks for sharing it here. Mind you, although leeches are not my favourite form of inverts, and even though I am allergic to their bites, I think they're a far more sophisticated and valuable lifeform than Sarah Palin. ;)Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-75520090902688014352010-05-05T09:21:36.422+10:002010-05-05T09:21:36.422+10:00I have to share this with you Margaret. Apart from...I have to share this with you Margaret. Apart from discovering your wonderful blog, which reanimates my long-held fascination with biology, I should say how I got here.<br /><br />I was commenting on Time magazine's inclusion of Sarah Palin as one of the 100 most influential people. I used the analogy of a sea slug to suggest the regression in U.S. political thought (as in 'back to sea Unknownhttps://www.blogger.com/profile/11143101613666838042noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-14215426305096501882010-04-14T15:47:44.996+10:002010-04-14T15:47:44.996+10:00I don't know why, Simon, but my blogger accoun...I don't know why, Simon, but my blogger account wouldn't let me approve your post! Anyway, here it is:<br /><br />"I only have freshwater aquariums since moving down to Tas. I'm in the process of planning two new ones though. The first is a temperate seagrass tank for seahorses and the other is an anemone tank for clownfish. Still a while off as there is much to learn about Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-79043034653105413172010-04-13T08:11:24.749+10:002010-04-13T08:11:24.749+10:00Okay, worked for me that time. How cool that you u...Okay, worked for me that time. How cool that you use algae-eating invertebrates to clean your aquarium! Very impressive. I've never owned a marine aquarium. It's one of those "one day..." things. :)Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-83296724215466232632010-04-12T22:50:45.096+10:002010-04-12T22:50:45.096+10:00That's strange... I copied and pasted the link...That's strange... I copied and pasted the link above and it worked for me. This is it here: http://www.seaslugforum.net/showall/dolabrazAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-36572098.post-43271237740001601272010-04-12T16:45:30.835+10:002010-04-12T16:45:30.835+10:00(Er... "certainly", not "certain&qu...(Er... "certainly", not "certain". :)Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-1582167633487105662010-04-12T16:45:00.151+10:002010-04-12T16:45:00.151+10:00Hi Simon,
That link to your photo isn't worki...Hi Simon,<br /><br />That link to your photo isn't working for me. I get the top of the page, but no real content. The response is really interesting. I believe someone at Macquarie Uni is doing her doctorate on green sea slugs. I must see what she's up to!<br /><br />Micelles are deeply cool, aren't they? I haven't looked into them in any depth at this point, but they are such a Margarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-879157662496714002010-04-11T21:12:07.781+10:002010-04-11T21:12:07.781+10:00Back in 2003 I sent a message to Bill Rudman of th...Back in 2003 I sent a message to Bill Rudman of the Australian Museum regarding the likelyhood of photosyhthetic ability in an animal very similar to a sea slug; a sea hare (I didn't know it was a sea hare at the time). You can see my question and the photo I sent in here near the bottom of the page: http://www.seaslugforum.net/showall/dolabraz . Bill's reply stated he wasn't aware ofAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-36572098.post-80571941780515588202010-04-11T19:17:47.460+10:002010-04-11T19:17:47.460+10:00Thanks! I am so pleased I explained it clearly. Th...Thanks! I am so pleased I explained it clearly. That's the trick with writing about science, as I increasingly discover. But so much in biology is just gobsmackingly wonderful, it just aches to shared with non-biologists.<br /><br />There's a science fiction book called "The Child Garden" by Geoff Ryman in which humans have been genetically modified to be able to photosynthesiseMargarethttps://www.blogger.com/profile/15456006889868172386noreply@blogger.comtag:blogger.com,1999:blog-36572098.post-73493847689832749802010-04-11T19:11:24.997+10:002010-04-11T19:11:24.997+10:00Wow!
great post, great images.
I'd never hea...Wow!<br /><br />great post, great images.<br /><br />I'd never heard of RuBisCO before, but now I know it's awesome!<br /><br />I first heard about prokaryotes and eukaryotes some years ago, but this is the first time I've really got it, due to your clear explanation and particularly your graphic showing the endosymbiosis that results in a cell with nucleus, mitochondria, and greenspacehttps://www.blogger.com/profile/17836369141802772172noreply@blogger.com