Virus in Nerine. Was: Nerine sarniensis

J.E. Shields
Mon, 07 Nov 2005 06:22:01 PST
Hi All,

Alberto's comments on fertilizer vs. viruses make good sense.  It would 
apply to builbs grown oputdoors, but how about those inside a greenhouse?

I do not know whether latent virus infection has ever been demonstrated in 
plants, but it is a very well-studied condition in bacteria.  It occurs 
when the virus genome is inserted into a host cell chromosome.  It then 
just sits there, latent, until some external condition causes the virus 
genes to be expressed.

It is clear that some Nerine, at least the broadleaf varieties, do get 
viral infections at times.  It would be worth someone's time to study the 
phenomenon in Nerine sarniensis and its hybrids, as well as in N. 
bowdenii.  I'll look into getting a small pilot study done somewhere.

We could buy bulbs of Nerine bowdenii, but would someone be able to supply 
some healthy bulbs of N. sarniensis or its hybrids for such a study?

Jim Shields
in central Indiana (USA)

At 07:26 PM 11/6/2005 -0800, you wrote:
>At 7:39 PM -0500 11/5/05, J.E. Shields wrote:
> >Arnold, we heard it from Sir Peter Smithers in the old [BULB] list. Sir
> >Peter has said that he is convinced that feeding any of the broad-leaf
> >Nerine varieties releases latent viruses, which can decimate a collection.
>**Interesting. I don't know how fertilizing can 'release latent viruses'.

Jim Shields             USDA Zone 5             Shields Gardens, Ltd.
P.O. Box 92              WWW:
Westfield, Indiana 46074, USA
Tel. ++1-317-867-3344     or      toll-free 1-866-449-3344 in USA

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