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What's wrong with this mtdm?!?!

This is a discussion on What's wrong with this mtdm?!?! within the General Orchid Culture forums, part of the Orchid Culture category; Originally Posted by lja They charge $4.00 to test a specimen for both CMV and ...

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  1. #11
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    Quote Originally Posted by lja
    They charge $4.00 to test a specimen for both CMV and ORSV
    Little nitpicking I am sure you meant CyMV (Cymbidium Mosaic Virus), not CMV (Cucumber Mosaic Virus). The latter has one of the widest host range, but the infection among orchids is not common.

  2. #12
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    Hi Nobody,
    It's a Hawaiian Sunset. Does it look viral to you? It's inches from the dumpster; I just don't think it's worth the hassle for a plant I can easily replace. You obviously know your virus stuff. What's your opinion?

  3. #13
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    I am sure you meant CyMV (Cymbidium Mosaic Virus), not CMV (Cucumber Mosaic Virus).
    Actually, the approved acronym for Cymbidium Mosaic Virus is CymMV.

    CyMV is the acronym used for the Clover Yellow Mosaic virus or the Cacao Yellow Mosaic Virus, depending on context, the letters of the acronym often appearing in upper case.

    However, all three acronyms are used interchangeably in the laypersons orchid literature when referring to Cymbidium Mosaic Virus, and CMV is used freely by many orchid virus testing laboratories in their ad copy. Again, given the context, nobody is confusing it with cucumbers, although you did make me laugh with that one.

    Please see the Universal Virus Database of the International Committee on Taxonomy of Viruses for specific details:

    http://www.ncbi.nlm.nih.gov/ICTVdb/index.htm

  4. #14
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    Quote Originally Posted by lja
    Actually, the approved acronym for Cymbidium Mosaic Virus is CymMV.
    That's kinda new to me. A quick Google search found a few abstracts. Here's one:

    LACK OF SEED TRANSMISSION OF CYMBIDIUM MOSAIC VIRUS IN DENDROBIUM

    KATRINA G. PORTER (2), ADELHEID R. KUEHNLE (2,3), AND JOHN S. HU (4)

    2 Department of Horticulture, University of Hawaii, 3190 Maile Way, Honolulu, Hawaii 96822 U.S.A.

    3 To whom requests for reprints should be addressed.
    4 Department of Plant Pathology, University of Hawaii, 3190 Maile Way, Honolulu, Hawaii 96822 U.S.A.


    ABSTRACT: Dendrobium hybrid seedlings derived from parent plants infected with Cymbidium mosaic potexvirus (CyMV) were tested for the presence of CyMV to determine if seed transmission occurred during green capsule culture. ELISA tests on 7,050 seedlings of seed-propagated D. Jaquelyn Thomas 'Uniwai Supreme' and 'Uniwai Prince' were negative for the virus, indicating that CyMV is not seed-transmitted.

    Here they use CyMV. And another:

    <TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD colSpan=2>Journal of Phytopathology





    Volume 149 Issue 9 Page 561 - September 2001
    doi:10.1046/j.1439-0434.2001.00633.x




    </TD><!-- /journal info --></TR><TR><TD colSpan=2 height=11></TD></TR><!-- abstract content --><TR><TD colSpan=2></TD><TR><TD class=abstracttitle colSpan=2>Coat Protein Gene of Cymbidium mosaic virus from Vanilla fragrans in Reunion Island</TD></TR><TR><TD class=maintextleftinclined colSpan=2>S. Gourdel & F. Leclercq-Le Quillec</TD></TR><TR><TD class=document-summary colSpan=2>Nucleotide and amino acid sequences of the coat protein (CP) of 12 isolates of Cymbidium mosaic virus from Vanilla fragrans in Reunion Island (CyMV-R) were compared with each other and with those of previously described Asian strains. Alignment revealed that CyMV-R isolates were highly homologous, suggesting that one strain is prevalent in Reunion. This strain also showed high homology with the Korean CyMV-K2 and Singapore CyMV-S2 strains, but nucleotide additions resulted in the carboxy-terminal ends of the CP sequences differing from those of the Korean CyMV-K1 and Singapore CyMV-K1 strains.











    </TD></TR></TBODY></TABLE>

    Quote Originally Posted by lja
    Again, given the context, nobody is confusing it with cucumbers, although you did make me laugh with that one.
    This is what I wrote: "The latter has one of the widest host range, but the infection among orchids is not common."

    One thing is that CMV infection is not limited to cucurbites. Also, it can infect some orchid species such as Cypripedium sp. or Vanilla planifolia although it may not be that prevalent. In addition, sometimes, people run a diagnostic test for unknowns along with well characterized virus such as CMV. So you can laugh all you want, but it's just a little nitpicking. Given the fact that some odd ones such as Turnip Mosaic or Yellow Bean Mosaic can show up in orchid collection, it's best to spell out without confusing people don't know much about plant virus. Dontcha think?

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    Yes, we can both post examples of the "correct" acronym, however, it's clear that all have been used to indicate Cymbidium Mosaic Virus. Yes, it's just a little nitpicking, and you can take that however you want.

    In the meantime, rather than "nitpick" at me, your knowledge could be put to better use by answering Liz's question about her plant in the post before mine--something you completely neglected to do in your sustained efforts at making me "wrong."


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    Quote Originally Posted by lja
    In the meantime, rather than "nitpick" at me, your knowledge could be put to better use by answering Liz's question about her plant in the post before mine--something you completely neglected to do in your sustained efforts at making me "wrong."
    I am not really interested in making you "wrong" other than nitpicking a little. And I did ask a question to Liz, which has not been answered yet. Something you completely failed to see? BTW, do you agree that maybe it should have been spelled out? "Yes, it's just a little nitpicking, and you can take that however you want."

  7. #17
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    Quote Originally Posted by Liz
    Hi Nobody,
    It's a Hawaiian Sunset. Does it look viral to you? It's inches from the dumpster; I just don't think it's worth the hassle for a plant I can easily replace. You obviously know your virus stuff. What's your opinion?
    Nobody, is this the post that *I* "completely failed to see?"

    Yes, I absolutely agree with you that had I spelled out "Cymbidium Mosaic Virus" rather than relied on any acronym for the virus name, doing so would have made it perfectly clear that I wasn't talking about (lol!) cucumbers! I *certainly* apologize to anybody who thought that I was.

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    Quote Originally Posted by lja
    Nobody, is this the post that *I* "completely failed to see?"
    No this is the one I am talking about:

    Quote Originally Posted by Nobody
    Is this a Mtdm. Issaku Nagata? I had two plants that had severe symptoms, like ones plant path people describe as "beautiful." They seem to be really susceptible, I think. I also noticed yellow Phalaenopsis tend to be susceptible to virus we have in our greenhouse.
    So I asked a question whether the plant in question is Mtdm. Issaku Nagata or not, but haven't seen anything in this thread. I also wrote in another thread that Milt. warscewiczii may be susceptible to virus according to Moir.

    Quote Originally Posted by lja
    doing so would have made it perfectly clear that I wasn't talking about (lol!) cucumbers! I *certainly* apologize to anybody who thought that I was.
    Ummm, it wasn't about cucumbers. It was about cucumber mosaic virus. No apolgies needed, though.

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    Nobody,
    I did respond that the plant was a Hawaiian Sunset. You missed it. It's buried way back there in the middle of your debate about the correct acronyms. But, whatever your opinion might have been about what was wrong with it is moot, because I dumped the plant.
    Thanks anyway.

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    So I asked a question whether the plant in question is Mtdm. Issaku Nagata or not, but haven't seen anything in this thread.
    Ummmm, the post that I quoted in my last message *was* her reply to your question........in this thread! I'm begining to find this very, very highly amusing. It was the reply you accused *me* of not seeing, yet here, even after I quoted it to you, you *still* haven't seen it!

    Because you apparently can't let go of those cucumbers and their mosaic viruses!


    ROFL!!!

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